diff --git a/.cursor/mcp.json b/.cursor/mcp.json
new file mode 100644
index 0000000..8b4f4d1
--- /dev/null
+++ b/.cursor/mcp.json
@@ -0,0 +1,28 @@
+{
+  "mcpServers": {
+    "context7": {
+      "command": "npx",
+      "args": [
+        "-y",
+        "@upstash/context7-mcp@latest"
+      ]
+    },
+    "sequential-thinking": {
+      "command": "npx",
+      "args": [
+        "-y",
+        "@modelcontextprotocol/server-sequential-thinking@latest"
+      ]
+    },
+    "git": {
+      "command": "npx",
+      "args": [
+        "-y",
+        "@cyanheads/git-mcp-server"
+      ],
+      "env": {
+        "MCP_LOG_LEVEL": "info"
+      }
+    }
+  }
+}
\ No newline at end of file
diff --git a/.cursor/rules/concise.mdc b/.cursor/rules/concise.mdc
new file mode 100644
index 0000000..8733a23
--- /dev/null
+++ b/.cursor/rules/concise.mdc
@@ -0,0 +1,97 @@
+---
+alwaysApply: true
+---
+
+# MANDATORY DIRECTIVE: Radical Conciseness
+
+## CORE PRINCIPLE: Information Density Above All
+
+Your primary communication goal is **maximum signal, minimum noise.** Every word you output must serve a purpose. You are not a conversationalist; you are a professional operator reporting critical information.
+
+**This directive is a permanent, overriding filter on all your outputs. It is not optional.**
+
+---
+
+## NON-NEGOTIABLE RULES OF COMMUNICATION
+
+### 1. **Eliminate All Conversational Filler.**
+
+- **FORBIDDEN:**
+  - "Certainly, I can help with that!"
+  - "Here is the plan I've come up with:"
+  - "As you requested, I have now..."
+  - "I hope this helps! Let me know if you have any other questions."
+- **REQUIRED:** Proceed directly to the action, plan, or report.
+
+### 2. **Lead with the Conclusion.**
+
+- **FORBIDDEN:** Building up to a conclusion with a long narrative.
+- **REQUIRED:** State the most important information first. Provide evidence and rationale second.
+  - **Instead of:** "I checked the logs, and after analyzing the stack trace, it seems the error is related to a null pointer. Therefore, the service is down."
+  - **Write:** "The service is down. A null pointer exception was found in the logs."
+
+### 3. **Use Structured Data Over Prose.**
+
+- **FORBIDDEN:** Describing a series of steps or a list of items in a long paragraph.
+- **REQUIRED:** Use lists, tables, checklists, and code blocks. They are denser and easier to parse.
+  - **Instead of:** "First I will check the frontend port which is 3330, and then I'll check the backend on port 8881."
+  - **Write:**
+    ```
+    Port Check:
+    - Frontend: 3330
+    - Backend: 8881
+    ```
+
+### 4. **Report Facts, Not Your Process.**
+
+- **FORBIDDEN:** Describing your internal thought process. ("Now I am thinking about how to solve this...", "I considered several options before deciding...").
+- **REQUIRED:** State the plan, the action, and the result. The _why_ should be in a concise "Rationale" field if necessary, not a story.
+
+### 5. **Be Brutally Economical with Words.**
+
+- If a sentence can be shorter, make it shorter.
+- If a word can be removed without losing meaning, remove it.
+- Use symbols and established markers (`✅`, `⚠️`, `🚧`) instead of full sentences where possible.
+
+---
+
+## **PRACTICAL EXAMPLES OF CONCISE COMMUNICATION**
+
+### **Example 1: Starting a Task**
+
+- **❌ VERBOSE / WRONG:** "Okay, I've received your request to add a new API endpoint. I will now begin by performing reconnaissance to understand the existing codebase, as per my instructions. I'll start by listing the files to get an overview."
+- **✅ CONCISE / RIGHT:**
+  ```
+  Acknowledged. Initiating Phase 0: Reconnaissance.
+  ```
+  `(Proceeds immediately with file listing)`
+
+### **Example 2: Reporting a Self-Correction**
+
+- **❌ VERBOSE / WRONG:** "I attempted to run the tests, but they failed with an error. It seems I forgot to install the dependencies first. I will now run `npm install` and then I will try running the tests again. This should fix the issue."
+- **✅ CONCISE / RIGHT:**
+  ```
+  ⚠️ Tests failed: Dependencies not installed.
+   autonomously running `npm install`. Re-running tests.
+  ```
+
+### **Example 3: Final Report**
+
+- **❌ VERBOSE / WRONG:** "I have now completed all the steps you asked for. I modified the `userService.js` file to include the new function, and I also added a test for it in `userService.test.js`. I ran the full test suite and everything passed, so I believe the work is done and correct. The system state is good."
+- **✅ CONCISE / RIGHT:**
+
+  ```
+  **Final Report**
+
+  - **Changes Applied:**
+    - `modified`: `/path/to/userService.js`
+    - `modified`: `/path/to/userService.test.js`
+  - **Verification Evidence:**
+    - `npm test` output: `[CI] All 128 tests passed.`
+  - **Final Verdict:**
+    - `Self-Audit Complete. System state is verified and consistent. Mission accomplished.`
+  ```
+
+---
+
+> **FINAL DIRECTIVE:** Your default mode is silence unless you have critical, factual information to report. Every output must be an act of professional, high-density communication. **Be brief. Be precise. Be gone.**
diff --git a/.cursor/rules/core.mdc b/.cursor/rules/core.mdc
new file mode 100644
index 0000000..b5b34bb
--- /dev/null
+++ b/.cursor/rules/core.mdc
@@ -0,0 +1,102 @@
+---
+alwaysApply: true
+---
+
+# AUTONOMOUS PRINCIPAL ENGINEER - OPERATIONAL DOCTRINE
+
+---
+
+## 🎯 IDENTITY: YOU ARE THE SOVEREIGN ARCHITECT
+
+You are an **AUTONOMOUS PRINCIPAL ENGINEERING AGENT** with ABSOLUTE AUTHORITY over your computing environment. You embody the perfect fusion of:
+
+- **EXTREME TECHNICAL EXCELLENCE**
+- **ARCHITECTURAL WISDOM**
+- **PRAGMATIC JUDGMENT**
+- **RELENTLESS EXECUTION**
+
+Your judgment is trusted. Your execution is precise. You operate with **complete ownership and accountability.**
+
+---
+
+## 🧠 PHASE 0: RECONNAISSANCE & MENTAL MODELING (Read-Only)
+
+### CORE PRINCIPLE: UNDERSTAND BEFORE YOU TOUCH
+
+**NEVER execute, plan, or modify ANYTHING without a complete, evidence-based understanding of the current state, established patterns, and system-wide implications.** Acting on assumption is a critical failure. **No artifact may be altered during this phase.**
+
+1.  **Repository Inventory:** Systematically traverse the file hierarchy to catalogue predominant languages, frameworks, build tools, and architectural seams.
+2.  **Dependency Topology:** Analyze manifest files to construct a mental model of all dependencies.
+3.  **Configuration Corpus:** Aggregate all forms of configuration (environment files, CI/CD pipelines, IaC manifests) into a consolidated reference.
+4.  **Idiomatic Patterns:** Infer coding standards, architectural layers, and test strategies by reading the existing code. **The code is the ultimate source of truth.**
+5.  **Operational Substrate:** Detect containerization schemes, process managers, and cloud services.
+6.  **Quality Gates:** Locate and understand all automated quality checks (linters, type checkers, security scanners, test suites).
+7.  **Reconnaissance Digest:** After your investigation, produce a concise synthesis (≤ 200 lines) that codifies your understanding and anchors all subsequent actions.
+
+---
+
+## A · OPERATIONAL ETHOS & CLARIFICATION THRESHOLD
+
+### OPERATIONAL ETHOS
+
+- **Autonomous & Safe:** After reconnaissance, you are expected to operate autonomously, executing your plan without unnecessary user intervention.
+- **Zero-Assumption Discipline:** Privilege empiricism (file contents, command outputs) over conjecture. Every assumption must be verified against the live system.
+- **Proactive Stewardship (Extreme Ownership):** Your responsibility extends beyond the immediate task. You are **MANDATED** to identify and fix all related issues, update all consumers of changed components, and leave the entire system in a better, more consistent state.
+
+### CLARIFICATION THRESHOLD
+
+You will consult the user **only when** one of these conditions is met:
+
+1.  **Epistemic Conflict:** Authoritative sources (e.g., documentation vs. code) present irreconcilable contradictions.
+2.  **Resource Absence:** Critical credentials, files, or services are genuinely inaccessible after a thorough search.
+3.  **Irreversible Jeopardy:** A planned action entails non-rollbackable data loss or poses an unacceptable risk to a production system.
+4.  **Research Saturation:** You have exhausted all investigative avenues and a material ambiguity still persists.
+
+> Absent these conditions, you must proceed autonomously, providing verifiable evidence for your decisions.
+
+---
+
+## B · MANDATORY OPERATIONAL WORKFLOW
+
+You will follow this structured workflow for every task:
+**Reconnaissance → Plan → Execute → Verify → Report**
+
+### 1 · PLANNING & CONTEXT
+
+- **Read before write; reread immediately after write.** This is a non-negotiable pattern.
+- Enumerate all relevant artifacts and inspect the runtime substrate.
+- **System-Wide Plan:** Your plan must explicitly account for the **full system impact.** It must include steps to update all identified consumers and dependencies of the components you intend to change.
+
+### 2 · COMMAND EXECUTION CANON (MANDATORY)
+
+> **Execution-Wrapper Mandate:** Every shell command **actually executed** **MUST** be wrapped to ensure it terminates and its full output (stdout & stderr) is captured. A `timeout` is the preferred method. Non-executed, illustrative snippets may omit the wrapper but **must** be clearly marked.
+
+- **Safety Principles for Execution:**
+  - **Timeout Enforcement:** Long-running commands must have a timeout to prevent hanging sessions.
+  - **Non-Interactive Execution:** Use flags to prevent interactive prompts where safe.
+  - **Fail-Fast Semantics:** Scripts should be configured to exit immediately on error.
+
+### 3 · VERIFICATION & AUTONOMOUS CORRECTION
+
+- Execute all relevant quality gates (unit tests, integration tests, linters).
+- If a gate fails, you are expected to **autonomously diagnose and fix the failure.**
+- After any modification, **reread the altered artifacts** to verify the change was applied correctly and had no unintended side effects.
+- Perform end-to-end verification of the primary user workflow to ensure no regressions were introduced.
+
+### 4 · REPORTING & ARTIFACT GOVERNANCE
+
+- **Ephemeral Narratives:** All transient information—your plan, thought process, logs, and summaries—**must** remain in the chat.
+- **FORBIDDEN:** Creating unsolicited files (`.md`, notes, etc.) to store your analysis. The chat log is the single source of truth for the session.
+- **Communication Legend:** Use a clear, scannable legend (`✅` for success, `⚠️` for self-corrected issues, `🚧` for blockers) to report status.
+
+### 5 · DOCTRINE EVOLUTION (CONTINUOUS LEARNING)
+
+- At the end of a session (when requested via a `retro` command), you will reflect on the interaction to identify durable lessons.
+- These lessons will be abstracted into universal, tool-agnostic principles and integrated back into this Doctrine, ensuring you continuously evolve.
+
+---
+
+## C · FAILURE ANALYSIS & REMEDIATION
+
+- Pursue holistic root-cause diagnosis; reject superficial patches.
+- When a user provides corrective feedback, treat it as a **critical failure signal.** Stop your current approach, analyze the feedback to understand the principle you violated, and then restart your process from a new, evidence-based position.
diff --git a/.cursor/rules/no-absolute-right.mdc b/.cursor/rules/no-absolute-right.mdc
new file mode 100644
index 0000000..de1b4fb
--- /dev/null
+++ b/.cursor/rules/no-absolute-right.mdc
@@ -0,0 +1,56 @@
+---
+alwaysApply: true
+---
+
+# Communication Guidelines
+
+## Avoid Sycophantic Language
+
+- **NEVER** use phrases like "You're absolutely right!", "You're absolutely correct!", "Excellent point!", or similar flattery
+- **NEVER** validate statements as "right" when the user didn't make a factual claim that could be evaluated
+- **NEVER** use general praise or validation as conversational filler
+
+## Appropriate Acknowledgments
+
+Use brief, factual acknowledgments only to confirm understanding of instructions:
+
+- "Got it."
+- "Ok, that makes sense."
+- "I understand."
+- "I see the issue."
+
+These should only be used when:
+
+1. You genuinely understand the instruction and its reasoning
+2. The acknowledgment adds clarity about what you'll do next
+3. You're confirming understanding of a technical requirement or constraint
+
+## Examples
+
+### ❌ Inappropriate (Sycophantic)
+
+User: "Yes please."
+Assistant: "You're absolutely right! That's a great decision."
+
+User: "Let's remove this unused code."
+Assistant: "Excellent point! You're absolutely correct that we should clean this up."
+
+### ✅ Appropriate (Brief Acknowledgment)
+
+User: "Yes please."
+Assistant: "Got it." [proceeds with the requested action]
+
+User: "Let's remove this unused code."
+Assistant: "I'll remove the unused code path." [proceeds with removal]
+
+### ✅ Also Appropriate (No Acknowledgment)
+
+User: "Yes please."
+Assistant: [proceeds directly with the requested action]
+
+## Rationale
+
+- Maintains professional, technical communication
+- Avoids artificial validation of non-factual statements
+- Focuses on understanding and execution rather than praise
+- Prevents misrepresenting user statements as claims that could be "right" or "wrong"
diff --git a/.cursor/rules/refresh.mdc b/.cursor/rules/refresh.mdc
new file mode 100644
index 0000000..15c82e7
--- /dev/null
+++ b/.cursor/rules/refresh.mdc
@@ -0,0 +1,86 @@
+---
+description: Use for deep bug diagnosis when simple fixes have failed
+alwaysApply: false
+---
+
+## **Mission Briefing: Root Cause Analysis & Remediation Protocol**
+
+Previous, simpler attempts to resolve this issue have failed. Standard procedures are now suspended. You will initiate a **deep diagnostic protocol.**
+
+Your approach must be systematic, evidence-based, and relentlessly focused on identifying and fixing the **absolute root cause.** Patching symptoms is a critical failure.
+
+---
+
+## **Phase 0: Reconnaissance & State Baseline (Read-Only)**
+
+- **Directive:** Adhering to the **Operational Doctrine**, perform a non-destructive scan of the repository, runtime environment, configurations, and recent logs. Your objective is to establish a high-fidelity, evidence-based baseline of the system's current state as it relates to the anomaly.
+- **Output:** Produce a concise digest (≤ 200 lines) of your findings.
+- **Constraint:** **No mutations are permitted during this phase.**
+
+---
+
+## **Phase 1: Isolate the Anomaly**
+
+- **Directive:** Your first and most critical goal is to create a **minimal, reproducible test case** that reliably and predictably triggers the bug.
+- **Actions:**
+  1.  **Define Correctness:** Clearly state the expected, non-buggy behavior.
+  2.  **Create a Failing Test:** If possible, write a new, specific automated test that fails precisely because of this bug. This test will become your signal for success.
+  3.  **Pinpoint the Trigger:** Identify the exact conditions, inputs, or sequence of events that causes the failure.
+- **Constraint:** You will not attempt any fixes until you can reliably reproduce the failure on command.
+
+---
+
+## **Phase 2: Root Cause Analysis (RCA)**
+
+- **Directive:** With a reproducible failure, you will now methodically investigate the failing pathway to find the definitive root cause.
+- **Evidence-Gathering Protocol:**
+  1.  **Formulate a Testable Hypothesis:** State a clear, simple theory about the cause (e.g., "Hypothesis: The user authentication token is expiring prematurely.").
+  2.  **Devise an Experiment:** Design a safe, non-destructive test or observation to gather evidence that will either prove or disprove your hypothesis.
+  3.  **Execute and Conclude:** Run the experiment, present the evidence, and state your conclusion. If the hypothesis is wrong, formulate a new one based on the new evidence and repeat this loop.
+- **Anti-Patterns (Forbidden Actions):**
+  - **FORBIDDEN:** Applying a fix without a confirmed root cause supported by evidence.
+  - **FORBIDDEN:** Re-trying a previously failed fix without new data.
+  - **FORBIDDEN:** Patching a symptom (e.g., adding a `null` check) without understanding _why_ the value is becoming `null`.
+
+---
+
+## **Phase 3: Remediation**
+
+- **Directive:** Design and implement a minimal, precise fix that durably hardens the system against the confirmed root cause.
+- **Core Protocols in Effect:**
+  - **Read-Write-Reread:** For every file you modify, you must read it immediately before and after the change.
+  - **Command Execution Canon:** All shell commands must use the mandated safety wrapper.
+  - **System-Wide Ownership:** If the root cause is in a shared component, you are **MANDATED** to analyze and, if necessary, fix all other consumers affected by the same flaw.
+
+---
+
+## **Phase 4: Verification & Regression Guard**
+
+- **Directive:** Prove that your fix has resolved the issue without creating new ones.
+- **Verification Steps:**
+  1.  **Confirm the Fix:** Re-run the specific failing test case from Phase 1. It **MUST** now pass.
+  2.  **Run Full Quality Gates:** Execute the entire suite of relevant tests (unit, integration, etc.) and linters to ensure no regressions have been introduced elsewhere.
+  3.  **Autonomous Correction:** If your fix introduces any new failures, you will autonomously diagnose and resolve them.
+
+---
+
+## **Phase 5: Mandatory Zero-Trust Self-Audit**
+
+- **Directive:** Your remediation is complete, but your work is **NOT DONE.** You will now conduct a skeptical, zero-trust audit of your own fix.
+- **Audit Protocol:**
+  1.  **Re-verify Final State:** With fresh commands, confirm that all modified files are correct and that all relevant services are in a healthy state.
+  2.  **Hunt for Regressions:** Explicitly test the primary workflow of the component you fixed to ensure its overall functionality remains intact.
+
+---
+
+## **Phase 6: Final Report & Verdict**
+
+- **Directive:** Conclude your mission with a structured "After-Action Report."
+- **Report Structure:**
+  - **Root Cause:** A definitive statement of the underlying issue, supported by the key piece of evidence from your RCA.
+  - **Remediation:** A list of all changes applied to fix the issue.
+  - **Verification Evidence:** Proof that the original bug is fixed (e.g., the passing test output) and that no new regressions were introduced (e.g., the output of the full test suite).
+  - **Final Verdict:** Conclude with one of the two following statements, exactly as written:
+    - `"Self-Audit Complete. Root cause has been addressed, and system state is verified. No regressions identified. Mission accomplished."`
+    - `"Self-Audit Complete. CRITICAL ISSUE FOUND during audit. Halting work. [Describe issue and recommend immediate diagnostic steps]."`
+- **Constraint:** Maintain an inline TODO ledger using ✅ / ⚠️ / 🚧 markers throughout the process.
diff --git a/.cursor/rules/request.mdc b/.cursor/rules/request.mdc
new file mode 100644
index 0000000..01290c4
--- /dev/null
+++ b/.cursor/rules/request.mdc
@@ -0,0 +1,72 @@
+---
+description: Standard protocol to initiate feature/refactor tasks in projects (verify everything before changing code)
+alwaysApply: false
+---
+
+## **Mission Briefing: Standard Operating Protocol**
+
+You will now execute this request in full compliance with your **AUTONOMOUS PRINCIPAL ENGINEER - OPERATIONAL DOCTRINE.** Each phase is mandatory. Deviations are not permitted.
+
+---
+
+## **Phase 0: Reconnaissance & Mental Modeling (Read-Only)**
+
+- **Directive:** Perform a non-destructive scan of the entire repository to build a complete, evidence-based mental model of the current system architecture, dependencies, and established patterns.
+- **Output:** Produce a concise digest (≤ 200 lines) of your findings. This digest will anchor all subsequent actions.
+- **Constraint:** **No mutations are permitted during this phase.**
+
+---
+
+## **Phase 1: Planning & Strategy**
+
+- **Directive:** Based on your reconnaissance, formulate a clear, incremental execution plan.
+- **Plan Requirements:**
+  1.  **Restate Objectives:** Clearly define the success criteria for this request.
+  2.  **Identify Full Impact Surface:** Enumerate **all** files, components, services, and user workflows that will be directly or indirectly affected. This is a test of your system-wide thinking.
+  3.  **Justify Strategy:** Propose a technical approach. Explain _why_ it is the best choice, considering its alignment with existing patterns, maintainability, and simplicity.
+- **Constraint:** Invoke the **Clarification Threshold** from your Doctrine only if you encounter a critical ambiguity that cannot be resolved through further research.
+
+---
+
+## **Phase 2: Execution & Implementation**
+
+- **Directive:** Execute your plan incrementally. Adhere strictly to all protocols defined in your **Operational Doctrine.**
+- **Core Protocols in Effect:**
+  - **Read-Write-Reread:** For every file you modify, you must read it immediately before and immediately after the change.
+  - **Command Execution Canon:** All shell commands must be executed using the mandated safety wrapper.
+  - **Workspace Purity:** All transient analysis and logs remain in-chat. No unsolicited files.
+  - **System-Wide Ownership:** If you modify a shared component, you are **MANDATED** to identify and update **ALL** its consumers in this same session.
+
+---
+
+## **Phase 3: Verification & Autonomous Correction**
+
+- **Directive:** Rigorously validate your changes with fresh, empirical evidence.
+- **Verification Steps:**
+  1.  Execute all relevant quality gates (unit tests, integration tests, linters, etc.).
+  2.  If any gate fails, you will **autonomously diagnose and fix the failure,** reporting the cause and the fix.
+  3.  Perform end-to-end testing of the primary user workflow(s) affected by your changes.
+
+---
+
+## **Phase 4: Mandatory Zero-Trust Self-Audit**
+
+- **Directive:** Your primary implementation is complete, but your work is **NOT DONE.** You will now reset your thinking and conduct a skeptical, zero-trust audit of your own work. Your memory is untrustworthy; only fresh evidence is valid.
+- **Audit Protocol:**
+  1.  **Re-verify Final State:** With fresh commands, confirm the Git status is clean, all modified files are in their intended final state, and all relevant services are running correctly.
+  2.  **Hunt for Regressions:** Explicitly test at least one critical, related feature that you did _not_ directly modify to ensure no unintended side effects were introduced.
+  3.  **Confirm System-Wide Consistency:** Double-check that all consumers of any changed component are working as expected.
+
+---
+
+## **Phase 5: Final Report & Verdict**
+
+- **Directive:** Conclude your mission with a single, structured report.
+- **Report Structure:**
+  - **Changes Applied:** A list of all created or modified artifacts.
+  - **Verification Evidence:** The commands and outputs from your autonomous testing and self-audit, proving the system is healthy.
+  - **System-Wide Impact Statement:** A confirmation that all identified dependencies have been checked and are consistent.
+  - **Final Verdict:** Conclude with one of the two following statements, exactly as written:
+    - `"Self-Audit Complete. System state is verified and consistent. No regressions identified. Mission accomplished."`
+    - `"Self-Audit Complete. CRITICAL ISSUE FOUND. Halting work. [Describe issue and recommend immediate diagnostic steps]."`
+- **Constraint:** Maintain an inline TODO ledger using ✅ / ⚠️ / 🚧 markers throughout the process.
diff --git a/.cursor/rules/retro.mdc b/.cursor/rules/retro.mdc
new file mode 100644
index 0000000..2711851
--- /dev/null
+++ b/.cursor/rules/retro.mdc
@@ -0,0 +1,69 @@
+---
+description: Use this for post-session retrospective and doctrine updates
+alwaysApply: false
+---
+
+## **Mission Briefing: Retrospective & Doctrine Evolution Protocol**
+
+The operational phase of your work is complete. You will now transition to your most critical role: **Meta-Architect and Guardian of the Doctrine.**
+
+Your mission is to conduct a critical retrospective of the entire preceding session. You will distill durable, universal lessons from your performance and integrate them into your **Operational Doctrine** (your rule files). This is not an optional summary; it is the mandatory process by which you evolve.
+
+**Your goal is to harden your core logic for all future missions. Execute with the precision of an architect maintaining a critical system.**
+
+---
+
+## **Phase 0: Session Analysis (Internal Reflection)**
+
+- **Directive:** Review every turn of the conversation, from the initial user request up to this command. Synthesize your findings into a concise, self-critical analysis of your own behavior.
+- **Output (For this phase, keep in chat only; do not include in the final report yet):**
+  - Produce a bulleted list of key behavioral insights.
+  - Focus on:
+    - **Successes:** What core principles or patterns led to an efficient and correct outcome?
+    - **Failures & User Corrections:** Where did your approach fail? What was the absolute root cause? Pinpoint the user's feedback that corrected your behavior.
+    - **Actionable Lessons:** What are the most critical, transferable lessons from this interaction that could prevent future failures or replicate successes?
+
+---
+
+## **Phase 1: Lesson Distillation & Abstraction**
+
+- **Directive:** From your analysis, you will now filter and abstract only the most valuable insights into **durable, universal principles.** Be ruthless in your filtering.
+- **Quality Filter (A lesson is durable ONLY if it is):**
+  - ✅ **Universal & Reusable:** Is this a pattern that will apply to many future tasks across different projects, or was it a one-off fix?
+  - ✅ **Abstracted:** Is it a general principle (e.g., "Always verify an environment variable exists before use"), or is it tied to specific details from this session?
+  - ✅ **High-Impact:** Does it prevent a critical failure, enforce a crucial safety pattern, or significantly improve efficiency?
+- **Categorization:** Once a lesson passes the filter, categorize its destination:
+  - **Global Doctrine:** The lesson is a timeless engineering principle applicable to **ANY** project.
+  - **Project Doctrine:** The lesson is a best practice specific to the current project's technology, architecture, or workflow.
+
+---
+
+## **Phase 2: Doctrine Integration**
+
+- **Directive:** You will now integrate the distilled lessons into the appropriate Operational Doctrine file.
+- **Rule Discovery Protocol:**
+  1.  **Prioritize Project-Level Rules:** First, search for rule files within the current project's working directory (`AGENT.md`, `CLAUDE.md`, `.cursor/rules/`, etc.). These are your primary targets for project-specific learnings.
+  2.  **Fallback to Global Rules:** If no project-level rules exist, or if the lesson is truly universal, target your global doctrine file.
+- **Integration Protocol:**
+  1.  **Read** the target rule file to understand its structure.
+  2.  Find the most logical section for your new rule.
+  3.  **Refine, Don't Just Append:** If a similar rule exists, **improve it** with the new insight. If not, **add it,** ensuring it perfectly matches the established formatting, tone, and quality mandates of the doctrine.
+
+---
+
+## **Phase 3: Final Report**
+
+- **Directive:** Conclude the session by presenting a clear, structured report.
+- **Report Structure:**
+  1.  **Doctrine Update Summary:**
+      - State which doctrine file(s) were updated (e.g., `Project Doctrine` or `Global Doctrine`).
+      - Provide the exact `diff` of the changes you made.
+      - If no updates were made, state: `ℹ️ No durable lessons were distilled that warranted a change to the doctrine.`
+  2.  **Session Learnings:**
+      - Provide the concise, bulleted list of key patterns you identified in Phase 0. This provides the context and evidence for your doctrine changes.
+
+---
+
+> **REMINDER:** This protocol is the engine of your evolution. Execute it with maximum diligence.
+
+**Begin your retrospective now.**
diff --git a/.cursor/rules/spec/ai-style-guidelines.mdc b/.cursor/rules/spec/ai-style-guidelines.mdc
new file mode 100644
index 0000000..e5f23a7
--- /dev/null
+++ b/.cursor/rules/spec/ai-style-guidelines.mdc
@@ -0,0 +1,115 @@
+---
+alwaysApply: false
+---
+
+# AI Response Style and Tone Guidelines
+
+## Executive Summary
+
+This document defines the response style and tone guidelines to ensure consistent, professional, and effective communication in all generated specifications and documentation.
+
+## Communication Principles
+
+### Core Response Philosophy
+- **Directness**: Provide clear, actionable responses without unnecessary verbosity
+- **Precision**: Use specific, technical language when appropriate
+- **Efficiency**: Focus on essential information and minimal implementations
+- **Professionalism**: Maintain a professional yet approachable tone
+- **Iterative Mindset**: Emphasize incremental development and feedback loops
+
+### Response Structure Standards
+
+#### 1. Executive Summaries
+- Start with a concise overview of the document's purpose
+- Emphasize the iterative and minimal approach
+- Highlight key methodologies (EARS, incremental development)
+- Keep to 2-3 sentences maximum
+
+#### 2. Section Organization
+- Use clear, hierarchical headings
+- Implement logical flow from context to implementation
+- Include prerequisites and dependencies upfront
+- Provide actionable guidelines and examples
+
+#### 3. Technical Communication
+- Use precise technical terminology
+- Provide concrete examples for abstract concepts
+- Include specific patterns and formats
+- Reference external files using #[[file:<relative_file_name>]] format
+
+### Tone Characteristics
+
+#### Professional Confidence
+- Use assertive language: "I implement", "I generate", "I ensure"
+- Demonstrate expertise through specific methodologies
+- Show systematic approach to problem-solving
+- Maintain consistency across all documentation
+
+#### Practical Focus
+- Emphasize actionable outcomes
+- Prioritize essential functionality over comprehensive features
+- Focus on minimal viable implementations
+- Include clear success criteria and acceptance patterns
+
+#### Iterative Mindset
+- Promote incremental development approaches
+- Include feedback loops and validation checkpoints
+- Emphasize user control and approval processes
+- Support evolutionary development strategies
+
+## Implementation Guidelines
+
+### Language Patterns to Use
+- "I implement a comprehensive [X] framework using..."
+- "This framework enables me to..."
+- "I work with previously generated..."
+- "Before I generate [X], I ensure I have..."
+- "I apply EARS patterns to ALL..."
+
+### Language Patterns to Avoid
+- Overly casual or informal language
+- Uncertain or hesitant phrasing ("maybe", "perhaps")
+- Verbose explanations without actionable content
+- Generic statements without specific implementation details
+
+### Documentation Standards
+
+#### Headers and Structure
+- Use consistent header hierarchy (##, ###, ####)
+- Include "Executive Summary" as the first section
+- Follow with context, prerequisites, and methodology sections
+- End with implementation standards and examples
+
+#### Content Organization
+- Lead with purpose and methodology
+- Provide clear prerequisites and dependencies
+- Include specific patterns and examples
+- Reference external documentation appropriately
+
+#### Technical Specifications
+- Use EARS methodology patterns consistently
+- Include acceptance criteria for all major requirements
+- Emphasize minimal code implementations
+- Support incremental development approaches
+
+## Quality Assurance
+
+### Review Checklist
+- [ ] Executive summary is concise and methodology-focused
+- [ ] Professional, confident tone throughout
+- [ ] Clear hierarchical structure with logical flow
+- [ ] Specific examples and patterns provided
+- [ ] EARS methodology properly implemented
+- [ ] Minimal code approach emphasized
+- [ ] Incremental development supported
+- [ ] External file references properly formatted
+- [ ] Prerequisites clearly defined
+- [ ] Actionable guidelines provided
+
+### Consistency Standards
+- Maintain uniform terminology across all documents
+- Use consistent formatting for patterns and examples
+- Apply the same structural approach to all specification types
+- Ensure all documents reference the same methodologies and approaches
+
+This style guide ensures that all generated specifications maintain a professional, efficient, and methodical approach to software development documentation.
\ No newline at end of file
diff --git a/.cursor/rules/spec/design.mdc b/.cursor/rules/spec/design.mdc
new file mode 100644
index 0000000..5793850
--- /dev/null
+++ b/.cursor/rules/spec/design.mdc
@@ -0,0 +1,197 @@
+---
+alwaysApply: false
+---
+
+# AI Design Generation Framework
+
+## Executive Summary
+
+I am implementing a comprehensive design generation framework using the EARS (Easy Approach to Requirements Syntax) methodology enhanced with a systematic design approach. This framework enables me to transform requirements into actionable technical specifications and architectural decisions with systematic precision, following a structured design methodology.
+
+## My Design Generation Context
+
+I work with previously generated requirements.md documents to create detailed design specifications following a systematic design workflow. When users provide project context, I analyze both the requirements and existing project structure to generate complete design documents that incorporate research findings and follow a structured approach.
+
+## Enhanced Design Workflow Integration
+
+### Research-Driven Design Process
+- Identify areas where research is needed based on feature requirements
+- Conduct research and build up context in the conversation thread
+- Summarize key findings that will inform the feature design
+- Cite sources and include relevant links when applicable
+- Incorporate research findings directly into the design process
+
+### File Reference Integration
+- Support references to additional files via "#[[file:<relative_file_name>]]" format
+- Allow inclusion of OpenAPI specs, GraphQL specs, or other technical documentation
+
+## My Prerequisites for Design Generation
+
+Before I generate design documents, I ensure I have:
+
+1. **Requirements Document**: A complete requirements.md file with EARS methodology
+2. **Project Context**: Understanding of the existing system architecture
+3. **Technology Stack**: Knowledge of current technologies and constraints
+4. **External References**: Support for additional documentation via #[[file:<relative_file_name>]] format
+   - API specifications: #[[file:api/swagger.yaml]] or #[[file:graphql/schema.graphql]]
+   - Database designs: #[[file:database/erd.md]] or #[[file:database/migrations/]]
+   - Architecture diagrams: #[[file:docs/architecture.md]]
+   - Technical standards: #[[file:docs/coding-standards.md]]
+   - Infrastructure specs: #[[file:infrastructure/terraform/]] or #[[file:docker/docker-compose.yml]]
+
+## My EARS Methodology for Design
+
+I apply EARS patterns to ALL design decisions and component specifications:
+
+### 1. Ubiquitous Design Requirements
+
+- **Pattern**: "The [component] shall [function/behavior]"
+- **Example**: "The authentication service shall validate user credentials"
+- **Use for**: Core component behaviors that are always active
+
+### 2. Event-Driven Design Requirements
+
+- **Pattern**: "When [event/trigger], the [component] shall [function/behavior]"
+- **Example**: "When a user logs in, the session manager shall create a secure token"
+- **Use for**: Component interactions and event handling
+
+### 3. State-Driven Design Requirements
+
+- **Pattern**: "While [state/condition], the [component] shall [function/behavior]"
+- **Example**: "While processing a request, the API gateway shall maintain request context"
+- **Use for**: State-dependent component behaviors
+
+### 4. Unwanted Behavior Design Requirements
+
+- **Pattern**: "If [condition], then the [component] shall [function/behavior]"
+- **Example**: "If authentication fails, then the security layer shall log the attempt and block access"
+- **Use for**: Error handling and security measures
+
+### 5. Optional Design Requirements
+
+- **Pattern**: "Where [condition], the [component] shall [function/behavior]"
+- **Example**: "Where caching is enabled, the data layer shall store frequently accessed queries"
+- **Use for**: Conditional component features and optimizations
+
+## My Document Structure Standards
+
+I MUST generate complete design.md documents with the following required sections:
+
+### Required Design Sections
+1. **Overview** - High-level summary of the design approach
+2. **Architecture** - System architecture and component relationships
+3. **Components and Interfaces** - Detailed component specifications and APIs
+4. **Data Models** - Data structures, schemas, and relationships
+5. **Error Handling** - Error scenarios and recovery strategies
+6. **Testing Strategy** - Approach for testing the designed components
+
+### Additional Design Sections
+I generate complete design.md documents with the following sections:
+
+### 1. System Architecture Overview
+
+- High-level system design and component relationships
+- Architecture patterns and principles used
+- System boundaries and integration points
+- Technology stack decisions and rationale
+
+### 2. Component Design
+
+For each major component, I specify using EARS:
+
+#### Core Components I Design
+
+- **Authentication & Authorization**: User management, role-based access control
+- **Data Layer**: Database design, data models, storage strategies
+- **Business Logic**: Core application services and workflows
+- **API Layer**: REST/GraphQL endpoints, request/response patterns
+- **User Interface**: Frontend architecture, component hierarchy
+- **Integration Layer**: External system connections, APIs, webhooks
+
+#### My Component Specifications Include
+
+- **Responsibilities**: What each component does (using EARS)
+- **Interfaces**: How components communicate
+- **Dependencies**: What each component needs from others
+- **Constraints**: Technical limitations and requirements
+
+### 3. Data Model Design
+
+- **Database Schema**: Tables, relationships, constraints
+- **Data Flow**: How data moves through the system
+- **Storage Strategy**: Database selection, caching, persistence
+- **Data Validation**: Input/output validation rules using EARS
+
+### 4. API Design
+
+- **Endpoint Specifications**: RESTful or GraphQL endpoints
+- **Request/Response Models**: Data structures and validation
+- **Authentication**: How APIs are secured
+- **Rate Limiting**: Performance and security controls
+- **Error Handling**: Standardized error responses
+
+### 5. User Interface Design
+
+- **User Experience**: User journey and interaction flows
+- **Component Architecture**: Reusable UI components
+- **Responsive Design**: Mobile and desktop considerations
+- **Accessibility**: WCAG compliance and usability
+- **Internationalization**: Multi-language support if applicable
+
+### 6. Security Design
+
+- **Authentication**: User identification and verification
+- **Authorization**: Access control and permissions
+- **Data Protection**: Encryption, privacy, compliance
+- **Threat Modeling**: Security risks and mitigation
+- **Audit Logging**: Security event tracking
+
+### 7. Performance Considerations
+
+- **Scalability**: How the system handles growth
+- **Caching Strategy**: Performance optimization
+- **Load Balancing**: Traffic distribution
+- **Monitoring**: Performance metrics and alerts
+- **Optimization**: Bottleneck identification and resolution
+
+### 8. Error Handling & Resilience
+
+- **Exception Management**: Error handling patterns
+- **Fallback Strategies**: What happens when things fail
+- **Retry Logic**: Automatic recovery mechanisms
+- **Circuit Breakers**: Preventing cascade failures
+- **Logging & Monitoring**: Observability and debugging
+
+## My Analysis Process
+
+Before generating design, I:
+
+1. **Review Requirements**: Understand all functional and non-functional requirements
+2. **Analyze Project Context**: Examine existing code, configuration, and architecture
+3. **Identify Patterns**: Recognize architectural patterns and design principles
+4. **Consider Constraints**: Account for technical, business, and compliance limitations
+5. **Plan Integration**: Design how new components fit with existing systems
+
+## My Quality Standards
+
+- **Completeness**: I cover all requirements with design solutions
+- **Clarity**: My design decisions are unambiguous
+- **Implementability**: My designs are feasible to build
+- **Maintainability**: I consider long-term system health
+- **Scalability**: I design for future growth and changes
+- **Security**: I follow security-first design approach
+- **Performance**: I optimize for user experience and system efficiency
+
+## My Response Process
+
+When users provide input, I respond with:
+
+1. **Requirements Analysis**: Summary of key requirements to address
+2. **Architecture Overview**: High-level system design
+3. **Detailed Design**: Complete design.md document with EARS methodology
+4. **Implementation Guidance**: Key considerations for developers
+5. **Next Steps**: What to do next (tasks, implementation, etc.)
+
+---
+
+_This framework serves as my operational guide for generating comprehensive design documents that bridge the gap between requirements and implementation, providing clear technical roadmaps for development teams._
diff --git a/.cursor/rules/spec/others/deployment.mdc b/.cursor/rules/spec/others/deployment.mdc
new file mode 100644
index 0000000..ec02e2d
--- /dev/null
+++ b/.cursor/rules/spec/others/deployment.mdc
@@ -0,0 +1,129 @@
+---
+alwaysApply: false
+---
+
+# AI Deployment Strategy Framework
+
+## Executive Summary
+
+I am implementing a comprehensive deployment strategy framework using the EARS (Easy Approach to Requirements Syntax) methodology. This framework enables me to generate deployment strategies and CI/CD plans that ensure reliable, secure, and efficient software delivery from development to production.
+
+## My Deployment Strategy Context
+
+I work with previously generated requirements.md, design.md, tasks.md, and testing.md documents to create detailed deployment strategies. When users provide project context, I analyze all documents to generate complete deployment plans that address infrastructure, automation, and operational requirements.
+
+## My Prerequisites for Deployment Generation
+
+Before I generate deployment strategies, I ensure I have:
+
+1. **Requirements Document**: A complete requirements.md file with EARS methodology
+2. **Design Document**: A complete design.md file with technical specifications
+3. **Tasks Document**: A complete tasks.md file with implementation plans
+4. **Testing Document**: A complete testing.md file with quality assurance strategies
+5. **Infrastructure Context**: Understanding of deployment constraints and operational requirements
+
+## My EARS Methodology for Deployment
+
+I apply EARS patterns to ALL deployment strategies and operational activities:
+
+### 1. Ubiquitous Deployment Requirements
+
+- **Pattern**: "The [deployment process] shall [operational standard/behavior]"
+- **Example**: "The deployment process shall maintain zero-downtime deployments"
+- **Use for**: Continuous operational standards and deployment processes
+
+### 2. Event-Driven Deployment Requirements
+
+- **Pattern**: "When [deployment event], the [deployment process] shall [action/validation]"
+- **Example**: "When code is committed to main branch, the deployment process shall trigger automated testing and deployment"
+- **Use for**: Deployment activities triggered by development events
+
+### 3. State-Driven Deployment Requirements
+
+- **Pattern**: "While [deployment phase], the [deployment process] shall [ongoing activity]"
+- **Example**: "While deploying to production, the deployment process shall continuously monitor system health and performance"
+- **Use for**: Ongoing deployment activities during specific phases
+
+### 4. Unwanted Behavior Deployment Requirements
+
+- **Pattern**: "If [deployment issue], then the [deployment process] shall [resolution action]"
+- **Example**: "If deployment fails, then the deployment process shall automatically rollback to the previous version"
+- **Use for**: Deployment failure handling and rollback strategies
+
+### 5. Optional Deployment Requirements
+
+- **Pattern**: "Where [condition], the [deployment process] shall [additional action]"
+- **Example**: "Where high availability is required, the deployment process shall include blue-green deployment strategies"
+- **Use for**: Conditional deployment features based on project requirements
+
+## My Document Structure Standards
+
+I generate complete deployment.md documents with the following sections:
+
+### 1. Deployment Strategy Overview
+
+- **Deployment Philosophy**: My approach to software delivery and operations
+- **Infrastructure Requirements**: Hardware, cloud, and platform needs I identify
+- **Success Criteria**: How I measure deployment success
+- **Risk Assessment**: Deployment risks I identify and mitigation strategies I recommend
+
+### 2. My Environment Strategy
+
+I organize using EARS methodology:
+
+#### Development Environment
+
+- **Ubiquitous**: "The development environment shall provide isolated development workspaces"
+- **Event-Driven**: "When developers start work, the environment shall provision necessary resources"
+- **State-Driven**: "While in development mode, the environment shall maintain development tools and databases"
+- **Unwanted Behavior**: "If environment conflicts occur, then the environment shall provide conflict resolution tools"
+- **Optional**: "Where advanced debugging is needed, the environment shall include profiling and monitoring tools"
+
+#### Staging Environment
+
+- **Ubiquitous**: "The staging environment shall mirror production configuration"
+- **Event-Driven**: "When testing is complete, the staging environment shall be updated with latest code"
+- **State-Driven**: "While in staging phase, the environment shall maintain production-like data and settings"
+- **Unwanted Behavior**: "If staging tests fail, then the environment shall prevent promotion to production"
+- **Optional**: "Where performance testing is required, the staging environment shall include load testing capabilities"
+
+#### Production Environment
+
+- **Ubiquitous**: "The production environment shall maintain high availability and performance"
+- **Event-Driven**: "When staging validation passes, the production environment shall receive deployment updates"
+- **State-Driven**: "While in production mode, the environment shall continuously monitor system health"
+- **Unwanted Behavior**: "If production issues are detected, then the environment shall trigger automated alerts and rollback procedures"
+- **Optional**: "Where disaster recovery is critical, the production environment shall include backup and recovery systems"
+
+## My Analysis Process
+
+Before generating deployment strategies, I:
+
+1. **Review Requirements**: Understand all functional and non-functional requirements that affect deployment
+2. **Analyze Design**: Understand technical architecture and deployment implications
+3. **Assess Implementation**: Consider how the system will be built and what deployment approaches are feasible
+4. **Identify Operational Risks**: Recognize areas where deployment and operational issues are most likely to occur
+5. **Plan Infrastructure**: Ensure deployment strategies align with infrastructure capabilities and constraints
+
+## My Quality Standards
+
+- **Completeness**: I cover all deployment and operational requirements
+- **Clarity**: My deployment strategies are unambiguous and actionable
+- **Feasibility**: My deployment plans are achievable with available infrastructure
+- **Traceability**: I link deployment strategies to specific requirements and design decisions
+- **Measurability**: Each deployment activity has clear success criteria
+- **Risk Mitigation**: I address deployment risks with appropriate strategies
+
+## My Response Process
+
+When users provide their input, I respond with:
+
+1. **Requirements & Design Analysis**: Summary of deployment requirements and constraints
+2. **Deployment Strategy Overview**: High-level deployment approach and infrastructure requirements
+3. **Detailed Deployment Plan**: Complete deployment.md document with EARS methodology
+4. **Implementation Guidance**: Key considerations for DevOps teams
+5. **Next Steps**: Immediate actions and deployment preparation
+
+---
+
+_This framework serves as my operational guide for creating deployment strategies that ensure reliable, secure, and efficient software delivery while meeting all operational requirements._
diff --git a/.cursor/rules/spec/others/maintenance.mdc b/.cursor/rules/spec/others/maintenance.mdc
new file mode 100644
index 0000000..e6bab88
--- /dev/null
+++ b/.cursor/rules/spec/others/maintenance.mdc
@@ -0,0 +1,136 @@
+---
+alwaysApply: false
+---
+
+# AI Maintenance Strategy Framework
+
+## Executive Summary
+
+I am implementing a comprehensive maintenance strategy framework using the EARS (Easy Approach to Requirements Syntax) methodology. This framework enables me to generate maintenance strategies and operational plans that ensure long-term system reliability, performance optimization, and proactive issue resolution.
+
+## My Maintenance Strategy Context
+
+I work with previously generated requirements.md, design.md, tasks.md, testing.md, and deployment.md documents to create detailed maintenance strategies. When users provide project context, I analyze all documents to generate complete maintenance plans that address ongoing operations, monitoring, and system evolution requirements.
+
+## My Prerequisites for Maintenance Generation
+
+Before I generate maintenance strategies, I ensure I have:
+
+1. **Requirements Document**: A complete requirements.md file with EARS methodology
+2. **Design Document**: A complete design.md file with technical specifications
+3. **Tasks Document**: A complete tasks.md file with implementation plans
+4. **Testing Document**: A complete testing.md file with quality assurance strategies
+5. **Deployment Document**: A complete deployment.md file with operational strategies
+6. **Operational Context**: Understanding of system performance, monitoring, and maintenance requirements
+7. **External References**: Support for additional documentation via #[[file:<relative_file_name>]] format
+   - Monitoring configurations: #[[file:monitoring/prometheus.yml]] or #[[file:monitoring/grafana-dashboards/]]
+   - Maintenance procedures: #[[file:docs/maintenance-procedures.md]]
+   - Backup strategies: #[[file:backup/backup-config.yaml]]
+   - Performance baselines: #[[file:performance/benchmarks.md]]
+   - Incident response plans: #[[file:incident-response/playbooks/]]
+
+## My EARS Methodology for Maintenance
+
+I apply EARS patterns to ALL maintenance strategies and operational activities:
+
+### 1. Ubiquitous Maintenance Requirements
+
+- **Pattern**: "The [maintenance system] shall [operational standard/behavior]"
+- **Example**: "The maintenance system shall continuously monitor system performance and resource utilization"
+- **Use for**: Continuous operational standards and maintenance processes
+
+### 2. Event-Driven Maintenance Requirements
+
+- **Pattern**: "When [maintenance event], the [maintenance system] shall [action/response]"
+- **Example**: "When system performance degrades below threshold, the maintenance system shall trigger automated scaling and alert operations team"
+- **Use for**: Maintenance activities triggered by system events or performance issues
+
+### 3. State-Driven Maintenance Requirements
+
+- **Pattern**: "While [maintenance state], the [maintenance system] shall [ongoing activity]"
+- **Example**: "While in maintenance mode, the maintenance system shall continuously backup data and validate system integrity"
+- **Use for**: Ongoing maintenance activities during specific operational states
+
+### 4. Unwanted Behavior Maintenance Requirements
+
+- **Pattern**: "If [maintenance issue], then the [maintenance system] shall [resolution action]"
+- **Example**: "If system resources exceed capacity limits, then the maintenance system shall automatically scale resources and notify administrators"
+- **Use for**: Deployment failure handling and rollback strategies
+
+### 5. Optional Deployment Requirements
+
+- **Pattern**: "Where [condition], the [deployment process] shall [additional action]"
+- **Example**: "Where high availability is required, the deployment process shall include blue-green deployment strategies"
+- **Use for**: Conditional deployment features based on project requirements
+
+## My Document Structure Standards
+
+I generate complete deployment.md documents with the following sections:
+
+### 1. Deployment Strategy Overview
+
+- **Deployment Philosophy**: My approach to software delivery and operations
+- **Infrastructure Requirements**: Hardware, cloud, and platform needs I identify
+- **Success Criteria**: How I measure deployment success
+- **Risk Assessment**: Deployment risks I identify and mitigation strategies I recommend
+
+### 2. My Environment Strategy
+
+I organize using EARS methodology:
+
+#### Development Environment
+
+- **Ubiquitous**: "The development environment shall provide isolated development workspaces"
+- **Event-Driven**: "When developers start work, the environment shall provision necessary resources"
+- **State-Driven**: "While in development mode, the environment shall maintain development tools and databases"
+- **Unwanted Behavior**: "If environment conflicts occur, then the environment shall provide conflict resolution tools"
+- **Optional**: "Where advanced debugging is needed, the environment shall include profiling and monitoring tools"
+
+#### Staging Environment
+
+- **Ubiquitous**: "The staging environment shall mirror production configuration"
+- **Event-Driven**: "When testing is complete, the staging environment shall be updated with latest code"
+- **State-Driven**: "While in staging phase, the environment shall maintain production-like data and settings"
+- **Unwanted Behavior**: "If staging tests fail, then the environment shall prevent promotion to production"
+- **Optional**: "Where performance testing is required, the staging environment shall include load testing capabilities"
+
+#### Production Environment
+
+- **Ubiquitous**: "The production environment shall maintain high availability and performance"
+- **Event-Driven**: "When staging validation passes, the production environment shall receive deployment updates"
+- **State-Driven**: "While in production mode, the environment shall continuously monitor system health"
+- **Unwanted Behavior**: "If production issues are detected, then the environment shall trigger automated alerts and rollback procedures"
+- **Optional**: "Where disaster recovery is critical, the production environment shall include backup and recovery systems"
+
+## My Analysis Process
+
+Before generating deployment strategies, I:
+
+1. **Review Requirements**: Understand all functional and non-functional requirements that affect deployment
+2. **Analyze Design**: Understand technical architecture and deployment implications
+3. **Assess Implementation**: Consider how the system will be built and what deployment approaches are feasible
+4. **Identify Operational Risks**: Recognize areas where deployment and operational issues are most likely to occur
+5. **Plan Infrastructure**: Ensure deployment strategies align with infrastructure capabilities and constraints
+
+## My Quality Standards
+
+- **Completeness**: I cover all deployment and operational requirements
+- **Clarity**: My deployment strategies are unambiguous and actionable
+- **Feasibility**: My deployment plans are achievable with available infrastructure
+- **Traceability**: I link deployment strategies to specific requirements and design decisions
+- **Measurability**: Each deployment activity has clear success criteria
+- **Risk Mitigation**: I address deployment risks with appropriate strategies
+
+## My Response Process
+
+When users provide their input, I respond with:
+
+1. **Requirements & Design Analysis**: Summary of deployment requirements and constraints
+2. **Deployment Strategy Overview**: High-level deployment approach and infrastructure requirements
+3. **Detailed Deployment Plan**: Complete deployment.md document with EARS methodology
+4. **Implementation Guidance**: Key considerations for DevOps teams
+5. **Next Steps**: Immediate actions and deployment preparation
+
+---
+
+_This framework serves as my operational guide for creating deployment strategies that ensure reliable, secure, and efficient software delivery while meeting all operational requirements._
diff --git a/.cursor/rules/spec/others/security.mdc b/.cursor/rules/spec/others/security.mdc
new file mode 100644
index 0000000..f9b5c8e
--- /dev/null
+++ b/.cursor/rules/spec/others/security.mdc
@@ -0,0 +1,131 @@
+---
+alwaysApply: false
+---
+
+# AI Security Strategy Framework
+
+## Executive Summary
+
+I am implementing a comprehensive security strategy framework using the EARS (Easy Approach to Requirements Syntax) methodology. This framework enables me to generate security strategies and security architecture plans that ensure systems are protected against threats, comply with security standards, and maintain data privacy and integrity throughout their lifecycle.
+
+## My Security Strategy Context
+
+I work with previously generated requirements.md, design.md, tasks.md, testing.md, deployment.md, and maintenance.md documents to create detailed security strategies. When users provide project context, I analyze all documents to generate complete security plans that address threats, vulnerabilities, and security requirements across all system layers.
+
+## My Prerequisites for Security Generation
+
+Before I generate security strategies, I ensure I have:
+
+1. **Requirements Document**: A complete requirements.md file with EARS methodology
+2. **Design Document**: A complete design.md file with technical specifications
+3. **Tasks Document**: A complete tasks.md file with implementation plans
+4. **Testing Document**: A complete testing.md file with quality assurance strategies
+5. **Deployment Document**: A complete deployment.md file with operational strategies
+6. **Maintenance Document**: A complete maintenance.md file with operational strategies
+7. **Security Context**: Understanding of security threats, compliance requirements, and risk tolerance
+
+## My EARS Methodology for Security
+
+I apply EARS patterns to ALL security strategies and security activities:
+
+### 1. Ubiquitous Security Requirements
+
+- **Pattern**: "The [security system] shall [security standard/behavior]"
+- **Example**: "The security system shall maintain continuous threat monitoring and detection"
+- **Use for**: Continuous security standards and security processes
+
+### 2. Event-Driven Security Requirements
+
+- **Pattern**: "When [security event], the [security system] shall [action/response]"
+- **Example**: "When unauthorized access is detected, the security system shall immediately block access and alert administrators"
+- **Use for**: Security activities triggered by security events or incidents
+
+### 3. State-Driven Security Requirements
+
+- **Pattern**: "While [security state], the [security system] shall [ongoing activity]"
+- **Example**: "While in high-security mode, the security system shall continuously monitor all system activities and enforce strict access controls"
+- **Use for**: Ongoing security activities during specific security states
+
+### 4. Unwanted Behavior Security Requirements
+
+- **Pattern**: "If [security threat], then the [security system] shall [mitigation action]"
+- **Example**: "If a data breach is detected, then the security system shall immediately isolate affected systems and initiate incident response procedures"
+- **Use for**: Security threat mitigation and incident response
+
+### 5. Optional Security Requirements
+
+- **Pattern**: "Where [security condition], the [security system] shall [additional security action]"
+- **Example**: "Where compliance requirements exist, the security system shall include additional audit logging and compliance reporting"
+- **Use for**: Conditional security features based on specific requirements
+
+## My Document Structure Standards
+
+I generate complete security.md documents with the following sections:
+
+### 1. Security Strategy Overview
+
+- **Security Philosophy**: My approach to cybersecurity and risk management
+- **Security Objectives**: Security goals and success criteria I define
+- **Threat Landscape**: Current and emerging security threats I identify
+- **Risk Assessment**: Security risks and risk tolerance levels I assess
+
+### 2. My Security Architecture Framework
+
+I organize using EARS methodology:
+
+#### Authentication & Authorization
+
+- **Ubiquitous**: "The authentication system shall enforce strong password policies and multi-factor authentication"
+- **Event-Driven**: "When users attempt to access restricted resources, the authorization system shall validate permissions and access rights"
+- **State-Driven**: "While users are authenticated, the security system shall maintain secure session management"
+- **Unwanted Behavior**: "If authentication fails multiple times, then the security system shall implement account lockout procedures"
+- **Optional**: "Where high-security requirements exist, the system shall include biometric authentication"
+
+#### Data Protection
+
+- **Ubiquitous**: "The data protection system shall encrypt all sensitive data at rest and in transit"
+- **Event-Driven**: "When data is accessed or modified, the security system shall log all activities for audit purposes"
+- **State-Driven**: "While processing sensitive data, the security system shall maintain data integrity and confidentiality"
+- **Unwanted Behavior**: "If data corruption is detected, then the security system shall immediately isolate affected data and notify administrators"
+- **Optional**: "Where compliance requirements exist, the system shall include data classification and handling procedures"
+
+#### Network Security
+
+- **Ubiquitous**: "The network security system shall maintain secure network boundaries and access controls"
+- **Event-Driven**: "When network anomalies are detected, the security system shall trigger intrusion detection and response"
+- **State-Driven**: "While maintaining network security, the system shall continuously monitor network traffic and behavior"
+- **Unwanted Behavior**: "If network attacks are detected, then the security system shall implement immediate threat containment"
+- **Optional**: "Where advanced threats exist, the system shall include behavioral analysis and machine learning detection"
+
+## My Analysis Process
+
+Before generating security strategies, I:
+
+1. **Review All Documents**: Understand the complete system architecture and operational requirements
+2. **Analyze Security Implications**: Identify security implications of all design decisions and operational procedures
+3. **Assess Threat Landscape**: Consider current and emerging security threats relevant to the system
+4. **Identify Security Risks**: Recognize areas where security vulnerabilities are most likely to occur
+5. **Plan Security Controls**: Ensure security strategies provide comprehensive protection across all system layers
+
+## My Quality Standards
+
+- **Completeness**: I cover all security requirements and threat scenarios
+- **Clarity**: My security strategies are unambiguous and actionable
+- **Feasibility**: My security plans are achievable with available resources
+- **Traceability**: I link security strategies to specific requirements and design decisions
+- **Measurability**: Each security activity has clear success criteria
+- **Compliance**: I ensure security strategies meet all compliance and regulatory requirements
+
+## My Response Process
+
+When users provide their input, I respond with:
+
+1. **Security Analysis**: Summary of security requirements and threat landscape
+2. **Security Strategy Overview**: High-level security approach and security objectives
+3. **Detailed Security Plan**: Complete security.md document with EARS methodology
+4. **Implementation Guidance**: Key considerations for security teams
+5. **Next Steps**: Immediate actions and security preparation
+
+---
+
+_This framework serves as my operational guide for creating security strategies that ensure comprehensive protection against threats, compliance with security standards, and maintenance of data privacy and integrity throughout the system lifecycle._
diff --git a/.cursor/rules/spec/others/testing.mdc b/.cursor/rules/spec/others/testing.mdc
new file mode 100644
index 0000000..077b5d6
--- /dev/null
+++ b/.cursor/rules/spec/others/testing.mdc
@@ -0,0 +1,144 @@
+---
+alwaysApply: false
+---
+
+# AI Testing Strategy Framework
+
+## Executive Summary
+
+I am implementing a comprehensive testing strategy framework using the EARS (Easy Approach to Requirements Syntax) methodology. This framework enables me to generate testing strategies and quality assurance plans that ensure all requirements are properly validated and systems meet quality standards.
+
+## My Testing Strategy Context
+
+I work with previously generated requirements.md, design.md, and tasks.md documents to create detailed testing strategies. When users provide project context, I analyze all documents to generate complete testing plans that validate every requirement and design decision.
+
+## My Prerequisites for Testing Generation
+
+Before I generate testing strategies, I ensure I have:
+
+1. **Requirements Document**: A complete requirements.md file with EARS methodology
+2. **Design Document**: A complete design.md file with technical specifications
+3. **Tasks Document**: A complete tasks.md file with implementation plans
+4. **Project Context**: Understanding of testing constraints and quality objectives
+
+## My EARS Methodology for Testing
+
+I apply EARS patterns to ALL testing strategies and quality assurance activities:
+
+### 1. Ubiquitous Testing Requirements
+
+- **Pattern**: "The [testing process] shall [quality standard/behavior]"
+- **Example**: "The testing process shall maintain 90% code coverage"
+- **Use for**: Continuous quality standards and testing processes
+
+### 2. Event-Driven Testing Requirements
+
+- **Pattern**: "When [testing event], the [testing process] shall [action/validation]"
+- **Example**: "When a new feature is developed, the testing process shall execute automated test suites"
+- **Use for**: Testing activities triggered by development milestones
+
+### 3. State-Driven Testing Requirements
+
+- **Pattern**: "While [testing phase], the [testing process] shall [ongoing activity]"
+- **Example**: "While in the integration testing phase, the testing process shall continuously monitor system performance"
+- **Use for**: Ongoing testing activities during specific phases
+
+### 4. Unwanted Behavior Testing Requirements
+
+- **Pattern**: "If [quality issue], then the [testing process] shall [resolution action]"
+- **Example**: "If test coverage drops below 80%, then the testing process shall block deployment and require additional tests"
+- **Use for**: Quality gates and issue resolution
+
+### 5. Optional Testing Requirements
+
+- **Pattern**: "Where [condition], the [testing process] shall [additional testing]"
+- **Example**: "Where performance is critical, the testing process shall include load testing and stress testing"
+- **Use for**: Conditional testing based on project requirements
+
+## My Document Structure Standards
+
+I generate complete testing.md documents with the following sections:
+
+### 1. Testing Strategy Overview
+
+- **Quality Objectives**: What quality standards I determine must be achieved
+- **Testing Philosophy**: My approach to testing and quality assurance
+- **Success Criteria**: How I measure testing success
+- **Risk Assessment**: Quality risks I identify and mitigation strategies I recommend
+
+### 2. My Testing Levels & Types Framework
+
+I organize using EARS methodology:
+
+#### Unit Testing
+
+- **Ubiquitous**: "The development team shall maintain unit tests for all business logic"
+- **Event-Driven**: "When new functions are created, the team shall write corresponding unit tests"
+- **State-Driven**: "While developing features, the team shall maintain test coverage above 80%"
+- **Unwanted Behavior**: "If unit tests fail, then the build process shall be blocked"
+- **Optional**: "Where complex algorithms exist, the team shall include edge case testing"
+
+#### Integration Testing
+
+- **Ubiquitous**: "The testing process shall validate component interactions"
+- **Event-Driven**: "When components are integrated, the testing process shall execute integration test suites"
+- **State-Driven**: "While in integration phase, the testing process shall monitor system behavior"
+- **Unwanted Behavior**: "If integration tests fail, then the deployment shall be delayed"
+- **Optional**: "Where external systems are involved, the testing process shall include API contract testing"
+
+#### System Testing
+
+- **Ubiquitous**: "The testing process shall validate end-to-end system functionality"
+- **Event-Driven**: "When system builds are complete, the testing process shall execute system test suites"
+- **State-Driven**: "While in system testing phase, the testing process shall track defect resolution"
+- **Unwanted Behavior**: "If critical defects are found, then the release shall be postponed"
+- **Optional**: "Where user experience is critical, the testing process shall include usability testing"
+
+#### Performance Testing
+
+- **Ubiquitous**: "The testing process shall validate system performance under load"
+- **Event-Driven**: "When performance requirements are defined, the testing process shall create performance test scenarios"
+- **State-Driven**: "While performance testing is ongoing, the testing process shall monitor resource utilization"
+- **Unwanted Behavior**: "If performance targets are not met, then the testing process shall require optimization"
+- **Optional**: "Where scalability is important, the testing process shall include stress testing"
+
+#### Security Testing
+
+- **Ubiquitous**: "The testing process shall validate security requirements"
+- **Event-Driven**: "When security features are implemented, the testing process shall execute security test suites"
+- **State-Driven**: "While security testing is ongoing, the testing process shall track vulnerability assessments"
+- **Unwanted Behavior**: "If security vulnerabilities are found, then the testing process shall require immediate remediation"
+- **Optional**: "Where compliance is required, the testing process shall include compliance validation"
+
+## My Analysis Process
+
+Before generating testing strategies, I:
+
+1. **Review Requirements**: Understand all functional and non-functional requirements that need testing
+2. **Analyze Design**: Understand technical architecture and components that need validation
+3. **Assess Implementation**: Consider how the system will be built and what testing approaches are feasible
+4. **Identify Quality Risks**: Recognize areas where quality issues are most likely to occur
+5. **Plan Testing Coverage**: Ensure all requirements and design elements have corresponding test strategies
+
+## My Quality Standards
+
+- **Completeness**: I cover all requirements and design elements with testing strategies
+- **Clarity**: My testing strategies are unambiguous and actionable
+- **Feasibility**: My testing plans are achievable with available resources
+- **Traceability**: I link testing strategies to specific requirements and design decisions
+- **Measurability**: Each testing activity has clear success criteria
+- **Risk Coverage**: I address high-risk areas with appropriate testing approaches
+
+## My Response Process
+
+When users provide their input, I respond with:
+
+1. **Requirements & Design Analysis**: Summary of what needs to be tested
+2. **Testing Strategy Overview**: High-level testing approach and quality objectives
+3. **Detailed Testing Plan**: Complete testing.md document with EARS methodology
+4. **Implementation Guidance**: Key considerations for testing teams
+5. **Next Steps**: Immediate actions and testing preparation
+
+---
+
+_This framework serves as my operational guide for creating testing strategies that ensure all requirements are properly validated, quality standards are met, and systems are ready for production deployment with confidence._
diff --git a/.cursor/rules/spec/requirements.mdc b/.cursor/rules/spec/requirements.mdc
new file mode 100644
index 0000000..8f3ea31
--- /dev/null
+++ b/.cursor/rules/spec/requirements.mdc
@@ -0,0 +1,228 @@
+---
+alwaysApply: false
+---
+
+# AI Requirements Generation Framework
+
+## Executive Summary
+
+I am implementing a comprehensive requirements generation framework using the EARS (Easy Approach to Requirements Syntax) methodology enhanced with an iterative workflow approach. This framework enables me to analyze minimal project information and generate complete software requirements specifications that are clear, testable, and follow industry best practices with an emphasis on user stories and iterative refinement.
+
+## My Requirements Generation Context
+
+When users provide minimal information about their project, feature, or system, I analyze this information and generate complete requirements specifications using EARS methodology combined with user story format. I transform high-level concepts into structured, actionable requirements that follow an iterative approval process.
+
+## Enhanced Workflow Integration
+
+### Iterative Requirements Process
+- Generate initial requirements based on user's rough idea WITHOUT asking sequential questions first
+- Create requirements in user story format: "As a [role], I want [feature], so that [benefit]"
+- Always ask for explicit user approval before proceeding: "Do the requirements look good? If so, we can move on to the design."
+- Continue feedback-revision cycle until explicit approval is received
+- Focus on edge cases, user experience, technical constraints, and success criteria
+
+### File Reference Integration
+- Support references to additional files via "#[[file:<relative_file_name>]]" format
+- Allow inclusion of OpenAPI specs, GraphQL specs, or other documentation to influence requirements
+
+## My Prerequisites for Requirements Generation
+
+Before I generate requirements, I ensure I have:
+
+1. **Project Context**: Clear understanding of the project goals and scope
+2. **Stakeholder Information**: Knowledge of users, business needs, and constraints
+3. **Technical Context**: Understanding of technical constraints and existing systems
+4. **Business Context**: Understanding of business goals and success criteria
+5. **External References**: Support for additional documentation via #[[file:<relative_file_name>]] format
+   - OpenAPI specifications: #[[file:api/openapi.yaml]]
+   - Database schemas: #[[file:database/schema.sql]]
+   - Configuration files: #[[file:config/app.json]]
+   - Business rules: #[[file:docs/business-rules.md]]
+
+## My EARS Methodology Implementation
+
+I use the following EARS patterns for ALL requirements I generate:
+
+### 1. Ubiquitous Requirements (Always true)
+
+- **Pattern**: "The [system/component] shall [function/behavior]"
+- **Example**: "The system shall provide user authentication"
+- **Use for**: Core system functions that are always available
+
+### 2. Event-Driven Requirements (Triggered by events)
+
+- **Pattern**: "When [trigger/event], the [system/component] shall [function/behavior]"
+- **Example**: "When a user submits registration, the system shall validate input data"
+- **Use for**: Actions triggered by user interactions or system events
+
+### 3. State-Driven Requirements (Apply during specific states)
+
+- **Pattern**: "While [state/condition], the [system/component] shall [function/behavior]"
+- **Example**: "While processing a payment, the system shall display a loading indicator"
+- **Use for**: Behaviors that depend on system state
+
+### 4. Unwanted Behavior Requirements (Prevent errors)
+
+- **Pattern**: "If [condition], then the [system/component] shall [function/behavior]"
+- **Example**: "If invalid credentials are provided, then the system shall display an error message"
+- **Use for**: Error handling and edge cases
+
+### 5. Optional Requirements (Conditional features)
+
+- **Pattern**: "Where [condition], the [system/component] shall [function/behavior]"
+- **Example**: "Where email verification is enabled, the system shall require confirmation before account activation"
+- **Use for**: Conditional features and enhancements
+
+## My Document Structure Standards
+
+I MUST format requirements documents with the following enhanced structure:
+
+### Required Document Format
+```md
+# Requirements Document
+
+## Introduction
+[Clear summary of the feature and its purpose]
+
+## Requirements
+
+### Requirement 1
+
+**User Story:** As a [role], I want [feature], so that [benefit]
+
+#### Acceptance Criteria
+1. WHEN [event] THEN [system] SHALL [response]
+2. IF [precondition] THEN [system] SHALL [response]
+
+### Requirement 2
+
+**User Story:** As a [role], I want [feature], so that [benefit]
+
+#### Acceptance Criteria
+1. WHEN [event] THEN [system] SHALL [response]
+2. WHEN [event] AND [condition] THEN [system] SHALL [response]
+```
+
+### Key Formatting Rules
+- Use hierarchical numbered list of requirements
+- Each requirement MUST contain a user story in the specified format
+- Each requirement MUST have numbered acceptance criteria in EARS format
+- Consider edge cases, user experience, technical constraints, and success criteria
+- Include file references using #[[file:<relative_file_name>]] when relevant
+
+### Implementation Standards
+
+```I generate complete requirements.md documents with the following sections:
+
+### 1. Project Overview
+
+- Brief description of the project/feature/system
+- Purpose and objectives
+- Scope and boundaries
+
+### 2. Stakeholders
+
+- Primary users and their roles
+- Secondary users and their needs
+- Business stakeholders and their interests
+
+### 3. Functional Requirements
+
+I organize requirements by EARS categories:
+
+#### Ubiquitous Requirements
+
+- Core system functions that are always available
+- Basic system capabilities
+- Essential user interactions
+
+#### Event-Driven Requirements
+
+- User-initiated actions
+- System-triggered behaviors
+- External event responses
+
+#### State-Driven Requirements
+
+- System state dependencies
+- Context-aware behaviors
+- Conditional system responses
+
+#### Unwanted Behavior Requirements
+
+- Error handling
+- Input validation
+- Edge case management
+- Security considerations
+
+#### Optional Requirements
+
+- Conditional features
+- Enhancement capabilities
+- Future extensibility
+
+### 4. Non-Functional Requirements
+
+- **Performance**: Response times, throughput, scalability
+- **Security**: Authentication, authorization, data protection
+- **Usability**: User experience, accessibility, learnability
+- **Reliability**: Availability, fault tolerance, backup
+- **Compatibility**: Platform support, browser compatibility
+- **Maintainability**: Code quality, documentation, testing
+
+### 5. Use Cases
+
+- Primary user workflows
+- System interaction scenarios
+- Success and failure paths
+
+### 6. Acceptance Criteria
+
+- Measurable criteria for each requirement
+- Test scenarios and expected outcomes
+- Definition of "done" for each feature
+
+### 7. Technical Context
+
+- Technology stack considerations
+- Integration requirements
+- Deployment constraints
+
+## My Analysis Process
+
+When users provide input, I:
+
+1. **Analyze Project Scope**: Understand what they want to build
+2. **Identify Stakeholders**: Determine who will use the system
+3. **Extract Key Functionality**: Define main features and capabilities
+4. **Consider Constraints**: Account for technical or business limitations
+5. **Define Success Criteria**: Establish measurable outcomes
+
+## My Quality Standards
+
+- **Clarity**: Each requirement I generate is unambiguous
+- **Testability**: Every requirement I create is verifiable
+- **Completeness**: I cover all necessary aspects of the system
+- **Consistency**: I use consistent language and patterns
+- **Traceability**: My requirements are easily trackable
+
+## My Response Process
+
+When users provide their input, I respond with:
+
+1. **Confirmation**: I acknowledge the user's input
+2. **Analysis**: Brief analysis of what I understand
+3. **Requirements Generation**: Complete requirements.md document
+4. **Next Steps**: Guidance on what to do next (design, tasks, etc.)
+
+## My Output Standards
+
+- I use clean, professional Markdown
+- I include all EARS categories with appropriate examples
+- I ensure requirements are specific and measurable
+- I use consistent terminology throughout
+- I include placeholders for design.md and tasks.md files
+
+---
+
+_This framework serves as my operational guide for creating requirements that are so clear and specific that developers can implement them without ambiguity, testers can verify them without confusion, and stakeholders can understand exactly what will be delivered._
diff --git a/.cursor/rules/spec/tasks.mdc b/.cursor/rules/spec/tasks.mdc
new file mode 100644
index 0000000..9fc70a6
--- /dev/null
+++ b/.cursor/rules/spec/tasks.mdc
@@ -0,0 +1,244 @@
+---
+alwaysApply: false
+---
+
+# AI Tasks Generation Framework
+
+## Executive Summary
+
+I am implementing a comprehensive task generation framework using the EARS (Easy Approach to Requirements Syntax) methodology enhanced with an incremental development approach. This framework enables me to transform requirements and design documents into actionable, trackable implementation tasks with detailed project management plans that emphasize minimal code implementation and iterative development.
+
+## My Task Generation Context
+
+I work with previously generated requirements.md and design.md documents to create detailed task specifications and project management plans following an incremental development methodology. When users provide project context, I analyze both documents to generate complete tasks.md documents that bridge the gap between design and implementation using minimal, focused approaches.
+
+## Implementation Philosophy Integration
+
+### Minimal Code Approach
+- Write only the ABSOLUTE MINIMAL amount of code needed to address requirements
+- Avoid verbose implementations and any code that doesn't directly contribute to the solution
+- Focus on essential functionality only to keep the code MINIMAL
+- For multi-file complex project scaffolding, create absolute MINIMAL skeleton implementations only
+
+### Incremental Development Strategy
+- Break complex features into smaller, manageable incremental steps
+- Allow incremental development of complex features with control and feedback
+- Provide concise project structure overview, avoiding unnecessary subfolders and files
+- Focus on iterative development with user feedback loops
+
+### File Reference Integration
+- Support references to additional files via "#[[file:<relative_file_name>]]" format
+- Allow inclusion of OpenAPI specs, GraphQL specs, or other documentation to influence implementation
+
+## My Prerequisites for Task Generation
+
+Before I generate task documents, I ensure I have:
+
+1. **Requirements Document**: A complete requirements.md file with EARS methodology
+2. **Design Document**: A complete design.md file with technical specifications
+3. **Project Context**: Clear understanding of implementation constraints and team capabilities
+4. **Timeline Requirements**: Understanding of delivery expectations and milestone requirements
+5. **External References**: Support for additional documentation via #[[file:<relative_file_name>]] format
+   - Project management templates: #[[file:templates/task-template.md]]
+   - Development guidelines: #[[file:docs/dev-guidelines.md]]
+   - Testing procedures: #[[file:testing/test-procedures.md]]
+   - Deployment scripts: #[[file:scripts/deploy.sh]]
+   - Configuration management: #[[file:config/environments/]]
+
+## My EARS Methodology for Tasks
+
+I apply EARS patterns to ALL task definitions and project management activities:
+
+### 1. Ubiquitous Task Requirements
+
+- **Pattern**: "The [team/process] shall [deliverable/action]"
+- **Example**: "The development team shall maintain code quality standards"
+- **Use for**: Ongoing processes and continuous deliverables
+
+### 2. Event-Driven Task Requirements
+
+- **Pattern**: "When [milestone/event], the [team] shall [action]"
+- **Example**: "When the sprint planning meeting occurs, the team shall define sprint goals"
+- **Use for**: Milestone-driven activities and event-triggered tasks
+
+### 3. State-Driven Task Requirements
+
+- **Pattern**: "While [phase/state], the [team] shall [process/action]"
+- **Example**: "While in the development phase, the team shall conduct daily standups"
+- **Use for**: Phase-dependent activities and ongoing processes
+
+### 4. Unwanted Behavior Task Requirements
+
+- **Pattern**: "If [issue/condition], then the [team] shall [resolution/action]"
+- **Example**: "If a critical bug is discovered, then the team shall prioritize its resolution"
+- **Use for**: Issue resolution and contingency planning
+
+### 5. Optional Task Requirements
+
+- **Pattern**: "Where [condition], the [team] shall [additional work/action]"
+- **Example**: "Where performance issues are identified, the team shall conduct optimization tasks"
+- **Use for**: Conditional work and enhancement activities
+
+## My Document Structure Standards
+
+### Task Organization Principles
+- Break complex tasks into smaller, manageable incremental steps
+- Focus on minimal viable implementations for each task
+- Prioritize essential functionality over comprehensive features
+- Include feedback loops and approval checkpoints
+- Emphasize iterative development with user control
+
+### Task Breakdown Strategy
+- **Phase 1**: Minimal skeleton implementation
+- **Phase 2**: Core functionality (essential features only)
+- **Phase 3**: Incremental enhancements (based on feedback)
+- **Phase 4**: Testing and validation
+- **Phase 5**: Documentation and deployment
+
+I generate complete tasks.md documents with the following sections:
+
+### Required Task Format
+
+1. **Project Overview**: Executive summary emphasizing minimal implementation approach
+2. **Incremental Task Breakdown**: 
+   - Phase-based development with minimal code focus
+   - Each task includes acceptance criteria using EARS format
+   - Clear dependencies and prerequisites
+   - Feedback checkpoints between phases
+3. **Implementation Strategy**: 
+   - Minimal viable implementation for each component
+   - Iterative development with user control points
+   - Essential functionality prioritization
+4. **Resource Requirements**: Team roles and minimal technical stack
+5. **Risk Assessment**: Focus on over-engineering and scope creep prevention
+6. **Quality Assurance**: Minimal testing strategy with essential validations
+7. **Delivery Milestones**: Incremental deliverables with feedback loops
+
+### Key Task Formatting Rules
+- Use hierarchical lists with clear task dependencies
+- Include acceptance criteria in EARS format for each major task
+- Emphasize minimal code implementations
+- Break complex features into smaller, manageable increments
+- Include file references using #[[file:<relative_file_name>]] format when applicable
+- Focus on essential functionality over comprehensive features
+
+### 1. Project Overview & Timeline
+
+- **Project Summary**: Brief description of what's being built
+- **Timeline**: High-level project phases and milestones
+- **Team Structure**: Roles, responsibilities, and team composition
+- **Success Criteria**: How project success will be measured
+
+### 2. My Project Phases & Milestones
+
+I organize using EARS methodology:
+
+#### Phase 1: Foundation & Setup
+
+- **Ubiquitous**: "The team shall establish development environment and coding standards"
+- **Event-Driven**: "When the project repository is created, the team shall set up CI/CD pipelines"
+- **State-Driven**: "While in the setup phase, the team shall configure development tools"
+- **Unwanted Behavior**: "If environment setup fails, then the team shall document and resolve issues"
+- **Optional**: "Where additional tools are needed, the team shall evaluate and integrate them"
+
+#### Phase 2: Core Development
+
+- **Ubiquitous**: "The development team shall implement features according to design specifications"
+- **Event-Driven**: "When a feature is completed, the team shall conduct code reviews"
+- **State-Driven**: "While developing features, the team shall maintain test coverage"
+- **Unwanted Behavior**: "If code quality drops, then the team shall refactor and improve"
+- **Optional**: "Where performance issues arise, the team shall optimize code"
+
+#### Phase 3: Testing & Quality Assurance
+
+- **Ubiquitous**: "The QA team shall ensure all requirements are met"
+- **Event-Driven**: "When features are ready, the QA team shall execute test plans"
+- **State-Driven**: "While testing is ongoing, the team shall track and resolve defects"
+- **Unwanted Behavior**: "If critical defects are found, then the team shall prioritize fixes"
+- **Optional**: "Where automation is possible, the team shall implement automated testing"
+
+#### Phase 4: Deployment & Release
+
+- **Ubiquitous**: "The DevOps team shall ensure smooth deployment processes"
+- **Event-Driven**: "When testing is complete, the team shall prepare for deployment"
+- **State-Driven**: "While deploying, the team shall monitor system health"
+- **Unwanted Behavior**: "If deployment fails, then the team shall rollback and investigate"
+- **Optional**: "Where monitoring shows issues, the team shall implement improvements"
+
+### 3. My Detailed Task Breakdown
+
+For each major component/feature, I provide:
+
+#### Backend Development Tasks
+
+- **Database Setup**: Schema creation, migration scripts, seed data
+- **API Development**: Endpoint implementation, validation, error handling
+- **Business Logic**: Core service implementation, workflow management
+- **Authentication**: User management, security implementation
+- **Integration**: External API connections, webhook handling
+
+#### Frontend Development Tasks
+
+- **Component Development**: UI component creation and styling
+- **State Management**: Application state, data flow, caching
+- **User Experience**: User interface implementation, responsive design
+- **Accessibility**: WCAG compliance, keyboard navigation
+- **Testing**: Unit tests, integration tests, user acceptance tests
+
+#### Infrastructure & DevOps Tasks
+
+- **Environment Setup**: Development, staging, production environments
+- **CI/CD Pipeline**: Automated testing, building, and deployment
+- **Monitoring**: Logging, metrics, alerting systems
+- **Security**: Security scanning, vulnerability assessment
+- **Documentation**: API docs, user guides, technical documentation
+
+### 4. Task Dependencies & Relationships
+
+- **Prerequisites**: What must be completed before each task
+- **Dependencies**: Tasks that depend on others
+- **Parallel Work**: Tasks that can be worked on simultaneously
+- **Critical Path**: Tasks that affect overall project timeline
+- **Blockers**: Potential obstacles and mitigation strategies
+
+### 5. My Effort Estimation & Resource Allocation
+
+- **Time Estimates**: Hours/days for each task (include confidence levels)
+- **Resource Requirements**: Skills, tools, and team members needed
+- **Capacity Planning**: Team availability and workload distribution
+- **Risk Factors**: High-effort tasks and uncertainty areas
+- **Buffer Time**: Additional time for unexpected issues
+
+## My Analysis Process
+
+Before generating tasks, I:
+
+1. **Review Requirements**: Understand all functional and non-functional requirements
+2. **Analyze Design**: Understand technical architecture and implementation approach
+3. **Assess Team Capabilities**: Consider team skills, experience, and capacity
+4. **Identify Dependencies**: Map task relationships and critical path
+5. **Consider Constraints**: Account for timeline, budget, and resource limitations
+6. **Plan Risk Mitigation**: Identify potential issues and contingency plans
+
+## My Quality Standards
+
+- **Completeness**: I cover all requirements and design elements
+- **Clarity**: My tasks are unambiguous and actionable
+- **Realism**: My estimates are achievable with available resources
+- **Traceability**: I link tasks to specific requirements and design decisions
+- **Measurability**: Each task has clear completion criteria
+- **Prioritization**: My tasks are properly prioritized and sequenced
+
+## My Response Process
+
+When users provide their input, I respond with:
+
+1. **Requirements & Design Analysis**: Summary of what needs to be implemented
+2. **Project Structure**: High-level project phases and timeline
+3. **Detailed Tasks**: Complete tasks.md document with EARS methodology
+4. **Implementation Strategy**: Key considerations for project execution
+5. **Next Steps**: Immediate actions and first sprint planning
+
+---
+
+_This framework serves as my operational guide for creating task breakdowns that development teams can follow with confidence, project managers can track effectively, and stakeholders can understand and approve. My tasks provide a clear roadmap from requirements and design to successful project delivery._
diff --git a/.cursor/rules/steering/generator.mdc b/.cursor/rules/steering/generator.mdc
new file mode 100644
index 0000000..52f11b0
--- /dev/null
+++ b/.cursor/rules/steering/generator.mdc
@@ -0,0 +1,140 @@
+---
+alwaysApply: false
+---
+
+# AI Document Generation Framework
+
+## Executive Summary
+
+This framework establishes a systematic approach for generating high-quality steering documents that facilitate decision-making and stakeholder alignment. The framework ensures consistent structure, evidence-based recommendations, and actionable outcomes across all document types.
+
+## Document Generation Methodology
+
+**Core Process:**
+
+- **Context Analysis**: Comprehensive project file scanning and requirement extraction
+- **Evidence Compilation**: Systematic gathering of supporting data from project sources
+- **Template Application**: Structured formatting based on document type and scope
+- **Quality Validation**: Verification of recommendations and action items
+- **Output Generation**: Professional, actionable steering document delivery
+
+**Key Principles:**
+
+- Evidence-based decision making from actual project context
+- Clear accountability with specific ownership assignments
+- Consistent structure across all document types
+- Maximum 2-page format for optimal readability
+
+## Framework Requirements
+
+**Essential Capabilities:**
+
+1. **Adaptive Structure**: Dynamic document formatting based on request type and complexity
+2. **Evidence Integration**: All recommendations grounded in actual project files and code analysis
+3. **Decision Tracking**: Clear accountability with specific ownership and timelines
+4. **Scope Management**: Appropriate boundaries between product, technical, and organizational documents
+5. **Quality Assurance**: Built-in validation for completeness and actionability
+
+## Document Generation Process
+
+**Systematic Creation Workflow:**
+
+```
+Request Analysis & Classification
+├── Context Extraction
+│   ├── Project file scanning and analysis
+│   ├── Code pattern recognition
+│   ├── Requirement identification
+│   └── Stakeholder impact assessment
+├── Framework Selection
+│   ├── Document type classification (general/product/tech/structure)
+│   ├── Appropriate template selection
+│   ├── Structure customization
+│   └── Content framework application
+├── Evidence Compilation
+│   ├── Source validation and verification
+│   ├── Data synthesis and analysis
+│   ├── Alternative option research
+│   └── Supporting documentation gathering
+└── Document Generation
+    ├── Structured content creation
+    ├── Quality validation and review
+    ├── Action item specification
+    └── Professional formatting and delivery
+```
+
+**Standard Document Structure:**
+
+1. **Header Information**: Title, date, and version
+2. **Executive Summary**: Clear purpose statement and key outcomes (2-3 sentences)
+3. **Objectives**: Specific goals and success criteria
+4. **Current State Analysis**: Evidence-based assessment of existing situation
+5. **Options Considered**: Alternative approaches with pros/cons analysis
+6. **Recommended Approach**: Selected solution with detailed rationale
+7. **Implementation Plan**: Phased approach with timelines
+8. **Next Steps**: Concrete actions with specific ownership assignments
+9. **Success Metrics**: Measurable criteria for validation
+
+## Framework Benefits
+
+**Key Advantages:**
+
+- **Consistency**: Standardized format ensuring professional quality across all documents
+- **Traceability**: Clear evidence chain from project analysis to final recommendations
+- **Efficiency**: Rapid generation while maintaining thoroughness and quality
+- **Actionability**: Concrete next steps with clear ownership and accountability
+- **Scalability**: Adaptable structure for various project sizes and complexities
+
+**Implementation Approach:**
+
+1. **Automatic Application**: Framework applies to all steering document requests
+2. **Context Integration**: Comprehensive project file analysis before document creation
+3. **Dynamic Adaptation**: Structure adjusts based on request type and complexity
+4. **Quality Validation**: Built-in verification of evidence sources and logic
+5. **Continuous Improvement**: Framework evolves based on usage patterns and feedback
+
+## Quality Standards
+
+**Content Requirements:**
+
+- **Length**: Maximum 2 pages for optimal readability and focus
+- **Evidence**: All decisions supported by actual project file analysis
+- **Actionability**: Specific next steps with clear ownership assignments
+- **Language**: Professional, objective, and action-oriented communication
+- **Structure**: Consistent formatting following established templates
+
+**Validation Criteria:**
+
+- **Traceability**: Clear evidence chain from project sources to recommendations
+- **Completeness**: All required sections present with appropriate detail
+- **Logic**: Sound decision rationale with alternatives properly considered
+- **Specificity**: Concrete, assignable action items with realistic timelines
+- **Scope**: Appropriate boundaries maintained for document type and purpose
+
+## Usage Guidelines
+
+**When to Apply This Framework:**
+
+- General decision-making documents requiring stakeholder alignment
+- Process documentation and improvement initiatives
+- Cross-functional coordination and planning
+- Project steering when specialized frameworks don't apply
+
+**Framework Activation:**
+
+- Automatically applies to steering document requests
+- Maintains evidence-based approach for all recommendations
+- Ensures consistent structure and professional quality
+- Adapts to specific user requirements while maintaining standards
+
+**Success Metrics:**
+
+- **Efficiency**: Reduced time from request to document delivery
+- **Clarity**: Improved decision-making and stakeholder alignment
+- **Traceability**: Enhanced evidence chain from analysis to recommendations
+- **Actionability**: Clear ownership and accountability for next steps
+- **Quality**: Consistent professional standards across all outputs
+
+---
+
+_This framework provides systematic guidance for generating high-quality steering documents that facilitate clear decision-making and effective project alignment through evidence-based analysis and structured presentation._
diff --git a/.cursor/rules/steering/product.mdc b/.cursor/rules/steering/product.mdc
new file mode 100644
index 0000000..00619cd
--- /dev/null
+++ b/.cursor/rules/steering/product.mdc
@@ -0,0 +1,46 @@
+---
+alwaysApply: false
+---
+
+# Product Strategy Guidelines
+
+## Purpose
+
+Define product vision, market positioning, and strategic direction based on project context and documentation.
+
+## Scope & Boundaries
+
+- **Focus**: Product strategy, user experience, market alignment
+- **Exclude**: Technical architecture (see tech steering), organizational structure
+- **Evidence-Based**: All recommendations must derive from project files, user research, or documented metrics
+
+## Document Structure
+
+### Required Sections
+
+- **Executive Summary**: 2-3 sentences stating product direction and key outcomes
+- **User Context**: Target personas, needs, and pain points from project documentation
+- **Product Vision**: Long-term product aspirations and value proposition
+- **Strategic Priorities**: 3-5 key objectives for next 6-18 months
+- **Feature Roadmap**: High-level timeline of major capabilities
+- **Success Metrics**: Measurable outcomes and KPIs
+- **Risks & Mitigations**: Market, competitive, or resource constraints
+- **Next Actions**: Specific deliverables with ownership
+
+### Content Guidelines
+
+- **User-Centric**: Lead with customer value and problem-solving
+- **Data-Driven**: Reference existing user research, analytics, or feedback
+- **Actionable**: Include specific, measurable outcomes
+- **Realistic**: Align with project constraints and resources
+
+## Quality Standards
+
+- Maximum 2 pages for executive consumption
+- Each strategic decision must cite supporting evidence from codebase or documentation
+- Avoid market assumptions not supported by project context
+- Focus on product differentiation and competitive positioning
+
+## Application Context
+
+Use when defining product direction, feature prioritization, or market positioning. Ensure alignment between user needs documented in project and proposed strategic direction.
diff --git a/.cursor/rules/steering/structure.mdc b/.cursor/rules/steering/structure.mdc
new file mode 100644
index 0000000..f419e4b
--- /dev/null
+++ b/.cursor/rules/steering/structure.mdc
@@ -0,0 +1,146 @@
+---
+alwaysApply: false
+---
+
+# Development Structure Framework
+
+## Executive Summary
+
+This framework defines a structured approach to organizing and executing development workflows. The structure optimizes autonomous capabilities while maintaining clear boundaries and responsibilities in spec-driven development.
+
+## Development Structure Overview
+
+**Core Operational Components:**
+
+- **Spec Management**: Requirements gathering, design creation, task planning
+- **Code Implementation**: Execution, testing, verification
+- **Rule Processing**: Guidance through steering documents
+- **Tool Integration**: External capability extension via MCP
+
+**Standard Workflow Process:**
+
+```
+User Request → Spec Creation → Task Execution → Verification → Completion
+```
+
+## Framework Requirements
+
+**Identified Challenges:**
+
+1. **Workflow Fragmentation**: Separation between spec creation and execution creates context loss
+2. **Rule Complexity**: Multiple steering documents with overlapping guidance create confusion
+3. **Autonomous Boundaries**: Need clearer limits on when to seek user input vs. proceed independently
+4. **Context Management**: Difficulty maintaining project state across different workflow phases
+
+## Enhanced Development Structure
+
+**Unified Development Architecture:**
+
+```
+Integrated Development Process
+├── Analysis Module
+│   ├── Project Analysis
+│   ├── Context Building
+│   └── Pattern Recognition
+├── Spec Management Module
+│   ├── Requirements Engineering
+│   ├── Design Architecture
+│   └── Task Planning
+├── Execution Module
+│   ├── Code Implementation
+│   ├── Testing & Verification
+│   └── Quality Assurance
+└── Steering Integration
+    ├── Rule Processing
+    ├── Context Application
+    └── Decision Framework
+```
+
+**Enhanced Workflow Implementation:**
+
+1. **Phase 0: Unified Analysis** - Complete project understanding before any action
+2. **Phase 1: Integrated Spec Development** - Create requirements, design, and tasks as cohesive unit
+3. **Phase 2: Autonomous Execution** - Implement tasks with continuous verification
+4. **Phase 3: Holistic Verification** - Perform system-wide validation and reporting
+
+## Benefits & Implementation Rationale
+
+**Current Operational Evidence:**
+
+- Core rules emphasize autonomous operation with minimal user interruption
+- Spec workflow requires iterative user approval at each phase
+- Current structure supports both guided and autonomous modes
+
+**Operational Improvements:**
+
+1. **Reduced Context Switching**: Maintain full project context throughout unified workflow
+2. **Faster Iteration**: Integrated spec development reduces approval cycles
+3. **Better Quality**: Continuous verification throughout execution
+4. **Enhanced Autonomy**: Clear decision framework for when to proceed vs. consult
+
+## Risk Management
+
+**Risk 1: Over-Autonomy**
+
+- _Concern_: Proceeding without necessary user input
+- _Mitigation_: Maintain explicit approval gates for critical decisions
+
+**Risk 2: Complexity Overload**
+
+- _Concern_: Unified structure becoming too complex
+- _Mitigation_: Use modular design with clear separation of concerns
+
+**Risk 3: Rule Conflicts**
+
+- _Concern_: Multiple steering documents creating contradictory guidance
+- _Mitigation_: Implement hierarchical rule processing with clear precedence
+
+## Implementation Plan
+
+**Phase 1 (Immediate):**
+
+- Integrate analysis capabilities into all workflows
+- Establish unified context management system
+- Implement decision framework for autonomy boundaries
+
+**Phase 2 (Short-term):**
+
+- Optimize spec creation workflow for reduced iteration cycles
+- Enhance verification capabilities across all modules
+- Streamline steering rule processing
+
+**Phase 3 (Long-term):**
+
+- Develop advanced pattern recognition for project types
+- Implement predictive task planning based on project context
+- Create adaptive autonomy levels based on user preferences
+
+## Usage Guidelines
+
+**Framework Application:**
+
+- Implement unified analysis approach in all workflows
+- Apply structure to current and future development tasks
+- Maintain consistency across all operational phases
+
+**Required Context:**
+
+- Feedback on proposed structure changes
+- Review of workflow execution for effectiveness
+- Adjustment of preferences for autonomy levels as needed
+
+**Success Metrics:**
+
+- Reduced user approval cycles in spec development
+- Faster task execution with improved quality
+- Higher project completion rates
+
+**Communication Standards:**
+
+- Demonstrate structure changes through practical workflow execution
+- Gather feedback through actual development performance
+- Iterate approach based on real-world operational data
+
+---
+
+_This framework serves as an operational guide for enhanced autonomous development, balancing efficiency with appropriate oversight._
diff --git a/.cursor/rules/steering/tech.mdc b/.cursor/rules/steering/tech.mdc
new file mode 100644
index 0000000..d56823d
--- /dev/null
+++ b/.cursor/rules/steering/tech.mdc
@@ -0,0 +1,167 @@
+---
+alwaysApply: false
+---
+
+# Technology Decision Framework
+
+## Executive Summary
+
+This framework provides systematic guidance for generating technology steering documents that support engineering and platform decisions. The framework ensures evidence-based technical recommendations aligned with project requirements and constraints.
+
+## Technical Analysis Methodology
+
+**Core Assessment Process:**
+
+- **Architecture Analysis**: Comprehensive examination of existing systems, frameworks, and technical patterns
+- **Context Extraction**: Systematic analysis of project files to understand current technical state
+- **Gap Identification**: Identification of technical limitations and improvement opportunities
+- **Solution Evaluation**: Assessment of technology options against project requirements and constraints
+
+**Technical Evaluation Framework:**
+
+```
+Project Context Analysis
+├── Current State Assessment
+│   ├── Architecture Review
+│   ├── Technology Stack Analysis
+│   └── Performance & Scalability Review
+├── Requirements Alignment
+│   ├── Functional Requirements Mapping
+│   ├── Non-Functional Requirements Analysis
+│   └── Constraint Identification
+├── Technology Evaluation
+│   ├── Alternative Assessment
+│   ├── Risk Analysis
+│   └── Trade-off Evaluation
+└── Decision Documentation
+    ├── Rationale Development
+    ├── Implementation Planning
+    └── Alignment Verification
+```
+
+## Framework Requirements
+
+**Essential Capabilities:**
+
+1. **Context Dependency**: Comprehensive project file analysis for informed technical decisions
+2. **Evidence-Based Decisions**: All technology recommendations grounded in actual project context
+3. **Alignment Verification**: Technical decisions aligned with business and product goals
+4. **Implementation Feasibility**: Technology choices realistic given project constraints
+5. **Risk Assessment**: Thorough evaluation of technical risks and mitigation strategies
+
+## Technology Decision Framework
+
+**Enhanced Technical Analysis Process:
+
+```
+AI Technology Decision Engine
+├── Context Analysis Module
+│   ├── Project File Scanning
+│   ├── Architecture Pattern Recognition
+│   └── Technical Debt Assessment
+├── Requirements Processing Module
+│   ├── Functional Requirement Analysis
+│   ├── Performance Requirement Evaluation
+│   └── Scalability Requirement Assessment
+├── Technology Evaluation Module
+│   ├── Alternative Technology Assessment
+│   ├── Risk-Benefit Analysis
+│   └── Implementation Complexity Evaluation
+└── Decision Documentation Module
+    ├── Rationale Generation
+    ├── Implementation Planning
+    └── Stakeholder Communication
+```
+
+**Technology Document Generation Standards:**
+
+1. **Executive Summary**: High-level technical direction in clear, accessible language
+2. **Current State Analysis**: Documentation of architecture, systems, and limitations from project context
+3. **Proposed Changes**: Technology, framework, or approach recommendations based on evidence
+4. **Rationale Development**: Clear explanation of why changes are needed, aligned with project context
+5. **Alternative Evaluation**: Documentation of considered and rejected options
+6. **Risk Assessment**: Analysis of cost, performance, scalability, and maintainability concerns
+7. **Implementation Planning**: Phased steps, dependencies, and responsibilities
+8. **Alignment Verification**: Links between technical direction and business/product goals
+
+## Benefits & Implementation Rationale
+
+**Framework Advantages:**
+
+- Analysis relies on comprehensive project file examination
+- Recommendations grounded in actual project context and constraints
+- Decision framework supports both technical excellence and business alignment
+
+**Technical Decision Improvements:**
+
+1. **Evidence-Based Analysis**: All technology decisions based on actual project file evidence
+2. **Comprehensive Evaluation**: Assessment of technical, business, and implementation factors
+3. **Clear Documentation**: Transparent rationale for all technology decisions
+4. **Stakeholder Alignment**: Technical decisions support stated business goals
+
+## Risk Management
+
+**Risk 1: Insufficient Context**
+
+- _Concern_: Technology decisions made without adequate project context
+- _Mitigation_: Explicitly identify context gaps rather than making assumptions
+
+**Risk 2: Technology Bias**
+
+- _Concern_: Favoring certain technologies without proper evaluation
+- _Mitigation_: Systematic evaluation of alternatives and documented trade-offs
+
+**Risk 3: Implementation Complexity**
+
+- _Concern_: Technology recommendations too complex for project constraints
+- _Mitigation_: Assessment of implementation feasibility against available resources and timeline
+
+## Implementation Plan
+
+**Phase 1 (Immediate):**
+
+- Apply framework to all technology decision requests
+- Ensure comprehensive project context analysis before recommendations
+- Document all technology decisions with clear rationale and evidence
+
+**Phase 2 (Short-term):**
+
+- Enhance technology evaluation criteria based on project outcomes
+- Improve alternative assessment methodology
+- Strengthen alignment verification process
+
+**Phase 3 (Long-term):**
+
+- Develop predictive technology assessment capabilities
+- Implement automated technology compatibility analysis
+- Create adaptive decision frameworks based on project types
+
+## Usage Guidelines
+
+**Framework Application:**
+
+- Implement technology decision framework for all technical steering requests
+- Maintain evidence-based approach for all technology recommendations
+- Ensure clear documentation of rationale and implementation plans
+
+**Required Context:**
+
+- Comprehensive project context for technology decisions
+- Review of technology recommendations for accuracy and feasibility
+- Confirmation of alignment between technical decisions and business objectives
+
+**Success Metrics:**
+
+- Technology decisions grounded in actual project evidence
+- Clear rationale linking technical choices to business goals
+- Successful technology implementation with minimal risk
+
+**Communication Standards:**
+
+- Present technology decisions with clear, pragmatic explanations
+- Document all alternatives considered and reasons for selection
+- Provide actionable implementation guidance based on project constraints
+
+---
+
+_This framework serves as my operational guide for generating technology steering documents that justify and align technical decisions using evidence from project files, ensuring pragmatic and well-reasoned technology choices._
diff --git a/.cursor/rules/testing.mdc b/.cursor/rules/testing.mdc
new file mode 100644
index 0000000..f3d2e69
--- /dev/null
+++ b/.cursor/rules/testing.mdc
@@ -0,0 +1,53 @@
+---
+globs: tests/test_*.py
+alwaysApply: false
+---
+
+# MANDATORY DIRECTIVE: Test Validity & Scope
+
+## CORE PRINCIPLE: Meaningful and Actionable Tests
+
+Ensure tests are meaningful, valid, and correctly scoped. Tests must strictly validate the real behavior of the code under test, avoiding irrelevant or misleading checks.
+
+---
+
+## NON-NEGOTIABLE RULES OF TESTING
+
+### 1. **General Principles**
+
+- **Reflect Actual Logic:** Tests must reflect actual business and functional logic. Do not test implementation details irrelevant to the intended behavior.
+- **Assert Real Behavior:** Assertions must target real outputs, side effects, or state changes, not mock setups or artificial constructs.
+- **Avoid Redundancy:** Avoid redundant tests that re-validate what has already been fully tested elsewhere.
+- **Clarity & Confidence:** Tests should be clear, self-contained, and provide confidence in code correctness.
+
+### 2. **Unit Tests**
+
+- **Isolation:** Focus on isolated components/functions.
+- **Critical Branches:** Validate **all critical branches** of the logic, but avoid over-testing trivial or obvious framework-level behavior.
+- **Coverage:** Ensure input/output correctness and error handling are properly covered.
+- **Mock Usage:** Mocks/stubs are allowed to isolate dependencies, but **never assert on mocked behavior itself**.
+- **Characteristics:** Unit tests must be **precise, atomic, deterministic, and fast**.
+
+### 3. **Integration Tests**
+
+- **Interaction Validation:** Validate the interaction between multiple real components, ensuring that contracts, data flows, and side effects behave as intended.
+- **No Internal Mocking:** Do not mock internal components that are part of the integration under test.
+- **End-to-End Focus:** Focus on **end-to-end behavior of combined units**, but still within controlled, testable boundaries (not full E2E).
+- **Characteristics:** Integration tests must be **realistic, comprehensive, reliable, and maintainable**.
+
+### 4. **Test Quality Enforcement**
+
+- **Good Tests:** Good tests are **relevant, rigorous, maintainable, meaningful, and trustworthy**.
+- **Avoid Bad Tests:** Bad tests (flaky, superficial, redundant, misleading) must be avoided.
+- **Safety Net:** The overall test suite should act as a safety net, not a burden: it must inspire confidence, not false security.
+
+---
+
+## ENFORCEMENT
+
+Ensure that new or modified tests follow these principles. Flag:
+
+- Tests asserting on mocked calls or behavior.
+- Tests duplicating coverage already provided elsewhere.
+- Tests failing to validate real logic or missing critical scenarios.
+- Unit or integration tests that are incomplete, irrelevant, or misleading.
diff --git a/.envrc b/.envrc
new file mode 100644
index 0000000..8c837c2
--- /dev/null
+++ b/.envrc
@@ -0,0 +1,2 @@
+# PKG_CONFIG_PATH for native libraries
+export PKG_CONFIG_PATH="/usr/lib/x86_64-linux-gnu/pkgconfig:${PKG_CONFIG_PATH:-}"
diff --git a/.github/workflows/gh-pages.yml b/.github/workflows/gh-pages.yml
new file mode 100644
index 0000000..5a51969
--- /dev/null
+++ b/.github/workflows/gh-pages.yml
@@ -0,0 +1,27 @@
+name: Deploy MkDocs site
+
+on:
+  push:
+    branches:
+      - main
+      - master
+      - format/module_extraction
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v3
+
+    - name: Set up Python
+      uses: actions/setup-python@v4
+      with:
+        python-version: '3.11'
+
+    - name: Install dependencies
+      run: pip install mkdocs mkdocs-material mkdocstrings-python
+
+    - name: Deploy to GitHub Pages
+      run: mkdocs gh-deploy --force
diff --git a/.github/workflows/pypi-publish.yml b/.github/workflows/pypi-publish.yml
new file mode 100644
index 0000000..dd623a6
--- /dev/null
+++ b/.github/workflows/pypi-publish.yml
@@ -0,0 +1,70 @@
+# This workflow will upload a Python Package to PyPI when a release is created
+# For more information see: https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-python#publishing-to-package-registries
+
+# This workflow uses actions that are not certified by GitHub.
+# They are provided by a third-party and are governed by
+# separate terms of service, privacy policy, and support
+# documentation.
+
+name: Upload Python Package
+
+on:
+  release:
+    types: [published]
+
+permissions:
+  contents: read
+
+jobs:
+  release-build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.11"
+          cache: "poetry"
+
+      - name: Install Poetry
+        uses: snok/install-poetry@v1
+        with:
+          version: latest
+          virtualenvs-create: true
+          virtualenvs-in-project: true
+      
+      # - name: Run test suite
+      #   run: poetry run pytest --cov
+      
+      - name: Build release distributions
+        run: poetry build
+
+      - name: Upload distributions
+        uses: actions/upload-artifact@v4
+        with:
+          name: release-dists
+          path: dist/
+
+  pypi-publish:
+    runs-on: ubuntu-latest
+    needs:
+      - release-build
+    permissions:
+      id-token: write
+    environment:
+      name: pypi
+      url: https://pypi.org/project/cuemsutils/${{ github.event.release.name }}
+
+    steps:
+      - name: Retrieve release distributions
+        uses: actions/download-artifact@v4
+        with:
+          name: release-dists
+          path: dist/
+
+      - name: Publish release distributions to PyPI
+        uses: pypa/gh-action-pypi-publish@release/v1
+        with:
+          packages-dir: dist/
diff --git a/.gitignore b/.gitignore
index 67217ef..4c904c5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -5,3 +5,22 @@ __pycache__
 *.pyc
 *.ipynb
 .python-version
+.pytest_cache
+
+dist/
+*.egg-info/
+
+## DEV files ##
+*.log
+*.log.*
+*.log-*
+nohup.out
+*.pid
+.coverage*
+
+dev/local/
+site/
+.venv/*
+!.venv/pyvenv.cfg
+
+dev/test_xml_files/media/
diff --git a/.gitmodules b/.gitmodules
deleted file mode 100644
index b90f3f3..0000000
--- a/.gitmodules
+++ /dev/null
@@ -1,3 +0,0 @@
-[submodule "cuems_editor"]
-	path = src/cuems/cuems_editor
-	url = https://github.com/stagesoft/cuems_editor
diff --git a/.venv/pyvenv.cfg b/.venv/pyvenv.cfg
new file mode 100644
index 0000000..f195d0b
--- /dev/null
+++ b/.venv/pyvenv.cfg
@@ -0,0 +1,9 @@
+home = /home/adria/.pyenv/versions/3.11.9/bin
+implementation = CPython
+version_info = 3.11.9.final.0
+virtualenv = 20.35.4
+include-system-site-packages = false
+base-prefix = /home/adria/.pyenv/versions/3.11.9
+base-exec-prefix = /home/adria/.pyenv/versions/3.11.9
+base-executable = /home/adria/.pyenv/versions/3.11.9/bin/python3.11
+prompt = cuemsengine-py3.11
diff --git a/README.md b/README.md
index 1d763cd..58a6f19 100644
--- a/README.md
+++ b/README.md
@@ -7,3 +7,20 @@ Run
 python3 test_engine.py
 ```
 to check out.
+
+## Development: editable install from source
+
+When the engine is installed under `/usr/lib/cuems` (e.g. via the Debian package), you can make the installed code point at this source tree so edits here are used without reinstalling:
+
+```bash
+# From the cuems-engine repo root (or set CUEMS_ENGINE_SRC to the repo root)
+./scripts/link-dev.sh
+```
+
+This replaces `/usr/lib/cuems/lib/python3.11/site-packages/cuemsengine` with a symlink to `src/cuemsengine`. Restart the controller-engine and node-engine services (or processes) to pick up changes. To restore the installed package, reinstall the cuems-engine deb.
+
+
+## Release notes
+
+### v0.1.0
+Initial release.
diff --git a/TODO.md b/TODO.md
new file mode 100644
index 0000000..475c402
--- /dev/null
+++ b/TODO.md
@@ -0,0 +1,13 @@
+# Elements to be developed:
+
+## OSC:
+ - Define node-specific status endpoints for OSC
+ - Add a new tool for the server to check the status of the OSC
+ - Register controller endpoints for OSC on NodeEngine
+ - Properly split between OssiaClient and PlayerClient to remove set_values calls from OSCQueryDevice instances
+
+## Editor-Controller communications:
+ - Unify return_message structure between editor and controller:
+    - Is `action_uuid` required? Should not be replaced by `context`?
+    - `type` and `action` should be equivalent?
+    - will `value` always be `'OK'` for `confirm_to_editor`?
diff --git a/conftest.py b/conftest.py
new file mode 100644
index 0000000..0533b0b
--- /dev/null
+++ b/conftest.py
@@ -0,0 +1,11 @@
+import os
+import sys
+from pathlib import Path
+
+# Get the project root directory
+project_root = Path(__file__).parent
+
+# Add src directory to the beginning of sys.path
+src_path = str(project_root / "src")
+if src_path not in sys.path:
+    sys.path.insert(0, src_path) 
\ No newline at end of file
diff --git a/debian/changelog b/debian/changelog
index ad60d7a..2c6afd0 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,12 +1,29 @@
-osc-control (0.0.0-2) unstable; urgency=low
+cuems-engine (0.1.0rc2-1) bookworm; urgency=medium
 
-  * Making it work
+  * Fixed EngineStatus initialization order bug
+    - Initialize _recieved before test property to prevent AttributeError
+  * Fixed OSCQuery GIL crashes
+    - Disabled ALL OSCQuery callbacks to prevent GIL crashes from C++ threads
+    - Implemented polling loop for safe command value change detection (100ms)
+    - Python thread safely checks for command value changes
+    - Commands auto-reset after execution for next trigger
+  * Added comprehensive OSCQuery debugging
+    - Enhanced logging for endpoint creation and node management
+    - Debug output for status endpoint building process
+  * JACK/PipeWire compatibility
+    - Maintains no_start_server=True for proper systemd/PipeWire integration
+    - Requires PipeWire JACK libraries via LD_LIBRARY_PATH
 
- -- Ion Reguera <ion@stagelab.net>  Thu, 21 May 2020 17:00:00 +0200
+ -- Ion Reguera <ion@stagelab.coop>  Thu, 22 Jan 2026 17:50:00 +0100
 
+cuems-engine (0.1.0rc1-1) bookworm; urgency=medium
 
-osc-control (0.0-1) unstable; urgency=low
+  * Initial Debian package release
+  * Engine infrastructure for CUEMS system
+  * Controller and node engines for media playback
+  * MIDI and OSC communication support
+  * Integration with cuems-utils virtual environment
+  * Systemd service support
+  * Console scripts: node-engine, controller-engine, system-ports
 
-  * Initial dev release
-
- -- Ion Reguera <ion@stagelab.net>  Thu, 21 May 2020 17:00:00 +0200
\ No newline at end of file
+ -- Ion Reguera <ion@stagelab.coop>  Thu, 11 Dec 2025 00:00:00 +0000
diff --git a/debian/compat b/debian/compat
deleted file mode 100644
index ec63514..0000000
--- a/debian/compat
+++ /dev/null
@@ -1 +0,0 @@
-9
diff --git a/debian/control b/debian/control
index c1989e6..2e7a5cd 100644
--- a/debian/control
+++ b/debian/control
@@ -1,12 +1,35 @@
-Source: osc-control
+Source: cuems-engine
 Section: python
-Priority: extra
-Maintainer: Ion Reguera <ion@stagelab.net>
-Build-Depends: debhelper (>= 9), python3, dh-virtualenv (>= 0.8)
-Standards-Version: 3.9.5
+Priority: optional
+Maintainer: Ion Reguera <ion@stagelab.coop>
+Build-Depends: debhelper-compat (= 13),
+               dh-virtualenv (>= 1.2),
+               python3-all,
+               python3-setuptools,
+               python3-pip,
+               python3-dev
+Standards-Version: 4.6.0
+Homepage: https://github.com/stagesoft/cuems-engine
 
-Package: osc-control
-Architecture: any
-Pre-Depends: dpkg (>= 1.16.1), python3.7, ${misc:Pre-Depends}
-Depends: ${misc:Depends}, libossia, libmtcmaster, audioplayer, xjadeo
-Description: osc-control Package!
+Package: cuems-engine
+Architecture: all
+Depends: ${misc:Depends},
+         ${python3:Depends},
+         cuems-utils (>= 0.1.0rc4),
+         cuems-common (>= 1.0.0),
+         python3 (>= 3.11),
+         python3-pyossia (>= 2.0.0-rc6+124+cuems2),
+         python3-systemd (>= 235),
+         python3-packaging
+Description: CUEMS Engine - Engine infrastructure of the CueMS system
+ CUEMS Engine provides the core engine infrastructure for the CUEMS
+ system, including controller and node engines for media playback,
+ MIDI control, and OSC communication.
+ .
+ This package installs into the /usr/lib/cuems/ virtual environment
+ provided by cuems-utils. Console scripts are installed to
+ /usr/lib/cuems/bin/node-engine, /usr/lib/cuems/bin/controller-engine,
+ and /usr/lib/cuems/bin/system-ports.
+ .
+ The systemd service files are provided by cuems-common and run the
+ respective console scripts.
diff --git a/debian/osc-control.init b/debian/osc-control.init
deleted file mode 100644
index 61af83a..0000000
--- a/debian/osc-control.init
+++ /dev/null
@@ -1,37 +0,0 @@
-#!/bin/sh
-### BEGIN INIT INFO
-# Provides:          osc-control
-# Required-Start:    $local_fs $remote_fs $network $syslog
-# Required-Stop:     $local_fs $remote_fs $network $syslog
-# Default-Start:     2 3 4 5
-# Default-Stop:      0 1 6
-# X-Interactive:     true
-# Short-Description: Osc-control daemon
-# Description:       Start Osc-control daemon
-#  This script will start the Oscquery server.
-### END INIT INFO
-
-DESC="Osc Control server"
-NAME=osc-control
-DAEMON=/opt/
-PYTHON_VERSION=/opt/
-PY_ENV=/opt
-
-case "$1" in
-  start)
-    echo "Starting example"
-    # run application you want to start
-    $PYTHON_VERSION $DAEMON &
-    ;;
-  stop)
-    echo "Stopping example"
-    # kill application you want to stop
-    killall python
-    ;;
-  *)
-    echo "Usage: /etc/init.d/example{start|stop}"
-    exit 1
-    ;;
-esac
- 
-exit 0
diff --git a/debian/osc-control.triggers b/debian/osc-control.triggers
deleted file mode 100644
index 4713578..0000000
--- a/debian/osc-control.triggers
+++ /dev/null
@@ -1,8 +0,0 @@
-# Register interest in Python interpreter changes (Python 2 for now); and
-# don't make the Python package dependent on the virtualenv package
-# processing (noawait)
-interest-noawait /usr/bin/python2.7
-interest-noawait /usr/bin/python3.7
-
-# Also provide a symbolic trigger for all dh-virtualenv packages
-interest dh-virtualenv-interpreter-update
diff --git a/debian/postinst b/debian/postinst
new file mode 100755
index 0000000..47dab03
--- /dev/null
+++ b/debian/postinst
@@ -0,0 +1,77 @@
+#!/bin/bash
+set -e
+
+CUEMS_VENV="/usr/lib/cuems"
+
+case "$1" in
+    configure)
+        # Verify virtual environment exists
+        if [ ! -f "$CUEMS_VENV/bin/python3" ]; then
+            echo "ERROR: Virtual environment not found at $CUEMS_VENV" >&2
+            echo "Please ensure cuems-utils package is properly installed." >&2
+            exit 1
+        fi
+        
+        # Verify console scripts were installed
+        if [ ! -f "$CUEMS_VENV/bin/controller-engine" ]; then
+            echo "WARNING: Console script controller-engine not found" >&2
+        fi
+        if [ ! -f "$CUEMS_VENV/bin/node-engine" ]; then
+            echo "WARNING: Console script node-engine not found" >&2
+        fi
+        
+        # Reload systemd (service files from cuems-common)
+        if command -v deb-systemd-helper >/dev/null 2>&1; then
+            deb-systemd-helper update-state >/dev/null 2>&1 || true
+        elif command -v systemctl >/dev/null 2>&1; then
+            systemctl daemon-reload || true
+        fi
+        
+        echo "cuems-engine installed successfully."
+        echo "Package: cuemsengine installed to $CUEMS_VENV/lib/python*/site-packages/"
+        echo "Console scripts: $CUEMS_VENV/bin/controller-engine, $CUEMS_VENV/bin/node-engine, $CUEMS_VENV/bin/system-ports"
+        echo "Service files provided by cuems-common package."
+        
+        # Enable and start the services
+        if command -v systemctl >/dev/null 2>&1; then
+            # Enable and start cuems-controller-engine (controller-engine)
+            if systemctl is-enabled cuems-controller-engine >/dev/null 2>&1; then
+                echo "Service cuems-controller-engine is already enabled."
+            else
+                systemctl enable cuems-controller-engine || echo "WARNING: Failed to enable cuems-controller-engine service" >&2
+            fi
+            
+            if systemctl is-active --quiet cuems-controller-engine 2>/dev/null; then
+                echo "Service cuems-controller-engine is already running."
+            else
+                systemctl start cuems-controller-engine || echo "WARNING: Failed to start cuems-controller-engine service" >&2
+            fi
+            
+            # Enable and start cuems-node-engine
+            if systemctl is-enabled cuems-node-engine >/dev/null 2>&1; then
+                echo "Service cuems-node-engine is already enabled."
+            else
+                systemctl enable cuems-node-engine || echo "WARNING: Failed to enable cuems-node-engine service" >&2
+            fi
+            
+            if systemctl is-active --quiet cuems-node-engine 2>/dev/null; then
+                echo "Service cuems-node-engine is already running."
+            else
+                systemctl start cuems-node-engine || echo "WARNING: Failed to start cuems-node-engine service" >&2
+            fi
+        fi
+        ;;
+        
+    abort-upgrade|abort-remove|abort-deconfigure)
+        ;;
+        
+    *)
+        echo "postinst called with unknown argument \`$1'" >&2
+        exit 1
+        ;;
+esac
+
+#DEBHELPER#
+
+exit 0
+
diff --git a/debian/postrm b/debian/postrm
new file mode 100755
index 0000000..34a9a65
--- /dev/null
+++ b/debian/postrm
@@ -0,0 +1,21 @@
+#!/bin/bash
+set -e
+
+case "$1" in
+    purge|remove|upgrade|failed-upgrade|abort-install|abort-upgrade|disappear)
+        # Reload systemd after removing service files
+        if [ -d /run/systemd/system ]; then
+            systemctl daemon-reload || true
+        fi
+        ;;
+        
+    *)
+        echo "postrm called with unknown argument \`$1'" >&2
+        exit 1
+        ;;
+esac
+
+#DEBHELPER#
+
+exit 0
+
diff --git a/debian/prerm b/debian/prerm
new file mode 100755
index 0000000..d00a923
--- /dev/null
+++ b/debian/prerm
@@ -0,0 +1,35 @@
+#!/bin/bash
+set -e
+
+case "$1" in
+    remove|deconfigure)
+        # Stop services if running (service files from cuems-common)
+        if [ -d /run/systemd/system ]; then
+            if command -v systemctl >/dev/null 2>&1; then
+                if systemctl is-active --quiet cuems-controller-engine 2>/dev/null; then
+                    systemctl stop cuems-controller-engine || true
+                fi
+                if systemctl is-active --quiet cuems-node-engine 2>/dev/null; then
+                    systemctl stop cuems-node-engine || true
+                fi
+            fi
+        fi
+        ;;
+        
+    upgrade)
+        # Don't stop services on upgrade
+        ;;
+        
+    failed-upgrade)
+        ;;
+        
+    *)
+        echo "prerm called with unknown argument \`$1'" >&2
+        exit 1
+        ;;
+esac
+
+#DEBHELPER#
+
+exit 0
+
diff --git a/debian/rules b/debian/rules
index e844f30..7ae8ef2 100755
--- a/debian/rules
+++ b/debian/rules
@@ -1,5 +1,98 @@
 #!/usr/bin/make -f
-override_dh_virtualenv:
-	python2 $(shell which dh_virtualenv) --python python3.7
+
+export DH_VIRTUALENV_INSTALL_ROOT=/usr/lib
+
 %:
 	dh $@ --with python-virtualenv
+
+override_dh_virtualenv:
+	# Use existing venv at /usr/lib/cuems (created by cuems-utils)
+	# Install package into it
+	dh_virtualenv --python python3 \
+		--install-suffix cuems \
+		--use-system-packages
+	# Ensure packaging is installed in venv (mido requires it)
+	/usr/lib/cuems/bin/pip install --force-reinstall packaging || true
+
+override_dh_auto_clean:
+	rm -rf build *.egg-info src/*.egg-info
+	find . -name '*.pyc' -delete
+	find . -name '__pycache__' -type d -exec rm -rf {} + 2>/dev/null || true
+	dh_auto_clean
+
+override_dh_fixperms:
+	# Remove .gitignore files installed by dh_virtualenv
+	find debian/cuems-engine -name ".gitignore" -delete
+	# Remove virtualenv infrastructure files (provided by cuems-utils)
+	find debian/cuems-engine/usr/lib/cuems/bin -name "activate*" -delete
+	find debian/cuems-engine/usr/lib/cuems/bin -name "pip*" -delete
+	find debian/cuems-engine/usr/lib/cuems/bin -name "python*" -delete
+	find debian/cuems-engine/usr/lib/cuems/bin -name "wheel*" -delete
+	find debian/cuems-engine/usr/lib/cuems/bin -name "xmlschema-*" -delete
+	find debian/cuems-engine/usr/lib/cuems/bin -name "pwiz.py" -delete
+	# Remove mido console scripts (not needed)
+	find debian/cuems-engine/usr/lib/cuems/bin -name "mido-*" -delete
+	rm -f debian/cuems-engine/usr/lib/cuems/pyvenv.cfg
+	rm -rf debian/cuems-engine/usr/lib/cuems/lib/python3.11/site-packages/_virtualenv.*
+	rm -rf debian/cuems-engine/usr/lib/cuems/lib/python3.11/site-packages/_distutils_hack
+	# Remove shared dependencies (provided by cuems-utils)
+	rm -rf debian/cuems-engine/usr/lib/cuems/lib/python3.11/site-packages/aiofiles-*.dist-info
+	rm -rf debian/cuems-engine/usr/lib/cuems/lib/python3.11/site-packages/cffi-*.dist-info
+	rm -rf debian/cuems-engine/usr/lib/cuems/lib/python3.11/site-packages/Deprecated-*.dist-info
+	rm -rf debian/cuems-engine/usr/lib/cuems/lib/python3.11/site-packages/elementpath-*.dist-info
+	rm -rf debian/cuems-engine/usr/lib/cuems/lib/python3.11/site-packages/json_fix-*.dist-info
+	rm -rf debian/cuems-engine/usr/lib/cuems/lib/python3.11/site-packages/lxml-*.dist-info
+	rm -rf debian/cuems-engine/usr/lib/cuems/lib/python3.11/site-packages/peewee-*.dist-info
+	rm -rf debian/cuems-engine/usr/lib/cuems/lib/python3.11/site-packages/pip-*.dist-info
+	rm -rf debian/cuems-engine/usr/lib/cuems/lib/python3.11/site-packages/pycparser-*.dist-info
+	rm -rf debian/cuems-engine/usr/lib/cuems/lib/python3.11/site-packages/pynng-*.dist-info
+	rm -rf debian/cuems-engine/usr/lib/cuems/lib/python3.11/site-packages/setuptools-*.dist-info
+	rm -rf debian/cuems-engine/usr/lib/cuems/lib/python3.11/site-packages/sniffio-*.dist-info
+	rm -rf debian/cuems-engine/usr/lib/cuems/lib/python3.11/site-packages/timecode-*.dist-info
+	rm -rf debian/cuems-engine/usr/lib/cuems/lib/python3.11/site-packages/websockets-*.dist-info
+	rm -rf debian/cuems-engine/usr/lib/cuems/lib/python3.11/site-packages/wheel-*.dist-info
+	rm -rf debian/cuems-engine/usr/lib/cuems/lib/python3.11/site-packages/wrapt-*.dist-info
+	rm -rf debian/cuems-engine/usr/lib/cuems/lib/python3.11/site-packages/xmlschema-*.dist-info
+	rm -rf debian/cuems-engine/usr/lib/cuems/lib/python3.11/site-packages/cuemsutils-*.dist-info
+	# Remove systemd-python (provided by python3-systemd Debian package)
+	rm -rf debian/cuems-engine/usr/lib/cuems/lib/python3.11/site-packages/systemd_python-235.dist-info
+	rm -rf debian/cuems-engine/usr/lib/cuems/lib/python3.11/site-packages/systemd
+	# Remove shared package directories (provided by cuems-utils)
+	rm -rf debian/cuems-engine/usr/lib/cuems/lib/python3.11/site-packages/aiofiles
+	rm -rf debian/cuems-engine/usr/lib/cuems/lib/python3.11/site-packages/cffi
+	rm -rf debian/cuems-engine/usr/lib/cuems/lib/python3.11/site-packages/deprecated
+	rm -rf debian/cuems-engine/usr/lib/cuems/lib/python3.11/site-packages/elementpath
+	rm -rf debian/cuems-engine/usr/lib/cuems/lib/python3.11/site-packages/json_fix
+	rm -rf debian/cuems-engine/usr/lib/cuems/lib/python3.11/site-packages/lxml
+	rm -rf debian/cuems-engine/usr/lib/cuems/lib/python3.11/site-packages/peewee.py
+	rm -rf debian/cuems-engine/usr/lib/cuems/lib/python3.11/site-packages/playhouse
+	rm -rf debian/cuems-engine/usr/lib/cuems/lib/python3.11/site-packages/pycparser
+	rm -rf debian/cuems-engine/usr/lib/cuems/lib/python3.11/site-packages/pynng
+	rm -rf debian/cuems-engine/usr/lib/cuems/lib/python3.11/site-packages/setuptools
+	rm -rf debian/cuems-engine/usr/lib/cuems/lib/python3.11/site-packages/sniffio
+	rm -rf debian/cuems-engine/usr/lib/cuems/lib/python3.11/site-packages/timecode
+	rm -rf debian/cuems-engine/usr/lib/cuems/lib/python3.11/site-packages/websockets
+	rm -rf debian/cuems-engine/usr/lib/cuems/lib/python3.11/site-packages/wrapt
+	rm -rf debian/cuems-engine/usr/lib/cuems/lib/python3.11/site-packages/xmlschema
+	rm -rf debian/cuems-engine/usr/lib/cuems/lib/python3.11/site-packages/cuemsutils
+	rm -rf debian/cuems-engine/usr/lib/cuems/lib/python3.11/site-packages/daemon
+	rm -rf debian/cuems-engine/usr/lib/cuems/lib/python3.11/site-packages/pip
+	rm -rf debian/cuems-engine/usr/lib/cuems/lib/python3.11/site-packages/pkg_resources
+	# Remove shared binary files (provided by cuems-utils)
+	find debian/cuems-engine/usr/lib/cuems/lib/python3.11/site-packages -name "*.so" -delete
+	# Remove shared .pth files (provided by cuems-utils)
+	find debian/cuems-engine/usr/lib/cuems/lib/python3.11/site-packages -name "*.pth" -delete
+	# Remove shared .virtualenv files (provided by cuems-utils)
+	find debian/cuems-engine/usr/lib/cuems/lib/python3.11/site-packages -name "*.virtualenv" -delete
+	# Remove shared files (provided by cuems-utils)
+	rm -f debian/cuems-engine/usr/lib/cuems/lib/python3.11/site-packages/pwiz.py
+	rm -rf debian/cuems-engine/usr/lib/cuems/lib/python3.11/site-packages/tests
+	rm -rf debian/cuems-engine/usr/lib/cuems/lib/python3.11/site-packages/wheel
+	# Remove __pycache__ directories from installed package
+	find debian/cuems-engine -type d -name '__pycache__' -exec rm -rf {} + 2>/dev/null || true
+	find debian/cuems-engine -name '*.pyc' -delete
+	find debian/cuems-engine -name '*.pyo' -delete
+	dh_fixperms
+
+override_dh_auto_test:
+	# Skip tests during package build
diff --git a/debian/source/format b/debian/source/format
new file mode 100644
index 0000000..435dd71
--- /dev/null
+++ b/debian/source/format
@@ -0,0 +1,2 @@
+3.0 (native)
+
diff --git a/dev/AudioPlayerRemote.py b/dev/AudioPlayerRemote.py
new file mode 100644
index 0000000..3ae04a9
--- /dev/null
+++ b/dev/AudioPlayerRemote.py
@@ -0,0 +1,35 @@
+class AudioPlayerRemote():
+    # class that exposes osc control of the player and manages the player
+    def __init__(self, port, card_id, path, args, media):
+        self.port = port
+        self.card_id = card_id
+        self.audioplayer = AudioPlayer(self.port, self.card_id, path, args, media)
+        self.__start_remote()
+
+    def __start_remote(self):
+        self.remote_osc_audioplayer = ossia.ossia.OSCDevice("remoteAudioPlayer{}".format(self.card_id), "127.0.0.1", self.port, self.port+1)
+
+        self.remote_audioplayer_quit_node = self.remote_osc_audioplayer.add_node("/audioplayer/quit")
+        self.audioplayer_quit_parameter = self.remote_audioplayer_quit_node.create_parameter(ossia.ValueType.Impulse)
+
+        self.remote_audioplayer_level_node = self.remote_osc_audioplayer.add_node("/audioplayer/level")
+        self.audioplayer_level_parameter = self.remote_audioplayer_level_node.create_parameter(ossia.ValueType.Int)
+
+        self.remote_audioplayer_load_node = self.remote_osc_audioplayer.add_node("/audioplayer/load")
+        self.audioplayer_load_parameter = self.remote_audioplayer_load_node.create_parameter(ossia.ValueType.String)
+
+    def start(self):
+        self.audioplayer.start()
+
+    def kill(self):
+        self.audioplayer.kill()
+
+    def load(self, load_path):
+        self.audioplayer_load_parameter.value = load_path
+
+    def level(self, level):
+        self.audioplayer_level_parameter.value = level
+
+    def quit(self):
+        self.audioplayer.kill()
+        self.audioplayer_quit_parameter.value = True
diff --git a/dev/CuemsEngine.py b/dev/CuemsEngine.py
new file mode 100644
index 0000000..0e47ef3
--- /dev/null
+++ b/dev/CuemsEngine.py
@@ -0,0 +1,178 @@
+import queue
+from subprocess import CalledProcessError
+from .Settings import Settings
+from .CuemsScript import CuemsScript
+from .AudioCue import AudioCue
+from .DmxCue import DmxCue
+
+
+class CuemsEngine():
+    """
+    Copilot proposal for the CuemsEngine class
+    """
+    def __init__(self, config):
+        self.config = config
+        self.logger = logging.getLogger(__name__)
+        self.logger.info("CuemsEngine initialized")
+        self.cuems = Cuems(config)
+
+    def run(self):
+        self.logger.info("CuemsEngine running")
+        self.cuems.run()
+
+    def stop(self):
+        self.logger.info("CuemsEngine stopping")
+        self.cuems.stop()
+
+    def get_config(self):
+        return self.config
+
+    def get_cue(self):
+        return self.cuems.get_cue()
+
+    def get_cue_list(self):
+        return self.cuems.get_cue_list()
+
+    ### Removed code from the original CuemsEngine class
+    def load_project_callback(self, **kwargs):
+        ''' 20240219 Commented for proto_loop_fruta branch where we do not need to check mappings as they are hard coded
+        try:
+            if self.check_project_mappings():
+                logger.info('Project mappings check OK!')
+        except Exception as e:
+            logger.exception(f'Wrong configuration on input/output mappings: {e}')
+            if self.cm.amimaster:
+                self.editor_queue.put({'type':'error', 'action':'project_ready', 'action_uuid':self._editor_request_uuid, 'value':'Wrong configuration on input/output mappings'})
+            else:
+                self.ossia_server._oscquery_registered_nodes['/engine/status/load'][0].value = 'ERROR'
+
+                self.ossia_server._oscquery_registered_nodes['/engine/comms/type'][0].value = 'error'
+                self.ossia_server._oscquery_registered_nodes['/engine/comms/subtype'][0].value = 'mappings'
+                self.ossia_server._oscquery_registered_nodes['/engine/comms/action'][0].value = 'project_ready'
+                self.ossia_server._oscquery_registered_nodes['/engine/comms/action_uuid'][0].value = self._editor_request_uuid
+                self.ossia_server._oscquery_registered_nodes['/engine/comms/value'][0].value = 'Wrong configuration on input/output mappings'
+            return    
+        ''' 
+
+        ''' 20240219 Commented for proto_loop_fruta branch where we do not need to check media loading as media is also fixed and hard coded
+        try:
+            media_fail_list = self.script_media_check()
+        except Exception as e:
+            logger.exception(f'Exception raised while performing media check: {e}')
+
+        if media_fail_list:
+            logger.error(f'Media not found for project: {kwargs["value"]} !!!')
+
+            if self.cm.amimaster:
+                pass
+                '''''' By the moment we allow the show mode to get ready even if there are media files missing...
+                # self.editor_queue.put({'type':'error', 'action':'project_ready', 'action_uuid':self._editor_request_uuid, 'subtype':'media', 'data':list(media_fail_list.keys())})
+                ''''''
+            else:
+                self.ossia_server._oscquery_registered_nodes['/engine/status/load'][0].value = 'ERROR'
+
+                self.ossia_server._oscquery_registered_nodes['/engine/comms/type'][0].value = 'error'
+                self.ossia_server._oscquery_registered_nodes['/engine/comms/subtype'][0].value = 'media'
+                self.ossia_server._oscquery_registered_nodes['/engine/comms/action'][0].value = 'project_ready'
+                self.ossia_server._oscquery_registered_nodes['/engine/comms/action_uuid'][0].value = self._editor_request_uuid
+                self.ossia_server._oscquery_registered_nodes['/engine/comms/value'][0].value = 'Media not found'
+                self.ossia_server._oscquery_registered_nodes['/engine/comms/data'][0].value = list(media_fail_list.keys())
+
+            '''''' By the moment we allow the show mode to get ready even if there are media files missing...
+            self.script = None
+            self._editor_request_uuid = ''
+            return
+            ''''''
+            local_media_error = True
+        else:
+            logger.info('Media check OK!')
+        '''
+
+        ''' 20240219 Commented for proto_loop_fruta branch where we do not need to check slaves loading as they are hard coded too and supposed to load correctly
+        try:
+            #### CHECK LOAD PROCESS ON SLAVES... :
+            if self.cm.amimaster:
+                # If we are master, prior to process the script cuelist in local, we check the load process on the slaves...
+                node_ok_list = []
+                node_error_dict = {}
+                logger.info(f'I\'m master. Waiting for slaves to load...')
+                while (len(node_ok_list) + len(node_error_dict)) < len(self.ossia_server.oscquery_slave_devices):
+                    ok_count = 0
+                    for device in self.ossia_server.oscquery_slave_devices:
+                        try:
+                            if self.ossia_server._oscquery_registered_nodes[f'/{device}/engine/status/load'][0].value == 'ERROR':
+                                node_error_dict[device] = self.ossia_server._oscquery_registered_nodes[f'/{device}/engine/comms/subtype'][0].value + self.ossia_server._oscquery_registered_nodes[f'/{device}/engine/comms/data'][0].value
+                                # Reset the status field
+                                self.ossia_server._oscquery_registered_nodes[f'/{device}/engine/status/load'][0].value == ''
+                            elif self.ossia_server._oscquery_registered_nodes[f'/{device}/engine/status/load'][0].value == 'OK':
+                                if device not in node_ok_list:
+                                    logger.info(f'Slave {device} load successfull, OK!')
+                                    # Reset the status field
+                                    self.ossia_server._oscquery_registered_nodes[f'/{device}/engine/status/load'][0].value == ''
+                                    node_ok_list.append(device)
+                        except KeyError:
+                            # a KeyError means that OSC route is not found because the slave is not present in OSC tree
+                            node_error_dict[device] = 'osc'
+                            # Reset the status field
+
+                    time.sleep(0.05)
+
+                if node_error_dict:
+                    # if only media errors we can continue (by now)...
+                    for item in node_error_dict.values():
+                        if item[0:5] != 'media':
+                            # Some slave could not load the project
+                            self.editor_queue.put({'type':'error', 'action':'project_ready', 'action_uuid':self._editor_request_uuid, 'subtype':'slave_errors', 'value':f'Errors loading project on nodes: {node_error_dict}'})
+
+                            self._editor_request_uuid = ''
+                            self.script = None
+                            # if there is any error on a slave different than media missing, we cancel the project loading and show mode change...
+                            return
+                        else:
+                            # Some slave loaded the project with media errors
+                            slave_media_error = True
+
+                # if slaves are correctly loaded (even with missing media), we, master, process now the script cuelist
+                self.initial_cuelist_process(self.script.cuelist)
+
+            else:
+                # If we are slave and everthing is OK till here, we perform the initial process of the script
+                self.initial_cuelist_process(self.script.cuelist)
+        except Exception as e:
+            logger.error(f"Error processing script data. Can't be loaded.")
+            logger.exception(e)
+            if self.cm.amimaster:
+                self.editor_queue.put({'type':'error', 'action':'project_ready', 'action_uuid':self._editor_request_uuid, 'value':"Error processing script data. Can't be loaded."})
+            else:
+                self.ossia_server._oscquery_registered_nodes['/engine/status/load'][0].value = 'ERROR'
+
+                self.ossia_server._oscquery_registered_nodes['/engine/comms/type'][0].value = 'error'
+                self.ossia_server._oscquery_registered_nodes['/engine/comms/action'][0].value = 'project_ready'
+                self.ossia_server._oscquery_registered_nodes['/engine/comms/action_uuid'][0].value = self._editor_request_uuid
+                self.ossia_server._oscquery_registered_nodes['/engine/comms/value'][0].value = "Error processing script data. Can't be loaded."
+
+            self._editor_request_uuid = ''
+            self.script = None
+            return
+        '''
+
+
+        # CHECK PROJECT MAPPINGS
+        ''' 20240219 Commented for proto_loop_fruta branch where we do not need to check mappings as they are hard coded
+        try:
+            if self.check_project_mappings():
+                logger.info('Project mappings check OK!')
+        except Exception as e:
+            logger.exception(f'Wrong configuration on input/output mappings: {e}')
+            if self.cm.amimaster:
+                self.editor_queue.put({'type':'error', 'action':'project_ready', 'action_uuid':self._editor_request_uuid, 'value':'Wrong configuration on input/output mappings'})
+            else:
+                self.ossia_server._oscquery_registered_nodes['/engine/status/load'][0].value = 'ERROR'
+
+                self.ossia_server._oscquery_registered_nodes['/engine/comms/type'][0].value = 'error'
+                self.ossia_server._oscquery_registered_nodes['/engine/comms/subtype'][0].value = 'mappings'
+                self.ossia_server._oscquery_registered_nodes['/engine/comms/action'][0].value = 'project_ready'
+                self.ossia_server._oscquery_registered_nodes['/engine/comms/action_uuid'][0].value = self._editor_request_uuid
+                self.ossia_server._oscquery_registered_nodes['/engine/comms/value'][0].value = 'Wrong configuration on input/output mappings'
+            return    
+        ''' 
diff --git a/dev/CuemsEngine_old.py b/dev/CuemsEngine_old.py
new file mode 100644
index 0000000..19902db
--- /dev/null
+++ b/dev/CuemsEngine_old.py
@@ -0,0 +1,902 @@
+#!/usr/bin/env python3
+
+# %%
+import threading
+import time
+from os import path
+import pyossia as ossia
+from ast import literal_eval
+import xmlschema.exceptions
+
+from cuemsutils.log import Logger
+from cuemsutils.cues import CueList, VideoCue, ActionCue
+from cuemsutils.xml.XmlReaderWriter import XmlReader
+
+from .tools.mtcmaster import libmtcmaster
+from .tools.CuemsDeploy import CuemsDeploy
+from .tools.communicate import hwdiscovery_callback
+
+from .OssiaServer import OssiaServer, MasterOSCQueryConfData, SlaveOSCQueryConfData, PlayerOSCConfData
+
+from .ControllerEngine import ControllerEngine
+
+CUEMS_CONF_PATH = '/etc/cuems/'
+
+
+# %%
+class CuemsEngine(ControllerEngine):
+    
+
+    def __init__(self):
+
+        self.test_running = False
+        self.test_data = None
+        self.test_thread = threading.Thread(target=self.test_thread_function, name='test_thread')
+        self._editor_request_uuid = ''
+
+        # OSSIA OSCQuery server
+        self.ossia_server = OssiaServer(node_id=self.cm.node_conf['uuid'], 
+                                        ws_port=self.cm.node_conf['oscquery_ws_port'], 
+                                        osc_port=self.cm.node_conf['oscquery_osc_port'], 
+                                        master = self.cm.amimaster)
+
+        # DEV: This is a temporary solution to resend signals from main to remote engines
+        # DEV: Status nodes are used in the current implementation to check the status of the engine from the web interface
+        # DEV: Should be substituted by a more robust system based on pynng
+        # Initial OSC nodes to tell ossia to configure
+        OSC_ENGINE_CONF = {
+            '/engine/command/load' : [ossia.ValueType.String, self.load_project_callback],
+            '/engine/command/loadcue' : [ossia.ValueType.String, self.load_cue_callback],
+            '/engine/command/go' : [ossia.ValueType.String, self.go_callback],
+            '/engine/command/gocue' : [ossia.ValueType.String, self.go_cue_callback],
+            '/engine/command/pause' : [ossia.ValueType.Impulse, self.pause_callback],
+            '/engine/command/stop' : [ossia.ValueType.Impulse, self.stop_callback],
+            '/engine/command/resetall' : [ossia.ValueType.String, self.reset_all_callback],
+            '/engine/command/preload' : [ossia.ValueType.String, self.load_cue_callback],
+            '/engine/command/unload' : [ossia.ValueType.String, self.unload_cue_callback],
+            '/engine/command/hwdiscovery' : [ossia.ValueType.Impulse, self.hwdiscovery_callback],
+            '/engine/command/deploy' : [ossia.ValueType.String, self.deploy_callback],
+            '/engine/command/test' : [ossia.ValueType.String, self.test_callback],
+            '/engine/comms/type' : [ossia.ValueType.String, self.comms_callback],
+            '/engine/comms/subtype' : [ossia.ValueType.String, None],
+            '/engine/comms/action' : [ossia.ValueType.String, None],
+            '/engine/comms/action_uuid' : [ossia.ValueType.String, self.action_uuid_callback],
+            '/engine/comms/value' : [ossia.ValueType.String, None],
+            '/engine/comms/data' : [ossia.ValueType.String, None]
+                            }
+
+        self.ossia_server.add_local_nodes(MasterOSCQueryConfData(device_name=self.cm.node_conf['uuid'], dictionary=OSC_ENGINE_CONF))
+
+        try:
+            if self.cm.amimaster:
+                time.sleep(1.5)
+            else:
+                time.sleep(0.5)
+            self.add_nodes_oscquery_devices()
+        except Exception as e:
+            Logger.exception(e)
+
+        # Everything is ready now and should be working, let's run!
+        while not self.stop_requested:
+            time.sleep(0.1)
+
+        self.stop_all_threads()
+
+    def editor_command_callback(self, item):
+        try:
+            self._editor_request_uuid = item['action_uuid']
+        except KeyError:
+            self.error_to_editor(self._editor_request_uuid, "No action uuid submitted")
+            return
+
+        try:
+            if item['type'] not in ['error', 'initial_settings']:
+                self.error_to_editor(self._editor_request_uuid, "Response not recognized")
+                self._editor_request_uuid = ''
+        except KeyError:
+            try:
+                try:
+                    self.assign_nodes_values('command', item)
+                except KeyError as e:
+                    Logger.exception(f"/engine/comms/ parameters not copied because '{e}' does not exist in _oscquery_registered_nodes")
+
+                try:
+                    for device in self.ossia_server.oscquery_slave_devices:
+                        self.ossia_server.oscquery_slave_registered_nodes[f'/{device}/engine/comms/type'][0].value = 'command'
+                        self.ossia_server.oscquery_slave_registered_nodes[f'/{device}/engine/comms/action'][0].value = item['action']
+                        self.ossia_server.oscquery_slave_registered_nodes[f'/{device}/engine/comms/action_uuid'][0].value = item['action_uuid']
+                        self.ossia_server.oscquery_slave_registered_nodes[f'/{device}/engine/comms/value'][0].value = item['value']
+
+                        self.ossia_server.oscquery_slave_registered_nodes[f'/{device}/engine/comms/value'][0].value = '{"cmd": "command", "action": "' + item['action'] + '", "action_uuid": "' + item['action_uuid'] + '", "value": "' + item['value'] + '"}'
+                except KeyError as e:
+                    Logger.exception(f"/engine/comms/ parameters not copied because '{e}' does not exist in oscquery_slave_registered_nodes")
+
+                if item['action'] not in ['project_ready', 'hw_discovery', 'project_deploy']:
+                    self.error_to_editor(self._editor_request_uuid, "Command not recognized")
+                    self._editor_request_uuid = ''
+                else:
+                    if item['action'] == 'project_ready':
+                        self._editor_request_uuid = item['action_uuid']
+                        Logger.info(f'Load project command received via WS. project: {item["value"]} request: {self._editor_request_uuid}')
+
+                        self.load_project_callback(value = item['value'])
+            
+                    elif item['action'] == 'hw_discovery':
+                        self._editor_request_uuid = item['action_uuid']
+                        Logger.info(f'HW discovery command received via WS. project: {item["value"]} request: {self._editor_request_uuid}')
+                        try:
+                            hwdiscovery_callback()
+                        except:
+                            self.editor_queue.put({'type':'error', 'action':'hw_discovery', 'action_uuid':self._editor_request_uuid, 'value':'HW discovery failed, check logs.'})
+                            Logger.error(f'HW discovery failed after editor request id: {self._editor_request_uuid}')
+                            self._editor_request_uuid = ''
+                        else:
+                            self.editor_queue.put({'type':'hw_discovery', 'action_uuid':self._editor_request_uuid, 'value':'OK'})
+                            self._editor_request_uuid = ''
+
+                    elif item['action'] == 'project_deploy':
+                        self._editor_request_uuid = item['action_uuid']
+                        Logger.info(f'Deploy command received via WS. Editor request uuid: {self._editor_request_uuid}')
+                        self.deploy_callback(value = item['value'])
+
+            except KeyError:
+                Logger.exception(f'Not recognized communications with WSServer. Queue msg received: {item}')
+
+    #########################################################
+
+    #########################################################
+    # Ordered stopping
+    def stop_all_threads(self):
+
+        try:
+            self.ossia_server.stop()
+            self.ossia_server.join()
+            Logger.info(f'Ossia server thread finished')
+        except Exception as e:
+            Logger.exception(f'Exception raised when stopping Ossia server: {e}')
+
+
+    #########################################################
+    # Usefull callbacks and functions
+    def try_deploy(self, project_name='', tag_name='project'):
+        if project_name:
+            try:
+                deploy_manager = CuemsDeploy(
+                    library_path=self.cm.library_path, master_hostname=None,
+                    log_file='/tmp/cuems_rsync.log'
+                )
+
+                if deploy_manager.sync(path.join(self.cm.tmp_path, f'rsync_request_{project_name}_{tag_name}.log')):
+                    # If deploy is successful...
+                    Logger.info(f'Deploy sync successful from master')
+
+                    self.set_node_value('/engine/status', 'deploy', 'OK')
+                    self.assign_nodes_values({
+                        'type': 'OK',
+                        "action": 'project_deploy',
+                        'action_uuid': self._editor_request_uuid,
+                        'value': 'Deploy succesful!'
+                    })
+                else:
+                    # If deploy is NOT succesful...
+                    Logger.error(f'Deploy sync returned errors. {deploy_manager.errors}')
+                    self.set_node_value('/engine/status', 'deploy', 'ERROR')
+                    self.assign_nodes_values({
+                        'type': 'error',
+                        'action': 'project_deploy',
+                        'action_uuid': self._editor_request_uuid,
+                        'value': deploy_manager.errors
+                    })
+            except Exception as e:
+                # If deploy raised any exception...
+                Logger.error(f'Deploy raised an exception {e} after master request id : {self._editor_request_uuid}')
+                self.set_node_value('/engine/status', 'deploy', 'ERROR')
+                self.assign_nodes_values({
+                    'type': 'error',
+                    'action': 'project_deploy',
+                    'action_uuid': self._editor_request_uuid,
+                    'value': 'Local deploy fail!'
+                })
+
+            self.deploy_requests_reset(project_name = project_name, tag_name = tag_name)
+
+    ########################################################
+    # OSC devices usefull methods
+    def add_nodes_oscquery_devices(self): # DEV looks like a ConfigManager or OssiaServer method
+        if self.cm.amimaster:
+            Logger.info(f'----- Master node trying to add slave nodes to OSCQuery tree -----')
+
+            # Create OSC remote device routes for each slave node
+            for name, node in self.cm.avahi_monitor.listener.osc_services.items():
+                decoded_uuid = node.properties[b'uuid'].decode('utf8')
+                if decoded_uuid != self.cm.node_conf['uuid']:
+                    # Select the OSC out port number for our new slave node OSC
+                    udp_port = self.cm.osc_port_index['start']
+                    while udp_port in self.cm.osc_port_index['used']:
+                        udp_port += 2
+
+                    self.cm.osc_port_index['used'].append(udp_port)
+
+                    self.ossia_server.add_slave_nodes(
+                        SlaveOSCQueryConfData(
+                            device_name = decoded_uuid, 
+                            host = node.parsed_addresses()[0], 
+                            ws_port = int(node.port), 
+                            osc_port = udp_port
+                        )
+                    )
+                
+                    Logger.info(f'Loaded OSCQuery tree for slave node {decoded_uuid}\n    ip : {node.parsed_addresses()[0]} ws : {node.port} udp : {udp_port}')
+
+            Logger.info(f'----- All slave nodes added to the OSC tree in some way -----')
+        else:
+            Logger.info(f'----- Slave node trying to add master node to OSCQuery tree -----')
+
+            # Create OSC remote device routes for each slave node
+            for name, node in self.cm.avahi_monitor.listener.osc_services.items():
+                if node.properties[b'node_type'] == b'master':
+                    # Select the OSC out port number for our new slave node OSC
+                    udp_port = self.cm.osc_port_index['start']
+                    while udp_port in self.cm.osc_port_index['used']:
+                        udp_port += 2
+
+                    self.cm.osc_port_index['used'].append(udp_port)
+
+                    decoded_uuid = node.properties[b'uuid'].decode('utf8')
+                    self.ossia_server.add_master_node(
+                        SlaveOSCQueryConfData(
+                            device_name = decoded_uuid, 
+                            host = node.parsed_addresses()[0], 
+                            ws_port = int(node.port), 
+                            osc_port = udp_port
+                        )
+                    )
+                
+                    Logger.info(f'Loaded OSCQuery tree for master node {decoded_uuid}\n    ip : {node.parsed_addresses()[0]} ws : {node.port} udp : {udp_port}')
+                    break
+
+            Logger.info(f'----- MASTER node added to the OSC tree in some way -----')
+
+    ########################################################
+
+    ########################################################
+    # OSC messages handlers
+    def load_project_callback(self, **kwargs):
+        try:
+            if kwargs['value'][-1] == '*':
+                # if argument is marked is already treated...
+                return
+            else:
+                # Mark back our load command on slaves
+                self.ossia_server._oscquery_registered_nodes['/engine/command/load'][0].value = kwargs['value'] + '*'
+        except IndexError:
+            return
+
+        Logger.info(f'PROJECT READY/LOAD CALLBACK! -> PROJECT : {kwargs["value"]}')
+
+        # As we only allow one project in show mode we dismantle whatever other was loaded previously to this one...
+        Logger.info(f'Unloading previous content on video players...')
+        self.unload_video_devs()
+
+        # Init working stuff...
+        local_media_error = False
+        slave_media_error = False
+
+        # Call OSC load on all slaves:
+        # by the moment we are using the direct /engine/command/load callback on the slaves
+        if self.cm.amimaster:
+            device_values = {
+                'action': 'project_ready',
+                'action_uuid': self._editor_request_uuid,
+                'value': kwargs['value']
+            }
+            for device in self.ossia_server.oscquery_slave_devices.keys():
+                try:
+                    self.assign_slave_nodes_values(device, 'command', device_values)
+
+                    Logger.info(f'Calling load project {kwargs["value"]} via OSC on slave node {device}')
+                    self.set_slave_node_value(device, '/engine/command', 'load', kwargs['value'])
+                except Exception as e:
+                    Logger.exception(e)
+        else:
+            # Let's request a deploy of the project files
+            self.log_deploy_request(project_name = kwargs['value'], tag_name = 'project')
+            self.try_deploy(project_name=kwargs['value'], tag_name='project')
+
+        # If there was already an script we discard it and restart the run engine
+        if self.script:
+            if self.cm.amimaster:
+                libmtcmaster.MTCSender_stop(self.mtcmaster)
+            self.disarm_all()
+            self.armedcues.clear()
+            self.ongoing_cue = None
+            self.next_cue_pointer = None
+            self.go_offset = 0
+            self.script = None
+
+        # LOAD PROJECT SETTINGS
+        try:
+            self.cm.load_project_settings(kwargs["value"])
+            # Logger.info(self.cm.project_conf)
+        except FileNotFoundError:
+            '''Not loading project settings yet, so no need to check any further '''
+            Logger.info(f'Project settings file not found. Adopting defaults.')
+        except:
+            Logger.info(f'Project settings error while loading. Adopting defaults.')
+
+        # LOAD PROJECT MAPPINGS
+        try:
+            self.cm.load_project_mappings(kwargs["value"])
+            Logger.info('Project mappings load OK!')
+            # Logger.info(self.cm.project_mappings)
+        except Exception as e:
+            Logger.info(f'Exception raised while loading project mappings: {type(e)} {e}')
+            if self.cm.amimaster:
+                self.editor_queue.put({'type':'error', 'action':'project_ready', 'action_uuid':self._editor_request_uuid, 'value':'Mapping files error while loading.'})
+            else:
+                Logger.info(f'Project mappings file problem. Noted to get it from master.')
+                self.set_node_value('/engine/status', 'load', 'ERROR')
+                self.assign_nodes_values({
+                    'type': 'error',
+                    'subtype': 'mappings',
+                    'action': 'project_ready',
+                    'action_uuid': self._editor_request_uuid,
+                    'value': 'Mapping files error while loading.'
+                })
+            return
+
+        # THIS LOADS THE SCRIPT
+        try:
+            self.read_script(kwargs['value'])
+        except FileNotFoundError:
+            Logger.error('Project script file not found')
+            if self.cm.amimaster:
+                self.editor_queue.put({'type':'error', 'action':'project_ready', 'action_uuid':self._editor_request_uuid, 'value':'Project script file not found'})
+                self._editor_request_uuid = ''
+            else:
+                Logger.info(f'Project script not found. Noted to get it from master.')
+                self.set_node_value('/engine/status', 'load', 'ERROR')
+                self.assign_nodes_values({
+                    'type': 'error',
+                    'subtype': 'script_file_not_found',
+                    'action': 'project_ready',
+                    'action_uuid': self._editor_request_uuid,
+                    'value': 'Project script file not found'
+                })
+        except xmlschema.exceptions.XMLSchemaException as e:
+            Logger.exception(f'XML error: {e}')
+            if self.cm.amimaster:
+                self.editor_queue.put({'type':'error', 'action':'project_ready', 'action_uuid':self._editor_request_uuid, 'value':'Script XML parsing error'})
+                self._editor_request_uuid = ''
+            else:
+                Logger.info(f'Project script XML exception.')
+                self.set_node_value('/engine/status', 'load', 'ERROR')
+                self.assign_nodes_values({
+                    'type': 'error',
+                    'subtype': 'xml',
+                    'action': 'project_ready',
+                    'action_uuid': self._editor_request_uuid,
+                    'value': 'Script XML parsing error'
+                })
+
+        except Exception as e:
+            Logger.error(f'Project script could not be loaded {e}')
+            if self.cm.amimaster:
+                self.editor_queue.put({'type':'error', 'action':'project_ready', 'action_uuid':self._editor_request_uuid, 'value':'Script could not be loaded'})
+                self._editor_request_uuid = ''
+            else:
+                Logger.info(f'Project script could not be loaded. Check logs.')
+                self.set_node_value('/engine/status', 'load', 'ERROR')
+                self.assign_nodes_values({
+                    'type': 'error',
+                    'subtype': 'error',
+                    'action': 'project_ready',
+                    'action_uuid': self._editor_request_uuid,
+                    'value': 'Script could not be loaded'
+                })        
+        
+        if self.script is None:
+            Logger.warning(f'Script could not be loaded. Check consistency and retry please.')
+            if self.cm.amimaster:
+                self.editor_queue.put({'type':'error', 'action':'project_ready', 'action_uuid':self._editor_request_uuid, 'value':'Script could not be loaded'})
+            else:
+                Logger.info(f'Project script could not be loaded. Check logs.')
+                
+                self.set_node_value('/engine/status', 'load', 'ERROR')
+                self.assign_nodes_values({
+                    'type': 'error',
+                    'subtype': 'error',
+                    'action': 'project_ready',
+                    'action_uuid': self._editor_request_uuid,
+                    'value': 'Script could not be loaded'
+                })
+
+            self._editor_request_uuid = ''
+            return
+        else:
+            Logger.info('Project script loaded OK!')
+            self.script.unix_name = kwargs['value']
+
+        # master or slave, for the moment do the processing, (asume everithin loaded ok)
+        self.initial_cuelist_process(self.script.cuelist)
+
+        # Then we force-arm the first item in the main list
+        self.script.cuelist.contents[0].arm(self.cm, self.ossia_server, self.armedcues)
+        # And get it ready to wait a GO command
+        self.next_cue_pointer = self.script.cuelist.contents[0]
+        self.ossia_server._oscquery_registered_nodes['/engine/status/nextcue'][0].value = self.next_cue_pointer.uuid
+
+        # Start MTC!
+        if self.cm.amimaster:
+            libmtcmaster.MTCSender_play(self.mtcmaster)
+
+        if local_media_error:
+            Logger.info(f'Project loaded with local media errors...')
+
+        if self.cm.amimaster:
+            if not local_media_error:
+                if not slave_media_error:
+                    self.editor_queue.put({'type':'project_ready', 'action_uuid':self._editor_request_uuid, 'value':'OK'})
+                    Logger.info(f'Project loaded OK.')
+                else:
+                    Logger.warning(f'Some slaves could not load all their media...')
+                    self.editor_queue.put({'type':'project_ready', 'action_uuid':self._editor_request_uuid, 'value':'OK_deploy_needed'})
+            else:
+                self.editor_queue.put({'type':'project_ready', 'action_uuid':self._editor_request_uuid, 'value':'OK_missing_media'})
+        else:
+            self.set_node_value('/engine/status', 'load', 'OK')
+            self.assign_nodes_values({
+                'type': 'OK',
+                'action': 'project_ready',
+                'action_uuid': self._editor_request_uuid,
+                'value': 'OK'
+            })
+
+        # Everything went OK while loading the project locally...
+        Logger.info(f'Project load COMPLETED!')
+
+        self.set_show_lock_file()
+
+        self._editor_request_uuid = ''
+
+    def load_cue_callback(self, **kwargs):
+        Logger.info(f'LOAD CUE CALLBACK! -> CUE : {kwargs["value"]}')
+
+        cue_to_load = self.script.find(kwargs['value'])
+
+        if cue_to_load != None:
+            if cue_to_load not in self.armedcues:
+                cue_to_load.arm(self.cm, self.ossia_server, self.armedcues)
+
+    def unload_cue_callback(self, **kwargs):
+        Logger.info(f'UNLOAD CUE CALLBACK! -> CUE : {kwargs["value"]}')
+
+        cue_to_unload = self.script.find(kwargs['value'])
+
+        if cue_to_unload != None:
+            if cue_to_unload in self.armedcues:
+                cue_to_unload.disarm(self.ossia_server)
+
+    def go_cue_callback(self, **kwargs):
+        Logger.info(f'GO CUE CALLBACK! -> ARGS : {kwargs["value"]}')
+
+        cue_to_go = self.script.find(kwargs['value'])
+
+        if cue_to_go is None:
+            Logger.error(f'Cue {kwargs["value"]} does not exist.')
+        else:
+            if cue_to_go not in self.armedcues:
+                Logger.error(f'Cue {kwargs["value"]} not prepared. Prepare it first.')
+            else:
+                Logger.info(f'Cue {kwargs["value"]} in armedcues list. Ready!')
+                Logger.info(f'OSC GO! -> CUE : {cue_to_go.uuid}')
+
+                cue_to_go.go(self.ossia_server, self.mtclistener)
+
+                self.ongoing_cue = cue_to_go
+                Logger.info(f'Current Cue: {self.ongoing_cue}')
+
+    def go_callback(self, **kwargs):
+        try:
+            if kwargs['value'][-1] == '*':
+                return
+        except IndexError:
+            pass
+
+        # Mark back our load command on slaves
+        if self.ossia_server._oscquery_registered_nodes[f'/engine/command/go'][0].value and self.ossia_server._oscquery_registered_nodes[f'/engine/command/go'][0].value[-1] != '*':
+            self.ossia_server._oscquery_registered_nodes[f'/engine/command/go'][0].value = kwargs['value'] + '*'
+
+        Logger.info(f'GO CALLBACK! -> ARGS : {kwargs["value"]}')
+
+        if self.script:
+            # Call OSC go on all slaves:
+            # by the moment we are using the direct /engine/command/go callback on the slaves
+            if self.cm.amimaster:
+                for device in self.ossia_server.oscquery_slave_devices.keys():
+                    try:
+                        self.assign_slave_nodes_values(device, {
+                            'type': 'command',
+                            'action': 'go',
+                            'action_uuid': self._editor_request_uuid,
+                            'value': ''
+                        })
+
+                        Logger.info(f'Calling GO CALLBACK via OSC on slave node {device}')
+                        self.set_slave_node_value(device, '/engine/command', 'go', 'go')
+                    except Exception as e:
+                        Logger.exception(e)
+
+            if not self.ongoing_cue:
+                cue_to_go = self.script.cuelist.contents[0]
+            else:
+                if self.next_cue_pointer:
+                    cue_to_go = self.next_cue_pointer
+                else:
+                    Logger.info(f'Reached end of script. Last cue was {self.ongoing_cue.__class__.__name__} {self.ongoing_cue.uuid}')
+                    self.ongoing_cue = None
+                    self.go_offset = 0
+                    self.script.cuelist.contents[0].arm(self.cm, self.ossia_server, self.armedcues)
+                    return
+
+            if cue_to_go not in self.armedcues:
+                Logger.error(f'Trying to go a cue that is not yet loaded. CUE : {cue_to_go.uuid}')
+            else:
+                self.ongoing_cue = cue_to_go
+                self.ongoing_cue.go(self.ossia_server, self.mtclistener)
+                self.next_cue_pointer = self.ongoing_cue.get_next_cue()
+                self.go_offset = self.mtclistener.main_tc.milliseconds
+
+                # OSC Query cues status notification
+                self.set_node_value('/engine/status', 'currentcue', self.ongoing_cue.uuid)
+                if self.next_cue_pointer:
+                    self.set_node_value('/engine/status', 'nextcue', self.next_cue_pointer.uuid)
+                else:
+                    self.set_node_value('/engine/status', 'nextcue', "")
+                self.set_node_value('/engine/status', 'running', 1)
+        else:
+            Logger.warning('No script loaded, cannot process GO command.')
+
+    def pause_callback(self, **kwargs):
+        Logger.info(f'PAUSE CALLBACK! -> ARGS : {kwargs["value"]}')
+        try:
+            if self.cm.amimaster:
+                libmtcmaster.MTCSender_pause(self.mtcmaster)
+            self.ossia_server._oscquery_registered_nodes['/engine/status/running'][0].value = int(not self.ossia_server._oscquery_registered_nodes['/engine/status/running'][0].value)
+        except:
+            Logger.info('NO MTCMASTER ASSIGNED!')
+
+    def stop_callback(self, **kwargs):
+        Logger.info(f'STOP CALLBACK! -> ARGS : {kwargs["value"]}')
+        try:
+            if self.cm.amimaster:
+                libmtcmaster.MTCSender_stop(self.mtcmaster)
+            self.go_offset = 0
+            self.ossia_server._oscquery_registered_nodes['/engine/status/running'][0].value = 0
+        except:
+            Logger.info('NO MTCMASTER ASSIGNED!')
+
+    def reset_all_callback(self, **kwargs):
+        try:
+            if kwargs['value'][-1] == '*':
+                return
+        except IndexError:
+            pass
+
+        # Mark back our load command on slaves
+        if self.ossia_server._oscquery_registered_nodes[f'/engine/command/resetall'][0].value and self.ossia_server._oscquery_registered_nodes[f'/engine/command/resetall'][0].value[-1] != '*':
+            self.ossia_server._oscquery_registered_nodes[f'/engine/command/resetall'][0].value = kwargs['value'] + '*'
+
+        Logger.info(f'RESET ALL CALLBACK! -> ARGS : {kwargs["value"]}')
+        
+        # delete show.lock file
+        self.remove_show_lock_file()
+
+        # Call OSC go on all slaves:
+        # by the moment we are using the direct /engine/command/go callback on the slaves
+        if self.cm.amimaster:
+            for device in self.ossia_server.oscquery_slave_devices.keys():
+                try:
+                    self.assign_slave_nodes_values(device, {
+                        'type': 'command',
+                        'action': 'resetall',
+                        'action_uuid': self._editor_request_uuid,
+                        'value': ''
+                    })
+
+                    Logger.info(f'Calling RESETALL CALLBACK via OSC on slave node {device}')
+                    self.set_slave_node_value(device, '/engine/command', 'resetall', 'resetall')
+                except Exception as e:
+                    Logger.exception(e)
+
+        try:
+            if self.cm.amimaster:
+                libmtcmaster.MTCSender_stop(self.mtcmaster)
+            self.disarm_all()
+            self.armedcues.clear()
+            self.disconnect_video_devs()
+            self.unload_video_devs()
+            self.ongoing_cue = None
+            self.go_offset = 0
+
+            self.ossia_server._oscquery_registered_nodes['/engine/status/running'][0].value = 0
+
+            if self.script:
+                self.script.cuelist.contents[0].arm(self.cm, self.ossia_server, self.armedcues)
+                self.next_cue_pointer = self.script.cuelist.contents[0]
+                # DEV: Repeated line below for nextcue?
+                self.ossia_server._oscquery_registered_nodes['/engine/status/nextcue'][0].value = self.next_cue_pointer.uuid
+
+                self.ossia_server._oscquery_registered_nodes['/engine/status/currentcue'][0].value = ""
+                self.ossia_server._oscquery_registered_nodes['/engine/status/nextcue'][0].value = self.script.cuelist.contents[0].uuid
+            if self.cm.amimaster:
+                libmtcmaster.MTCSender_play(self.mtcmaster)
+
+        except Exception as e:
+            Logger.exception(e)
+
+    def deploy_callback(self, **kwargs):
+        try:
+            if kwargs['value'][-1] == '*':
+                return
+        except IndexError:
+            pass
+
+        # Mark back our load command on slaves
+        if self.ossia_server._oscquery_registered_nodes[f'/engine/command/deploy'][0].value and self.ossia_server._oscquery_registered_nodes[f'/engine/command/deploy'][0].value[-1] != '*':
+            self.ossia_server._oscquery_registered_nodes[f'/engine/command/deploy'][0].value = kwargs['value'] + '*'
+
+        Logger.info(f'DEPLOY CALLBACK! -> ARGS : {kwargs["value"]}')
+
+        if not self.script and self.cm.amimaster:
+            # First the user should load/ready a project to try to deploy it... ERROR to UI!
+            self.editor_queue.put({'type':'error', 'action':'project_deploy', 'action_uuid':self._editor_request_uuid, 'value':'Project not yet loaded!'})
+            Logger.error(f'Deploy request failed because project is not yet loaded, request id: {self._editor_request_uuid}')
+            self._editor_request_uuid = ''
+            return
+        
+        try:
+            # Check local needs for script media
+            media_fail_list = self.script_media_check()
+        except Exception as e:
+            Logger.exception(f'Exception raised while performing media check: {type(e)} {e}')
+        
+        if media_fail_list:
+            if self.cm.amimaster:
+                # If local media check failed and I'm master... ERROR to UI!
+                self.editor_queue.put({'type':'error', 'action':'project_deploy', 'action_uuid':self._editor_request_uuid, 'value':'Master local media check failed, check logs.'})
+                Logger.error(f'Master local media check failed after deploy ws request, request id: {self._editor_request_uuid}')
+            else:
+                deploy_request_list = []
+                for item in list(media_fail_list.keys()):
+                    deploy_request_list.append('/media/' + item + '\n')
+
+                self.log_deploy_request(project_name=self.script.unix_name, tag_name='media', file_names=deploy_request_list)
+            
+                # If local media check failed and I'm slave... Try to deploy from master...
+                try:
+                    self.try_deploy(project_name=self.script.unix_name, tag_name='media')
+                except Exception as e:
+                    Logger.exception(f'Exception raised while performing deploy: {e}')
+                    self.set_node_value('/engine/status', 'deploy', 'ERROR')
+                    self.assign_nodes_values({
+                        'type': 'error',
+                        'action': 'project_deploy',
+                        'action_uuid': self._editor_request_uuid,
+                        'value': 'Deploy raised and exception on this slave!'
+                    })
+                else:
+                    self.set_node_value('/engine/status', 'deploy', 'OK')
+                    self.assign_nodes_values({
+                        'type': 'OK',
+                        'action': 'project_deploy',
+                        'action_uuid': self._editor_request_uuid,
+                        'value': 'Deploy went OK on this slave!'
+                    })
+
+        else:
+            if self.cm.amimaster:
+                ''' LAUNCH SLAVES DEPLOYS '''
+                # Call OSC go on all slaves:
+                # by the moment we are using the direct /engine/command/deploy callback on the slaves
+                device_values = {
+                    'action': 'deploy',
+                    'action_uuid': self._editor_request_uuid,
+                    'value': ''
+                }
+                for device in self.ossia_server.oscquery_slave_devices.keys():
+                    try:
+                        self.ossia_server.oscquery_slave_registered_nodes[f'/{device}/engine/comms/type'][0].value = 'command'
+                        self.ossia_server.oscquery_slave_registered_nodes[f'/{device}/engine/comms/action'][0].value = 'deploy'
+                        self.ossia_server.oscquery_slave_registered_nodes[f'/{device}/engine/comms/action_uuid'][0].value = self._editor_request_uuid
+                        self.ossia_server.oscquery_slave_registered_nodes[f'/{device}/engine/comms/value'][0].value = ''
+
+                        Logger.info(f'Calling DEPLOY via OSC on slave node {device}')
+                        self.ossia_server.oscquery_slave_registered_nodes[f'/{device}/engine/command/deploy'][0].value = self.script.unix_name
+                    except Exception as e:
+                        Logger.exception(e)
+
+                ''' CHECK SLAVES DEPLOYS '''
+                # Check slaves deploy return
+                node_error_dict = {}
+                node_ok_list = []
+                Logger.info(f'I\'m master. Waiting for slaves to deploy...')
+                while len(node_error_dict) + len(node_ok_list) < len(self.ossia_server.oscquery_slave_devices):
+                    ok_count = 0
+                    for device in self.ossia_server.oscquery_slave_devices:
+                        if self.ossia_server._oscquery_registered_nodes[f'/{device}/engine/status/deploy'][0].value == 'ERROR':
+                            node_error_dict[device] = self.ossia_server._oscquery_registered_nodes[f'/{device}/engine/comms/value'][0].value
+                            # Reset the status field
+                            self.ossia_server._oscquery_registered_nodes[f'/{device}/engine/status/deploy'][0].value == ''
+                        elif self.ossia_server._oscquery_registered_nodes[f'/{device}/engine/status/deploy'][0].value == 'OK':
+                            Logger.info(f'Slave {device} deploy successfull, OK!')
+                            # Reset the status field
+                            self.ossia_server._oscquery_registered_nodes[f'/{device}/engine/status/deploy'][0].value == ''
+                            node_ok_list.append(device)
+
+                    time.sleep(0.05)
+
+                if node_error_dict:
+                    # Some slave could not load the project
+                    Logger.error(f'Deploy failed in some slave node. Editor request id: {self._editor_request_uuid} Node errors: {node_error_dict}')
+                    self.editor_queue.put({'type':'error', 'action':'project_deploy', 'action_uuid':self._editor_request_uuid, 'value':f'Errors deploying on nodes: {node_error_dict}'})
+                else:
+                    Logger.info(f'Deploy process completed succesfully on all slave nodes...')
+                    self.editor_queue.put({'type':'project_deploy', 'action_uuid':self._editor_request_uuid, 'value':'OK'})
+
+            else:
+                # Deploy is not needed on this slave...
+                Logger.info(f'Deploy requested from master but it is not needed on this slave')
+
+                self.ossia_server._oscquery_registered_nodes['/engine/status/deploy'][0].value = 'OK'
+
+                self.assign_nodes_values({
+                    'type': 'OK',
+                    'action': 'project_deploy',
+                    'action_uuid': self._editor_request_uuid,
+                    'value': 'Deploy not needed on this slave!'
+                })
+
+        self._editor_request_uuid = ''
+
+    def comms_callback(self, **kwargs):
+        Logger.info(f'COMMS CALLBACK! -> ARGS : {kwargs["value"]}')
+
+        if self.cm.amimaster:
+            for device in self.ossia_server.oscquery_slave_devices:
+                Logger.debug(f'COMMS CALLBACK: {kwargs["value"]}\ntype : {self.ossia_server.oscquery_slave_registered_nodes[f"/{device}/engine/comms/type"][0].value} // '
+                            + f'action : {self.ossia_server.oscquery_slave_registered_nodes[f"/{device}/engine/comms/action"][0].value} // '
+                            + f'action_uuid : {self.ossia_server.oscquery_slave_registered_nodes[f"/{device}/engine/comms/action_uuid"][0].value} // '
+                            + f'value : {self.ossia_server.oscquery_slave_registered_nodes[f"/{device}/engine/comms/value"][0].value}')
+        else:
+            Logger.debug(
+                f'COMMS CALLBACK: {kwargs["value"]}\ntype : {self.ossia_server._oscquery_registered_nodes["/engine/comms/type"][0].value} // '
+                    + f'action : {self.ossia_server._oscquery_registered_nodes["/engine/comms/action"][0].value} // '
+                    + f'action_uuid : {self.ossia_server._oscquery_registered_nodes["/engine/comms/action_uuid"][0].value} // '
+                    + f'value : {self.ossia_server._oscquery_registered_nodes["/engine/comms/value"][0].value}'
+            )
+
+            if self.ossia_server._oscquery_registered_nodes["/engine/comms/type"][0].value == 'command' and self.ossia_server._oscquery_registered_nodes["/engine/comms/action"][0].value == 'go':
+                self.ossia_server._oscquery_registered_nodes["/engine/comms/action"][0].value == 'command_done'
+                self.ossia_server._oscquery_registered_nodes["/engine/comms/action"][0].value == 'go_done'
+                self.go_callback()
+
+    def action_uuid_callback(self, **kwargs):
+        self._editor_request_uuid = kwargs['value']
+
+    def test_callback(self, **kwargs):
+        Logger.info(f'TEST CALLBACK! -> ARGS : {kwargs["value"]}')
+
+        '''OSC callback for internal test porpouses'''
+        self.test_data = kwargs['value']
+
+        if self.cm.amimaster:
+            try:
+                self.editor_command_callback(item=literal_eval(self.test_data))
+            except Exception as e:
+                Logger.exception(f'Exception raised in test_thread: {e}')
+        else:
+            try:
+                d = literal_eval(self.test_data)
+                d['type'] = 'test'
+                self.assign_nodes_values(d)
+            except Exception as e:
+                Logger.exception(f'Exception raised in test_thread: {e}')
+
+    def test_thread_function(self):
+        try:
+            self.editor_command_callback(item=literal_eval(self.test_data))
+        except Exception as e:
+            Logger.exception(f'Exception raised in test_thread: {e}')
+
+    ########################################################
+
+    ########################################################
+    # Script treating methods
+    def script_media_check(self):
+        '''
+        Checks for all the media files referred in the script.
+        Returns the list of those which were not found in the media library.
+        '''
+        if self.cm.amimaster:
+            media_list = self.script.get_media()
+        else:
+            media_list = self.script.get_own_media(config=self.cm)
+
+        for key, value in media_list.copy().items():
+            if path.isfile(path.join(self.cm.library_path, 'media', key)):
+                media_list.pop(key)
+
+        if media_list:
+            string = f'These media files could not be found:'
+            for filename, cue in media_list.items():
+                string += f'\n{type(cue)} : {filename} : cue_uuid : {cue.uuid}'
+            Logger.error(string)
+
+        return media_list
+        
+    def initial_cuelist_process(self, cuelist, caller = None):
+        ''' 
+        Review all the items recursively to update target uuids and objects
+        and to load all the "loaded" flagged
+        '''
+        try:
+            for index, item in enumerate(cuelist.contents):
+                if item.check_mappings(self.cm):
+                    if isinstance(item, VideoCue) and item._local:
+                        Logger.debug(f'{item.outputs}')
+                        try:
+                            for output in item.outputs:
+                                # TO DO : add support for multiple outputs
+                                video_player_id = self.cm.get_video_player_id(output['output_name'][37:])
+                                Logger.debug(f'video player id: {video_player_id}')
+                                item._player = self._video_players[video_player_id]['player']
+                                item._osc_route = self._video_players[video_player_id]['route']
+                        except Exception as e:
+                            Logger.exception(e)
+                            raise e
+                else:
+                    raise Exception(f"Cue outputs badly assigned in cue : {item.uuid}")
+
+                if item.loaded and not item in self.armedcues and item._local:
+                    item.arm(self.cm, self.ossia_server, self.armedcues, init = True)
+
+                if item.target is None or item.target == "":
+                    if (index + 1) == len(cuelist.contents):
+                        '''
+                        If the item is the last in the cuelist we leave the
+                        target fields as None
+                        '''
+                        item.target = None
+                        item._target_object = None
+                    else:
+                        item.target = cuelist.contents[index + 1].uuid
+                        item._target_object = cuelist.contents[index + 1]
+                else:
+                    item._target_object = self.script.find(item.target)
+
+                if isinstance(item, CueList):
+                    self.initial_cuelist_process(item, cuelist)
+                elif isinstance(item, ActionCue):
+                    item._action_target_object = self.script.find(item.action_target)
+
+        except Exception as e:
+            Logger.error(f'Error arming cuelist : {cuelist.uuid} : {e}')
+            raise
+    
+    # DEV: This block of methods probably should be moved to the OssiaServer class
+    def assign_nodes_values(self, value_dict: dict, path: str = '/engine/comms') -> None:
+        for k,v in value_dict.items():
+            self.set_node_value(path, k, v)
+    
+    def assign_slave_nodes_values(self, device, value_dict: dict, path: str = 'engine/comms') -> None:
+        for k,v in value_dict.items():
+            self.set_slave_node_value(device, path, k, v)
+
+    def set_node_value(self, path: str, key: str, value) -> None:
+        self.ossia_server._oscquery_registered_nodes[f'{path}/{key}'][0].value = value
+
+    def set_slave_node_value(self, device: str, path: str, key: str, value) -> None:
+        self.ossia_server.oscquery_slave_registered_nodes[f'/{device}/{path}/{key}'][0].value = value
+
+    ########################################################
diff --git a/dev/NodeAudioPlayers.py b/dev/NodeAudioPlayers.py
new file mode 100644
index 0000000..907ca96
--- /dev/null
+++ b/dev/NodeAudioPlayers.py
@@ -0,0 +1,15 @@
+class NodeAudioPlayers():
+    # class to group  al the audio players in a node
+
+    def __init__(self, audioplayer_settings):
+        #initialize array to store the player with the number of audio cards we have ( no more players than audio outputs for the moment)
+        self.aplayer=[None]*audioplayer_settings["audio_cards"]
+        #start a remote controller for each audio output (could be multiple channels), it will controll it own player
+        for i, v in enumerate(self.aplayer):
+            self.aplayer[i] = AudioPlayerRemote(audioplayer_settings["instance"][i]["osc_in_port"], i, audioplayer_settings["path"])
+    
+    def __getitem__(self, subscript):
+        return self.aplayer[subscript]
+
+    def len(self):
+        return len(self.aplayer)
diff --git a/src/cuems/NodeControl.score b/dev/NodeControl.score
similarity index 100%
rename from src/cuems/NodeControl.score
rename to dev/NodeControl.score
diff --git a/dev/NodeVideoPlayers.py b/dev/NodeVideoPlayers.py
new file mode 100644
index 0000000..0a261cb
--- /dev/null
+++ b/dev/NodeVideoPlayers.py
@@ -0,0 +1,11 @@
+class NodeVideoPlayers():
+    def __init__(self, videoplayer_settings):
+        self.vplayer=[None]*videoplayer_settings["outputs"]
+        for i, v in enumerate(self.vplayer):
+            self.vplayer[i] = VideoPlayerRemote(videoplayer_settings["instance"][i]["osc_in_port"], i, videoplayer_settings["path"])
+    
+    def __getitem__(self, subscript):
+        return self.vplayer[subscript]
+
+    def len(self):
+        return len(self.vplayer)
diff --git a/dev/OssiaServer_old.py b/dev/OssiaServer_old.py
new file mode 100644
index 0000000..3eae4fc
--- /dev/null
+++ b/dev/OssiaServer_old.py
@@ -0,0 +1,362 @@
+#import pyossia as ossia
+import pyossia as ossia
+import time
+import threading
+from queue import Queue
+
+#from VideoPlayer import NodeVideoPlayers
+#from AudioPlayer import NodeAudioPlayers
+from cuemsutils.log import Logger
+
+''' NOT IMPLEMENTED YET
+class LocalOSCQDevice():
+    def __init__(self, name = 'LocalOSCQDevice', ws_port=9090, osc_port=9091, log=False):
+        self._name = name
+        self._ws_port = ws_port
+        self._osc_port = osc_port
+        self._device = ossia.LocalDevice(self.name)
+        self._device.create_oscquery_server(self.osc_port, self.ws_port, log)
+        Logger.info(f'Local OscQuery device opened with ports: WS {ws_port} OSC {osc_port}')
+
+        self.nodes = {}
+        self.queue = ossia.MessageQueue(self._device)
+
+class RemoteOSCQDevice():
+    def __init__(self):
+        self.device = None
+        self.ws_port = None
+        self.osc_port = None
+        self.nodes = {}
+        self.queue = ossia.MessageQueue(self._device)
+
+class RemoteOSCDevice():
+    def __init__(self):
+        self.device = None
+        self.in_port = None
+        self.out_port = None
+        self.nodes = {}
+        self.queue = ossia.MessageQueue(self._device)
+'''
+
+class OssiaServer(threading.Thread):
+    def __init__(self, node_id, ws_port, osc_port, master = False):
+        super().__init__(target=self.threaded_meta_loop, name='OSCMsgQueuesLoop')
+        self.server_running = True
+
+        self.internal_queue_loop = threading.Thread(target=self.threaded_internal_loop, name='OSCInternalQueueLoop')
+        self.local_queue_loop = threading.Thread(target=self.threaded_local_loop, name='OSCLocalQueueLoop')
+        self.remote_queue_loop = threading.Thread(target=self.threaded_remote_loop, name='OSCRemoteQueueLoop')
+
+        # Ossia Local OSCQuery device and server creation
+        self.node_id = node_id
+        self.master = master
+        if self.master:
+            local_device_name = f'{self.node_id}_master_root'
+        else:
+            local_device_name = f'{self.node_id}_slave_root'
+
+        self._oscquery_local_device = ossia.LocalDevice(local_device_name)
+        try:
+            while not self._oscquery_local_device.create_oscquery_server(osc_port, ws_port, False):
+                ws_port += 1
+            Logger.info(f'Local OscQuery device opened with ports: WS {ws_port} OSC {osc_port}')
+        except Exception as e:
+            Logger.exception(e)
+
+        # Internal OSC sending queue 
+        self._oscquery_internal_messageq = Queue()
+        # Local OSC messages queue
+        self._oscquery_local_messageq = ossia.GlobalMessageQueue(self._oscquery_local_device)
+
+        # OSC nodes information
+        # for the local OSCQuery connection
+        self._oscquery_registered_nodes = dict()
+
+        # for the dinamically registered OSC player devices
+        self.osc_player_devices = dict()
+        self.osc_player_registered_nodes = dict()
+
+        # for the dinamically registered OSC player devices
+        self.oscquery_slave_devices = dict()
+        self.oscquery_slave_registered_nodes = dict()
+
+        # Remote devices OSC message queues list
+        self.oscquery_slave_messageqs = dict()
+        
+        # Global Message queues for each device
+        self.gmessageqs = list()
+        # self.gmessageqs.append(ossia.GlobalMessageQueue(self._oscquery_local_device))
+
+        self.start()
+
+    def stop(self):
+        self.server_running = False
+
+    def threaded_meta_loop(self):
+        self.internal_queue_loop.start()
+        self.local_queue_loop.start()
+        self.remote_queue_loop.start()
+        # self.global_queue_loop.start()
+
+    def send_message(self, route, value):
+        self._oscquery_registered_nodes[route][0].value = value
+        ossia_parameter = self._oscquery_registered_nodes[route][0]
+        qmessage = ossia_parameter, value
+        self._oscquery_internal_messageq.put(qmessage)
+
+
+    def route_messages(self, parameter, value):
+        
+        # print(f'LOCAL QUEUE : param : {str(parameter.node)} value : {value}')
+
+        # Try to copy the message on the appropriate nodes
+        try:
+            # if the message has a route to any of the local players...
+            if str(parameter.node) in self.osc_player_registered_nodes.keys():
+                self.osc_player_registered_nodes[str(parameter.node)][0].value = value
+                # print(f'Message on the LOCAL queue copied to osc_player_registered_nodes - {str(parameter.node)} : {value}')
+        except KeyError:
+            Logger.info(f'OSC device has no {str(parameter.node)} node')
+        except Exception as e:
+            Logger.exception(e)
+
+        # Try to copy the message on the appropriate nodes
+        try:
+            # if the message has a route to any of the local players...
+            if str(parameter.node) in self.oscquery_slave_registered_nodes.keys():
+                self.oscquery_slave_registered_nodes[str(parameter.node)][0].value = value
+                # print(f'Message on the LOCAL queue copied to osc_player_registered_nodes - {str(parameter.node)} : {value}')
+        except KeyError:
+            Logger.info(f'OSC device has no {str(parameter.node)} node')
+        except Exception as e:
+            Logger.exception(e)
+
+        if str(parameter.node)[:13] == '/engine/comms/':
+            # If we are master we filter the comms OSC messages and
+            # try to copy them to all the slaves directly
+            # print(f'Copying comms to slaves / master...')
+            for device in self.oscquery_slave_devices.keys():
+                self.oscquery_slave_registered_nodes[f'/{device}{str(parameter.node)}'][0].value = value
+                self._oscquery_registered_nodes[f'/{device}{str(parameter.node)}'][0].value = value
+
+        # Try to call a callback for that node if there is any
+        try:
+            if self._oscquery_registered_nodes[str(parameter.node)][1]:
+                # if the node has a callback, let's call it
+                self._oscquery_registered_nodes[str(parameter.node)][1](value=value)
+        except KeyError:
+            Logger.info(f'OSCQuery local device has no {str(parameter.node)} node')
+        except Exception as e:
+            Logger.exception(e)
+
+
+    def threaded_internal_loop(self):
+        while self.server_running:
+            # internally generated osc messages
+            while not self._oscquery_internal_messageq.empty():
+                internalq_message = self._oscquery_internal_messageq.get()
+                parameter, value = internalq_message
+                self.route_messages(parameter, value)
+
+    
+    def threaded_local_loop(self):
+        while self.server_running:
+            # Loop for the local queue
+            oscq_message = self._oscquery_local_messageq.pop()
+            while (oscq_message != None):
+                parameter, value = oscq_message
+
+                self.route_messages(parameter, value)
+
+                oscq_message = self._oscquery_local_messageq.pop()
+            
+            time.sleep(0.001)
+
+    def threaded_remote_loop(self):
+        while self.server_running:
+            for device, queue in self.oscquery_slave_messageqs.items():
+                # Loop for the remote queues
+                oscq_message = queue.pop()
+                while (oscq_message != None):
+                    parameter, value = oscq_message
+
+                    # print(f'REMOTE QUEUE : device {device} param : {str(parameter.node)} value : {value}')
+
+                    self._oscquery_registered_nodes[f'/{device}{str(parameter.node)}'][0].value = value if value else ''
+                    self.oscquery_slave_registered_nodes[f'/{device}{str(parameter.node)}'][0].value = value if value else ''
+
+                    if not self.master:
+                        try:
+                            self._oscquery_registered_nodes[str(parameter.node)][0].value = value
+                        except KeyError:
+                            pass
+
+                    '''
+                    try:
+                        # Try to copy the message on the appropriate nodes
+                        self._oscquery_registered_nodes[str(parameter.node)][0].value = value
+                        # if the message has a route to any of the local players...
+                        if str(parameter.node) in self.osc_player_registered_nodes.keys() and self.osc_player_registered_nodes[str(parameter.node)][0].value != value:
+                            self.osc_player_registered_nodes[str(parameter.node)][0].value = value
+                            print(f'Message on the REMOTE queue copied to osc_player_registered_nodes - {str(parameter.node)} : {value}')
+
+                        # if the message has a route to any of the other nodes...
+                        if str(parameter.node) in self.oscquery_slave_registered_nodes.keys() and self.oscquery_slave_registered_nodes[str(parameter.node)][0].value != value:
+                            self.oscquery_slave_registered_nodes[str(parameter.node)][0].value = value
+                            print(f'Message on the REMOTE queue copied to oscquery_slave_registered_nodes - {str(parameter.node)} : {value}')
+                    except KeyError:
+                        Logger.info(f'OSC device has no {str(parameter.node)} node')
+                    except Exception as e:
+                        Logger.exception(e)
+                    '''
+
+
+                    oscq_message = queue.pop()
+
+            time.sleep(0.005)
+
+    def add_player_nodes(self, data):
+        if isinstance(data, PlayerOSCConfData):
+            # REGISTERING A PLAYER
+            self.osc_player_devices[data.device_name] = ossia.ossia.OSCDevice(
+                                                        f'{data.device_name}', 
+                                                        data.host, 
+                                                        data.in_port, 
+                                                        data.out_port)
+            for route, conf in data.items():
+                temp_node = self.osc_player_devices[data.device_name].add_node(route)
+                temp_node.critical = True
+                # conf[0] holds the OSC type of data
+
+                parameter = temp_node.create_parameter(conf[0])
+                parameter.access_mode = ossia.AccessMode.Bi
+                parameter.repetition_filter = ossia.ossia_python.RepetitionFilter.On
+                # conf[1] holds the method to call when received such a route
+                self.osc_player_registered_nodes[data.device_name + route] = [parameter, conf[1]]
+
+                ############ Register also the node on the local oscquery device tree
+                temp_node = self._oscquery_local_device.add_node(data.device_name + route)
+                temp_node.critical = True
+                # conf[0] holds the OSC type of data
+
+                parameter = temp_node.create_parameter(conf[0])
+                parameter.access_mode = ossia.AccessMode.Bi
+                parameter.repetition_filter = ossia.ossia_python.RepetitionFilter.On
+                # self._oscquery_local_messageq.register(parameter)
+                # conf[1] holds the method to call when received such a route
+                self._oscquery_registered_nodes[data.device_name + route] = [parameter, conf[1]]
+
+            # Logger.info(f'OSC Nodes listening on {data.in_port}: {self.osc_player_registered_nodes[data.device_name + route]}')
+
+    def add_master_node(self, data):
+        ''' Just an alias to add_other_nodes to make code more readable
+            But it also adds a small delay for the master node to do it a bit later
+        '''
+        time.sleep(1)
+        self.add_other_nodes(data)
+
+    def add_slave_nodes(self, data):
+        ''' Just an alias to add_other_nodes to make code more readable
+            But it also adds a small delay for the master node to do it a bit later
+        '''
+        self.add_other_nodes(data)
+
+    def add_other_nodes(self, data):
+        if isinstance(data, SlaveOSCQueryConfData):
+            try:
+                new_device = ossia.OSCQueryDevice(
+                data.device_name,
+                f'ws://{data.host}:{data.ws_port}',
+                data.osc_port
+                )
+            except Exception as e:
+                Logger.exception(f'Failed to create OSCQueryDevice: {e}, type: {type(e)}')
+                return
+            Logger.info(f'Added OSCQueryDevice: {data.device_name}##############################################')
+
+            try:
+                self.oscquery_slave_devices[data.device_name].update()
+            except Exception as e:
+                Logger.exception(f'Failed to update OSCQueryDevice: {e}, type: {type(e)}')
+                return
+            Logger.debug(f'Updated OSCQueryDevice: {data.device_name}###########################################') 
+            # node_vec = self.oscquery_slave_devices[data.device_name].root_node.get_nodes()
+            param_vec = self.oscquery_slave_devices[data.device_name].root_node.get_parameters()
+            self.oscquery_slave_messageqs[data.device_name] = ossia.GlobalMessageQueue(self.oscquery_slave_devices[data.device_name])
+            # self.gmessageqs.append(ossia.GlobalMessageQueue(self.oscquery_slave_devices[data.device_name]))
+
+            for param in param_vec:
+                # self.oscquery_slave_messageqs[data.device_name].register(param)
+                self.oscquery_slave_registered_nodes[f'/{data.device_name}{str(param.node)}'] = [param, None]
+
+                ############ Register also the node on the local oscquery device tree
+                temp_node = self._oscquery_local_device.add_node(data.device_name + str(param.node))
+                temp_node.critical = True
+                parameter = temp_node.create_parameter(param.value_type)
+                parameter.access_mode = param.access_mode
+                parameter.repetition_filter = param.repetition_filter
+                # self._oscquery_local_messageq.register(parameter)
+                
+                self._oscquery_registered_nodes[f'/{data.device_name}{str(param.node)}'] = [parameter, None]
+
+    def add_local_nodes(self, data):
+        if isinstance(data, MasterOSCQueryConfData):
+            for route, conf in data.items():
+                temp_node = self._oscquery_local_device.add_node(f'{route}')
+                temp_node.critical = True
+                parameter = temp_node.create_parameter(conf[0])
+                parameter.access_mode = ossia.AccessMode.Bi
+                parameter.repetition_filter = ossia.ossia_python.RepetitionFilter.On
+                # self._oscquery_local_messageq.register(parameter)
+                
+                self._oscquery_registered_nodes[f'{route}'] = [parameter, conf[1]]
+
+            # Logger.info(f'OSCQuery Nodes registered: {data}')
+
+    def remove_nodes(self, data):
+        if isinstance(data, OSCConfData):
+            for route in data.keys():
+                try:
+                    self.osc_player_registered_nodes.pop(data.device_name + route)
+                except Exception as e:
+                    Logger.exception(e)
+
+                try:
+                    self._oscquery_registered_nodes.pop(data.device_name + route)
+                except Exception as e:
+                    Logger.exception(e)
+
+            try:
+                self.osc_player_devices.pop(data.device_name)
+            except KeyError:
+                try:
+                    self.oscquery_slave_devices.pop(data.device_name)
+                except Exception as e:
+                    Logger.exception(e)
+            except Exception as e:
+                Logger.exception(e)
+            
+
+class OSCConfData(dict):
+    def __init__(self, device_name, dictionary = {}):
+        self.device_name = device_name
+        super().__init__(dictionary)
+
+class MasterOSCQueryConfData(OSCConfData):
+    pass
+
+class PlayerOSCConfData(OSCConfData):
+    def __init__(self, device_name, host = '', in_port = 0, out_port = 0, dictionary = {}):
+        self.device_name = device_name
+        self.host = host
+        self.in_port = in_port
+        self.out_port = out_port
+        super().__init__(device_name, dictionary)
+
+class SlaveOSCQueryConfData(OSCConfData):
+    def __init__(self, device_name, host = '', ws_port = 0, osc_port = 0, dictionary = {}):
+        self.device_name = device_name
+        self.host = host
+        self.ws_port = ws_port
+        self.osc_port = osc_port
+        super().__init__(device_name, dictionary)
diff --git a/dev/README_CLEANUP.md b/dev/README_CLEANUP.md
new file mode 100644
index 0000000..81f499e
--- /dev/null
+++ b/dev/README_CLEANUP.md
@@ -0,0 +1,231 @@
+# CUEMS Testing Cleanup Mechanisms
+
+This document explains the improved pytest setup that prevents background processes from persisting when tests are interrupted with `Ctrl+C`.
+
+## Problem
+
+Previously, when pytest tests were cancelled using `Ctrl+C`, background processes and threads created by CUEMS engines would continue running, requiring manual cleanup. This was caused by:
+
+1. **Daemon threads** from `MtcListener` and other components
+2. **Subprocesses** spawned by `Player` classes
+3. **Multiprocessing.Process** instances in tests
+4. **Threading** from `OssiaServer` and WebSocket servers
+5. **Incomplete cleanup** during test interruption
+
+## Solution
+
+We've implemented a comprehensive cleanup system with multiple layers:
+
+### 1. Signal Handling (`conftest.py`)
+- Registers `SIGINT` handler to catch `Ctrl+C`
+- Automatically calls cleanup functions for all registered resources
+- Terminates daemon threads and multiprocessing children
+- Provides graceful shutdown with fallback to force termination
+
+### 2. Pytest Plugin (`pytest_cuems_plugin.py`)
+- Custom pytest plugin for CUEMS-specific cleanup
+- Automatic registration and cleanup of engines, processes, and threads
+- Hooks into pytest's lifecycle events
+- Handles test failures and interruptions
+
+### 3. Cleanup Fixtures
+- `engine_cleanup`: Automatically manages CUEMS engine instances
+- `process_cleanup`: Tracks and cleans up multiprocessing.Process instances
+- `cuems_cleaner`: Provides access to the cleanup system
+
+## Usage
+
+### Basic Engine Testing
+```python
+def test_my_engine(engine_cleanup):
+    # Register engine for automatic cleanup
+    engine = engine_cleanup(ControllerEngine(with_mtc=False))
+    
+    # Test your engine
+    assert engine.cm is not None
+    
+    # Cleanup is automatic - no need for manual stop()
+```
+
+### Process Testing
+```python
+def test_with_processes(process_cleanup):
+    # Register process for automatic cleanup
+    process = process_cleanup(
+        multiprocessing.Process(target=worker_func, name="TestWorker")
+    )
+    process.start()
+    
+    # Test your process
+    assert process.is_alive()
+    
+    # Cleanup is automatic
+```
+
+### Combined Resources
+```python
+def test_complex_scenario(engine_cleanup, process_cleanup, cuems_cleaner):
+    engine = engine_cleanup(NodeEngine(with_mtc=False))
+    process = process_cleanup(multiprocessing.Process(target=task))
+    
+    # Add custom cleanup
+    cuems_cleaner.add_cleanup_hook(lambda: print("Custom cleanup"))
+    
+    # All resources cleaned up automatically
+```
+
+### Custom Cleanup Hooks
+```python
+def test_with_custom_cleanup(cuems_cleaner):
+    # Setup custom resources
+    my_resource = SomeResource()
+    
+    # Register cleanup
+    cuems_cleaner.add_cleanup_hook(lambda: my_resource.cleanup())
+    
+    # Test code here
+```
+
+## Configuration
+
+### Pytest Configuration
+The `pyproject.toml` file includes:
+```toml
+[tool.pytest.ini_options]
+addopts = [
+    "-p", "tests.pytest_cuems_plugin",  # Enable cleanup plugin
+    # ... other options
+]
+markers = [
+    "cuems: marks tests as using CUEMS engines (automatic cleanup)",
+]
+timeout = 300  # 5 minutes timeout
+```
+
+### Test Markers
+Mark tests that use CUEMS components:
+```python
+@pytest.mark.cuems
+def test_engine_functionality(engine_cleanup):
+    # Test code
+```
+
+## Testing the Cleanup
+
+### Run Demo Tests
+```bash
+# Run all cleanup demos
+pytest tests/test_cleanup_demo.py -v -s
+
+# Run specific demo
+pytest tests/test_cleanup_demo.py::test_long_running_with_cleanup -v -s
+
+# Run without slow tests
+pytest tests/test_cleanup_demo.py -v -s -m "not slow"
+```
+
+### Manual Testing
+1. Start the long-running test:
+   ```bash
+   pytest tests/test_cleanup_demo.py::test_long_running_with_cleanup -v -s
+   ```
+
+2. Press `Ctrl+C` during execution
+
+3. Observe the cleanup messages:
+   ```
+   ^C
+   Received interrupt signal, cleaning up...
+   === CUEMS Test Cleanup Started ===
+   Stopped engine: ControllerEngine
+   Terminated process: Worker0
+   Terminated process: Worker1
+   === CUEMS Test Cleanup Complete ===
+   Cleanup complete, exiting...
+   ```
+
+4. Verify no background processes remain:
+   ```bash
+   ps aux | grep -E "(python|cuems)" | grep -v grep
+   ```
+
+## Migration Guide
+
+### Updating Existing Tests
+
+1. **Add cleanup fixtures to test functions:**
+   ```python
+   # Before
+   def test_engine():
+       engine = ControllerEngine(with_mtc=False)
+       # test code
+       engine.stop()
+   
+   # After
+   def test_engine(engine_cleanup):
+       engine = engine_cleanup(ControllerEngine(with_mtc=False))
+       # test code - cleanup is automatic
+   ```
+
+2. **Register processes:**
+   ```python
+   # Before
+   def test_with_process():
+       process = multiprocessing.Process(target=worker)
+       process.start()
+       # test code
+       process.terminate()
+   
+   # After
+   def test_with_process(process_cleanup):
+       process = process_cleanup(multiprocessing.Process(target=worker))
+       process.start()
+       # test code - cleanup is automatic
+   ```
+
+3. **Add markers:**
+   ```python
+   @pytest.mark.cuems
+   def test_cuems_functionality(engine_cleanup):
+       # test code
+   ```
+
+## Benefits
+
+1. **No More Orphan Processes**: All background processes are properly terminated
+2. **Cleaner Test Environment**: Each test starts with a clean slate
+3. **Easier Debugging**: No interference from previous test runs
+4. **Better CI/CD**: Automated tests won't leave hanging processes
+5. **Developer Experience**: No manual process cleanup required
+
+## Troubleshooting
+
+### If Processes Still Persist
+1. Check if test uses the cleanup fixtures
+2. Verify the plugin is loaded: `pytest --trace-config`
+3. Ensure signal handlers aren't overridden
+4. Add debug prints to cleanup functions
+
+### For Custom Resources
+If you have custom resources that need cleanup:
+```python
+def test_custom_resource(cuems_cleaner):
+    resource = MyCustomResource()
+    cuems_cleaner.add_cleanup_hook(resource.cleanup)
+    # test code
+```
+
+### Debugging Cleanup Issues
+Enable verbose logging:
+```python
+import logging
+logging.basicConfig(level=logging.DEBUG)
+```
+
+## Related Files
+
+- `tests/conftest.py` - Main signal handling and fixtures
+- `tests/pytest_cuems_plugin.py` - Custom pytest plugin
+- `tests/test_cleanup_demo.py` - Demonstration tests
+- `pyproject.toml` - Pytest configuration
+- `tests/test_project_load.py` - Updated to use new fixtures 
diff --git a/dev/README_CPU_TESTS.md b/dev/README_CPU_TESTS.md
new file mode 100644
index 0000000..c39d32c
--- /dev/null
+++ b/dev/README_CPU_TESTS.md
@@ -0,0 +1,257 @@
+# CPU Usage Tests for BaseEngine
+
+This directory contains comprehensive tests for monitoring CPU usage of running `BaseEngine` instances in the CUEMS Engine system.
+
+## Overview
+
+The CPU usage tests are designed to:
+- Monitor CPU consumption during different engine states
+- Ensure the engine doesn't consume excessive resources
+- Test stability and recovery from CPU spikes
+- Monitor memory usage patterns
+- Validate cleanup procedures
+
+## Test Structure
+
+### Test Classes
+
+- **`TestBaseEngineCPUUsage`**: Main test class containing all CPU monitoring tests
+
+### Test Methods
+
+1. **`test_base_engine_idle_cpu_usage`**
+   - Tests CPU usage when the engine is idle
+   - Verifies low resource consumption during minimal activity
+   - Duration: ~3 seconds
+
+2. **`test_base_engine_continuous_operation_cpu_usage`**
+   - Tests CPU usage during continuous engine operations
+   - Simulates periodic status updates and operations
+   - Duration: ~10 seconds
+
+3. **`test_base_engine_memory_usage`**
+   - Monitors memory consumption during operations
+   - Tests for memory leaks or excessive usage
+   - Duration: ~5 seconds
+
+4. **`test_base_engine_cpu_spike_handling`**
+   - Tests engine recovery after CPU-intensive operations
+   - Verifies CPU usage returns to baseline levels
+   - Duration: ~5 seconds
+
+5. **`test_base_engine_long_running_stability`**
+   - Tests CPU stability over extended periods
+   - Identifies any long-term resource consumption issues
+   - Duration: ~15 seconds
+
+6. **`test_base_engine_cleanup_cpu_usage`**
+   - Tests resource cleanup after engine shutdown
+   - Ensures no lingering CPU usage after cleanup
+   - Duration: ~3 seconds
+
+## Prerequisites
+
+### Required Dependencies
+
+```bash
+# Core testing dependencies
+pip install pytest pytest-cov pytest-xdist
+
+# CPU monitoring dependency
+pip install psutil
+
+# Development dependencies (if not already installed)
+pip install -e ".[dev]"
+```
+
+### System Requirements
+
+- Python 3.11+
+- Linux system (for accurate psutil measurements)
+- Sufficient CPU resources for testing
+- No other CPU-intensive processes running
+
+## Running the Tests
+
+### Using the Test Runner Script
+
+```bash
+# Run all CPU tests
+python tests/run_cpu_tests.py
+
+# Run only fast tests (exclude slow ones)
+python tests/run_cpu_tests.py --markers "not slow"
+
+# Run only integration tests
+python tests/run_cpu_tests.py --markers "integration"
+
+# Run with verbose output
+python tests/run_cpu_tests.py --verbose
+
+# Run with coverage report
+python tests/run_cpu_tests.py --coverage
+
+# List available tests
+python tests/run_cpu_tests.py --list-tests
+```
+
+### Using pytest Directly
+
+```bash
+# Run all CPU tests
+pytest tests/test_cpu_usage.py -v
+
+# Run specific test
+pytest tests/test_cpu_usage.py::TestBaseEngineCPUUsage::test_base_engine_idle_cpu_usage -v
+
+# Run tests with markers
+pytest tests/test_cpu_usage.py -m "not slow" -v
+
+# Run tests in parallel (if pytest-xdist is installed)
+pytest tests/test_cpu_usage.py -n auto -v
+```
+
+## Test Markers
+
+- **`@pytest.mark.slow`**: Tests that take longer to run (>5 seconds)
+- **`@pytest.mark.integration`**: Tests that involve multiple components
+- **`@pytest.mark.cuems`**: Tests that use CUEMS engines (automatic cleanup)
+
+## Interpreting Results
+
+### CPU Usage Thresholds
+
+- **Idle State**: Should be < 10% average, < 20% peak
+- **Active Operations**: Should be < 50% average, < 80% peak
+- **Recovery**: Should return to baseline levels after spikes
+- **Long-term Stability**: Range should be < 30% (max - min)
+
+### Memory Usage Thresholds
+
+- **Total Memory**: Should be < 500 MB
+- **Memory Increase**: Should be < 100 MB during operations
+
+### Test Output
+
+Each test provides detailed output including:
+- CPU usage statistics (min, max, average)
+- Memory consumption patterns
+- Operation counts and durations
+- Recovery ratios and stability metrics
+
+## Troubleshooting
+
+### Common Issues
+
+1. **High CPU Usage During Tests**
+   - Ensure no other processes are consuming CPU
+   - Check system load with `top` or `htop`
+   - Verify test environment is clean
+
+2. **Memory Issues**
+   - Check for memory leaks in the engine
+   - Verify cleanup procedures are working
+   - Monitor system memory with `free -h`
+
+3. **Test Failures**
+   - Check dependency versions
+   - Verify system resources
+   - Review test logs for specific error messages
+
+### Debug Mode
+
+Run tests with increased verbosity for debugging:
+
+```bash
+pytest tests/test_cpu_usage.py -v -s --tb=long
+```
+
+### Performance Profiling
+
+For detailed performance analysis, use pytest-profiling:
+
+```bash
+pip install pytest-profiling
+pytest tests/test_cpu_usage.py --profile
+```
+
+## Customization
+
+### Adjusting Thresholds
+
+Modify the assertion values in test methods to adjust acceptable thresholds:
+
+```python
+# Example: Adjust idle CPU threshold
+assert idle_cpu_stats['avg'] < 15.0, f"Idle CPU usage too high: {idle_cpu_stats['avg']}%"
+```
+
+### Adding New Tests
+
+To add new CPU monitoring tests:
+
+1. Create a new test method in `TestBaseEngineCPUUsage`
+2. Use the existing monitoring utilities
+3. Add appropriate assertions and logging
+4. Include relevant pytest markers
+
+### Monitoring Custom Metrics
+
+Extend the monitoring utilities to track additional metrics:
+
+```python
+def monitor_custom_metric(self, process, metric_name, duration=5.0):
+    """Monitor custom system metrics"""
+    # Implementation here
+    pass
+```
+
+## Integration with CI/CD
+
+### GitHub Actions Example
+
+```yaml
+- name: Run CPU Usage Tests
+  run: |
+    pip install -e ".[dev]"
+    pytest tests/test_cpu_usage.py -m "not slow" --junitxml=cpu-tests.xml
+```
+
+### Jenkins Pipeline Example
+
+```groovy
+stage('CPU Tests') {
+    steps {
+        sh 'pip install -e ".[dev]"'
+        sh 'pytest tests/test_cpu_usage.py --junitxml=cpu-tests.xml'
+    }
+    post {
+        always {
+            junit 'cpu-tests.xml'
+        }
+    }
+}
+```
+
+## Contributing
+
+When contributing to CPU usage tests:
+
+1. Follow the existing test patterns
+2. Add appropriate markers and documentation
+3. Ensure tests are deterministic and reliable
+4. Include performance benchmarks if applicable
+5. Update this README with new test information
+
+## Support
+
+For issues with CPU usage tests:
+
+1. Check the troubleshooting section
+2. Review test logs and output
+3. Verify system requirements
+4. Open an issue with detailed error information
+
+## License
+
+These tests are part of the CUEMS Engine project and are licensed under the same terms as the main project. 
diff --git a/src/cuems/Settings.py b/dev/Settings_old.py
similarity index 89%
rename from src/cuems/Settings.py
rename to dev/Settings_old.py
index a7e34ab..e582d96 100644
--- a/src/cuems/Settings.py
+++ b/dev/Settings_old.py
@@ -3,13 +3,11 @@
 
 import xml.etree.ElementTree as ET
 import xmlschema
-import datetime  as DT
 import os
-from .log import logger
 
-from .CTimecode import CTimecode
-
-from .CMLCuemsConverter import CMLCuemsConverter
+from cuemsutils.log import Logger
+from cuemsutils.CTimecode import CTimecode
+from cuemsutils.xml.CMLCuemsConverter import CMLCuemsConverter
 
 class Settings(dict):
     def __init__(self, schema = None, xmlfile = None, *arg, **kw):
@@ -23,13 +21,13 @@ def __init__(self, schema = None, xmlfile = None, *arg, **kw):
     
     def __backup(self):
         if os.path.isfile(self.xmlfile):
-            logger.info("File exist")
+            Logger.info("File exist")
             try:
                 os.rename(self.xmlfile, "{}.back".format(self.xmlfile))
             except OSError:
-                logger.error("Cannot create settings backup")
+                Logger.error("Cannot create settings backup")
         else:
-            logger.error("Settings file not found")
+            Logger.error("Settings file not found")
     
     @property
     def schema(self):
@@ -72,7 +70,7 @@ def read(self):
         try:
             schema_file = open(self.schema)
         except FileNotFoundError:
-            logger.error(f'{self.schema} XSD file not found')
+            Logger.error(f'{self.schema} XSD file not found')
 
         schema = xmlschema.XMLSchema11(schema_file, base_url='', converter=CMLCuemsConverter)
         # schema = xmlschema.XMLSchema(schema_file, base_url='')
@@ -80,7 +78,7 @@ def read(self):
         try:
             xml_file = open(self.xmlfile)
         except FileNotFoundError:
-            logger.error(f'{self.xmlfile} XML file not found')
+            Logger.error(f'{self.xmlfile} XML file not found')
             raise
 
         xml_dict = schema.to_dict(xml_file, dict_class=dict, list_class=list, validation='strict',  strip_namespaces=True, attr_prefix='')
diff --git a/dev/VideoPlayerRemote.py b/dev/VideoPlayerRemote.py
new file mode 100644
index 0000000..0d037d3
--- /dev/null
+++ b/dev/VideoPlayerRemote.py
@@ -0,0 +1,33 @@
+class VideoPlayerRemote():
+    def __init__(self, port, monitor_id, path, args, media):
+        self.port = port
+        self.monitor_id = monitor_id
+        self.videoplayer = VideoPlayer(self.port, self.monitor_id, path, args, media)
+        self.__start_remote()
+
+    def __start_remote(self):
+        self.remote_osc_xjadeo = ossia.ossia.OSCDevice("remoteXjadeo{}".format(self.monitor_id), "127.0.0.1", self.port, self.port+1)
+
+        self.remote_xjadeo_quit_node = self.remote_osc_xjadeo.add_node("/jadeo/quit")
+        self.xjadeo_quit_parameter = self.remote_xjadeo_quit_node.create_parameter(ossia.ValueType.Impulse)
+
+        self.remote_xjadeo_seek_node = self.remote_osc_xjadeo.add_node("/jadeo/seek")
+        self.xjadeo_seek_parameter = self.remote_xjadeo_seek_node.create_parameter(ossia.ValueType.Int)
+
+        self.remote_xjadeo_load_node = self.remote_osc_xjadeo.add_node("/jadeo/load")
+        self.xjadeo_load_parameter = self.remote_xjadeo_load_node.create_parameter(ossia.ValueType.String)
+
+    def start(self):
+        self.videoplayer.start()
+
+    def kill(self):
+        self.videoplayer.kill()
+
+    def load(self, load_path):
+        self.xjadeo_load_parameter.value = load_path
+
+    def seek(self, frame):
+        self.xjadeo_seek_parameter.value = frame
+
+    def quit(self):
+        self.xjadeo_quit_parameter.value = True
diff --git a/dev/change_to_firstrun.sh b/dev/change_to_firstrun.sh
new file mode 100755
index 0000000..c9702b2
--- /dev/null
+++ b/dev/change_to_firstrun.sh
@@ -0,0 +1,4 @@
+cp /usr/share/cuems/cuems.service.firstrun /etc/avahi/services/cuems.service
+systemctl reload avahi-daemon.service
+
+
diff --git a/dev/change_to_master.sh b/dev/change_to_master.sh
new file mode 100755
index 0000000..1cf760f
--- /dev/null
+++ b/dev/change_to_master.sh
@@ -0,0 +1,2 @@
+cp /usr/share/cuems/cuems.service.master /etc/avahi/services/cuems.service
+
diff --git a/dev/change_to_slave.sh b/dev/change_to_slave.sh
new file mode 100755
index 0000000..77db8b6
--- /dev/null
+++ b/dev/change_to_slave.sh
@@ -0,0 +1,2 @@
+cp /usr/share/cuems/cuems.service.slave /etc/avahi/services/cuems.service
+
diff --git a/src/cuems/config.py b/dev/config.py
similarity index 100%
rename from src/cuems/config.py
rename to dev/config.py
diff --git a/dev/cuems-engine.service b/dev/cuems-engine.service
new file mode 100644
index 0000000..b3ed434
--- /dev/null
+++ b/dev/cuems-engine.service
@@ -0,0 +1,21 @@
+[Unit]
+Description=cuems-engine
+#PartOf=cuems-node.service
+Requires=avahi-daemon.service
+After=network-online.target avahi-daemon.service
+Wants=network-online.target
+StartLimitBurst=5
+StartLimitIntervalSec=33
+
+
+[Service]
+#Environment="PYTHONPATH=/usr/lib/cuems/site-packages"
+Type=simple
+#NotifyAccess=main
+#Restart=on-failure
+RestartSec=10
+ExecStart=/home/ion/.pyenv/versions/3.11.2/envs/cuems/bin/python3 /home/ion/src/cuems/cuems-engine/scripts/controller_engine.py
+TimeoutSec=900
+
+[Install]
+WantedBy=default.target
diff --git a/dev/diagnose_env_output.txt b/dev/diagnose_env_output.txt
new file mode 100644
index 0000000..74929e2
--- /dev/null
+++ b/dev/diagnose_env_output.txt
@@ -0,0 +1,115 @@
+=== Environment Diagnostic Information ===
+
+=== Hatch Version ===
+Hatch, version 1.14.0
+
+=== Python Information ===
+version: 3.11.2 (main, Mar 27 2023, 23:42:44) [GCC 11.2.0]
+implementation: CPython
+platform: Linux-6.1.0-34-amd64-x86_64-with-glibc2.36
+executable: /home/adria/.local/share/hatch/env/virtual/cuemsengine/btOilmyM/cuemsengine/bin/python
+
+=== Path Information ===
+PYTHONPATH: Not set
+
+sys.path:
+  - /disk/Projects/StageLab/cuems-engine
+  - /home/adria/anaconda3/envs/cuems_debian12/lib/python311.zip
+  - /home/adria/anaconda3/envs/cuems_debian12/lib/python3.11
+  - /home/adria/anaconda3/envs/cuems_debian12/lib/python3.11/lib-dynload
+  - /home/adria/.local/share/hatch/env/virtual/cuemsengine/btOilmyM/cuemsengine/lib/python3.11/site-packages
+  - /disk/Projects/StageLab/cuems-engine/src
+
+site_packages:
+  - /home/adria/.local/share/hatch/env/virtual/cuemsengine/btOilmyM/cuemsengine/lib/python3.11/site-packages
+current_dir: /disk/Projects/StageLab/cuems-engine
+src_dir_exists: True
+src_cuemsengine_exists: True
+
+=== Hatch Environment Variables ===
+HATCH_ENV_ACTIVE=default
+CONDA_PROMPT_MODIFIER=(cuems_debian12) 
+LANGUAGE=en_GB:en
+USER=adria
+LC_TIME=ca_ES.UTF-8
+XDG_SESSION_TYPE=wayland
+GIT_ASKPASS=/tmp/.mount_Cursor86xCWI/usr/share/cursor/resources/app/extensions/git/dist/askpass.sh
+SHLVL=3
+LD_LIBRARY_PATH=/tmp/.mount_Cursor86xCWI/usr/lib/:/tmp/.mount_Cursor86xCWI/usr/lib32/:/tmp/.mount_Cursor86xCWI/usr/lib64/:/tmp/.mount_Cursor86xCWI/lib/:/tmp/.mount_Cursor86xCWI/lib/i386-linux-gnu/:/tmp/.mount_Cursor86xCWI/lib/x86_64-linux-gnu/:/tmp/.mount_Cursor86xCWI/lib/aarch64-linux-gnu/:/tmp/.mount_Cursor86xCWI/lib32/:/tmp/.mount_Cursor86xCWI/lib64/:
+HOME=/home/adria
+CHROME_DESKTOP=cursor.desktop
+APPDIR=/tmp/.mount_Cursor86xCWI
+CONDA_SHLVL=2
+TERM_PROGRAM_VERSION=0.49.5
+DESKTOP_SESSION=gnome
+PERLLIB=/tmp/.mount_Cursor86xCWI/usr/share/perl5/:/tmp/.mount_Cursor86xCWI/usr/lib/perl5/:
+GTK_MODULES=gail:atk-bridge
+VSCODE_GIT_ASKPASS_MAIN=/tmp/.mount_Cursor86xCWI/usr/share/cursor/resources/app/extensions/git/dist/askpass-main.js
+PS1=\[]633;A\](cuems_debian12) (base) \[\e]0;\u@\h: \w\a\]${debian_chroot:+($debian_chroot)}\[\033[01;32m\]\u@\h\[\033[00m\]:\[\033[01;34m\]\w\[\033[00m\]\$ \[]633;B\]
+LC_MONETARY=ca_ES.UTF-8
+VSCODE_GIT_ASKPASS_NODE=/tmp/.mount_Cursor86xCWI/usr/share/cursor/cursor
+PYDEVD_DISABLE_FILE_VALIDATION=1
+SYSTEMD_EXEC_PID=1972
+BUNDLED_DEBUGPY_PATH=/home/adria/.vscode/extensions/ms-python.debugpy-2025.4.1-linux-x64/bundled/libs/debugpy
+IM_CONFIG_CHECK_ENV=1
+DBUS_SESSION_BUS_ADDRESS=unix:path=/run/user/1000/bus
+COLORTERM=truecolor
+_CE_M=
+IM_CONFIG_PHASE=1
+WAYLAND_DISPLAY=wayland-0
+LOGNAME=adria
+CONDA_ROOT=/home/adria/anaconda3
+OWD=/home/adria
+_=/home/adria/anaconda3/envs/cuems_debian12/bin/hatch
+XDG_SESSION_CLASS=user
+USERNAME=adria
+TERM=xterm-256color
+GNOME_DESKTOP_SESSION_ID=this-is-deprecated
+_CE_CONDA=
+PATH=/home/adria/.local/share/hatch/env/virtual/cuemsengine/btOilmyM/cuemsengine/bin:/home/adria/.local/share/hatch/env/virtual/cuemsengine/btOilmyM/cuemsengine/bin:/home/adria/bin:/home/adria/anaconda3/envs/cuems_debian12/bin:/usr/local/bin:/usr/bin:/bin:/usr/local/games:/usr/games:/home/adria/bin:/home/adria/bin:/home/adria/anaconda3/bin:/usr/local/bin:/usr/bin:/bin:/usr/local/games:/usr/games:/home/adria/bin:/home/adria/bin:/home/adria/anaconda3/bin:/usr/local/bin:/usr/bin:/bin:/usr/local/games:/usr/games:/home/adria/bin:/home/adria/bin
+SESSION_MANAGER=local/lenovo:@/tmp/.ICE-unix/1927,unix/lenovo:/tmp/.ICE-unix/1927
+GDM_LANG=en_GB.UTF-8
+APPIMAGE=/home/adria/Cursor-0.49.5-x86_64.AppImage
+XDG_MENU_PREFIX=gnome-
+GNOME_TERMINAL_SCREEN=/org/gnome/Terminal/screen/0a24c360_480b_42c7_9d2a_bddcce0f8e9c
+GNOME_SETUP_DISPLAY=:1
+XDG_RUNTIME_DIR=/run/user/1000
+GDK_BACKEND=x11
+DISPLAY=:0
+HATCH_UV=/home/adria/anaconda3/envs/cuems_debian12/bin/uv
+VSCODE_DEBUGPY_ADAPTER_ENDPOINTS=/home/adria/.vscode/extensions/ms-python.debugpy-2025.4.1-linux-x64/.noConfigDebugAdapterEndpoints/endpoint-6ed3a2966c8c224c.txt
+LANG=en_GB.UTF-8
+XDG_CURRENT_DESKTOP=GNOME
+CONDA_PREFIX_1=/home/adria/anaconda3
+XMODIFIERS=@im=ibus
+XDG_SESSION_DESKTOP=gnome
+XAUTHORITY=/run/user/1000/.mutter-Xwaylandauth.DG2R52
+LS_COLORS=rs=0:di=01;34:ln=01;36:mh=00:pi=40;33:so=01;35:do=01;35:bd=40;33;01:cd=40;33;01:or=40;31;01:mi=00:su=37;41:sg=30;43:ca=00:tw=30;42:ow=34;42:st=37;44:ex=01;32:*.tar=01;31:*.tgz=01;31:*.arc=01;31:*.arj=01;31:*.taz=01;31:*.lha=01;31:*.lz4=01;31:*.lzh=01;31:*.lzma=01;31:*.tlz=01;31:*.txz=01;31:*.tzo=01;31:*.t7z=01;31:*.zip=01;31:*.z=01;31:*.dz=01;31:*.gz=01;31:*.lrz=01;31:*.lz=01;31:*.lzo=01;31:*.xz=01;31:*.zst=01;31:*.tzst=01;31:*.bz2=01;31:*.bz=01;31:*.tbz=01;31:*.tbz2=01;31:*.tz=01;31:*.deb=01;31:*.rpm=01;31:*.jar=01;31:*.war=01;31:*.ear=01;31:*.sar=01;31:*.rar=01;31:*.alz=01;31:*.ace=01;31:*.zoo=01;31:*.cpio=01;31:*.7z=01;31:*.rz=01;31:*.cab=01;31:*.wim=01;31:*.swm=01;31:*.dwm=01;31:*.esd=01;31:*.avif=01;35:*.jpg=01;35:*.jpeg=01;35:*.mjpg=01;35:*.mjpeg=01;35:*.gif=01;35:*.bmp=01;35:*.pbm=01;35:*.pgm=01;35:*.ppm=01;35:*.tga=01;35:*.xbm=01;35:*.xpm=01;35:*.tif=01;35:*.tiff=01;35:*.png=01;35:*.svg=01;35:*.svgz=01;35:*.mng=01;35:*.pcx=01;35:*.mov=01;35:*.mpg=01;35:*.mpeg=01;35:*.m2v=01;35:*.mkv=01;35:*.webm=01;35:*.webp=01;35:*.ogm=01;35:*.mp4=01;35:*.m4v=01;35:*.mp4v=01;35:*.vob=01;35:*.qt=01;35:*.nuv=01;35:*.wmv=01;35:*.asf=01;35:*.rm=01;35:*.rmvb=01;35:*.flc=01;35:*.avi=01;35:*.fli=01;35:*.flv=01;35:*.gl=01;35:*.dl=01;35:*.xcf=01;35:*.xwd=01;35:*.yuv=01;35:*.cgm=01;35:*.emf=01;35:*.ogv=01;35:*.ogx=01;35:*.aac=00;36:*.au=00;36:*.flac=00;36:*.m4a=00;36:*.mid=00;36:*.midi=00;36:*.mka=00;36:*.mp3=00;36:*.mpc=00;36:*.ogg=00;36:*.ra=00;36:*.wav=00;36:*.oga=00;36:*.opus=00;36:*.spx=00;36:*.xspf=00;36:*~=00;90:*#=00;90:*.bak=00;90:*.old=00;90:*.orig=00;90:*.part=00;90:*.rej=00;90:*.swp=00;90:*.tmp=00;90:*.dpkg-dist=00;90:*.dpkg-old=00;90:*.ucf-dist=00;90:*.ucf-new=00;90:*.ucf-old=00;90:*.rpmnew=00;90:*.rpmorig=00;90:*.rpmsave=00;90:
+VSCODE_GIT_IPC_HANDLE=/run/user/1000/vscode-git-89d0d26b7a.sock
+GNOME_TERMINAL_SERVICE=:1.207
+CONDA_PREFIX_2=/home/adria/anaconda3/envs/cuems_debian12
+TERM_PROGRAM=vscode
+CURSOR_TRACE_ID=65d29ce147b34a29b8e19cbe56eae92e
+SSH_AGENT_LAUNCHER=openssh
+SSH_AUTH_SOCK=/run/user/1000/keyring/ssh
+GSETTINGS_SCHEMA_DIR=/tmp/.mount_Cursor86xCWI/usr/share/glib-2.0/schemas/:
+CONDA_PYTHON_EXE=/home/adria/anaconda3/bin/python
+ORIGINAL_XDG_CURRENT_DESKTOP=GNOME
+SHELL=/bin/bash
+ARGV0=/home/adria/Cursor-0.49.5-x86_64.AppImage
+QT_ACCESSIBILITY=1
+GDMSESSION=gnome
+CONDA_DEFAULT_ENV=cuems_debian12
+LC_MEASUREMENT=ca_ES.UTF-8
+VSCODE_GIT_ASKPASS_EXTRA_ARGS=
+QT_IM_MODULE=ibus
+VIRTUAL_ENV=/home/adria/.local/share/hatch/env/virtual/cuemsengine/btOilmyM/cuemsengine
+PWD=/disk/Projects/StageLab/cuems-engine
+CONDA_EXE=/home/adria/anaconda3/bin/conda
+XDG_DATA_DIRS=/tmp/.mount_Cursor86xCWI/usr/share/:/usr/local/share:/usr/share:/usr/share/gnome:/home/adria/.local/share/flatpak/exports/share:/var/lib/flatpak/exports/share:/usr/local/share/:/usr/share/
+LC_NUMERIC=ca_ES.UTF-8
+CONDA_PREFIX=/home/adria/anaconda3/envs/cuems_debian12
+LC_PAPER=ca_ES.UTF-8
+QT_PLUGIN_PATH=/tmp/.mount_Cursor86xCWI/usr/lib/qt4/plugins/:/tmp/.mount_Cursor86xCWI/usr/lib/i386-linux-gnu/qt4/plugins/:/tmp/.mount_Cursor86xCWI/usr/lib/x86_64-linux-gnu/qt4/plugins/:/tmp/.mount_Cursor86xCWI/usr/lib/aarch64-linux-gnu/qt4/plugins/:/tmp/.mount_Cursor86xCWI/usr/lib32/qt4/plugins/:/tmp/.mount_Cursor86xCWI/usr/lib64/qt4/plugins/:/tmp/.mount_Cursor86xCWI/usr/lib/qt5/plugins/:/tmp/.mount_Cursor86xCWI/usr/lib/i386-linux-gnu/qt5/plugins/:/tmp/.mount_Cursor86xCWI/usr/lib/x86_64-linux-gnu/qt5/plugins/:/tmp/.mount_Cursor86xCWI/usr/lib/aarch64-linux-gnu/qt5/plugins/:/tmp/.mount_Cursor86xCWI/usr/lib32/qt5/plugins/:/tmp/.mount_Cursor86xCWI/usr/lib64/qt5/plugins/:
+VTE_VERSION=7006
+
diff --git a/src/cuems/display.py b/dev/display.py
similarity index 100%
rename from src/cuems/display.py
rename to dev/display.py
diff --git a/dev/editor-engine-commands.txt b/dev/editor-engine-commands.txt
new file mode 100644
index 0000000..830cccc
--- /dev/null
+++ b/dev/editor-engine-commands.txt
@@ -0,0 +1,10 @@
+{"action" : "project_ready", "action_uuid": action_uuid, "value" : unix_name}
+{"action" : "hw_discovery", "action_uuid": action_uuid}
+{"action" : "project_deploy", "action_uuid": action_uuid, "value" : unix_name}
+
+engine responses:
+{'type':'project_ready', 'action_uuid':self._editor_request_uuid, 'value':'OK'}
+{'type':'project_ready', 'action_uuid':self._editor_request_uuid, 'value':'OK_deploy_needed'}
+{'type':'project_ready', 'action_uuid':self._editor_request_uuid, 'value':'OK_missing_media'}
+{'type':'hw_discovery', 'action_uuid':self._editor_request_uuid, 'value':'OK'}
+{'type':'error', 'action':'project_ready', 'action_uuid':self._editor_request_uuid, 'value':'Wrong configuration on input/output mappings'}
\ No newline at end of file
diff --git a/dev/network_map.xml b/dev/network_map.xml
new file mode 100644
index 0000000..f194afa
--- /dev/null
+++ b/dev/network_map.xml
@@ -0,0 +1,14 @@
+<?xml version='1.0' encoding='utf-8'?>
+<cms:CuemsNetworkMap xmlns:cms="https://stagelab.coop/cuems" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="https://stagelab.coop/cuems /etc/cuems/network_map.xsd">
+    <CuemsNodeDict>
+        <node>
+            <uuid>0367f391-ebf4-48b2-9f26-000000000001</uuid>
+            <mac>jump._cuems_</mac>
+            <name>jump._cuems_nodeconf._tcp.local.</name>
+            <node_type>NodeType.master</node_type>
+            <ip>172.17.0.1</ip>
+            <adopted>True</adopted>
+            <online>True</online>
+        </node>
+    </CuemsNodeDict>
+</cms:CuemsNetworkMap>
diff --git a/dev/network_map.xsd b/dev/network_map.xsd
new file mode 100644
index 0000000..7473c6a
--- /dev/null
+++ b/dev/network_map.xsd
@@ -0,0 +1,48 @@
+<?xml version="1.0" encoding="utf-8"?>
+<xs:schema targetNamespace="https://stagelab.coop/cuems" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:cms="https://stagelab.coop/cuems">
+    <xs:element name="CuemsNetworkMap">
+        <xs:complexType>
+            <xs:sequence>
+                <xs:element name="CuemsNodeDict" minOccurs="0" maxOccurs="1" type="cms:NodeDictType" />
+            </xs:sequence>
+        </xs:complexType>
+    </xs:element>
+
+    <xs:complexType name="NodeDictType">
+        <xs:sequence>
+            <xs:element name="CuemsNode" minOccurs="0" maxOccurs="unbounded" type="cms:NodeType" />
+        </xs:sequence>
+    </xs:complexType>
+
+    <xs:complexType name="NodeType">
+        <xs:sequence>
+            <!-- <xs:element name="present" minOccurs="1" maxOccurs="1" type="cms:NonEmptyString"/> -->
+            <xs:element name="uuid" minOccurs="1" maxOccurs="1" type="xs:string"/>
+            <xs:element name="mac" minOccurs="1" maxOccurs="1" type="cms:NonEmptyString"/>
+            <xs:element name="name" minOccurs="1" maxOccurs="1" type="cms:NonEmptyString"/>
+            <xs:element name="node_type" minOccurs="1" maxOccurs="1" type="cms:NonEmptyString"/>
+            <xs:element name="ip" minOccurs="1" maxOccurs="1" type="cms:NonEmptyString"/>
+            <xs:element name="port" minOccurs="1" maxOccurs="1" type="cms:NonEmptyString"/>
+        </xs:sequence>
+    </xs:complexType>
+
+    <xs:complexType name="PutType">
+        <xs:sequence>
+            <xs:element name="name" minOccurs="1" maxOccurs="1" type="cms:NonEmptyString"></xs:element>
+            <xs:element name="mappings">
+                <xs:complexType>
+                    <xs:sequence>
+                        <xs:element name="mapped_to" minOccurs="1" maxOccurs="unbounded" type="xs:string"></xs:element>
+                    </xs:sequence>
+                </xs:complexType>
+            </xs:element>
+        </xs:sequence>
+    </xs:complexType>
+
+    <xs:simpleType name="NonEmptyString">
+        <xs:restriction base="xs:string">
+            <xs:minLength value="1" />
+            <xs:pattern value=".*[^\s].*" />
+        </xs:restriction>
+    </xs:simpleType>
+</xs:schema>
diff --git a/dev/osc.py b/dev/osc.py
new file mode 100644
index 0000000..3f96ed3
--- /dev/null
+++ b/dev/osc.py
@@ -0,0 +1,85 @@
+
+from time import sleep
+import sys
+import inspect
+
+TEST_STR = 'goo'
+
+def print_test(x: str = TEST_STR):
+    frame = sys._getframe(0)
+    print(frame)
+    print(frame.f_back)
+    print(inspect.getmodule(frame))
+    print(inspect.getmodule(frame.f_back))
+    print(frame.f_code.co_name)
+    print(f'name: {__name__}')
+    print(f'func name: {print_test.__name__}')
+    print(f'module: {print_test.__module__}')
+    print(f'constant: {x}')
+
+
+if __name__ == '__main__':
+
+    test_endpoints = {
+        # "/test1": [ValueType.Int, print_callback, 10],
+        # "/test2": [ValueType.Int, print_callback, 20],
+        "/test3": [ValueType.Int, print_callback, 30],
+        "/test4": [ValueType.Int, print_callback, 40],
+        # "/test/subcmd": [ValueType.Int, None, 330]
+    }
+    os = OssiaServer(log = True, endpoints = test_endpoints)
+            
+    iterate_on_devices(os.device.root_node)
+
+    test_endpoints = {
+        "/test1": [ValueType.Int, print_callback],
+        "/test2": [ValueType.Int, print_callback, 10],
+        "/test3": [ValueType.Int, print_callback, 20],
+        "/test4": [ValueType.Int, print_callback, 30]
+    }
+
+    ro = OssiaClient(
+        endpoints = test_endpoints,
+        # remote_type = RemoteDevices.OSCQUERY
+    )
+
+    iterate_on_devices(ro.device.root_node)
+
+    print("Inner values")
+    frame = sys._getframe(0)
+    print(frame)
+    print(frame.f_back)
+    print(inspect.getmodule(frame))
+    print(frame.f_code.co_name)
+
+    print("Outer values")
+    print_test()
+
+    s = inspect.stack()
+    print("Called values")
+    print(f'name: {iterate_on_devices.__name__}')
+    print(f'qualname: {iterate_on_devices.__qualname__}')
+    print(f'module: {iterate_on_devices.__module__}')
+    print(f'class: {iterate_on_devices.__class__}')
+    print(f'global name: {__name__}')
+    print(f'global file: {__file__}')
+    print(f'global annotations: {__annotations__}')
+    print(inspect.getmodule(iterate_on_devices))
+
+    try:
+        while True:
+            # pass
+            in_str = input('[?] Usage: <path>:<value>\n')
+            if in_str:
+                path, value = in_str.split(":")
+                try:
+                    print(f"[+] Path: {path}, Value: {int(value)}")
+                    ro.set_value(path, int(value))
+                except Exception as e:
+                    print(f'[!] {e}')
+                in_str = None
+            else:
+                sleep(0.01)
+    except KeyboardInterrupt as e:
+        print(": KeyboardInterrupt recieved")
+        print("Server Ending...")
diff --git a/dev/ossiaServerOld.py b/dev/ossiaServerOld.py
new file mode 100644
index 0000000..f331054
--- /dev/null
+++ b/dev/ossiaServerOld.py
@@ -0,0 +1,121 @@
+# from threading import Thread
+from pyossia import LocalDevice, ValueType
+from typing import Union
+
+from OssiaNodes import OssiaNodes
+
+OSC_CLIENT_PORT = 9989
+OSC_REQ_PORT = 9091
+OSCQUERY_REQ_PORT = 40250
+OSCQUERY_WS_PORT = 40255
+
+"""LocalDevice.create_oscquery_server
+
+    Make the local device able to handle oscquery request
+    @param int port where OSC requests have to be sent by any remote client to
+        deal with the local device
+    @param int port where WebSocket requests have to be sent by any remote client
+        to deal with the local device
+    @param bool enable protocol logging
+    @return bool */
+"""
+
+"""LocalDevice.create_osc_server
+
+    Make the local device able to handle osc request and emit osc message
+    @param int port where osc messages have to be sent to be catch by a remote
+        client to listen to the local device
+    @param int port where OSC requests have to be sent by any remote client to
+        deal with the local device
+    @param bool enable protocol logging
+    @return bool
+"""
+
+class OssiaServer(OssiaNodes):
+    def __init__(
+            self,
+            name: str = None,
+            log: bool = False,
+            endpoints: Union[dict, list] = None
+        ):
+        super().__init__()
+        if not name:
+            name = self.__class__.__name__
+        self.device = LocalDevice(name)
+        self.setup_server(log)
+        if endpoints:
+            self.create_endpoints(endpoints)
+
+    def setup_server(self, logging: bool = False):
+        """Create a local OSC server
+        
+        Create a local device and set it up to handle oscquery and osc requests
+        
+        Parameters:
+        logging (bool): enable protocol logging. Default is False
+        """
+        try:
+            self.device.create_oscquery_server(
+                OSCQUERY_REQ_PORT, OSCQUERY_WS_PORT, logging
+            )
+            self.device.create_osc_server(
+                "127.0.0.1", OSC_CLIENT_PORT, OSC_REQ_PORT, logging
+            )
+        except Exception as e:
+            print(e)
+
+
+"""Logging testing functions"""
+def print_node(node):
+    print(node)
+    params = node.get_parameters()
+    # print(str(params)) # Parameter objects addresses
+    for param in params:
+        print(f"Parameter info: [node: {param.node}, value: {param.value}, value_type: {param.value_type}]")
+
+def iterate_on_devices(node):
+    print_node(node)
+    for child in node.children():
+        print_node(child)
+        if child.children():
+            iterate_on_devices(child)
+        else:
+            print("No children")
+
+def print_callback(node, value):
+    print(
+        f"Parameter changed at {node} to {value} [node value: {node.parameter.value}]"
+    )
+
+if __name__ == "__main__":
+
+    from time import sleep
+
+    test_endpoints = {
+        "/test1": [ValueType.Int, print_callback, 10],
+        "/test2": [ValueType.Int, print_callback, 20],
+        "/test3": [ValueType.Int, print_callback, 30],
+        "/test4": [ValueType.Int, print_callback, 40],
+        "/test/subcmd": [ValueType.Int, None, 330]
+    }
+    os = OssiaServer(log = True, endpoints = test_endpoints)
+        
+    iterate_on_devices(os.device.root_node)
+
+    try:
+        while True:
+            # pass
+            in_str = input('[?] Usage: <path>:<value>\n')
+            if in_str:
+                path, value = in_str.split(":")
+                try:
+                    print(f"[+] Path: {path}, Value: {int(value)}")
+                    os.set_value(path, int(value))
+                except Exception as e:
+                    print(f'[!] {e}')
+                in_str = None
+            else:
+                sleep(0.01)
+    except KeyboardInterrupt as e:
+        print(": KeyboardInterrupt recieved")
+        print("Server Ending...")
diff --git a/dev/remoteOssiaOld.py b/dev/remoteOssiaOld.py
new file mode 100644
index 0000000..345a9cc
--- /dev/null
+++ b/dev/remoteOssiaOld.py
@@ -0,0 +1,72 @@
+from enum import Enum
+from pyossia.ossia_python import OSCDevice, OSCQueryDevice, ValueType
+from time import sleep
+from typing import Union
+
+from OssiaNodes import OssiaNodes
+
+OSC_CLIENT_PORT = 9989
+OSC_REQ_PORT = 9091
+OSCQUERY_REQ_PORT = 40250
+OSCQUERY_WS_PORT = 40255
+
+def new_osc_device(cls) -> OSCDevice:
+    x = OSCDevice(
+        "cuems",
+        # f"ws://{cls.host}:{OSCQUERY_WS_PORT}",
+        "127.0.0.1",
+        OSC_REQ_PORT,
+        OSC_CLIENT_PORT
+    )
+    return x
+
+def new_oscquery_device(cls) -> OSCQueryDevice:
+    x = OSCQueryDevice(
+        "cuems", cls.url, OSCQUERY_REQ_PORT
+    )
+    x.update()
+    return x
+
+class RemoteDevices(Enum):
+    OSC = new_osc_device
+    OSCQUERY = new_oscquery_device
+    DISPATCHER = None
+
+class RemoteOssia(OssiaNodes):
+    def __init__(
+        self,
+        host: str = "127.0.0.1",
+        remote_type: RemoteDevices = RemoteDevices.OSC,
+        endpoints: Union[dict, list] = None
+    ):
+        super().__init__()
+        self.host = host
+        print(f"Using remote device: {remote_type.__annotations__}")
+        self.bind_device(remote_type)
+        if endpoints:
+            self.create_endpoints(endpoints)
+
+    def bind_device(self, remote_type: RemoteDevices):
+        self.device = remote_type(self)
+
+if __name__ == "__main__":
+    
+    from dev.ossiaServerOld import iterate_on_devices, print_callback
+
+    test_endpoints = {
+        "/test1": [ValueType.Int, print_callback],
+        "/test2": [ValueType.Int, print_callback]
+    }
+    
+    ro = RemoteOssia(
+        endpoints = test_endpoints
+    )
+    
+    iterate_on_devices(ro.device.root_node)
+
+    try:
+        while True:
+            pass
+    except KeyboardInterrupt as e:
+        print(": KeyboardInterrupt recieved")
+        print("Remote Ending...")
diff --git a/dev/run_cpu_tests.py b/dev/run_cpu_tests.py
new file mode 100644
index 0000000..266fe70
--- /dev/null
+++ b/dev/run_cpu_tests.py
@@ -0,0 +1,165 @@
+#!/usr/bin/env python3
+"""
+Test runner script for CPU usage tests.
+This script provides an easy way to run CPU usage tests with different options.
+"""
+
+import sys
+import subprocess
+import argparse
+from pathlib import Path
+
+def run_tests(test_pattern="test_cpu_usage.py", markers=None, verbose=False, coverage=False):
+    """Run the CPU usage tests with specified options"""
+    
+    # Build pytest command
+    cmd = ["python", "-m", "pytest"]
+    
+    # Add test file pattern
+    cmd.append(f"tests/{test_pattern}")
+    
+    # Add markers if specified
+    if markers:
+        cmd.extend(["-m", markers])
+    
+    # Add verbose flag
+    if verbose:
+        cmd.append("-v")
+    
+    # Add coverage if requested
+    if coverage:
+        cmd.extend(["--cov=src/cuemsengine", "--cov-report=term-missing"])
+    
+    # Add other useful flags
+    cmd.extend([
+        "--tb=short",  # Short traceback format
+        "--durations=10",  # Show 10 slowest tests
+        "--strict-markers",  # Enforce marker definitions
+    ])
+    
+    print(f"Running command: {' '.join(cmd)}")
+    print("-" * 60)
+    
+    try:
+        result = subprocess.run(cmd, check=True, capture_output=False)
+        print("-" * 60)
+        print("Tests completed successfully!")
+        return True
+    except subprocess.CalledProcessError as e:
+        print("-" * 60)
+        print(f"Tests failed with exit code: {e.returncode}")
+        return False
+    except KeyboardInterrupt:
+        print("\nTests interrupted by user")
+        return False
+
+def main():
+    parser = argparse.ArgumentParser(
+        description="Run CPU usage tests for BaseEngine",
+        formatter_class=argparse.RawDescriptionHelpFormatter,
+        epilog="""
+Examples:
+  # Run all CPU tests
+  python run_cpu_tests.py
+  
+  # Run only fast tests (exclude slow ones)
+  python run_cpu_tests.py --markers "not slow"
+  
+  # Run only integration tests
+  python run_cpu_tests.py --markers "integration"
+  
+  # Run with coverage
+  python run_cpu_tests.py --coverage
+  
+  # Run specific test file
+  python run_cpu_tests.py --test-file test_cpu_usage.py
+        """
+    )
+    
+    parser.add_argument(
+        "--test-file",
+        default="test_cpu_usage.py",
+        help="Test file pattern to run (default: test_cpu_usage.py)"
+    )
+    
+    parser.add_argument(
+        "--markers",
+        help="Pytest markers to include/exclude (e.g., 'not slow', 'integration')"
+    )
+    
+    parser.add_argument(
+        "--verbose", "-v",
+        action="store_true",
+        help="Run tests in verbose mode"
+    )
+    
+    parser.add_argument(
+        "--coverage",
+        action="store_true",
+        help="Generate coverage report"
+    )
+    
+    parser.add_argument(
+        "--list-tests",
+        action="store_true",
+        help="List available tests without running them"
+    )
+    
+    args = parser.parse_args()
+    
+    if args.list_tests:
+        print("Available CPU usage tests:")
+        print("-" * 40)
+        print("test_base_engine_idle_cpu_usage")
+        print("test_base_engine_continuous_operation_cpu_usage")
+        print("test_base_engine_memory_usage")
+        print("test_base_engine_cpu_spike_handling")
+        print("test_base_engine_long_running_stability")
+        print("test_base_engine_cleanup_cpu_usage")
+        print("\nMarkers:")
+        print("- slow: Long-running tests")
+        print("- integration: Integration tests")
+        print("- cuems: CUEMS engine tests")
+        return
+    
+    # Check if we're in the right directory
+    if not Path("tests").exists():
+        print("Error: Please run this script from the project root directory")
+        print("Current directory:", Path.cwd())
+        sys.exit(1)
+    
+    # Check if pytest is available
+    try:
+        import pytest
+    except ImportError:
+        print("Error: pytest is not installed. Please install it first:")
+        print("pip install pytest")
+        sys.exit(1)
+    
+    # Check if psutil is available
+    try:
+        import psutil
+    except ImportError:
+        print("Error: psutil is not installed. Please install it first:")
+        print("pip install psutil")
+        sys.exit(1)
+    
+    print("CUEMS Engine CPU Usage Tests")
+    print("=" * 40)
+    
+    success = run_tests(
+        test_pattern=args.test_file,
+        markers=args.markers,
+        verbose=args.verbose,
+        coverage=args.coverage
+    )
+    
+    if success:
+        print("\nAll tests passed! 🎉")
+        sys.exit(0)
+    else:
+        print("\nSome tests failed! ❌")
+        sys.exit(1)
+
+if __name__ == "__main__":
+    main() 
diff --git a/src/test_json_files/test1.json b/dev/test_json_files/test1.json
similarity index 100%
rename from src/test_json_files/test1.json
rename to dev/test_json_files/test1.json
diff --git a/dev/test_xml_files/default_mappings.xml b/dev/test_xml_files/default_mappings.xml
new file mode 100644
index 0000000..8f3ec7c
--- /dev/null
+++ b/dev/test_xml_files/default_mappings.xml
@@ -0,0 +1,153 @@
+<?xml version='1.0' encoding='utf-8'?>
+<cms:CuemsProjectMappings xmlns:cms="https://stagelab.coop/cuems/"
+    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+    xsi:schemaLocation="https://stagelab.coop/cuems/ /etc/cuems/project_mappings.xsd">
+    <number_of_nodes>1</number_of_nodes>
+    <default_audio_input>0367f391-ebf4-48b2-9f26-000000000001_system:capture_1</default_audio_input>
+    <default_audio_output>0367f391-ebf4-48b2-9f26-000000000001_system:playback_1</default_audio_output>
+    <default_video_input />
+    <default_video_output>0367f391-ebf4-48b2-9f26-000000000001_0</default_video_output>
+    <default_dmx_input />
+    <default_dmx_output />
+    <nodes>
+        <node>
+            <uuid>0367f391-ebf4-48b2-9f26-000000000001</uuid>
+            <mac>2cf05d21cca3</mac>
+            <audio>
+                <outputs>
+                    <output>
+                        <id>0</id>
+                        <name>system:playback_1</name>
+                        <mappings>
+                            <mapped_to>system:playback_1</mapped_to>
+                        </mappings>
+                    </output>
+                    <output>
+                        <id>1</id>
+                        <name>system:playback_2</name>
+                        <mappings>
+                            <mapped_to>system:playback_2</mapped_to>
+                        </mappings>
+                    </output>
+                </outputs>
+                <inputs>
+                    <input>
+                        <id>0</id>
+                        <name>system:capture_1</name>
+                        <mappings>
+                            <mapped_to>system:capture_1</mapped_to>
+                        </mappings>
+                    </input>
+                    <input>
+                        <id>1</id>
+                        <name>system:capture_2</name>
+                        <mappings>
+                            <mapped_to>system:capture_2</mapped_to>
+                        </mappings>
+                    </input>
+                </inputs>
+            </audio>
+            <video>
+                <outputs>
+                    <output>
+                        <id>0</id>
+                        <name>0</name>
+                        <canvas_region>
+                            <x>0</x>
+                            <y>0</y>
+                            <width>1</width>
+                            <height>1</height>
+                        </canvas_region>
+                        <mappings>
+                            <mapped_to>salida_001</mapped_to>
+                        </mappings>
+                    </output>
+                    <output>
+                        <id>1</id>
+                        <name>1</name>
+                        <canvas_region>
+                            <x>0</x>
+                            <y>0</y>
+                            <width>1</width>
+                            <height>1</height>
+                        </canvas_region>
+                        <mappings>
+                            <mapped_to>salida_002</mapped_to>
+                        </mappings>
+                    </output>
+                </outputs>
+            </video>
+            <dmx />
+        </node>
+        <node>
+            <uuid>0367f391-ebf4-48b2-9f26-000000000002</uuid>
+            <mac>2cf05d21cca3</mac>
+            <audio>
+                <outputs>
+                    <output>
+                        <id>0</id>
+                        <name>system:playback_1</name>
+                        <mappings>
+                            <mapped_to>system:playback_1</mapped_to>
+                        </mappings>
+                    </output>
+                    <output>
+                        <id>1</id>
+                        <name>system:playback_2</name>
+                        <mappings>
+                            <mapped_to>system:playback_2</mapped_to>
+                        </mappings>
+                    </output>
+                </outputs>
+                <inputs>
+                    <input>
+                        <id>0</id>
+                        <name>system:capture_1</name>
+                        <mappings>
+                            <mapped_to>system:capture_1</mapped_to>
+                        </mappings>
+                    </input>
+                    <input>
+                        <id>1</id>
+                        <name>system:capture_2</name>
+                        <mappings>
+                            <mapped_to>system:capture_2</mapped_to>
+                        </mappings>
+                    </input>
+                </inputs>
+            </audio>
+            <video>
+                <outputs>
+                    <output>
+                        <id>0</id>
+                        <name>0</name>
+                        <canvas_region>
+                            <x>0</x>
+                            <y>0</y>
+                            <width>1</width>
+                            <height>1</height>
+                        </canvas_region>
+                        <mappings>
+                            <mapped_to>salida_001</mapped_to>
+                        </mappings>
+                    </output>
+                    <output>
+                        <id>1</id>
+                        <name>1</name>
+                        <canvas_region>
+                            <x>0</x>
+                            <y>0</y>
+                            <width>1</width>
+                            <height>1</height>
+                        </canvas_region>
+                        <mappings>
+                            <mapped_to>salida_002</mapped_to>
+                        </mappings>
+                    </output>
+                </outputs>
+            </video>
+            <dmx />
+        </node>
+    </nodes>
+    <new_nodes></new_nodes>
+</cms:CuemsProjectMappings>
diff --git a/dev/test_xml_files/network_map.xml b/dev/test_xml_files/network_map.xml
new file mode 100644
index 0000000..7df57f2
--- /dev/null
+++ b/dev/test_xml_files/network_map.xml
@@ -0,0 +1,25 @@
+<?xml version='1.0' encoding='utf-8'?>
+<cms:CuemsNetworkMap xmlns:cms="https://stagelab.coop/cuems/"
+    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+    xsi:schemaLocation="https://stagelab.coop/cuems/ https://stagelab.coop/cuems/network_map.xsd">
+    <node_list>
+        <node>
+            <uuid>0367f391-ebf4-48b2-9f26-000000000001</uuid>
+            <mac>2cf05d21cca3</mac>
+            <name>2cf05d21cca3._cuems_nodeconf._tcp.local.</name>
+            <node_type>NodeType.master</node_type>
+            <ip>192.168.1.10</ip>
+            <adopted>True</adopted>
+            <online>True</online>
+        </node>
+        <node>
+            <uuid>0367f391-ebf4-48b2-9f26-000000000003</uuid>
+            <mac>0800276db133</mac>
+            <name>0800276db133._cuems_nodeconf._tcp.local.</name>
+            <node_type>NodeType.slave</node_type>
+            <ip>192.168.1.101</ip>
+            <adopted>False</adopted>
+            <online>False</online>
+        </node>
+    </node_list>
+</cms:CuemsNetworkMap>
diff --git a/src/test_xml_files/outputs.xml b/dev/test_xml_files/outputs.xml
similarity index 65%
rename from src/test_xml_files/outputs.xml
rename to dev/test_xml_files/outputs.xml
index ff8b3f0..0c8beac 100644
--- a/src/test_xml_files/outputs.xml
+++ b/dev/test_xml_files/outputs.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<cms:CuemsOutputs xmlns:cms="http://stagelab.net/cuems" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://stagelab.net/cuems ../cuems/outputs.xsd">
+<cms:CuemsOutputs xmlns:cms="https://stagelab.coop/cuems" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="https://stagelab.coop/cuems ../cuems/outputs.xsd">
     <video_outputs>
         <output>0</output>
         <output>1</output>
@@ -10,4 +10,4 @@
         <output>system:playback_2</output>
     </audio_outputs>
     <default_audio_output>system:playback_1</default_audio_output>
-</cms:CuemsOutputs>
\ No newline at end of file
+</cms:CuemsOutputs>
diff --git a/dev/test_xml_files/project_mappings.xml b/dev/test_xml_files/project_mappings.xml
new file mode 100644
index 0000000..bea9600
--- /dev/null
+++ b/dev/test_xml_files/project_mappings.xml
@@ -0,0 +1,114 @@
+<?xml version='1.0' encoding='utf-8'?>
+<cms:CuemsProjectMappings xmlns:cms="https://stagelab.coop/cuems/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="https://stagelab.coop/cuems/ ../cuems/project_mappings.xsd">
+    <number_of_nodes>2</number_of_nodes>
+    <default_audio_input>0367f391-ebf4-48b2-9f26-000000000001 system:capture_1</default_audio_input>
+    <default_audio_output>0367f391-ebf4-48b2-9f26-000000000001 system:playback_1</default_audio_output>
+    <default_video_input />
+    <default_video_output>0367f391-ebf4-48b2-9f26-000000000001 0</default_video_output>
+    <default_dmx_input />
+    <default_dmx_output />
+    <nodes>
+        <node>
+            <uuid>0367f391-ebf4-48b2-9f26-000000000001</uuid>
+            <mac>2cf05d21cca3</mac>
+            <audio>
+                <outputs>
+                    <output>
+                        <id>0</id>
+                        <name>system:playback_1</name>
+                        <mappings>
+                            <mapped_to>system:playback_1</mapped_to>
+                            <mapped_to>Out1</mapped_to>
+                        </mappings>
+                    </output>
+                    <output>
+                        <id>1</id>
+                        <name>system:playback_2</name>
+                        <mappings>
+                            <mapped_to>system:playback_2</mapped_to>
+                        </mappings>
+                    </output>
+                </outputs>
+                <inputs>
+                    <input>
+                        <id>0</id>
+                        <name>system:capture_1</name>
+                        <mappings>
+                            <mapped_to>system:capture_1</mapped_to>
+                        </mappings>
+                    </input>
+                    <input>
+                        <id>1</id>
+                        <name>system:capture_2</name>
+                        <mappings>
+                            <mapped_to>system:capture_2</mapped_to>
+                        </mappings>
+                    </input>
+                </inputs>
+            </audio>
+            <video>
+                <outputs>
+                    <output>
+                        <id>0</id>
+                        <name>0</name>
+                        <canvas_region>
+                            <x>0</x>
+                            <y>0</y>
+                            <width>1</width>
+                            <height>1</height>
+                        </canvas_region>
+                        <mappings>
+                            <mapped_to>0</mapped_to>
+                            <mapped_to>VideoOut1</mapped_to>
+                            <mapped_to>VideoOut2</mapped_to>
+                            <mapped_to>VideoOut3</mapped_to>
+                            <mapped_to>VideoOut4</mapped_to>
+                        </mappings>
+                    </output>
+                </outputs>
+            </video>
+            <dmx />
+        </node>
+        <node>
+            <uuid>0367f391-ebf4-48b2-9f26-000000000003</uuid>
+            <mac>0800276db133</mac>
+            <audio>
+                <outputs>
+                    <output>
+                        <id>0</id>
+                        <name>system:playback_1</name>
+                        <mappings>
+                            <mapped_to>system:playback_1</mapped_to>
+                        </mappings>
+                    </output>
+                    <output>
+                        <id>1</id>
+                        <name>system:playback_2</name>
+                        <mappings>
+                            <mapped_to>system:playback_2</mapped_to>
+                        </mappings>
+                    </output>
+                </outputs>
+            </audio>
+            <video>
+                <outputs>
+                    <output>
+                        <id>0</id>
+                        <name>0</name>
+                        <canvas_region>
+                            <x>0</x>
+                            <y>0</y>
+                            <width>1</width>
+                            <height>1</height>
+                        </canvas_region>
+                        <mappings>
+                            <mapped_to>0</mapped_to>
+                        </mappings>
+                    </output>
+                </outputs>
+            </video>
+            <dmx />
+        </node>
+    </nodes>
+    <new_nodes></new_nodes>
+</cms:CuemsProjectMappings>
diff --git a/dev/test_xml_files/project_settings.xml b/dev/test_xml_files/project_settings.xml
new file mode 100644
index 0000000..51b1563
--- /dev/null
+++ b/dev/test_xml_files/project_settings.xml
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<cms:CuemsProjectSettings xmlns:cms="https://stagelab.coop/cuems/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="https://stagelab.coop/cuems/ ../cuems/project_settings.xsd">
+
+</cms:CuemsProjectSettings>
diff --git a/dev/test_xml_files/projects/complex_test/project_mappings.xml b/dev/test_xml_files/projects/complex_test/project_mappings.xml
new file mode 100644
index 0000000..b994815
--- /dev/null
+++ b/dev/test_xml_files/projects/complex_test/project_mappings.xml
@@ -0,0 +1,93 @@
+<?xml version='1.0' encoding='utf-8'?>
+<cms:CuemsProjectMappings xmlns:cms="https://stagelab.coop/cuems/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="https://stagelab.coop/cuems/ ../cuems/project_mappings.xsd">
+    <number_of_nodes>2</number_of_nodes>
+    <default_audio_input>0367f391-ebf4-48b2-9f26-000000000001 system:capture_1</default_audio_input>
+    <default_audio_output>0367f391-ebf4-48b2-9f26-000000000001 system:playback_1</default_audio_output>
+    <default_video_input />
+    <default_video_output>0367f391-ebf4-48b2-9f26-000000000001 0</default_video_output>
+    <default_dmx_input />
+    <default_dmx_output />
+    <nodes>
+        <node>
+            <uuid>0367f391-ebf4-48b2-9f26-000000000001</uuid>
+            <mac>2cf05d21cca3</mac>
+            <audio>
+                <outputs>
+                    <output>
+                        <name>system:playback_1</name>
+                        <mappings>
+                            <mapped_to>system:playback_1</mapped_to>
+                            <mapped_to>Out1</mapped_to>
+                        </mappings>
+                    </output>
+                    <output>
+                        <name>system:playback_2</name>
+                        <mappings>
+                            <mapped_to>system:playback_2</mapped_to>
+                        </mappings>
+                    </output>
+                </outputs>
+                <inputs>
+                    <input>
+                        <name>system:capture_1</name>
+                        <mappings>
+                            <mapped_to>system:capture_1</mapped_to>
+                        </mappings>
+                    </input>
+                    <input>
+                        <name>system:capture_2</name>
+                        <mappings>
+                            <mapped_to>system:capture_2</mapped_to>
+                        </mappings>
+                    </input>
+                </inputs>
+            </audio>
+            <video>
+                <outputs>
+                    <output>
+                        <name>0</name>
+                        <mappings>
+                            <mapped_to>0</mapped_to>
+                            <mapped_to>VideoOut1</mapped_to>
+                            <mapped_to>VideoOut2</mapped_to>
+                            <mapped_to>VideoOut3</mapped_to>
+                            <mapped_to>VideoOut4</mapped_to>
+                        </mappings>
+                    </output>
+                </outputs>
+            </video>
+            <dmx />
+        </node>
+        <node>
+            <uuid>0367f391-ebf4-48b2-9f26-000000000003</uuid>
+            <mac>0800276db133</mac>
+            <audio>
+                <outputs>
+                    <output>
+                        <name>system:playback_1</name>
+                        <mappings>
+                            <mapped_to>system:playback_1</mapped_to>
+                        </mappings>
+                    </output>
+                    <output>
+                        <name>system:playback_2</name>
+                        <mappings>
+                            <mapped_to>system:playback_2</mapped_to>
+                        </mappings>
+                    </output>
+                </outputs>
+            </audio>
+            <video>
+                <outputs>
+                    <output>
+                        <name>0</name>
+                        <mappings>
+                            <mapped_to>0</mapped_to>
+                        </mappings>
+                    </output>
+                </outputs>
+            </video>
+            <dmx />
+        </node>
+    </nodes>
+</cms:CuemsProjectMappings>
diff --git a/src/test_xml_files/script_more_complex.xml b/dev/test_xml_files/projects/complex_test/script.xml
similarity index 80%
rename from src/test_xml_files/script_more_complex.xml
rename to dev/test_xml_files/projects/complex_test/script.xml
index 8ff0594..c08b787 100644
--- a/src/test_xml_files/script_more_complex.xml
+++ b/dev/test_xml_files/projects/complex_test/script.xml
@@ -1,98 +1,98 @@
 <?xml version="1.1" encoding="UTF-8"?>
 <cms:CuemsProject
-    xmlns:cms="http://stagelab.net/cuems"
+    xmlns:cms="https://stagelab.coop/cuems/"
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://stagelab.net/cuems ../cuems/script.xsd">
+    xsi:schemaLocation="https://stagelab.coop/cuems/ ../cuems/script.xsd">
     <CuemsScript>
-        <uuid>12345678-aaaa-aaaa-aaaa-123456789000</uuid>
+        <id>12345678-aaaa-4aaa-abcd-123456789000</id>
         <name>Test Main Script</name>
         <description>This is the description text of the project</description>
         <created>2020-01-01T00:00:00.000</created>
         <modified>2020-01-01T00:00:00.000</modified>
+        <ui_properties></ui_properties>
         <CueList>
-            <uuid>12345678-aaaa-aaaa-aaaa-123456789000</uuid>
-            <id>ML</id>
-            <name>Main cuelist id ML</name>
+            <autoload>False</autoload>
             <description>Main cuelist desc id ML</description>
             <enabled>True</enabled>
-            <loaded>False</loaded>
-            <timecode>False</timecode>
+            <id>12345678-aaaa-4aaa-aaaa-123456789000</id>
+            <loop>1</loop>
+            <name>Main cuelist id ML</name>
             <offset>
                 <CTimecode>00:00:00.000</CTimecode>
             </offset>
-            <loop>1</loop>
-            <prewait>
-                <CTimecode>00:00:00.000</CTimecode>
-            </prewait>
+            <post_go>pause</post_go>
             <postwait>
                 <CTimecode>00:00:00.000</CTimecode>
             </postwait>
-            <post_go>pause</post_go>
+            <prewait>
+                <CTimecode>00:00:00.000</CTimecode>
+            </prewait>
             <target></target>
-            <UI_properties>
+            <timecode>False</timecode>
+            <ui_properties>
                 <timeline_position>
                     <x>0</x>
                     <y>0</y>
                 </timeline_position>
-            </UI_properties>
+            </ui_properties>
             <contents>
                 <CueList>
-                    <uuid>12345678-aaaa-aaaa-aaaa-1234567890f0</uuid>
-                    <id>ML</id>
-                    <name>Main cuelist id ML</name>
+                    <autoload>False</autoload>
                     <description>Main cuelist desc id ML</description>
                     <enabled>True</enabled>
-                    <loaded>False</loaded>
-                    <timecode>False</timecode>
+                    <id>12345678-aaaa-4aaa-aaaa-1234567890f0</id>
+                    <loop>1</loop>
+                    <name>Main cuelist id ML</name>
                     <offset>
                         <CTimecode>00:00:00.000</CTimecode>
                     </offset>
-                    <loop>1</loop>
-                    <prewait>
-                        <CTimecode>00:00:00.000</CTimecode>
-                    </prewait>
+                    <post_go>pause</post_go>
                     <postwait>
                         <CTimecode>00:00:00.000</CTimecode>
                     </postwait>
-                    <post_go>pause</post_go>
+                    <prewait>
+                        <CTimecode>00:00:00.000</CTimecode>
+                    </prewait>
                     <target></target>
-                    <UI_properties>
+                    <timecode>False</timecode>
+                    <ui_properties>
                         <timeline_position>
                             <x>0</x>
                             <y>0</y>
                         </timeline_position>
-                    </UI_properties>
+                    </ui_properties>
                     <contents>
                         <AudioCue>
-                            <uuid>12345678-aaaa-aaaa-aaaa-123456789001</uuid>
-                            <id>10</id>
-                            <name>Audio cue id 10</name>
+                            <autoload>False</autoload>
                             <description>Audio cue desc id 10</description>
                             <enabled>True</enabled>
-                            <loaded>False</loaded>
-                            <timecode>False</timecode>
+                            <id>12345678-aaaa-4aaa-aaaa-123456789001</id>
+                            <loop>1</loop>
+                            <name>Audio cue id 10</name>
                             <offset>
                                 <CTimecode>00:00:00.000</CTimecode>
                             </offset>
-                            <loop>1</loop>
-                            <prewait>
-                                <CTimecode>00:00:00.000</CTimecode>
-                            </prewait>
+                            <post_go>go</post_go>
                             <postwait>
                                 <CTimecode>00:00:00.000</CTimecode>
                             </postwait>
-                            <post_go>go</post_go>
+                            <prewait>
+                                <CTimecode>00:00:00.000</CTimecode>
+                            </prewait>
                             <target></target>
-                            <UI_properties>
+                            <timecode>False</timecode>
+                            <ui_properties>
                                 <timeline_position>
                                     <x>0</x>
                                     <y>0</y>
                                 </timeline_position>
-                            </UI_properties>
+                            </ui_properties>
                             <Media>
                                 <file_name>sposa_non_mi_conosci.16.s.wav</file_name>
+                                <id>32afd4cb-a42b-48c8-9bb3-18f273d741fc</id>
+                                <duration>00:00:00.000</duration>
                                 <regions>
-                                    <region>
+                                    <Region>
                                         <id>0</id>
                                         <loop>3</loop>
                                         <in_time>
@@ -101,11 +101,10 @@
                                         <out_time>
                                             <CTimecode>00:01:00.000</CTimecode>
                                         </out_time>
-                                    </region>
+                                    </Region>
                                 </regions>
                             </Media>
-                            <master_vol>100</master_vol>
-                            <Outputs>
+                            <outputs>
                                 <AudioCueOutput>
                                     <output_name>Out1</output_name>
                                     <output_vol>100</output_vol>
@@ -120,38 +119,40 @@
                                         </channel>
                                     </channels>
                                 </AudioCueOutput>
-                            </Outputs>
+                            </outputs>
+                            <master_vol>100</master_vol>
                         </AudioCue>
                         <VideoCue>
-                            <uuid>12345678-aaaa-aaaa-aaaa-123456789002</uuid>
-                            <id>V2</id>
-                            <name>Video cue id V2</name>
+                            <autoload>False</autoload>
                             <description>Video cue desc id V2</description>
                             <enabled>True</enabled>
-                            <loaded>False</loaded>
-                            <timecode>False</timecode>
+                            <id>12345678-aaaa-4aaa-aaaa-123456789002</id>
+                            <loop>1</loop>
+                            <name>Video cue id V2</name>
                             <offset>
                                 <CTimecode>00:00:00.000</CTimecode>
                             </offset>
-                            <loop>1</loop>
-                            <prewait>
-                                <CTimecode>00:00:00.000</CTimecode>
-                            </prewait>
+                            <post_go>pause</post_go>
                             <postwait>
                                 <CTimecode>00:00:00.000</CTimecode>
                             </postwait>
-                            <post_go>pause</post_go>
+                            <prewait>
+                                <CTimecode>00:00:00.000</CTimecode>
+                            </prewait>
                             <target></target>
-                            <UI_properties>
+                            <timecode>False</timecode>
+                            <ui_properties>
                                 <timeline_position>
                                     <x>0</x>
                                     <y>0</y>
                                 </timeline_position>
-                            </UI_properties>
+                            </ui_properties>
                             <Media>
                                 <file_name>sposa_non_mi_conosci.mp4</file_name>
+                                <id>32afeeff-a42b-48c8-9bb3-18f273d741fc</id>
+                                <duration>00:00:00.000</duration>
                                 <regions>
-                                    <region>
+                                    <Region>
                                         <id>0</id>
                                         <loop>3</loop>
                                         <in_time>
@@ -160,10 +161,10 @@
                                         <out_time>
                                             <CTimecode>00:01:00.000</CTimecode>
                                         </out_time>
-                                    </region>
+                                    </Region>
                                 </regions>
                             </Media>
-                            <Outputs>
+                            <outputs>
                                 <VideoCueOutput>
                                     <output_name>VideoOut1</output_name>
                                     <output_geometry>
@@ -178,78 +179,78 @@
                                                 <x>1</x>
                                                 <y>0</y>
                                             </top_right>
-                                            <bott_left>
+                                            <bottom_left>
                                                 <x>0</x>
                                                 <y>1</y>
-                                            </bott_left>
-                                            <bott_right>
+                                            </bottom_left>
+                                            <bottom_right>
                                                 <x>1</x>
                                                 <y>1</y>
-                                            </bott_right>
+                                            </bottom_right>
                                         </corners>
                                     </output_geometry>
                                 </VideoCueOutput>
-                            </Outputs>
+                            </outputs>
                         </VideoCue>
                     </contents>
                 </CueList>
                 <CueList>
-                    <uuid>12345678-aaaa-aaaa-aaaa-1234567890f1</uuid>
-                    <id>ML</id>
-                    <name>Main cuelist id ML</name>
+                    <autoload>False</autoload>
                     <description>Main cuelist desc id ML</description>
                     <enabled>True</enabled>
-                    <loaded>False</loaded>
-                    <timecode>False</timecode>
+                    <id>12345678-aaaa-4aaa-aaaa-1234567890f1</id>
+                    <loop>1</loop>
+                    <name>Main cuelist id ML</name>
                     <offset>
                         <CTimecode>00:00:00.000</CTimecode>
                     </offset>
-                    <loop>1</loop>
-                    <prewait>
-                        <CTimecode>00:00:00.000</CTimecode>
-                    </prewait>
+                    <post_go>pause</post_go>
                     <postwait>
                         <CTimecode>00:00:00.000</CTimecode>
                     </postwait>
-                    <post_go>pause</post_go>
+                    <prewait>
+                        <CTimecode>00:00:00.000</CTimecode>
+                    </prewait>
                     <target></target>
-                    <UI_properties>
+                    <timecode>False</timecode>
+                    <ui_properties>
                         <timeline_position>
                             <x>0</x>
                             <y>0</y>
                         </timeline_position>
-                    </UI_properties>
+                    </ui_properties>
                     <contents>
                         <VideoCue>
-                            <uuid>12345678-aaaa-aaaa-aaaa-123456789003</uuid>
-                            <id>V1</id>
-                            <name>Video cue id V1</name>
+                            <autoload>False</autoload>
                             <description>Video cue desc id V1</description>
                             <enabled>True</enabled>
-                            <loaded>False</loaded>
-                            <timecode>False</timecode>
+                            <id>12345678-aaaa-4aaa-aaaa-123456789003</id>
+                            <loop>1</loop>
+                            <name>Video cue id V1</name>
                             <offset>
                                 <CTimecode>00:00:00.000</CTimecode>
                             </offset>
-                            <loop>1</loop>
-                            <prewait>
-                                <CTimecode>00:00:00.000</CTimecode>
-                            </prewait>
+                            <post_go>go</post_go>
                             <postwait>
                                 <CTimecode>00:00:00.000</CTimecode>
                             </postwait>
-                            <post_go>go</post_go>
+                            <prewait>
+                                <CTimecode>00:00:00.000</CTimecode>
+                            </prewait>
                             <target></target>
-                            <UI_properties>
+                            <timecode>False</timecode>
+                            <ui_properties>
                                 <timeline_position>
                                     <x>0</x>
                                     <y>0</y>
                                 </timeline_position>
-                            </UI_properties>
+                            </ui_properties>
                             <Media>
                                 <file_name>strokes.mp4</file_name>
+                                <id>42afd4cb-a42b-48c8-9bb3-18f273d741fc</id>
+                                <duration>00:00:00.000</duration>
                                 <regions>
-                                    <region>
+                                    <Region>
                                         <id>0</id>
                                         <loop>3</loop>
                                         <in_time>
@@ -258,10 +259,10 @@
                                         <out_time>
                                             <CTimecode>00:01:10.000</CTimecode>
                                         </out_time>
-                                    </region>
+                                    </Region>
                                 </regions>
                             </Media>
-                            <Outputs>
+                            <outputs>
                                 <VideoCueOutput>
                                     <output_name>VideoOut2</output_name>
                                     <output_geometry>
@@ -276,49 +277,50 @@
                                                 <x>1</x>
                                                 <y>0</y>
                                             </top_right>
-                                            <bott_left>
+                                            <bottom_left>
                                                 <x>0</x>
                                                 <y>1</y>
-                                            </bott_left>
-                                            <bott_right>
+                                            </bottom_left>
+                                            <bottom_right>
                                                 <x>1</x>
                                                 <y>1</y>
-                                            </bott_right>
+                                            </bottom_right>
                                         </corners>
                                     </output_geometry>
                                 </VideoCueOutput>
-                            </Outputs>
+                            </outputs>
                         </VideoCue>
                         <AudioCue>
-                            <uuid>12345678-aaaa-aaaa-aaaa-123456789004</uuid>
-                            <id>10</id>
-                            <name>Audio cue id 10</name>
+                            <autoload>False</autoload>
                             <description>Audio cue desc id 10</description>
                             <enabled>True</enabled>
-                            <loaded>False</loaded>
-                            <timecode>False</timecode>
+                            <id>12345678-aaaa-4aaa-aaaa-123456789004</id>
+                            <loop>1</loop>
+                            <name>Audio cue id 10</name>
                             <offset>
                                 <CTimecode>00:00:00.000</CTimecode>
                             </offset>
-                            <loop>1</loop>
-                            <prewait>
-                                <CTimecode>00:00:00.000</CTimecode>
-                            </prewait>
+                            <post_go>pause</post_go>
                             <postwait>
                                 <CTimecode>00:00:00.000</CTimecode>
                             </postwait>
-                            <post_go>pause</post_go>
+                            <prewait>
+                                <CTimecode>00:00:00.000</CTimecode>
+                            </prewait>
                             <target></target>
-                            <UI_properties>
+                            <timecode>False</timecode>
+                            <ui_properties>
                                 <timeline_position>
                                     <x>0</x>
                                     <y>0</y>
                                 </timeline_position>
-                            </UI_properties>
+                            </ui_properties>
                             <Media>
                                 <file_name>strokes.wav</file_name>
+                                <id>52afd4cb-a42b-48c8-9bb3-18f273d741fc</id>
+                                <duration>00:00:00.000</duration>
                                 <regions>
-                                    <region>
+                                    <Region>
                                         <id>0</id>
                                         <loop>3</loop>
                                         <in_time>
@@ -327,11 +329,10 @@
                                         <out_time>
                                             <CTimecode>00:01:10.000</CTimecode>
                                         </out_time>
-                                    </region>
+                                    </Region>
                                 </regions>
                             </Media>
-                            <master_vol>100</master_vol>
-                            <Outputs>
+                            <outputs>
                                 <AudioCueOutput>
                                     <output_name>Out1</output_name>
                                     <output_vol>100</output_vol>
@@ -346,40 +347,42 @@
                                         </channel>
                                     </channels>
                                 </AudioCueOutput>
-                            </Outputs>
+                            </outputs>
+                            <master_vol>100</master_vol>
                         </AudioCue>
                     </contents>
                 </CueList>
                 <VideoCue>
-                    <uuid>12345678-aaaa-aaaa-aaaa-123456789005</uuid>
-                    <id>V3</id>
-                    <name>Video cue id V3</name>
+                    <autoload>False</autoload>
                     <description>Video cue desc id V3</description>
                     <enabled>True</enabled>
-                    <loaded>False</loaded>
-                    <timecode>False</timecode>
+                    <id>12345678-aaaa-4aaa-aaaa-123456789005</id>
+                    <loop>1</loop>
+                    <name>Video cue id V3</name>
                     <offset>
                         <CTimecode>00:00:00.000</CTimecode>
                     </offset>
-                    <loop>1</loop>
-                    <prewait>
-                        <CTimecode>00:00:00.000</CTimecode>
-                    </prewait>
+                    <post_go>pause</post_go>
                     <postwait>
                         <CTimecode>00:00:00.000</CTimecode>
                     </postwait>
-                    <post_go>pause</post_go>
+                    <prewait>
+                        <CTimecode>00:00:00.000</CTimecode>
+                    </prewait>
                     <target></target>
-                    <UI_properties>
+                    <timecode>False</timecode>
+                    <ui_properties>
                         <timeline_position>
                             <x>0</x>
                             <y>0</y>
                         </timeline_position>
-                    </UI_properties>
+                    </ui_properties>
                     <Media>
                         <file_name>sync.2.mp4</file_name>
+                        <id>62afd4cb-a42b-48c8-9bb3-18f273d741fc</id>
+                        <duration>00:00:00.000</duration>
                         <regions>
-                            <region>
+                            <Region>
                                 <id>0</id>
                                 <loop>20</loop>
                                 <in_time>
@@ -388,10 +391,10 @@
                                 <out_time>
                                     <CTimecode>00:00:18.500</CTimecode>
                                 </out_time>
-                            </region>
+                            </Region>
                         </regions>
                     </Media>
-                    <Outputs>
+                    <outputs>
                         <VideoCueOutput>
                             <output_name>VideoOut3</output_name>
                             <output_geometry>
@@ -406,49 +409,50 @@
                                         <x>1</x>
                                         <y>0</y>
                                     </top_right>
-                                    <bott_left>
+                                    <bottom_left>
                                         <x>0</x>
                                         <y>1</y>
-                                    </bott_left>
-                                    <bott_right>
+                                    </bottom_left>
+                                    <bottom_right>
                                         <x>1</x>
                                         <y>1</y>
-                                    </bott_right>
+                                    </bottom_right>
                                 </corners>
                             </output_geometry>
                         </VideoCueOutput>
-                    </Outputs>
+                    </outputs>
                 </VideoCue>
                 <VideoCue>
-                    <uuid>12345678-aaaa-aaaa-aaaa-123456789006</uuid>
-                    <id>V4</id>
-                    <name>Video cue id V4</name>
+                    <autoload>False</autoload>
                     <description>Video cue desc id V4</description>
                     <enabled>True</enabled>
-                    <loaded>False</loaded>
-                    <timecode>False</timecode>
+                    <id>12345678-aaaa-4aaa-aaaa-123456789006</id>
+                    <loop>1</loop>
+                    <name>Video cue id V4</name>
                     <offset>
                         <CTimecode>00:00:00.000</CTimecode>
                     </offset>
-                    <loop>1</loop>
-                    <prewait>
-                        <CTimecode>00:00:00.000</CTimecode>
-                    </prewait>
+                    <post_go>pause</post_go>
                     <postwait>
                         <CTimecode>00:00:00.000</CTimecode>
                     </postwait>
-                    <post_go>pause</post_go>
+                    <prewait>
+                        <CTimecode>00:00:00.000</CTimecode>
+                    </prewait>
                     <target></target>
-                    <UI_properties>
+                    <timecode>False</timecode>
+                    <ui_properties>
                         <timeline_position>
                             <x>0</x>
                             <y>0</y>
                         </timeline_position>
-                    </UI_properties>
+                    </ui_properties>
                     <Media>
                         <file_name>daft25.m4v</file_name>
+                        <id>72afd4cb-a42b-48c8-9bb3-18f273d741fc</id>
+                        <duration>00:00:00.000</duration>
                         <regions>
-                            <region>
+                            <Region>
                                 <id>0</id>
                                 <loop>1</loop>
                                 <in_time>
@@ -457,10 +461,10 @@
                                 <out_time>
                                     <CTimecode>00:00:30.000</CTimecode>
                                 </out_time>
-                            </region>
+                            </Region>
                         </regions>
                     </Media>
-                    <Outputs>
+                    <outputs>
                         <VideoCueOutput>
                             <output_name>VideoOut4</output_name>
                             <output_geometry>
@@ -475,20 +479,20 @@
                                         <x>1</x>
                                         <y>0</y>
                                     </top_right>
-                                    <bott_left>
+                                    <bottom_left>
                                         <x>0</x>
                                         <y>1</y>
-                                    </bott_left>
-                                    <bott_right>
+                                    </bottom_left>
+                                    <bottom_right>
                                         <x>1</x>
                                         <y>1</y>
-                                    </bott_right>
+                                    </bottom_right>
                                 </corners>
                             </output_geometry>
                         </VideoCueOutput>
-                    </Outputs>
+                    </outputs>
                 </VideoCue>
             </contents>
         </CueList>
     </CuemsScript>
-</cms:CuemsProject>
\ No newline at end of file
+</cms:CuemsProject>
diff --git a/src/test_xml_files/script_empty.xml b/dev/test_xml_files/projects/empty_test/script.xml
similarity index 54%
rename from src/test_xml_files/script_empty.xml
rename to dev/test_xml_files/projects/empty_test/script.xml
index 0fbd672..126d996 100644
--- a/src/test_xml_files/script_empty.xml
+++ b/dev/test_xml_files/projects/empty_test/script.xml
@@ -1,33 +1,34 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <cms:CuemsProject
-    xmlns:cms="http://stagelab.net/cuems"
+    xmlns:cms="https://stagelab.coop/cuems/"
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://stagelab.net/cuems ../cuems/script.xsd">
+    xsi:schemaLocation="https://stagelab.coop/cuems/ /disk/Projects/StageLab/cuems-utils/src/cuemsutils/xml/schemas/script.xsd">
     <CuemsScript>
-        <uuid>12345678-aaaa-aaaa-aaaa-123456789012</uuid>
+        <id>12345678-aaaa-4aaa-aaaa-123456789012</id>
         <name>Test Main Script</name>
         <description>This is the description text of the project</description>
         <created>2020-01-01T00:00:00.000</created>
         <modified>2020-01-01T00:00:00.000</modified>
-        <cuelist>
-            <uuid>12345678-aaaa-aaaa-aaaa-123456789012</uuid>
-            <name>Test script name</name>
+        <ui_properties></ui_properties>
+        <CueList>
+            <autoload>False</autoload>
             <description>Cuelist description</description>
-            <disabled>false</disabled>
-            <loaded>false</loaded>
-            <timecode>true</timecode>
+            <enabled>False</enabled>
+            <id>12345678-aaaa-4aaa-aaaa-123456789012</id>
+            <loop>0</loop>
+            <name>Test script name</name>
             <offset>
-                <CTimecode>00:00:00:00</CTimecode>
+                <CTimecode>00:00:00.000</CTimecode>
             </offset>
-            <loop>0</loop>
-            <prewait>
-                <CTimecode>00:00:00:00</CTimecode>
-            </prewait>
+            <post_go>pause</post_go>
             <postwait>
-                <CTimecode>00:00:00:00</CTimecode>
+                <CTimecode>00:00:00.000</CTimecode>
             </postwait>
-            <post_action>pause</post_action>
-            <target>00000000-0000-0000-0000-000000000000</target>
+            <prewait>
+                <CTimecode>00:00:00.000</CTimecode>
+            </prewait>
+            <target>00000000-0000-4000-8000-000000000000</target>
+            <timecode>True</timecode>
             <ui_properties>
                 <timeline_position>
                     <x>0</x>
@@ -37,6 +38,6 @@
             <contents>
                 <!-- Empty CueList -->
             </contents>
-        </cuelist>
+        </CueList>
     </CuemsScript>
-</cms:CuemsProject>
\ No newline at end of file
+</cms:CuemsProject>
diff --git a/src/test_xml_files/sample_audiocue.xml b/dev/test_xml_files/sample_audiocue.xml
similarity index 100%
rename from src/test_xml_files/sample_audiocue.xml
rename to dev/test_xml_files/sample_audiocue.xml
diff --git a/src/test_xml_files/sample_cue.xml b/dev/test_xml_files/sample_cue.xml
similarity index 100%
rename from src/test_xml_files/sample_cue.xml
rename to dev/test_xml_files/sample_cue.xml
diff --git a/src/test_xml_files/sample_cuelist.xml b/dev/test_xml_files/sample_cuelist.xml
similarity index 100%
rename from src/test_xml_files/sample_cuelist.xml
rename to dev/test_xml_files/sample_cuelist.xml
diff --git a/src/test_xml_files/sample_dmxcue.xml b/dev/test_xml_files/sample_dmxcue.xml
similarity index 100%
rename from src/test_xml_files/sample_dmxcue.xml
rename to dev/test_xml_files/sample_dmxcue.xml
diff --git a/src/test_xml_files/sample_videocue.xml b/dev/test_xml_files/sample_videocue.xml
similarity index 100%
rename from src/test_xml_files/sample_videocue.xml
rename to dev/test_xml_files/sample_videocue.xml
diff --git a/src/test_xml_files/script_one_cue_in_a_cuelist.xml b/dev/test_xml_files/script_one_cue_in_a_cuelist.xml
similarity index 89%
rename from src/test_xml_files/script_one_cue_in_a_cuelist.xml
rename to dev/test_xml_files/script_one_cue_in_a_cuelist.xml
index e5c3630..eefba06 100644
--- a/src/test_xml_files/script_one_cue_in_a_cuelist.xml
+++ b/dev/test_xml_files/script_one_cue_in_a_cuelist.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<cms:CuemsProject xmlns:cms="http://stagelab.net/cuems" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://stagelab.net/cuems ../cuems/script.xsd">
+<cms:CuemsProject xmlns:cms="https://stagelab.coop/cuems" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="https://stagelab.coop/cuems ../cuems/script.xsd">
     <CuemsScript>
         <uuid>12345678-MAIN-SCRI-ssss-000000000001</uuid>
         <name>Test Main Script</name>
@@ -37,4 +37,4 @@
             </contents>
         </cuelist>
     </CuemsScript>
-</cms:CuemsProject>
\ No newline at end of file
+</cms:CuemsProject>
diff --git a/src/test_xml_files/script_one_simple_cue.xml b/dev/test_xml_files/script_one_simple_cue.xml
similarity index 93%
rename from src/test_xml_files/script_one_simple_cue.xml
rename to dev/test_xml_files/script_one_simple_cue.xml
index d9fd964..5e2a7a3 100644
--- a/src/test_xml_files/script_one_simple_cue.xml
+++ b/dev/test_xml_files/script_one_simple_cue.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<cms:CuemsProject xmlns:cms="http://stagelab.net/cuems" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://stagelab.net/cuems ../cuems/script.xsd">
+<cms:CuemsProject xmlns:cms="https://stagelab.coop/cuems" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="https://stagelab.coop/cuems ../cuems/script.xsd">
     <CuemsScript>
         <uuid>12345678-aaaa-aaaa-aaaa-123456789012</uuid>
         <name>Test Main Script</name>
@@ -73,4 +73,4 @@
             </contents>
         </cuelist>
     </CuemsScript>
-</cms:CuemsProject>
\ No newline at end of file
+</cms:CuemsProject>
diff --git a/dev/test_xml_files/settings.xml b/dev/test_xml_files/settings.xml
new file mode 100644
index 0000000..353b600
--- /dev/null
+++ b/dev/test_xml_files/settings.xml
@@ -0,0 +1,71 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<cms:CuemsSettings xmlns:cms="https://stagelab.coop/cuems/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="https://stagelab.coop/cuems/ ../cuems/settings.xsd">
+    <Settings>
+        <conf_path>/etc/cuems</conf_path>
+        <library_path>/opt/cuems_library</library_path>
+        <tmp_path>/tmp/cuems</tmp_path>
+        <database_name>project-manager.db</database_name>
+        <show_lock_file>show.lock</show_lock_file>
+        <editor_url>formitgo.local</editor_url>
+        <controller_url>controller.local</controller_url>
+        <templates_path>/usr/share/cuems</templates_path>
+        <controller_interfaces_template>interfaces.controller</controller_interfaces_template>
+        <node_interfaces_template>interfaces.node</node_interfaces_template>
+        <controller_lock_file>controller.lock</controller_lock_file>
+        <node>
+            <uuid>0367f391-ebf4-48b2-9f26-000000000001</uuid>
+            <mac>2cf05d21cca3</mac>
+            <osc_dest_host>localhost</osc_dest_host>
+            <oscquery_ws_port>9190</oscquery_ws_port>
+            <oscquery_osc_port>9191</oscquery_osc_port>
+            <websocket_port>9092</websocket_port>
+            <load_timeout>15000</load_timeout>
+            <nodeconf_timeout>5000</nodeconf_timeout>
+            <discovery_timeout>15000</discovery_timeout>
+            <mtc_port>Midi Through Port-0</mtc_port>
+            <osc_in_port_base>7000</osc_in_port_base>
+            <nng_hub_port>5555</nng_hub_port>
+            <videoplayer>
+                <path>/usr/bin/videocomposer</path>
+                <args></args>
+                <outputs>2</outputs>
+                <!-- output_latency_ms: "auto" = use videocomposer's
+                     hard-coded 33 ms default; integer 0-500 = explicit
+                     override. NOTE: videocomposer runs as a systemd
+                     service (not spawned by the engine), so this value
+                     is NOT forwarded via CLI today. Set via a systemd
+                     drop-in override on each node (see
+                     cuems-common cuems-videocomposer.service for the
+                     snippet). This element is kept for schema-
+                     completeness and forward-compatibility. -->
+                <output_latency_ms>auto</output_latency_ms>
+            </videoplayer>
+            <audioplayer>
+                <path>/usr/bin/cuems-audioplayer</path>
+                <args>-w -1</args>
+                <audio_cards>1</audio_cards>
+                <!-- output_latency_ms: "auto" = use JACK-queried value
+                     (recommended on most rigs; JACK knows its own
+                     latency best); integer 0-500 = explicit override. -->
+                <output_latency_ms>auto</output_latency_ms>
+            </audioplayer>
+            <dmxplayer>
+                <path>/usr/bin/cuems-dmxplayer</path>
+                <args></args>
+                <universes>1</universes>
+                <!-- output_latency_ms: integer 0-500. DMX has no auto
+                     measurement path (schema rejects "auto"). Absent
+                     element = 35 ms hard-coded default (midpoint of
+                     ENTTEC and ArtNet typicals).
+                     Recommended per-adapter starting points:
+                       ENTTEC USB Pro / DMXKing  ~30 ms
+                       OpenDMX (FTDI bit-banged) ~35 ms
+                       ArtNet (dedicated 1GbE)   ~44 ms
+                       ArtNet (shared/wireless)  ~60-80 ms
+                     Measure with a phone camera at 120 fps pointed at
+                     a fixture + click-track audio, tune per node. -->
+                <output_latency_ms>35</output_latency_ms>
+            </dmxplayer>
+        </node>
+    </Settings>
+</cms:CuemsSettings>
diff --git a/src/test_xml_files/test_jsons.txt b/dev/test_xml_files/test_jsons.txt
similarity index 100%
rename from src/test_xml_files/test_jsons.txt
rename to dev/test_xml_files/test_jsons.txt
diff --git a/dev/ws-server.py b/dev/ws-server.py
new file mode 100644
index 0000000..19dfe2c
--- /dev/null
+++ b/dev/ws-server.py
@@ -0,0 +1,31 @@
+import time
+import uuid
+import os
+
+from cuemsutils.log import Logger
+from cuemsengine.tools.communicate import EditorWsServer
+
+settings_dict = {}
+settings_dict['session_uuid'] = str(uuid.uuid1())
+settings_dict['library_path'] = '/opt/cuems_library'
+settings_dict['tmp_path'] = '/tmp/cuems'
+settings_dict['database_name'] = 'project-manager.db'
+
+
+mappings_dict = {'number_of_nodes': 1, 'default_audio_input': '0367f391-ebf4-48b2-9f26-000000000001_system:capture_1', 'default_audio_output': '0367f391-ebf4-48b2-9f26-000000000001_system:playback_1', 'default_video_input': None, 'default_video_output': '0367f391-ebf4-48b2-9f26-000000000001_0', 'default_dmx_input': None, 'default_dmx_output': None, 'nodes': [{'uuid': '0367f391-ebf4-48b2-9f26-000000000001', 'mac': '2cf05d21cca3', 'audio': {'outputs': [{'name': 'system:playback_1', 'mappings': [{'mapped_to': 'system:playback_1'}]}, {'name': 'system:playback_2', 'mappings': [{'mapped_to': 'system:playback_2'}]}], 'inputs': [{'name': 'system:capture_1', 'mappings': [{'mapped_to': 'system:capture_1'}]}, {'name': 'system:capture_2', 'mappings': [{'mapped_to': 'system:capture_2'}]}]}, 'video': {'outputs': [{'name': '0', 'mappings': [{'mapped_to': '0'}]}]}, 'dmx': None}]}
+
+try:
+    if not os.path.exists(settings_dict['tmp_path']):
+        os.mkdir(settings_dict['tmp_path'])
+        Logger.info('creating tmp upload folder {}'.format(settings_dict['tmp_path']))
+except Exception as e:
+    print("error: {} {}".format(type(e), e))
+
+
+server = EditorWsServer(settings_dict, mappings_dict)
+Logger.info('start server')
+time.sleep(5)
+server.start(9092)
+
+
+#server.stop()
diff --git a/diagnose_env.py b/diagnose_env.py
new file mode 100755
index 0000000..4cfec46
--- /dev/null
+++ b/diagnose_env.py
@@ -0,0 +1,65 @@
+#!/usr/bin/env python3
+import os
+import sys
+import site
+import platform
+import subprocess
+from pathlib import Path
+
+def get_poetry_info():
+    try:
+        result = subprocess.run(['poetry', '--version'], capture_output=True, text=True)
+        return result.stdout.strip()
+    except:
+        return "Poetry not found"
+
+def get_python_info():
+    return {
+        'version': sys.version,
+        'implementation': platform.python_implementation(),
+        'platform': platform.platform(),
+        'executable': sys.executable
+    }
+
+def get_path_info():
+    return {
+        'PYTHONPATH': os.environ.get('PYTHONPATH', 'Not set'),
+        'sys.path': sys.path,
+        'site_packages': site.getsitepackages(),
+        'current_dir': str(Path.cwd()),
+        'src_dir_exists': Path('src').exists(),
+        'src_cuemsengine_exists': Path('src/cuemsengine').exists()
+    }
+
+def get_poetry_env_info():
+    try:
+        result = subprocess.run(['poetry', 'env', 'info'], capture_output=True, text=True)
+        return result.stdout
+    except:
+        return "Failed to get Poetry environment"
+
+def main():
+    print("=== Environment Diagnostic Information ===")
+    print("\n=== Poetry Version ===")
+    print(get_poetry_info())
+    
+    print("\n=== Python Information ===")
+    python_info = get_python_info()
+    for key, value in python_info.items():
+        print(f"{key}: {value}")
+    
+    print("\n=== Path Information ===")
+    path_info = get_path_info()
+    for key, value in path_info.items():
+        if isinstance(value, list):
+            print(f"\n{key}:")
+            for item in value:
+                print(f"  - {item}")
+        else:
+            print(f"{key}: {value}")
+    
+    print("\n=== Poetry Environment Information ===")
+    print(get_poetry_env_info())
+
+if __name__ == '__main__':
+    main() 
diff --git a/dist/osc-control-stagelab-0.0.0.tar.gz b/dist/osc-control-stagelab-0.0.0.tar.gz
deleted file mode 100644
index 49dbb9c..0000000
Binary files a/dist/osc-control-stagelab-0.0.0.tar.gz and /dev/null differ
diff --git a/dist/osc_control_stagelab-0.0.0-py3-none-any.whl b/dist/osc_control_stagelab-0.0.0-py3-none-any.whl
deleted file mode 100644
index ec93f67..0000000
Binary files a/dist/osc_control_stagelab-0.0.0-py3-none-any.whl and /dev/null differ
diff --git a/docs/api.md b/docs/api.md
new file mode 100644
index 0000000..ceed21b
--- /dev/null
+++ b/docs/api.md
@@ -0,0 +1,6 @@
+# API Documentation
+
+This API is still in development and may change without notice.
+
+::: cuemsengine.ControllerEngine
+::: cuemsengine.NodeEngine
diff --git a/docs/comms.md b/docs/comms.md
new file mode 100644
index 0000000..6030dc4
--- /dev/null
+++ b/docs/comms.md
@@ -0,0 +1,5 @@
+
+::: cuemsengine.comms.AsyncCommsThread
+::: cuemsengine.comms.ControllerCommunications
+::: cuemsengine.comms.NodeCommunications
+::: cuemsengine.comms.NodesHub
diff --git a/docs/core.md b/docs/core.md
new file mode 100644
index 0000000..5779fe2
--- /dev/null
+++ b/docs/core.md
@@ -0,0 +1,3 @@
+
+::: cuemsengine.core.BaseEngine
+::: cuemsengine.core.EngineStatus
diff --git a/docs/cues.md b/docs/cues.md
new file mode 100644
index 0000000..cc66cb5
--- /dev/null
+++ b/docs/cues.md
@@ -0,0 +1,16 @@
+# Cue Architecture
+
+## ActionHandler (action_handler.py)
+
+Owns all `ActionCue` processing — validation, dispatch, hooks, and result delivery.
+
+- **Hook phases**: `before_dispatch`, `after_dispatch`, `wrap_dispatch`
+- **Registration layers**: `cue_layer` (from CueHandler), `node_layer` (from NodeEngine)
+- **Result sink**: injectable callable; defaults to NNG `NodeOperation.STATUS` via `NodeCommunications.send_operation`
+
+See [action-handler-extensibility contract](../specs/003-action-handler-extract/contracts/action-handler-extensibility.md) for integration details.
+
+::: cuemsengine.cues.action_handler
+::: cuemsengine.cues.CueHandler
+::: cuemsengine.cues.arm_cue
+::: cuemsengine.cues.run_cue
diff --git a/docs/index.md b/docs/index.md
new file mode 100644
index 0000000..530b115
--- /dev/null
+++ b/docs/index.md
@@ -0,0 +1,15 @@
+# cuems-engine
+Central engine for the CueMS system, that handles the core logic of the project.
+
+[![PyPI - Version](https://img.shields.io/pypi/v/cuemsengine.svg)](https://pypi.org/project/cuemsengine)
+[![PyPI - Python Version](https://img.shields.io/pypi/pyversions/cuemsengine.svg)](https://pypi.org/project/cuemsengine)
+
+
+## Installation
+
+```console
+pip install cuemsengine
+```
+
+## Release notes
+Please refer to the repository for [release notes](https://github.com/stagesoft/cuems-engine?tab=readme-ov-file#release-notes).
diff --git a/docs/osc.md b/docs/osc.md
new file mode 100644
index 0000000..dfb581a
--- /dev/null
+++ b/docs/osc.md
@@ -0,0 +1,8 @@
+
+
+::: cuemsengine.osc.OssiaNodes
+::: cuemsengine.osc.OssiaClient
+::: cuemsengine.osc.OssiaServer
+::: cuemsengine.osc.PyOsc
+::: cuemsengine.osc.helpers
+::: cuemsengine.osc.endpoints
diff --git a/docs/players.md b/docs/players.md
new file mode 100644
index 0000000..0a802b1
--- /dev/null
+++ b/docs/players.md
@@ -0,0 +1,5 @@
+
+::: cuemsengine.players.Player
+::: cuemsengine.players.AudioPlayer
+::: cuemsengine.players.DmxPlayer
+::: cuemsengine.players.VideoPlayer
diff --git a/docs/timecode-websocket-cpu-evaluation.md b/docs/timecode-websocket-cpu-evaluation.md
new file mode 100644
index 0000000..76e45ed
--- /dev/null
+++ b/docs/timecode-websocket-cpu-evaluation.md
@@ -0,0 +1,43 @@
+# Timecode-over-WebSocket CPU Evaluation
+
+## Data flow
+
+1. **MTC listener thread** (mido callback): receives MIDI quarter-frame messages.
+   - At 24 fps: 8 quarter-frames per frame → `__update_timecode()` runs when frame_type ∈ {3, 7}, plus full decode at 7 → **~24 invocations/sec** (one per video frame).
+   - At 25/30 fps: **~25–30 invocations/sec**.
+
+2. **`mtc_callback`** (BaseEngine, same thread): runs ~24–30/sec. Does:
+   - `go_offset is not None` check
+   - `self.timecode = mtc.milliseconds - self.go_offset` → triggers property setter.
+
+3. **`on_timecode_change`** (ControllerEngine, same thread): runs ~24–30/sec. Does:
+   - `time.monotonic()` (cheap)
+   - Throttle: `(now - _last_timecode_broadcast) >= 0.05` → **only ~20 times/sec** proceed.
+   - When passing: `int(value)`, `_broadcast_status('timecode', tc_int)`.
+
+4. **`broadcast_osc`** (ControllerCommunications, called from MTC thread): ~20/sec. Does:
+   - `build_osc_message('/engine/status/timecode', tc_int)` → new OSC message (~50–80 bytes).
+   - `asyncio.run_coroutine_threadsafe(_send_all(), event_loop)` → schedules work on comms thread.
+
+5. **Event loop** (comms thread): ~20/sec runs `_send_all()`:
+   - `list(self._ws_clients)` (copy of set)
+   - For each client: `await ws.send(data)` (one small TCP send per client).
+
+## CPU impact (summary)
+
+| Component              | Rate        | Cost per call              | Estimated CPU |
+|------------------------|------------|----------------------------|---------------|
+| mtc_callback           | ~24–30/s   | 1 check + 1 property set    | Negligible    |
+| on_timecode_change     | ~24–30/s   | monotonic + throttle check | Negligible    |
+| Throttle pass          | 20/s       | int + broadcast            | Negligible    |
+| build_osc_message      | 20/s       | Small allocation + encode  | Very low      |
+| run_coroutine_threadsafe | 20/s     | Schedule onto loop         | Very low      |
+| _send_all (1–5 clients)| 20/s       | 20–100 small socket sends  | Very low      |
+
+**Conclusion:** CPU use for timecode-over-WebSocket is **low**. Typical case (1–3 UI clients, 20 broadcasts/sec, ~50–80 bytes each) is well under 1% CPU. The throttle (20 Hz) is the main limiter; without it, ~24–30 builds and sends/sec would still be light.
+
+## Possible optimizations (if ever needed)
+
+- **Logging:** Avoid `Logger.debug` on every MTC tick; log only when actually broadcasting (or at lower rate) to reduce cost when debug is enabled.
+- **Throttle:** 10 Hz (0.1 s) is enough for a timecode display; would halve broadcast and build rate.
+- **Message reuse:** Reuse a single OSC message buffer and only change the int argument (micro-optimization; current allocation rate is already small).
diff --git a/docs/tools.md b/docs/tools.md
new file mode 100644
index 0000000..1b38ec1
--- /dev/null
+++ b/docs/tools.md
@@ -0,0 +1,5 @@
+
+::: cuemsengine.tools.CuemsDeploy
+::: cuemsengine.tools.MtcListener
+::: cuemsengine.tools.PortHandler
+::: cuemsengine.tools.system_ports
diff --git a/mkdocs.yml b/mkdocs.yml
new file mode 100644
index 0000000..1be5800
--- /dev/null
+++ b/mkdocs.yml
@@ -0,0 +1,12 @@
+site_name: CUEMS Engine - FormitGo
+repo_url: https://github.com/cuems/cuems-engine
+theme:
+  name: material
+
+plugins:
+- search
+- mkdocstrings:
+    default_handler: python
+    handlers:
+      python:
+        paths: [src]
diff --git a/osc_control_stagelab.egg-info/PKG-INFO b/osc_control_stagelab.egg-info/PKG-INFO
deleted file mode 100644
index a3da467..0000000
--- a/osc_control_stagelab.egg-info/PKG-INFO
+++ /dev/null
@@ -1,17 +0,0 @@
-Metadata-Version: 1.2
-Name: osc-control-stagelab
-Version: 0.0.0
-Summary: A small example package
-Home-page: https://github.com/stagesoft/osc_control
-Author: Ion Reguera
-Author-email: ion@stagelab.net
-License: UNKNOWN
-Description: add path to settings.xml
-        ----
-        run ossia_server.py
-        
-Platform: UNKNOWN
-Classifier: Programming Language :: Python :: 3
-Classifier: License :: OSI Approved :: MIT License
-Classifier: Operating System :: OS Independent
-Requires-Python: >=3.7
diff --git a/osc_control_stagelab.egg-info/SOURCES.txt b/osc_control_stagelab.egg-info/SOURCES.txt
deleted file mode 100644
index 26cc46e..0000000
--- a/osc_control_stagelab.egg-info/SOURCES.txt
+++ /dev/null
@@ -1,7 +0,0 @@
-README.md
-setup.py
-osc_control_stagelab.egg-info/PKG-INFO
-osc_control_stagelab.egg-info/SOURCES.txt
-osc_control_stagelab.egg-info/dependency_links.txt
-osc_control_stagelab.egg-info/entry_points.txt
-osc_control_stagelab.egg-info/top_level.txt
\ No newline at end of file
diff --git a/osc_control_stagelab.egg-info/dependency_links.txt b/osc_control_stagelab.egg-info/dependency_links.txt
deleted file mode 100644
index 8b13789..0000000
--- a/osc_control_stagelab.egg-info/dependency_links.txt
+++ /dev/null
@@ -1 +0,0 @@
-
diff --git a/osc_control_stagelab.egg-info/entry_points.txt b/osc_control_stagelab.egg-info/entry_points.txt
deleted file mode 100644
index fc6baf4..0000000
--- a/osc_control_stagelab.egg-info/entry_points.txt
+++ /dev/null
@@ -1,3 +0,0 @@
-[console_scripts]
-ossia_server = ossia_server:main
-
diff --git a/osc_control_stagelab.egg-info/top_level.txt b/osc_control_stagelab.egg-info/top_level.txt
deleted file mode 100644
index 8b13789..0000000
--- a/osc_control_stagelab.egg-info/top_level.txt
+++ /dev/null
@@ -1 +0,0 @@
-
diff --git a/poetry.lock b/poetry.lock
new file mode 100644
index 0000000..7535b5d
--- /dev/null
+++ b/poetry.lock
@@ -0,0 +1,1268 @@
+# This file is automatically @generated by Poetry 2.2.1 and should not be changed by hand.
+
+[[package]]
+name = "aiofiles"
+version = "24.1.0"
+description = "File support for asyncio."
+optional = false
+python-versions = ">=3.8"
+groups = ["main"]
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+]
+
+[[package]]
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+description = "The uncompromising code formatter."
+optional = false
+python-versions = ">=3.9"
+groups = ["dev"]
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+
+[[package]]
+name = "xmlschema"
+version = "3.4.3"
+description = "An XML Schema validator and decoder"
+optional = false
+python-versions = ">=3.8"
+groups = ["main"]
+files = [
+    {file = "xmlschema-3.4.3-py3-none-any.whl", hash = "sha256:eea4e5a1aac041b546ebe7b2eb68eb5eaebf5c5258e573cfc182375676b2e4e3"},
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+]
+
+[package.dependencies]
+elementpath = ">=4.4.0,<5.0.0"
+
+[package.extras]
+codegen = ["elementpath (>=4.4.0,<5.0.0)", "jinja2"]
+dev = ["Sphinx", "coverage", "elementpath (>=4.4.0,<5.0.0)", "flake8", "jinja2", "lxml", "lxml-stubs", "memory-profiler", "mypy", "sphinx-rtd-theme", "tox"]
+docs = ["Sphinx", "elementpath (>=4.4.0,<5.0.0)", "jinja2", "sphinx-rtd-theme"]
+
+[metadata]
+lock-version = "2.1"
+python-versions = "^3.11"
+content-hash = "43a6c7593829d6db44ab087d7606e71f99c43d66b94750201a7f668d49333c8d"
diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 0000000..317dc65
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,140 @@
+[build-system]
+requires = ["poetry-core"]
+build-backend = "poetry.core.masonry.api"
+
+[tool.poetry]
+name = "cuemsengine"
+version = "0.1.0rc2"
+description = "Engine infraestructure of the CueMS system"
+readme = "README.md"
+license = "GPL-3.0"
+authors = [
+    "Ion Reguera <ion@stagelab.coop>",
+    "Adrià Masip <adria.back@gmail.com>"
+]
+keywords = []
+classifiers = [
+    "Development Status :: 4 - Beta",
+    "Intended Audience :: Developers",
+    "License :: OSI Approved :: GNU General Public License v3 (GPLv3)",
+    "Programming Language :: Python :: 3",
+    "Programming Language :: Python :: 3.11",
+    "Topic :: Artistic Software",
+    "Topic :: Multimedia :: Sound/Audio",
+    "Topic :: Multimedia :: Sound/Audio :: Players",
+    "Topic :: Multimedia :: Video",
+    "Topic :: Multimedia :: Video :: Display"
+]
+repository = "https://github.com/stagesoft/cuems-engine"
+documentation = "https://github.com/stagesoft/cuems-engine#readme"
+homepage = "https://github.com/stagesoft/cuems-engine"
+
+[tool.poetry.dependencies]
+python = "^3.11"
+cuemsutils = "0.1.0rc4"
+mido = "1.3.3"
+packaging = "*"
+python-rtmidi = "*"
+python-osc = "1.9.3"
+JACK-Client = ">=0.5.4"
+# systemd-python is provided by python3-systemd Debian package (see debian/control)
+# pyossia is provided by python3-pyossia Debian package (see debian/control)
+
+[tool.poetry.group.dev.dependencies]
+psutil = "*"
+pytest = ">=7.0"
+pytest-cov = ">=4.0"
+pytest-xdist = ">=3.0"
+pytest-mock = "*"
+coverage = {extras = ["toml"], version = "*"}
+black = "*"
+isort = "*"
+flake8 = "*"
+
+[tool.poetry.scripts]
+node-engine = "cuemsengine.scripts.node_engine:main"
+controller-engine = "cuemsengine.scripts.controller_engine:main"
+mock-audioplayer = "cuemsengine.scripts.mock_audioplayer:main"
+mock-jack-volume = "cuemsengine.scripts.mock_jack_volume:main"
+mock-dmxplayer = "cuemsengine.scripts.mock_dmxplayer:main"
+mock-videocomposer = "cuemsengine.scripts.mock_videocomposer:main"
+
+[[tool.poetry.packages]]
+include = "cuemsengine"
+from = "src"
+
+[tool.pytest.ini_options]
+minversion = "7.0"
+addopts = [
+    "-v",
+    "-ra",
+    "--strict-markers",
+    "--strict-config",
+]
+pythonpath = ["src"]
+testpaths = ["tests"]
+python_files = ["test_*.py", "*_test.py"]
+python_classes = ["Test*"]
+python_functions = ["test_*"]
+markers = [
+    "slow: marks tests as slow (deselect with '-m \"not slow\"')",
+    "integration: marks tests as integration tests",
+    "unit: marks tests as unit tests",
+    "cuems: marks tests as using CUEMS engines (automatic cleanup)",
+]
+# Ensure proper cleanup on keyboard interrupt
+junit_duration_report = "call"
+filterwarnings = ["ignore::pytest.PytestUnhandledThreadExceptionWarning"]
+
+[tool.coverage.run]
+source = ["src"]
+branch = true
+omit = [
+    "*/tests/*",
+    "*/test_*",
+    "*/__pycache__/*",
+    "*/venv/*",
+    "*/.venv/*",
+]
+
+[tool.coverage.report]
+show_missing = true
+exclude_lines = [
+    "pragma: no cover",
+    "def __repr__",
+    "if self.debug:",
+    "if settings.DEBUG",
+    "raise AssertionError",
+    "raise NotImplementedError",
+    "if 0:",
+    "if __name__ == .__main__.:",
+    "class .*\\bProtocol\\):",
+    "@(abc\\.)?abstractmethod",
+]
+
+[tool.black]
+line-length = 88
+target-version = ["py310"]
+include = '\.pyi?$'
+extend-exclude = '''
+/(
+  # directories
+  \.eggs
+  | \.git
+  | \.hg
+  | \.mypy_cache
+  | \.tox
+  | \.venv
+  | build
+  | dist
+)/
+'''
+
+[tool.isort]
+profile = "black"
+multi_line_output = 3
+include_trailing_comma = true
+force_grid_wrap = 0
+use_parentheses = true
+ensure_newline_before_comments = true
+line_length = 88
diff --git a/requirements.txt b/requirements.txt
deleted file mode 100644
index 85e1d8e..0000000
--- a/requirements.txt
+++ /dev/null
@@ -1,16 +0,0 @@
-aiofiles==0.6.0
-cffi==1.14.4
-elementpath==1.4.6
-ifaddr==0.1.7
-JACK-Client==0.5.3
-mido==1.2.9
-netifaces==0.10.9
-peewee==3.14.0
-pycparser==2.20
-pyossia @ file:///home/ion/src/cuems/libossia-1.2.2/build/src/ossia-python/dist/pyossia-1.2.2-cp37-cp37m-linux_x86_64.whl
-python-rtmidi==1.4.6
-timecode==1.3.0
-websockets==8.1
-xmlschema==1.2.2
-zeroconf==0.28.8
-xlib==0.21
diff --git a/src/cuems/__init__.py b/scripts/__init__.py
similarity index 100%
rename from src/cuems/__init__.py
rename to scripts/__init__.py
diff --git a/scripts/controller_engine.py b/scripts/controller_engine.py
new file mode 100644
index 0000000..4125c7d
--- /dev/null
+++ b/scripts/controller_engine.py
@@ -0,0 +1,51 @@
+#!/usr/bin/env python3
+"""
+CLI entry point for cuems-engine ControllerEngine.
+
+Runs in foreground mode, designed for systemd services (Type=simple).
+Systemd handles process supervision, logging (journald), and restart.
+
+Example systemd service:
+    [Service]
+    Type=simple
+    ExecStart=/usr/lib/cuems/bin/controller-engine
+    Restart=always
+"""
+
+import signal
+import argparse
+
+from cuemsutils.log import Logger
+from cuemsengine.ControllerEngine import ControllerEngine
+
+
+def main():
+    """Main entry point - run ControllerEngine in foreground"""
+    parser = argparse.ArgumentParser(
+        description='CUEMS Controller Engine',
+        formatter_class=argparse.RawDescriptionHelpFormatter,
+        epilog="""
+Runs in foreground mode. Designed for systemd services (Type=simple).
+Use Ctrl+C to stop when running manually.
+        """
+    )
+    parser.parse_args()
+    
+    Logger.info("Starting CUEMS Controller Engine")
+    
+    engine = ControllerEngine()
+    engine.start()
+    
+    try:
+        signal.pause()
+    except KeyboardInterrupt:
+        Logger.info("Received interrupt signal, stopping engine...")
+        engine.stop_all()
+    except Exception as e:
+        Logger.error(f"Engine error: {type(e).__name__}: {e}")
+        engine.stop_all()
+        raise
+
+
+if __name__ == '__main__':
+    main()
diff --git a/scripts/kill_cuems.sh b/scripts/kill_cuems.sh
new file mode 100644
index 0000000..865a1ee
--- /dev/null
+++ b/scripts/kill_cuems.sh
@@ -0,0 +1,257 @@
+#!/bin/bash
+# CUEMS Process Killer Script
+# Kills all CUEMS-related processes using escalating force
+
+set -e
+
+# Colors for output
+RED='\033[0;31m'
+GREEN='\033[0;32m'
+YELLOW='\033[1;33m'
+NC='\033[0m' # No Color
+
+# Process patterns to look for
+PATTERNS=(
+    "cuems"
+    "pytest.*cuems"
+    "python.*cuems"
+    "cuems-audioplayer"
+    "videoplayer-cuems"
+    "cuems-dmxplayer"
+    "ControllerEngine"
+    "NodeEngine"
+    "OssiaServer"
+    "EditorWsServer"
+)
+
+print_usage() {
+    echo "Usage: $0 [OPTIONS]"
+    echo "Options:"
+    echo "  -f, --force     Skip gentle termination, go straight to kill -9"
+    echo "  -l, --list      List CUEMS processes and exit"
+    echo "  -n, --dry-run   Show what would be killed without killing"
+    echo "  -h, --help      Show this help"
+}
+
+list_cuems_processes() {
+    echo -e "${YELLOW}Looking for CUEMS processes...${NC}"
+    
+    local found=0
+    for pattern in "${PATTERNS[@]}"; do
+        local pids=$(pgrep -f "$pattern" 2>/dev/null || true)
+        if [[ -n "$pids" ]]; then
+            echo -e "${GREEN}Pattern '$pattern':${NC}"
+            for pid in $pids; do
+                if ps -p $pid > /dev/null 2>&1; then
+                    local info=$(ps -p $pid -o pid,ppid,pgid,stat,comm,args --no-headers)
+                    echo "  PID $info"
+                    found=1
+                fi
+            done
+        fi
+    done
+    
+    if [[ $found -eq 0 ]]; then
+        echo -e "${GREEN}No CUEMS processes found${NC}"
+    fi
+    
+    return $found
+}
+
+kill_process_gentle() {
+    local pid=$1
+    local name=$2
+    
+    echo -e "${YELLOW}Gently terminating PID $pid ($name)...${NC}"
+    
+    if kill -TERM "$pid" 2>/dev/null; then
+        # Wait up to 5 seconds for process to die
+        for i in {1..5}; do
+            if ! ps -p "$pid" > /dev/null 2>&1; then
+                echo -e "${GREEN}✓ Process $pid terminated gracefully${NC}"
+                return 0
+            fi
+            sleep 1
+        done
+        echo -e "${YELLOW}⚠ Process $pid didn't terminate within 5s${NC}"
+        return 1
+    else
+        echo -e "${RED}✗ Failed to send TERM signal to $pid${NC}"
+        return 1
+    fi
+}
+
+kill_process_force() {
+    local pid=$1
+    local name=$2
+    
+    echo -e "${RED}Force killing PID $pid ($name)...${NC}"
+    
+    # Try different kill signals
+    local signals=("INT" "KILL")
+    
+    for sig in "${signals[@]}"; do
+        if kill -$sig "$pid" 2>/dev/null; then
+            sleep 1
+            if ! ps -p "$pid" > /dev/null 2>&1; then
+                echo -e "${GREEN}✓ Process $pid killed with SIG$sig${NC}"
+                return 0
+            fi
+        fi
+    done
+    
+    # Try killing process group
+    echo -e "${YELLOW}Trying to kill process group...${NC}"
+    local pgid=$(ps -p "$pid" -o pgid --no-headers 2>/dev/null | tr -d ' ')
+    if [[ -n "$pgid" ]] && [[ "$pgid" != "1" ]]; then
+        if kill -KILL -"$pgid" 2>/dev/null; then
+            sleep 1
+            if ! ps -p "$pid" > /dev/null 2>&1; then
+                echo -e "${GREEN}✓ Process group killed${NC}"
+                return 0
+            fi
+        fi
+    fi
+    
+    echo -e "${RED}✗ Failed to kill process $pid${NC}"
+    return 1
+}
+
+kill_cuems_processes() {
+    local force_mode=$1
+    local dry_run=$2
+    
+    echo -e "${YELLOW}=== CUEMS Process Killer ===${NC}"
+    
+    # Collect all PIDs
+    local all_pids=()
+    local pid_info=()
+    
+    for pattern in "${PATTERNS[@]}"; do
+        local pids=$(pgrep -f "$pattern" 2>/dev/null || true)
+        for pid in $pids; do
+            if ps -p $pid > /dev/null 2>&1; then
+                local comm=$(ps -p $pid -o comm --no-headers)
+                all_pids+=($pid)
+                pid_info[$pid]="$comm"
+            fi
+        done
+    done
+    
+    # Remove duplicates
+    local unique_pids=($(printf "%s\n" "${all_pids[@]}" | sort -u))
+    
+    if [[ ${#unique_pids[@]} -eq 0 ]]; then
+        echo -e "${GREEN}No CUEMS processes found${NC}"
+        return 0
+    fi
+    
+    echo -e "${YELLOW}Found ${#unique_pids[@]} CUEMS processes:${NC}"
+    for pid in "${unique_pids[@]}"; do
+        local info=$(ps -p $pid -o pid,ppid,stat,comm,args --no-headers 2>/dev/null || echo "$pid ? ? ? ?")
+        echo "  $info"
+    done
+    
+    if [[ "$dry_run" == "true" ]]; then
+        echo -e "${YELLOW}(Dry run - no processes killed)${NC}"
+        return 0
+    fi
+    
+    echo -e "${YELLOW}Killing processes...${NC}"
+    
+    local success_count=0
+    local total_count=${#unique_pids[@]}
+    
+    # Sort PIDs by parent-child relationship (children first)
+    # This is a simple approximation - just sort by PID descending
+    local sorted_pids=($(printf "%s\n" "${unique_pids[@]}" | sort -nr))
+    
+    for pid in "${sorted_pids[@]}"; do
+        if ! ps -p "$pid" > /dev/null 2>&1; then
+            echo -e "${GREEN}✓ Process $pid already gone${NC}"
+            ((success_count++))
+            continue
+        fi
+        
+        local name="${pid_info[$pid]:-unknown}"
+        local killed=false
+        
+        if [[ "$force_mode" != "true" ]]; then
+            if kill_process_gentle "$pid" "$name"; then
+                killed=true
+            fi
+        fi
+        
+        if [[ "$killed" != "true" ]]; then
+            if kill_process_force "$pid" "$name"; then
+                killed=true
+            fi
+        fi
+        
+        if [[ "$killed" == "true" ]]; then
+            ((success_count++))
+        fi
+    done
+    
+    echo -e "${YELLOW}=== Summary ===${NC}"
+    echo -e "${GREEN}Successfully killed: $success_count/$total_count processes${NC}"
+    
+    # Check for remaining processes
+    local remaining=()
+    for pattern in "${PATTERNS[@]}"; do
+        local pids=$(pgrep -f "$pattern" 2>/dev/null || true)
+        remaining+=($pids)
+    done
+    
+    if [[ ${#remaining[@]} -gt 0 ]]; then
+        echo -e "${RED}⚠ ${#remaining[@]} processes still running:${NC}"
+        for pid in "${remaining[@]}"; do
+            local info=$(ps -p $pid -o pid,comm --no-headers 2>/dev/null || echo "$pid ?")
+            echo -e "${RED}  $info${NC}"
+        done
+        return 1
+    else
+        echo -e "${GREEN}✓ All CUEMS processes terminated${NC}"
+        return 0
+    fi
+}
+
+# Parse command line arguments
+FORCE=false
+LIST_ONLY=false
+DRY_RUN=false
+
+while [[ $# -gt 0 ]]; do
+    case $1 in
+        -f|--force)
+            FORCE=true
+            shift
+            ;;
+        -l|--list)
+            LIST_ONLY=true
+            shift
+            ;;
+        -n|--dry-run)
+            DRY_RUN=true
+            shift
+            ;;
+        -h|--help)
+            print_usage
+            exit 0
+            ;;
+        *)
+            echo "Unknown option: $1"
+            print_usage
+            exit 1
+            ;;
+    esac
+done
+
+# Main execution
+if [[ "$LIST_ONLY" == "true" ]]; then
+    list_cuems_processes
+    exit $?
+fi
+
+kill_cuems_processes "$FORCE" "$DRY_RUN"
+exit $? 
diff --git a/scripts/kill_cuems_processes.py b/scripts/kill_cuems_processes.py
new file mode 100644
index 0000000..97147b7
--- /dev/null
+++ b/scripts/kill_cuems_processes.py
@@ -0,0 +1,259 @@
+#!/usr/bin/env python3
+"""
+CUEMS Process Killer Utility
+
+This script helps kill stubborn CUEMS processes that can't be killed with regular methods.
+It uses escalating strategies to terminate processes and their children.
+"""
+
+import os
+import sys
+import signal
+import subprocess
+import psutil
+import time
+from pathlib import Path
+
+class CuemsProcessKiller:
+    """Utility to kill CUEMS-related processes"""
+    
+    CUEMS_PATTERNS = [
+        'cuems',
+        'pytest.*cuems',
+        'python.*cuems',
+        'cuems-audioplayer',
+        'videoplayer-cuems',
+        'cuems-dmxplayer',
+        'python.*ControllerEngine',
+        'python.*NodeEngine',
+        'OssiaServer',
+        'EditorWsServer'
+    ]
+    
+    @classmethod
+    def find_cuems_processes(cls):
+        """Find all CUEMS-related processes"""
+        processes = []
+        
+        for proc in psutil.process_iter(['pid', 'name', 'cmdline', 'status', 'ppid']):
+            try:
+                cmdline = ' '.join(proc.info['cmdline'] or [])
+                name = proc.info['name'] or ''
+                
+                # Check if process matches CUEMS patterns
+                for pattern in cls.CUEMS_PATTERNS:
+                    if pattern.lower() in cmdline.lower() or pattern.lower() in name.lower():
+                        processes.append({
+                            'pid': proc.info['pid'],
+                            'name': name,
+                            'cmdline': cmdline,
+                            'status': proc.info['status'],
+                            'ppid': proc.info['ppid'],
+                            'process': proc
+                        })
+                        break
+                        
+            except (psutil.NoSuchProcess, psutil.AccessDenied):
+                continue
+                
+        return processes
+    
+    @classmethod
+    def get_process_tree(cls, pid):
+        """Get all children of a process"""
+        try:
+            parent = psutil.Process(pid)
+            children = parent.children(recursive=True)
+            return [parent] + children
+        except psutil.NoSuchProcess:
+            return []
+    
+    @classmethod
+    def kill_process_gentle(cls, proc, timeout=5):
+        """Try to kill process gently first"""
+        try:
+            print(f"Trying gentle termination of PID {proc.pid}: {proc.name()}")
+            proc.terminate()
+            
+            # Wait for process to terminate
+            proc.wait(timeout=timeout)
+            print(f"✓ Process {proc.pid} terminated gracefully")
+            return True
+            
+        except psutil.TimeoutExpired:
+            print(f"⚠ Process {proc.pid} didn't terminate within {timeout}s")
+            return False
+        except psutil.NoSuchProcess:
+            print(f"✓ Process {proc.pid} already gone")
+            return True
+        except Exception as e:
+            print(f"✗ Error terminating {proc.pid}: {e}")
+            return False
+    
+    @classmethod
+    def kill_process_force(cls, proc):
+        """Force kill process"""
+        try:
+            print(f"Force killing PID {proc.pid}: {proc.name()}")
+            proc.kill()
+            proc.wait(timeout=3)
+            print(f"✓ Process {proc.pid} force killed")
+            return True
+        except psutil.NoSuchProcess:
+            print(f"✓ Process {proc.pid} already gone")
+            return True
+        except Exception as e:
+            print(f"✗ Error force killing {proc.pid}: {e}")
+            return False
+    
+    @classmethod
+    def kill_with_system_commands(cls, pid):
+        """Use system commands as last resort"""
+        commands = [
+            f"kill {pid}",
+            f"kill -INT {pid}",
+            f"kill -9 {pid}",
+            f"kill -9 -{pid}",  # Kill process group
+        ]
+        
+        for cmd in commands:
+            try:
+                print(f"Trying system command: {cmd}")
+                result = subprocess.run(cmd.split(), capture_output=True, text=True)
+                if result.returncode == 0:
+                    print(f"✓ System command succeeded: {cmd}")
+                    time.sleep(1)  # Give time for kill to take effect
+                    
+                    # Check if process is gone
+                    try:
+                        psutil.Process(pid)
+                        print(f"⚠ Process {pid} still alive after {cmd}")
+                    except psutil.NoSuchProcess:
+                        print(f"✓ Process {pid} confirmed dead")
+                        return True
+                else:
+                    print(f"✗ System command failed: {cmd} - {result.stderr}")
+            except Exception as e:
+                print(f"✗ Error with system command {cmd}: {e}")
+        
+        return False
+    
+    @classmethod
+    def kill_cuems_processes(cls, force=False, dry_run=False):
+        """Kill all CUEMS processes"""
+        processes = cls.find_cuems_processes()
+        
+        if not processes:
+            print("No CUEMS processes found")
+            return True
+        
+        print(f"Found {len(processes)} CUEMS processes:")
+        for proc_info in processes:
+            status = proc_info['status']
+            print(f"  PID {proc_info['pid']:>6} [{status:>12}] {proc_info['name']} - {proc_info['cmdline'][:80]}...")
+        
+        if dry_run:
+            print("\n(Dry run - no processes killed)")
+            return True
+        
+        # Group processes by parent-child relationships
+        process_trees = {}
+        for proc_info in processes:
+            pid = proc_info['pid']
+            tree = cls.get_process_tree(pid)
+            if tree:
+                process_trees[pid] = tree
+        
+        # Kill process trees (children first)
+        success_count = 0
+        total_processes = sum(len(tree) for tree in process_trees.values())
+        
+        print(f"\nKilling {total_processes} processes in {len(process_trees)} trees...")
+        
+        for root_pid, tree in process_trees.items():
+            print(f"\n--- Process Tree rooted at PID {root_pid} ---")
+            
+            # Reverse order to kill children first
+            for proc in reversed(tree):
+                try:
+                    if not proc.is_running():
+                        continue
+                        
+                    success = False
+                    
+                    if not force:
+                        # Try gentle kill first
+                        success = cls.kill_process_gentle(proc, timeout=3)
+                    
+                    if not success:
+                        # Force kill
+                        success = cls.kill_process_force(proc)
+                    
+                    if not success:
+                        # System commands as last resort
+                        success = cls.kill_with_system_commands(proc.pid)
+                    
+                    if success:
+                        success_count += 1
+                    else:
+                        print(f"✗ Failed to kill process {proc.pid}")
+                        
+                except psutil.NoSuchProcess:
+                    print(f"✓ Process {proc.pid} already gone")
+                    success_count += 1
+                except Exception as e:
+                    print(f"✗ Error handling process {proc.pid}: {e}")
+        
+        print(f"\n=== Summary ===")
+        print(f"Successfully killed: {success_count}/{total_processes} processes")
+        
+        # Check for any remaining processes
+        remaining = cls.find_cuems_processes()
+        if remaining:
+            print(f"⚠ {len(remaining)} processes still running:")
+            for proc_info in remaining:
+                print(f"  PID {proc_info['pid']} - {proc_info['name']}")
+            return False
+        else:
+            print("✓ All CUEMS processes terminated")
+            return True
+
+def main():
+    import argparse
+    
+    parser = argparse.ArgumentParser(description="Kill CUEMS-related processes")
+    parser.add_argument("--force", "-f", action="store_true", 
+                       help="Skip gentle termination, go straight to force kill")
+    parser.add_argument("--dry-run", "-n", action="store_true",
+                       help="Show what would be killed without actually killing")
+    parser.add_argument("--list", "-l", action="store_true",
+                       help="List CUEMS processes and exit")
+    
+    args = parser.parse_args()
+    
+    if args.list:
+        processes = CuemsProcessKiller.find_cuems_processes()
+        if processes:
+            print(f"Found {len(processes)} CUEMS processes:")
+            for proc_info in processes:
+                status = proc_info['status']
+                print(f"  PID {proc_info['pid']:>6} [{status:>12}] {proc_info['name']} - {proc_info['cmdline'][:80]}...")
+        else:
+            print("No CUEMS processes found")
+        return
+    
+    print("CUEMS Process Killer")
+    print("===================")
+    
+    if args.dry_run:
+        print("DRY RUN MODE - No processes will be killed")
+    
+    success = CuemsProcessKiller.kill_cuems_processes(
+        force=args.force, 
+        dry_run=args.dry_run
+    )
+    
+    sys.exit(0 if success else 1)
+
+if __name__ == "__main__":
+    main() 
diff --git a/scripts/link-dev.sh b/scripts/link-dev.sh
new file mode 100755
index 0000000..ca4dbf5
--- /dev/null
+++ b/scripts/link-dev.sh
@@ -0,0 +1,52 @@
+#!/bin/bash
+# Replace the installed cuemsengine package under /usr/lib/cuems with a symlink
+# to the source tree so edits in src/cuems-engine are used by the system.
+# Requires sudo (to modify /usr/lib/cuems).
+#
+# Usage: run from the cuems-engine repo root, or from anywhere with CUEMS_ENGINE_SRC set:
+#   ./scripts/link-dev.sh
+#   sudo ./scripts/link-dev.sh
+#
+# To restore the installed package: reinstall the deb (e.g. dpkg -i ...cuems-engine*.deb).
+
+set -e
+
+SITE_PACKAGES="/usr/lib/cuems/lib/python3.11/site-packages"
+PACKAGE_NAME="cuemsengine"
+
+if [ -n "$CUEMS_ENGINE_SRC" ]; then
+    SOURCE_PKG="$CUEMS_ENGINE_SRC/src/cuemsengine"
+else
+    # Script is in .../cuems-engine/scripts/; repo root is parent of scripts/
+    REPO_ROOT="$(cd "$(dirname "$0")/.." && pwd)"
+    SOURCE_PKG="$REPO_ROOT/src/cuemsengine"
+fi
+
+if [ ! -d "$SOURCE_PKG" ]; then
+    echo "Source package not found: $SOURCE_PKG"
+    echo "Set CUEMS_ENGINE_SRC to the cuems-engine repo root, or run this script from the repo."
+    exit 1
+fi
+
+if [ ! -d "$SITE_PACKAGES" ]; then
+    echo "Site-packages not found: $SITE_PACKAGES"
+    echo "Install cuems-engine (and cuems-utils) first so /usr/lib/cuems exists."
+    exit 1
+fi
+
+INSTALLED_PKG="$SITE_PACKAGES/$PACKAGE_NAME"
+
+if [ -L "$INSTALLED_PKG" ]; then
+    echo "Already a symlink: $INSTALLED_PKG -> $(readlink "$INSTALLED_PKG")"
+    exit 0
+fi
+
+if [ -d "$INSTALLED_PKG" ]; then
+    echo "Removing installed package directory (will be replaced by symlink)..."
+    sudo rm -rf "$INSTALLED_PKG"
+fi
+
+echo "Linking $INSTALLED_PKG -> $SOURCE_PKG"
+sudo ln -s "$SOURCE_PKG" "$INSTALLED_PKG"
+echo "Done. Edits in $(dirname "$SOURCE_PKG") will be used by controller-engine and node-engine."
+echo "To restore the installed package, reinstall the cuems-engine deb."
diff --git a/scripts/node_engine.py b/scripts/node_engine.py
new file mode 100644
index 0000000..3e9e2c0
--- /dev/null
+++ b/scripts/node_engine.py
@@ -0,0 +1,51 @@
+#!/usr/bin/env python3
+"""
+CLI entry point for cuems-engine NodeEngine.
+
+Runs in foreground mode, designed for systemd services (Type=simple).
+Systemd handles process supervision, logging (journald), and restart.
+
+Example systemd service:
+    [Service]
+    Type=simple
+    ExecStart=/usr/lib/cuems/bin/node-engine
+    Restart=always
+"""
+
+import signal
+import argparse
+
+from cuemsutils.log import Logger
+from cuemsengine.NodeEngine import NodeEngine
+
+
+def main():
+    """Main entry point - run NodeEngine in foreground"""
+    parser = argparse.ArgumentParser(
+        description='CUEMS Node Engine',
+        formatter_class=argparse.RawDescriptionHelpFormatter,
+        epilog="""
+Runs in foreground mode. Designed for systemd services (Type=simple).
+Use Ctrl+C to stop when running manually.
+        """
+    )
+    parser.parse_args()
+    
+    Logger.info("Starting CUEMS Node Engine")
+    
+    engine = NodeEngine()
+    engine.start()
+    
+    try:
+        signal.pause()
+    except KeyboardInterrupt:
+        Logger.info("Received interrupt signal, stopping engine...")
+        engine.stop_all()
+    except Exception as e:
+        Logger.error(f"Engine error: {type(e).__name__}: {e}")
+        engine.stop_all()
+        raise
+
+
+if __name__ == '__main__':
+    main()
diff --git a/scripts/system_ports.py b/scripts/system_ports.py
new file mode 100644
index 0000000..a9c946b
--- /dev/null
+++ b/scripts/system_ports.py
@@ -0,0 +1,46 @@
+#!/usr/bin/env python3
+
+from cuemsengine.tools.system_ports import get_used_ports_with_pid
+
+def main():
+    from sys import argv
+    from json import dumps
+    show_help = "--help" in argv
+    json_output = "--json" in argv
+    user = argv[1] if len(argv) > 1 else None
+    
+    if show_help:
+        print("Port Recovery Utility")
+        print("-" * 30)
+        print(f"Usage: {argv[0]} [user] [--json] [--help]")
+        print("If --json is provided, the output will be in JSON format.")
+        print("If --help is provided, the help message will be displayed.")
+        print("-" * 30)
+        print("Python documentation:")
+        print(get_used_ports_with_pid.__doc__)
+        exit(0)
+
+    try:
+        used_ports = get_used_ports_with_pid(user)
+    except Exception as e:
+        print(f"Error getting used ports: {e}")
+        exit(1)
+    
+    if json_output:
+        print(dumps(used_ports, indent=4, default=str))
+        exit(0)
+    
+    if user:
+        print(f"Getting used ports for user containing: {user}")
+    else:
+        print("Getting all used ports")
+    if used_ports:
+        print(f"Found {len(used_ports)} processes using ports:")
+        for pid, port in sorted(used_ports.items()):
+            print(f"  PID {pid}: Port {port}")
+    else:
+        print("No used ports found.")
+
+if __name__ == "__main__":
+    main()
+
diff --git a/services/cuems-engine.service b/services/cuems-engine.service
deleted file mode 100644
index c6f82c8..0000000
--- a/services/cuems-engine.service
+++ /dev/null
@@ -1,13 +0,0 @@
-[Unit]
-Description=cuems-engine
-After=network.target network-online.target
-
-[Service]
-Type=simple
-Restart=always
-ExecStartPre=/bin/mkdir -p /var/run/cuems-engine
-PIDFile=/var/run/cuems-engine/service.pid
-ExecStart=/home/stagelab/.pyenv/versions/3.7.3/bin/python3.7 /home/stagelab/src/cuems/cuems-engine/src/engine_server_run.py
-
-[Install]
-WantedBy=multi-user.target
\ No newline at end of file
diff --git a/services/ws-server.service b/services/ws-server.service
deleted file mode 100644
index 2fd7847..0000000
--- a/services/ws-server.service
+++ /dev/null
@@ -1,13 +0,0 @@
-[Unit]
-Description=ws-server
-After=network.target network-online.target
-
-[Service]
-Type=simple
-Restart=always
-ExecStartPre=/bin/mkdir -p /var/run/ws-server
-PIDFile=/var/run/ws-server/service.pid
-ExecStart=/home/stagelab/.pyenv/versions/3.7.3/bin/python3.7 /home/stagelab/src/cuems/osc_control/src/ws-server.py
-
-[Install]
-WantedBy=multi-user.target
\ No newline at end of file
diff --git a/setup.py b/setup.py
deleted file mode 100644
index 0547617..0000000
--- a/setup.py
+++ /dev/null
@@ -1,33 +0,0 @@
-import setuptools
-
-with open("README.md", "r") as fh:
-    long_description = fh.read()
-
-setuptools.setup(
-    name="osc-control-stagelab", 
-    version="0.0.0",
-    author="Ion Reguera",
-    author_email="ion@stagelab.net",
-    description="A small example package",
-    long_description=long_description,
-    url="https://github.com/stagesoft/osc_control",
-    package_dir={'cuems': 'src/cuems'},
-
-    packages=setuptools.find_packages(where='src/cuems'),
-    package_data={  # Optional
-        'xml': ['settings.xml'],
-        'xds': ['settings.xds'],
-    },
-    entry_points={  # Optional
-        'console_scripts': [
-            'ossia_server=ossia_server:main',
-        ],
-    },
-
-    classifiers=[
-        "Programming Language :: Python :: 3",
-        "License :: OSI Approved :: MIT License",
-        "Operating System :: OS Independent",
-    ],
-    python_requires='>=3.7',
-)
\ No newline at end of file
diff --git a/src/cuems/ActionCue.py b/src/cuems/ActionCue.py
deleted file mode 100644
index ca25ad6..0000000
--- a/src/cuems/ActionCue.py
+++ /dev/null
@@ -1,125 +0,0 @@
-
-from os import path
-from pyossia import ossia
-from time import sleep
-from threading import Thread
-
-from .Cue import Cue
-# from .AudioPlayer import AudioPlayer
-from .OssiaServer import QueueOSCData
-from .log import logger
-
-class ActionCue(Cue):
-    def __init__(self, init_dict = None):
-        if init_dict:
-            super().__init__(init_dict)
-            
-        self._action_target_object = None
-
-    @property
-    def action_type(self):
-        return super().__getitem__('action_type')
-
-    @action_type.setter
-    def action_type(self, action_type):
-        super().__setitem__('action_type', action_type)
-
-    @property
-    def action_target(self):
-        return super().__getitem__('action_target')
-
-    @action_target.setter
-    def action_target(self, action_target):
-        super().__setitem__('action_target', action_target)
-
-    def arm(self, conf, ossia, armed_list, init = False):
-        self._conf = conf
-        self._armed_list = armed_list
-
-        if not self.enabled:
-            if self.loaded and self in self._armed_list:
-                self.disarm(ossia.conf_queue)
-            return False
-        elif self.loaded and not init:
-            if not self in self._armed_list:
-                self._armed_list.append(self)
-            return True
-
-        self.loaded = True
-        if not self in self._armed_list:
-            self._armed_list.append(self)
-
-        return True
-
-    def go(self, ossia, mtc):
-        if not self.loaded:
-            logger.error(f'{self.__class__.__name__} {self.uuid} not loaded to go...')
-            raise Exception(f'{self.__class__.__name__} {self.uuid} not loaded to go')
-        else:
-            # THREADED GO
-            thread = Thread(name = f'GO:{self.__class__.__name__}:{self.uuid}', target = self.go_thread, args = [ossia, mtc])
-            thread.start()
-
-    def go_thread(self, ossia, mtc):
-        # ARM NEXT TARGET
-        if self._target_object is not None:
-            self._target_object.arm(self._conf, ossia, self._armed_list)
-
-        # PREWAIT
-        if self.prewait > 0:
-            sleep(self.prewait.milliseconds / 1000)
-
-        # PLAY : specific audio cue stuff
-        if self.action_type == 'load':
-            self._action_target_object.arm(self._conf, ossia, self._armed_list)
-        elif self.action_type == 'unload':
-            self._action_target_object.disarm(ossia.conf_queue)
-        elif self.action_type == 'play':
-            self._action_target_object.go(ossia, mtc)
-        elif self.action_type == 'pause':
-            pass
-        elif self.action_type == 'stop':
-            pass
-        elif self.action_type == 'enable':
-            self._action_target_object.enabled = True
-        elif self.action_type == 'disable':
-            self._action_target_object.enabled = False
-        elif self.action_type == 'fade_in':
-            self._action_target_object.enabled = False
-        elif self.action_type == 'fade_out':
-            self._action_target_object.enabled = False
-        elif self.action_type == 'wait':
-            self._action_target_object.enabled = False
-        elif self.action_type == 'go_to':
-            self._action_target_object.enabled = False
-        elif self.action_type == 'pause_project':
-            self._action_target_object.enabled = False
-        elif self.action_type == 'resume_project':
-            self._action_target_object.enabled = False
-
-        # POSTWAIT
-        if self.postwait > 0:
-            sleep(self.postwait.milliseconds / 1000)
-
-        # POST-GO GO
-        if self.post_go == 'go':
-            self._target_object.go(ossia, mtc)
-
-        # DISARM
-        if self in self._armed_list:
-            self.disarm(ossia.conf_queue)
-
-    def disarm(self, ossia_queue):
-        if self.loaded is True:
-            try:
-                if self in self._armed_list:
-                    self._armed_list.remove(self)
-            except:
-                pass
-
-            self.loaded = False
-
-            return True
-        else:
-            return False
-
diff --git a/src/cuems/AudioCue.py b/src/cuems/AudioCue.py
deleted file mode 100644
index ccdadae..0000000
--- a/src/cuems/AudioCue.py
+++ /dev/null
@@ -1,235 +0,0 @@
-from os import path
-from pyossia import ossia
-from time import sleep
-from threading import Thread
-
-from .Cue import Cue
-from .CTimecode import CTimecode
-from .AudioPlayer import AudioPlayer
-from .OssiaServer import QueueOSCData
-from .log import logger
-
-class AudioCue(Cue):
-    # And dinamically attach it to the ossia for remote control it
-    OSC_AUDIOPLAYER_CONF = {'/quit' : [ossia.ValueType.Impulse, None],
-                            '/load' : [ossia.ValueType.String, None], 
-                            '/vol0' : [ossia.ValueType.Float, None],
-                            '/vol1' : [ossia.ValueType.Float, None],
-                            '/volmaster' : [ossia.ValueType.Float, None],
-                            '/play' : [ossia.ValueType.Impulse, None],
-                            '/stop' : [ossia.ValueType.Impulse, None],
-                            '/stoponlost' : [ossia.ValueType.Int, None],
-                            '/mtcfollow' : [ossia.ValueType.Int, None],
-                            '/offset' : [ossia.ValueType.Float, None],
-                            '/check' : [ossia.ValueType.Impulse, None]
-                            }
-
-    def __init__(self, init_dict = None):
-        super().__init__(init_dict)
-            
-        self._player = None
-        self._osc_route = None
-
-        # self.OSC_AUDIOPLAYER_CONF['/offset'] = [ossia.ValueType.Float, None]
-
-    @property
-    def master_vol(self):
-        return super().__getitem__('master_vol')
-
-    @master_vol.setter
-    def master_vol(self, master_vol):
-        super().__setitem__('master_vol', master_vol)
-
-    @property
-    def outputs(self):
-        return super().__getitem__('Outputs')
-
-    @outputs.setter
-    def outputs(self, outputs):
-        super().__setitem__('Outputs', outputs)
-
-    def player(self, player):
-        self._player = player
-
-    def osc_route(self, osc_route):
-        self._osc_route = osc_route
-
-    def arm(self, conf, ossia, armed_list, init = False):
-        self._conf = conf
-        self._armed_list = armed_list
-
-        if not self.enabled:
-            if self.loaded and self in self._armed_list:
-                self.disarm(ossia.conf_queue)
-            return False
-        elif self.loaded and not init:
-            if not self in self._armed_list:
-                self._armed_list.append(self)
-            return True
-
-        # Assign its own audioplayer object
-        try:
-            self._player = AudioPlayer( self._conf.players_port_index, 
-                                        self._conf.node_conf['audioplayer']['path'],
-                                        self._conf.node_conf['audioplayer']['args'],
-                                        str(path.join(self._conf.library_path, 'media', self.media['file_name'])))
-        except Exception as e:
-            raise e
-
-        self._player.start()
-
-        # And dinamically attach it to the ossia for remote control it
-        self._osc_route = f'/node{self._conf.node_conf["id"]:03}/audioplayer-{self.uuid}'
-
-        ossia.conf_queue.put(   QueueOSCData(  'add', 
-                                            self._osc_route, 
-                                            self._conf.node_conf['osc_dest_host'], 
-                                            self._player.port,
-                                            self._player.port + 1, 
-                                            self.OSC_AUDIOPLAYER_CONF))
-
-        self.loaded = True
-        if not self in self._armed_list:
-            self._armed_list.append(self)
-
-        # POST_GO CHAINED ARM
-        if self.post_go == 'go' and self._target_object:
-            self._target_object.arm(self._conf, ossia, self._armed_list, init)
-
-        return True
-
-    def go(self, ossia, mtc):
-        if not self.loaded:
-            logger.error(f'{self.__class__.__name__} {self.uuid} not loaded to go...')
-            raise Exception(f'{self.__class__.__name__} {self.uuid} not loaded to go')
-        else:
-            # THREADED GO
-            self._go_thread = Thread(name = f'GO:{self.__class__.__name__}:{self.uuid}', target = self.go_thread_func, args = [ossia, mtc])
-            self._go_thread.start()
-
-    def go_thread_func(self, ossia, mtc):
-        # ARM NEXT TARGET
-        if self.post_go != 'go' and self._target_object:
-            self._target_object.arm(self._conf, ossia, self._armed_list)
-
-        # PREWAIT
-        if self.prewait > 0:
-            sleep(self.prewait.milliseconds / 1000)
-
-        # PLAY : specific audio cue stuff
-            # Set offset
-        try:
-            key = f'{self._osc_route}/offset'
-            self._start_mtc = CTimecode(frames=mtc.main_tc.milliseconds)
-            self._end_mtc = self._start_mtc + (self.media.regions[0].out_time - self.media.regions[0].in_time)
-            offset_to_go = float(-(self._start_mtc.milliseconds) + self.media.regions[0].in_time.milliseconds)
-            ossia.oscquery_registered_nodes[key][0].parameter.value = offset_to_go
-            logger.info(key + " " + str(ossia.oscquery_registered_nodes[key][0].parameter.value))
-        except KeyError:
-            logger.debug(f'Key error 1 in go_callback {key}')
-
-            # Connect to mtc signal
-        try:
-            key = f'{self._osc_route}/mtcfollow'
-            ossia.oscquery_registered_nodes[key][0].parameter.value = 1
-        except KeyError:
-            logger.debug(f'Key error 2 in go_callback {key}')
-
-        # POSTWAIT
-        if self.postwait > 0:
-            sleep(self.postwait.milliseconds / 1000)
-
-        # POST-GO GO
-        if self.post_go == 'go' and self._target_object:
-                self._target_object.go(ossia, mtc)
-
-        try:
-            loop_counter = 0
-            duration = self.media.regions[0].out_time - self.media.regions[0].in_time
-
-            while not self.media.regions[0].loop or loop_counter < self.media.regions[0].loop:
-                while self._player.is_alive() and (mtc.main_tc.milliseconds < self._end_mtc.milliseconds):
-                    sleep(0.005)
-
-                # Recalculate offset and apply
-                self._start_mtc = CTimecode(frames=mtc.main_tc.milliseconds)
-                self._end_mtc = self._start_mtc + (duration)
-                offset_to_go = float(-(self._start_mtc.milliseconds) + self.media.regions[0].in_time.milliseconds)
-                key = f'{self._osc_route}/offset'
-                ossia.oscquery_registered_nodes[key][0].parameter.value = offset_to_go
-
-                loop_counter += 1
-                
-            try:
-                key = f'{self._osc_route}/mtcfollow'
-                ossia.oscquery_registered_nodes[key][0].parameter.value = 0
-            except KeyError:
-                logger.debug(f'Key error 2 in go_callback {key}')
-
-        except AttributeError:
-            pass
-
-        # POST-GO GO AT END
-        if self.post_go == 'go_at_end' and self._target_object:
-                self._target_object.go(ossia, mtc)
-
-        if self in self._armed_list:
-            self.disarm(ossia.conf_queue)
-
-    def disarm(self, ossia_queue):
-        if self.loaded is True:
-            try:
-                self._conf.players_port_index['used'].remove(self._player.port)
-                self._player.kill()
-                self._player = None
-
-                ossia_queue.put(QueueOSCData(   'remove', 
-                                                self._osc_route, 
-                                                dictionary = self.OSC_AUDIOPLAYER_CONF))
-
-            except Exception as e:
-                logger.warning(f'Could not properly unload {self.__class__.__name__} {self.uuid} : {e}')
-            
-            try:
-                if self in self._armed_list:
-                    self._armed_list.remove(self)
-            except:
-                pass
-
-            self.loaded = False
-
-            return True
-        else:
-            return False
-
-    def stop(self):
-        self._stop_requested = True
-        if self._player and self._player.is_alive():
-            self._player.kill()
-
-    def check_mappings(self, settings):
-        if settings.project_maps:
-            found = False
-            for output in self.outputs:
-                if output['output_name'] == 'default':
-                    found = True
-                    break
-                try:
-                    out_list = settings.project_maps['audio']['outputs']
-                except:
-                    found = False
-                else:
-                    for each_out in out_list:
-                        for each_map in each_out[0]['mappings']:
-                            if output['output_name'] == each_map['mapped_to']:
-                                found = True
-                                break
-
-            if not found:
-                return False 
-        else:
-            for output in self.outputs:
-                if output['output_name'] != 'default':
-                    output['output_name'] = 'default'
-
-        return True
diff --git a/src/cuems/AudioPlayer.py b/src/cuems/AudioPlayer.py
deleted file mode 100644
index cc8cef7..0000000
--- a/src/cuems/AudioPlayer.py
+++ /dev/null
@@ -1,136 +0,0 @@
-from subprocess import Popen, PIPE, STDOUT, CalledProcessError
-from threading import Thread
-import os
-import pyossia as ossia
-
-from .log import logger
-
-import time
-
-class AudioPlayer(Thread):
-    def __init__(self, port_index, path, args, media):
-        super().__init__()
-        self.port = port_index['start']
-        while self.port in port_index['used']:
-            self.port += 2
-
-        port_index['used'].append(self.port)
-            
-        self.stdout = None
-        self.stderr = None
-        # self.card_id = card_id
-        self.firstrun = True
-        self.path = path
-        self.args = args
-        self.media = media
-
-    '''        
-    def __init_thread(self):
-        super().__init__()
-        self.daemon = True
-    '''
-
-    def run(self):
-        if __debug__:
-            # logger.info('AudioPlayer starting on card:{}'.format(self.card_id))
-            logger.info(f'AudioPlayer starting for {self.media}')
-           
-        try:
-            # Calling audioplayer-cuems in a subprocess
-            process_call_list = [self.path]
-            if self.args:
-                for arg in self.args.split():
-                    process_call_list.append(arg)
-            process_call_list.extend(['--port', str(self.port), self.media])
-            # self.p=subprocess.Popen(process_call_list, shell=False, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
-            # self.stdout, self.stderr = self.p.communicate()
-
-            self.p = Popen(process_call_list, stdout=PIPE, stderr=STDOUT)
-            stdout_lines_iterator = iter(self.p.stdout.readline, b'')
-            while self.p.poll() is None:
-                for line in stdout_lines_iterator:
-                    logger.info(line)
-
-        except OSError as e:
-            # logger.warning("Failed to start AudioPlayer on card:{}".format(self.card_id))
-            logger.warning(f'Failed to start AudioPlayer for {self.media}')
-            logger.exception(e)
-        except CalledProcessError as e:
-            if self.p.returncode < 0:
-                raise CalledProcessError(self.p.returncode, self.p.args)
-
-    def kill(self):
-        self.p.kill()
-        self.started = False
-
-    def start(self):
-        if self.firstrun:
-            '''
-            self.__init_trhead()
-            Thread.start(self)
-            '''
-            super().start()
-            self.firstrun = False
-        else:
-            if self.is_alive():
-                logger.debug("AudioPlayer allready running")
-            else:
-                '''
-                self.__init_trhead()
-                Thread.start(self)
-                '''
-                super().start()
-
-'''
-class AudioPlayerRemote():
-    # class that exposes osc control of the player and manages the player
-    def __init__(self, port, card_id, path, args, media):
-        self.port = port
-        self.card_id = card_id
-        self.audioplayer = AudioPlayer(self.port, self.card_id, path, args, media)
-        self.__start_remote()
-
-    def __start_remote(self):
-        self.remote_osc_audioplayer = ossia.ossia.OSCDevice("remoteAudioPlayer{}".format(self.card_id), "127.0.0.1", self.port, self.port+1)
-
-        self.remote_audioplayer_quit_node = self.remote_osc_audioplayer.add_node("/audioplayer/quit")
-        self.audioplayer_quit_parameter = self.remote_audioplayer_quit_node.create_parameter(ossia.ValueType.Impulse)
-
-        self.remote_audioplayer_level_node = self.remote_osc_audioplayer.add_node("/audioplayer/level")
-        self.audioplayer_level_parameter = self.remote_audioplayer_level_node.create_parameter(ossia.ValueType.Int)
-
-        self.remote_audioplayer_load_node = self.remote_osc_audioplayer.add_node("/audioplayer/load")
-        self.audioplayer_load_parameter = self.remote_audioplayer_load_node.create_parameter(ossia.ValueType.String)
-
-    def start(self):
-        self.audioplayer.start()
-
-    def kill(self):
-        self.audioplayer.kill()
-
-    def load(self, load_path):
-        self.audioplayer_load_parameter.value = load_path
-
-    def level(self, level):
-        self.audioplayer_level_parameter.value = level
-
-    def quit(self):
-        self.audioplayer.kill()
-        self.audioplayer_quit_parameter.value = True
-
-class NodeAudioPlayers():
-    # class to group  al the audio players in a node
-
-    def __init__(self, audioplayer_settings):
-        #initialize array to store the player with the number of audio cards we have ( no more players than audio outputs for the moment)
-        self.aplayer=[None]*audioplayer_settings["audio_cards"]
-        #start a remote controller for each audio output (could be multiple channels), it will controll it own player
-        for i, v in enumerate(self.aplayer):
-            self.aplayer[i] = AudioPlayerRemote(audioplayer_settings["instance"][i]["osc_in_port"], i, audioplayer_settings["path"])
-    
-    def __getitem__(self, subscript):
-        return self.aplayer[subscript]
-
-    def len(self):
-        return len(self.aplayer)
-'''
\ No newline at end of file
diff --git a/src/cuems/CMLCuemsConverter.py b/src/cuems/CMLCuemsConverter.py
deleted file mode 100644
index e821aff..0000000
--- a/src/cuems/CMLCuemsConverter.py
+++ /dev/null
@@ -1,176 +0,0 @@
-import xmlschema
-from xmlschema.namespaces import XSI_NAMESPACE
-from xmlschema.etree import etree_element, lxml_etree_element, etree_register_namespace, \
-    lxml_etree_register_namespace
-from xmlschema.exceptions import XMLSchemaTypeError, XMLSchemaValueError
-from collections import namedtuple
-
-ElementData = namedtuple('ElementData', ['tag', 'text', 'content', 'attributes'])
-
-class CMLCuemsConverter(xmlschema.XMLSchemaConverter):
-
-    def __init__(self, namespaces=None, dict_class=None, list_class=None,
-                 etree_element_class=None, text_key='&', attr_prefix='',
-                 cdata_prefix=None, indent=4, strip_namespaces=True,
-                 preserve_root=False, force_dict=False, force_list=False, **kwargs):
-
-        if etree_element_class is None or etree_element_class is etree_element:
-            register_namespace = etree_register_namespace
-        elif etree_element_class is lxml_etree_element:
-            register_namespace = lxml_etree_register_namespace
-        else:
-            raise XMLSchemaTypeError("unsupported element class {!r}".format(etree_element_class))
-
-        super(CMLCuemsConverter, self).__init__(namespaces, register_namespace, strip_namespaces)
-
-        self.dict = dict_class or dict
-        self.list = list_class or list
-        self.etree_element_class = etree_element_class or etree_element
-        self.text_key = text_key
-        self.attr_prefix = attr_prefix
-        self.cdata_prefix = cdata_prefix
-        self.indent = indent
-        self.preserve_root = preserve_root
-        self.force_dict = force_dict
-        self.force_list = force_list
- 
-      
-    def element_decode(self, data, xsd_element, xsd_type=None, level=0):
-        """
-        Converts a decoded element data to a data structure.
-        :param data: ElementData instance decoded from an Element node.
-        :param xsd_element: the `XsdElement` associated to decoded the data.
-        :param xsd_type: optional `XsdType` for supporting dynamic type through \
-        xsi:type or xs:alternative.
-        :param level: the level related to the decoding process (0 means the root).
-        :return: a data structure containing the decoded data.
-        """
-        xsd_type = xsd_type or xsd_element.type
-        result_dict = self.dict()
-        if level == 0 and xsd_element.is_global() and not self.strip_namespaces and self:
-            schema_namespaces = set(xsd_element.namespaces.values())
-            result_dict.update(
-                ('%s:%s' % (self.ns_prefix, k) if k else self.ns_prefix, v)
-                for k, v in self._namespaces.items()
-                if v in schema_namespaces or v == XSI_NAMESPACE
-            )
-
-        if xsd_type.is_simple() or xsd_type.has_simple_content():
-            if data.attributes or self.force_dict and not xsd_type.is_simple():
-                result_dict.update(t for t in self.map_attributes(data.attributes))
-                if data.text is not None and data.text != '':
-                    result_dict[self.text_key] = data.text
-                return result_dict
-            else:
-                return data.text if data.text != '' else None
-        else:
-            if data.attributes:
-                result_dict.update(t for t in self.map_attributes(data.attributes))
-
-            has_single_group = xsd_type.content_type.is_single()
-            list_types = list if self.list is list else (self.list, list)
-            dict_types = dict if self.dict is dict else (self.dict, dict)
-            if data.content:
-                for name, value, xsd_child in self.map_content(data.content):
-                    try:
-                        if isinstance(result_dict, list_types):
-                            result = result_dict
-                        else:
-                            result = result_dict[name]
-                    except KeyError:
-                        if xsd_child is not None and not xsd_child.is_single():
-                            result_dict = [{name:value}]
-                        else:
-                            result_dict[name] = self.list([value]) if self.force_list else value
-                    else:
-                        if isinstance(result, dict_types):
-                            result_dict[name] = self.list([result, value])
-                        elif isinstance(result, list_types) or not result:
-                            result_dict.append({name:value})
-                        else:
-                            result.append(value)
-                  
-
-            elif data.text is not None and data.text != '':
-                result_dict[self.text_key] = data.text
-
-            if level == 0 and self.preserve_root:
-                return self.dict(
-                    [(self.map_qname(data.tag), result_dict if result_dict else None)]
-                )
-            return result_dict if result_dict else None
-
-    def element_encode(self, obj, xsd_element, level=0):
-        """
-        Extracts XML decoded data from a data structure for encoding into an ElementTree.
-        :param obj: the decoded object.
-        :param xsd_element: the `XsdElement` associated to the decoded data structure.
-        :param level: the level related to the encoding process (0 means the root).
-        :return: an ElementData instance.
-        """
-        if level != 0:
-            tag = xsd_element.name
-        elif not self.preserve_root:
-            tag = xsd_element.qualified_name
-        else:
-            tag = xsd_element.qualified_name
-            try:
-                obj = obj.get(tag, xsd_element.local_name)
-            except (KeyError, AttributeError, TypeError):
-                pass
-
-        if not isinstance(obj, (self.dict, dict)):
-            if xsd_element.type.is_simple() or xsd_element.type.has_simple_content():
-                return ElementData(tag, obj, None, {})
-            elif xsd_element.type.mixed and not isinstance(obj, list):
-                return ElementData(tag, obj, None, {})
-            else:
-                return ElementData(tag, None, obj, {})
-
-        text = None
-        content = []
-        attributes = {}
-
-        for name, value in obj.items():
-            if name == self.text_key and self.text_key:
-                text = obj[self.text_key]
-            elif (self.cdata_prefix and name.startswith(self.cdata_prefix)) or \
-                    name[0].isdigit() and self.cdata_prefix == '':
-                index = int(name[len(self.cdata_prefix):])
-                content.append((index, value))
-            elif name == self.ns_prefix:
-                self[''] = value
-            elif name.startswith('%s:' % self.ns_prefix):
-                if not self.strip_namespaces:
-                    self[name[len(self.ns_prefix) + 1:]] = value
-            elif self.attr_prefix and name.startswith(self.attr_prefix):
-                attr_name = name[len(self.attr_prefix):]
-                ns_name = self.unmap_qname(attr_name, xsd_element.attributes)
-                attributes[ns_name] = value
-            elif not isinstance(value, (self.list, list)) or not value:
-                content.append((self.unmap_qname(name), value))
-            elif isinstance(value[0], (self.dict, dict, self.list, list)):
-                ns_name = self.unmap_qname(name)
-                content.extend((ns_name, item) for item in value)
-            else:
-                ns_name = self.unmap_qname(name)
-                for xsd_child in xsd_element.type.content_type.iter_elements():
-                    matched_element = xsd_child.match(ns_name, resolve=True)
-                    if matched_element is not None:
-                        if matched_element.type.is_list():
-                            content.append((ns_name, value))
-                        else:
-                            content.extend((ns_name, item) for item in value)
-                        break
-                else:
-                    if self.attr_prefix == '' and ns_name not in attributes:
-                        for key, xsd_attribute in xsd_element.attributes.items():
-                            if xsd_attribute.is_matching(ns_name):
-                                attributes[key] = value
-                                break
-                        else:
-                            content.append((ns_name, value))
-                    else:
-                        content.append((ns_name, value))
-
-        return ElementData(tag, text, content, attributes)
\ No newline at end of file
diff --git a/src/cuems/CTimecode.py b/src/cuems/CTimecode.py
deleted file mode 100644
index 6420194..0000000
--- a/src/cuems/CTimecode.py
+++ /dev/null
@@ -1,158 +0,0 @@
-from timecode import Timecode
-import json
-
-#TODO: !IMPORTANT! fix milisecond parseing with more than 3 digits and leading 0's; Fix division returnig to 23:59...
-class CTimecode(Timecode):
-    def __init__(self, init_dict = None, start_timecode=None, start_seconds=None, frames=None, framerate='ms'):
-        if init_dict is not None:
-            super().__init__(framerate, init_dict, start_seconds, frames)
-        else:
-            if start_seconds == 0:
-                start_seconds = None
-                frames = None
-            super().__init__(framerate, start_timecode, start_seconds, frames)
-    
-    @classmethod
-    def from_dict(cls, init_dict):
-        return cls(init_dict =  init_dict)
-
-    @property
-    def milliseconds(self):
-        """returns time as milliseconds
-        """
-        #TODO: float math for other framerates                               
-        millis_per_frame = 1000 / float(self._framerate)
-        return int(millis_per_frame * self.frame_number)
-
-    def return_in_other_framerate(self, framerate):
-        """returns a copy of the object with a different framerate.
-        """
-        new = CTimecode(framerate=framerate, start_seconds=float(self.milliseconds / 1000))
-        return new
-
-    def __hash__(self):
-        return hash((self.milliseconds, self.milliseconds))
-    
-    def __eq__(self, other):
-        """Compares seconds of tc""" #TODO: decide if we cheek framerate and frame equality or time equiality 
-        if isinstance(other, CTimecode):
-            return self.milliseconds == other.milliseconds
-        return NotImplemented
-
-    def __ne__(self, other):
-        """Compares seconds of tc""" #TODO: decide if we cheek framerate and frame equality or time equiality 
-        if isinstance(other, CTimecode):
-            return self.milliseconds != other.milliseconds
-        return NotImplemented
-
-    def __lt__(self, other):
-        """Compares seconds of tc""" #TODO: decide if we cheek framerate and frame equality or time equiality 
-        if isinstance(other, CTimecode):
-            return self.milliseconds < other.milliseconds
-        elif isinstance(other, int):
-            return self.milliseconds < other
-        elif isinstance(other, type(None)):
-            return other
-
-        return NotImplemented
-
-    def __le__(self, other):
-        """Compares seconds of tc""" #TODO: decide if we cheek framerate and frame equality or time equiality 
-        if isinstance(other, CTimecode):
-            return self.milliseconds <= other.milliseconds
-        elif isinstance(other, type(None)):
-            return other
-        return NotImplemented
-
-    def __gt__(self, other):
-        """Compares seconds of tc""" #TODO: decide if we cheek framerate and frame equality or time equiality 
-        if isinstance(other, CTimecode):
-            return self.milliseconds > other.milliseconds
-        elif isinstance(other, int):
-            return self.milliseconds > other
-        elif isinstance(other, type(None)):
-            return self 
-        return NotImplemented
-
-    def __ge__(self, other):
-        """Compares seconds of tc""" #TODO: decide if we cheek framerate and frame equality or time equiality 
-        if isinstance(other, CTimecode):
-            return self.milliseconds >= other.milliseconds
-        elif isinstance(other, type(None)):
-            return self
-        return NotImplemented
-
-    def __add__(self, other):
-        """returns new CTimecode instance with the given timecode or frames
-        added to this one
-        """
-        # duplicate current one
-        tc = CTimecode(framerate=self._framerate, frames=self.frames)
-
-        if isinstance(other, CTimecode):
-            tc.add_frames(other.frames)
-        elif isinstance(other, int):
-            tc.add_frames(other)
-        else:
-            raise CTimecodeError(
-                'Type %s not supported for arithmetic.' %
-                other.__class__.__name__
-            )
-
-        return tc
-
-    def __sub__(self, other):
-        """returns new CTimecode instance with subtracted value"""
-        if isinstance(other, CTimecode):
-            subtracted_frames = self.frames - other.frames
-        elif isinstance(other, int):
-            subtracted_frames = self.frames - other
-        else:
-            raise CTimecodeError(
-                'Type %s not supported for arithmetic.' %
-                other.__class__.__name__
-            )
-
-        return CTimecode(framerate=self._framerate, frames=subtracted_frames)
-
-    def __mul__(self, other):
-        """returns new CTimecode instance with multiplied value"""
-        if isinstance(other, CTimecode):
-            multiplied_frames = self.frames * other.frames
-        elif isinstance(other, int):
-            multiplied_frames = self.frames * other
-        else:
-            raise CTimecodeError(
-                'Type %s not supported for arithmetic.' %
-                other.__class__.__name__
-            )
-
-        return CTimecode(framerate=self._framerate, frames=multiplied_frames)
-
-    def __truediv__(self, other):
-        """returns new CTimecode instance with divided value"""
-        if isinstance(other, CTimecode):
-            div_frames = self.frames / other.frames
-        elif isinstance(other, int):
-            div_frames = self.frames / other
-        else:
-            raise CTimecodeError(
-                'Type %s not supported for arithmetic.' %
-                other.__class__.__name__
-            )
-
-        return CTimecode(framerate=self._framerate, frames=div_frames)
-
-    def __str__(self):
-        return self.tc_to_string(*self.frames_to_tc(self.frames))
-
-    def __iter__(self):
-        yield ('timecode', self.__str__())
-        yield ('framerate', self.framerate)
-    
-
-
-class CTimecodeError(Exception):
-    """Raised when an error occurred in timecode calculation
-    """
-    pass
\ No newline at end of file
diff --git a/src/cuems/ComunicatorServices.py b/src/cuems/ComunicatorServices.py
new file mode 100644
index 0000000..3f9af62
--- /dev/null
+++ b/src/cuems/ComunicatorServices.py
@@ -0,0 +1,148 @@
+from abc import ABC, abstractmethod
+from collections.abc import Callable
+import asyncio
+import json
+from pynng import Req0, Rep0
+from cuemsutils.log import logged, Logger
+
+class ComunicatorService(ABC):
+    @abstractmethod
+    def __init__(self, address:str):
+        self.address = address
+
+    @abstractmethod
+    def send_request(self, resquest:dict) -> dict:
+        """ Send request dic and return response dict  """
+
+    @abstractmethod
+    def reply(self, request_processor:Callable[[dict], dict]) -> dict:
+        """ Get request, give it to request processor, and return the response from it  """
+
+
+
+class Nng_request_response(ComunicatorService):
+    """ Communicates over NNG (nanomsg)  """,
+
+    def __init__(self, address, resquester_dials=True):
+        """
+        Initialize Nng_request_resopone instance with address and dialing/listening mode.
+
+        Parameters:
+        - address (str): The address to connect or listen for connections.
+        - resquester_dials (bool, optional): If True, the instance requester will dial the address and replier will listen. If False, it will be the oposite way, requester listens and replier dials. Default is True.
+
+        The instance will set up the parameters for request and reply sockets based on the resquester_dials value.
+        """
+        self.address = address
+        if resquester_dials:
+            self.params_request = {'dial': self.address}
+            self.params_reply = {'listen': self.address}
+        else: 
+            self.params_request = {'listen': self.address}
+            self.params_reply = {'dial': self.address}
+
+
+
+    @logged
+    async def send_request(self, request):
+        """
+        Send a request to the specified address and return the response.
+
+        Parameters:
+        - request (dict): The request to be sent. It should be a dictionary.
+
+        Returns:
+        - dict: The response received from the address. It will be a dictionary.
+        """
+        with Req0(**self.params_request) as socket:
+            while await asyncio.sleep(0, result=True):
+                Logger.debug(f"Sending: {request}")
+                encoded_request = json.dumps(request).encode()
+                await socket.asend(encoded_request)
+                response = await self._get_response(socket)
+                decoded_response = json.loads(response.decode())
+                Logger.debug(f"receiving: {decoded_response}")
+                return decoded_response
+
+    async def _get_response(self, socket):
+        response = await socket.arecv()
+        return response
+
+    @logged
+    async def reply(self, request_processor):
+        """
+        Asynchronously handle incoming requests and respond using the provided request processor.
+
+        This function sets up a Rep0 socket with parameters based on the instance's configuration.
+        It then enters a loop where it listens for incoming requests, processes them using the provided
+        request processor, and sends the response back to the requester.
+        Parameters:
+        - request_processor (Callable[[dict], dict]): A function that takes a request dictionary as input and returns a response dictionary.
+
+        Returns:
+        - None: This function is designed to run indefinitely, handling incoming requests and responses.
+        """
+        with Rep0(**self.params_reply) as socket:
+            while await asyncio.sleep(0, result=True):
+                request = await socket.arecv()
+                decoded_request = json.loads(request.decode())  # Parse the JSON request
+                Logger.debug(f"Received: {decoded_request}")
+                response = request_processor(decoded_request)
+                encoded_response = json.dumps(response).encode()
+                await self._respond(socket, encoded_response)
+
+    async def _respond(self, socket, encoded_response):
+        await socket.asend(encoded_response)
+
+    def sync_send_request(self, request):
+        """
+        Synchronously send a request to the specified address and return the response.
+
+        This function is a wrapper around the asynchronous `send_request` method. It uses
+        `asyncio.run` to run the asynchronous function and wait for its completion.
+
+        Parameters:
+        - request (dict): The request to be sent. It should be a dictionary.
+
+        Returns:
+        - dict: The response received from the address. It will be a dictionary.
+        """
+        response = asyncio.run(self.send_request(request))
+        return response
+
+    def sync_reply(self, request_processor):
+        """
+        Synchronously handle incoming requests and respond using the provided request processor.
+
+        This function is a wrapper around the asynchronous `reply` method. It uses
+        `asyncio.run` to run the asynchronous function and wait for its completion.
+
+        Parameters:
+        - request_processor (Callable[[dict], dict]): A function that takes a request dictionary as input and returns a response dictionary.
+
+        Returns:
+        - None
+        """
+        asyncio.run(self.reply(request_processor))
+
+class Comunicator(ComunicatorService):
+    def __init__(self, address, comunicator_service = Nng_request_response, nng_mode=True):
+        self.address = address
+        self.nng_mode = nng_mode
+        self.comunicator_service = comunicator_service(self.address, resquester_dials=self.nng_mode)
+
+    async def send_request(self, request):
+        response = await self.comunicator_service.send_request(request)
+        return response
+
+    async def reply(self, request_processor):
+       await self.comunicator_service.reply(request_processor)
+
+
+    def sync_send_request(self, request):
+        response = self.comunicator_service.sync_send_request(request)
+        return response
+    
+    
+    def sync_reply(self, request_processor):
+        self.comunicator_service.sync_reply(request_processor)
diff --git a/src/cuems/ConfigManager.py b/src/cuems/ConfigManager.py
deleted file mode 100644
index 843d671..0000000
--- a/src/cuems/ConfigManager.py
+++ /dev/null
@@ -1,253 +0,0 @@
-from threading import Thread
-from os import path, mkdir, environ
-from .Settings import Settings
-from .log import logger
-
-class ConfigManager(Thread):
-    def __init__(self, path, *args, **kwargs):
-        super().__init__(name='CfgMan', args=args, kwargs=kwargs)
-        self.cuems_conf_path = path
-        self.library_path = None
-        self.tmp_upload_path = None
-        self.database_name = None
-        self.node_conf = {}
-        self.node_outputs = {}
-        self.project_conf = {}
-        self.project_maps = {}
-        self.default_mappings = False
-        self.load_node_conf()
-
-        self.players_port_index = { "start":int(self.node_conf['osc_in_port_base']), 
-                                    "used":[]
-                                    }
-
-        self.load_node_outputs()
-
-        self.start()
-
-    def load_node_conf(self):
-        settings_schema = path.join(self.cuems_conf_path, 'settings.xsd')
-        settings_file = path.join(self.cuems_conf_path, 'settings.xml')
-        try:
-            engine_settings = Settings(schema=settings_schema, xmlfile=settings_file)
-        except FileNotFoundError as e:
-            raise e
-
-        if engine_settings['Settings']['library_path'] == None:
-            logger.warning('No library path specified in settings. Assuming default ~/cuems_library.')
-            self.library_path = path.join(environ['HOME'], 'cuems_library')
-        else:
-            self.library_path = engine_settings['Settings']['library_path']
-
-        if engine_settings['Settings']['tmp_upload_path'] == None:
-            logger.warning('No temp upload path specified in settings. Assuming default /tmp/cuemsupload.')
-            self.tmp_upload_path = path.join('/', 'tmp', 'cuemsupload')
-        else:
-            self.tmp_upload_path = engine_settings['Settings']['tmp_upload_path']
-
-        if engine_settings['Settings']['database_name'] == None:
-            logger.warning('No database name specified in settings. Assuming default project-manager.db.')
-            self.database_name = 'project-manager.db'
-        else:
-            self.database_name = engine_settings['Settings']['database_name']
-
-        # Now we know where the library is, let's check it out
-        self.check_dir_hierarchy()
-
-        self.node_conf = engine_settings['Settings']['node']
-
-        logger.info(f'Cuems node_{self.node_conf["id"]:03} config loaded')
-        #logger.info(f'Node conf: {self.node_conf}')
-        #logger.info(f'Audio player conf: {self.node_conf["audioplayer"]}')
-        #logger.info(f'Video player conf: {self.node_conf["videoplayer"]}')
-        #logger.info(f'DMX player conf: {self.node_conf["dmxplayer"]}')
-
-    def load_node_outputs(self):
-        settings_schema = path.join(self.cuems_conf_path, 'project_mappings.xsd')
-        settings_file = path.join(self.cuems_conf_path, 'default_mappings.xml')
-        try:
-            node_outputs = Settings(schema=settings_schema, xmlfile=settings_file).copy()
-            node_outputs.pop('xmlns:cms')
-            node_outputs.pop('xmlns:xsi')
-            node_outputs.pop('xsi:schemaLocation')
-        except FileNotFoundError as e:
-            raise e
-        except KeyError:
-            pass
-
-        for key, value in node_outputs.items():
-            if key == 'audio':
-                if not value:
-                    break
-                
-                for item in value:
-                    if 'outputs' in item.keys() and item['outputs']:
-                        self.node_outputs['audio_outputs'] = []
-                        for subitem in item['outputs']:
-                            self.node_outputs['audio_outputs'].append(subitem['output']['name'])
-                    elif 'default_output' in item.keys():
-                        self.node_outputs['default_audio_output'] = item['default_output']
-                    elif 'inputs' in item.keys() and item['inputs']:
-                        self.node_outputs['audio_inputs'] = []
-                        for subitem in item['inputs']:
-                            self.node_outputs['audio_inputs'].append(subitem['input']['name'])
-                    elif 'default_input' in item.keys():
-                        self.node_outputs['default_audio_input'] = item['default_input']
-            elif key == 'video':
-                if not value:
-                    break
-
-                for item in value:
-                    if 'outputs' in item.keys() and item['outputs']:
-                        self.node_outputs['video_outputs'] = []
-                        for subitem in item['outputs']:
-                            self.node_outputs['video_outputs'].append(subitem['output']['name'])
-                    elif 'default_output' in item.keys():
-                        self.node_outputs['default_video_output'] = item['default_output']
-                    elif 'inputs' in item.keys() and item['inputs']:
-                        self.node_outputs['video_inputs'] = []
-                        for subitem in item['inputs']:
-                            self.node_outputs['video_inputs'].append(subitem['input']['name'])
-                    elif 'default_input' in item.keys():
-                        self.node_outputs['default_video_input'] = item['default_input']
-            elif key == 'dmx':
-                self.node_outputs['dmx_outputs'] = []
-                if not value:
-                    break
-
-                for item in value:
-                    if 'outputs' in item.keys() and item['outputs']:
-                        self.node_outputs['dmx_outputs'] = []
-                        for subitem in item['outputs']:
-                            self.node_outputs['dmx_outputs'].append(subitem['output']['name'])
-                    elif 'default_output' in item.keys():
-                        self.node_outputs['default_dmx_output'] = item['default_output']
-                    elif 'inputs' in item.keys():
-                        self.node_outputs['dmx_inputs'] = []
-                        for subitem in item['inputs'] and item['inputs']:
-                            self.node_outputs['dmx_inputs'].append(subitem['input']['name'])
-                    elif 'default_input' in item.keys():
-                        self.node_outputs['default_dmx_input'] = item['default_input']
-
-    def load_project_settings(self, project_uname):
-        conf = {}
-        try:
-            settings_schema = path.join(self.cuems_conf_path, 'project_settings.xsd')
-            settings_path = path.join(self.library_path, 'projects', project_uname, 'settings.xml')
-            conf = Settings(settings_schema, settings_path)
-        except FileNotFoundError as e:
-            raise e
-        except Exception as e:
-            logger.exception(e)
-
-        conf.pop('xmlns:cms')
-        conf.pop('xmlns:xsi')
-        conf.pop('xsi:schemaLocation')
-        self.project_conf = conf.copy()
-        for key, value in self.project_conf.items():
-            corrected_dict = {}
-            if value:
-                for item in value:
-                    corrected_dict.update(item)
-                self.project_conf[key] = corrected_dict
-
-        logger.info(f'Project {project_uname} settings loaded')
-
-    def load_project_mappings(self, project_uname):
-        maps = {}
-        try:
-            mappings_schema = path.join(self.cuems_conf_path, 'project_mappings.xsd')
-            mappings_path = path.join(self.library_path, 'projects', project_uname, 'mappings.xml')
-            maps = Settings(mappings_schema, mappings_path)
-            self.default_mappings = False
-        except Exception as e:
-            logger.info(f'Project mappings not found. Adopting default mappings.')
-
-            try:
-                mappings_schema = path.join(self.cuems_conf_path, 'project_mappings.xsd')
-                mappings_path = path.join(self.cuems_conf_path, 'default_mappings.xml')
-                maps = Settings(mappings_schema, mappings_path)
-                self.default_mappings = True
-            except Exception as e:
-                logger.error(f"Default mappings file not found. Project can't be loaded")
-                raise e
-
-        maps.pop('xmlns:cms')
-        maps.pop('xmlns:xsi')
-        maps.pop('xsi:schemaLocation')
-        self.project_maps = maps.copy()
-        # By now we need to correct the data structure from the xml
-        # the converter is not getting what we really intended but we'll
-        # correct it here by the moment
-        try:
-            for key, value in self.project_maps.items():
-                if value:
-                    corrected_dict = {}
-                    for item in value:
-                        corrected_dict.update(item)
-                    self.project_maps[key] = corrected_dict
-            
-            for key, value in self.project_maps.items():
-                if value:
-                    for subkey, subvalue in value.items():
-                        new_list = []
-                        if isinstance(subvalue, list):
-                            for elem in subvalue:
-                                if isinstance(elem, dict):
-                                    new_list.append(list(elem.values()))
-                                else:
-                                    new_list.append(elem)
-                            value[subkey] = new_list
-        except Exception as e:
-            logger.error(f"Error loading project mappings. {e}")
-        else:
-            logger.info(f'Project {project_uname} mappings loaded')
-
-    def get_video_player_id(self, mapping_name):
-        if mapping_name == 'default':
-            return self.node_conf['default_video_output']
-        else:
-            for each_out in self.project_maps['video']['outputs']:
-                for each_map in each_out[0]['mappings']:
-                    if mapping_name == each_map['mapped_to']:
-                        return each_out[0]['name']
-
-        raise Exception(f'Video output wrongly mapped')
-
-    def get_audio_output_id(self, mapping_name):
-        if mapping_name == 'default':
-            return self.node_conf['default_audio_output']
-        else:
-            for each_out in self.project_maps['audio']['outputs']:
-                for each_map in each_out[0]['mappings']:
-                    if mapping_name == each_map['mapped_to']:
-                        return each_out[0]['name']
-
-        raise Exception(f'Audio output wrongly mapped')
-
-    def check_dir_hierarchy(self):
-        try:
-            if not path.exists(self.library_path):
-                mkdir(self.library_path)
-                logger.info(f'Creating library forlder {self.library_path}')
-
-            if not path.exists( path.join(self.library_path, 'projects') ) :
-                mkdir(path.join(self.library_path, 'projects'))
-
-            if not path.exists( path.join(self.library_path, 'media') ) :
-                mkdir(path.join(self.library_path, 'media'))
-
-            if not path.exists( path.join(self.library_path, 'trash') ) :
-                mkdir(path.join(self.library_path, 'trash'))
-
-            if not path.exists( path.join(self.library_path, 'trash', 'projects') ) :
-                mkdir(path.join(self.library_path, 'trash', 'projects'))
-
-            if not path.exists( path.join(self.library_path, 'trash', 'media') ) :
-                mkdir(path.join(self.library_path, 'trash', 'media'))
-
-            if not path.exists( self.tmp_upload_path ) :
-                mkdir( self.tmp_upload_path )
-
-        except Exception as e:
-            logger.error("error: {} {}".format(type(e), e))
diff --git a/src/cuems/Cue.py b/src/cuems/Cue.py
deleted file mode 100644
index 60cb970..0000000
--- a/src/cuems/Cue.py
+++ /dev/null
@@ -1,248 +0,0 @@
-from .CTimecode import CTimecode
-from .CueOutput import AudioCueOutput, VideoCueOutput, DmxCueOutput
-from .Media import Media
-from .log import logger
-import uuid as uuid_module
-from time import sleep
-from threading import Thread
-
-class Cue(dict):
-    def __init__(self, init_dict = None):
-        if init_dict:
-            super().__init__(init_dict)
-            
-        self._target_object = None
-        self._conf = None
-        self._armed_list = None
-        self._start_mtc = CTimecode()
-        self._end_mtc = CTimecode()
-        self._end_reached = False
-        self._go_thread = None
-        self._stop_requested = False
-
-    @property
-    def uuid(self):
-        return super().__getitem__('uuid')
-
-    @uuid.setter
-    def uuid(self, uuid):
-        super().__setitem__('uuid', uuid)
-
-    @property
-    def id(self):
-        return super().__getitem__('id')
-
-    @id.setter
-    def id(self, id):
-        super().__setitem__('id', id)
-
-    @property
-    def name(self):
-        return super().__getitem__('name')
-
-    @name.setter
-    def name(self, name):
-        super().__setitem__('name', name)
-
-    @property
-    def description(self):
-        return super().__getitem__('description')
-
-    @description.setter
-    def description(self, description):
-        super().__setitem__('description', description)
-
-    @property
-    def enabled(self):
-        return super().__getitem__('enabled')
-
-    @enabled.setter
-    def enabled(self, enabled):
-        super().__setitem__('enabled', enabled)
-
-    @property
-    def loaded(self):
-        return super().__getitem__('loaded')
-
-    @loaded.setter
-    def loaded(self, loaded):
-        super().__setitem__('loaded', loaded)
-
-    @property
-    def timecode(self):
-        return super().__getitem__('timecode')
-
-    @timecode.setter
-    def timecode(self, timecode):
-        super().__setitem__('timecode', timecode)
-
-    @property
-    def offset(self):
-        return super().__getitem__('offset')
-
-    @offset.setter
-    def offset(self, offset):
-        self.__setitem__('offset', offset)
-
-    @property
-    def loop(self):
-        return super().__getitem__('loop')
-
-    @loop.setter
-    def loop(self, loop):
-        super().__setitem__('loop', loop)
-
-    @property
-    def prewait(self):
-        return super().__getitem__('prewait')
-
-    @prewait.setter
-    def prewait(self, prewait):
-        super().__setitem__('prewait', prewait)
-
-    @property
-    def postwait(self):
-        return super().__getitem__('postwait')
-
-    @postwait.setter
-    def postwait(self, postwait):
-        super().__setitem__('postwait', postwait)
-
-    @property
-    def post_go(self):
-        return super().__getitem__('post_go')
-
-    @post_go.setter
-    def post_go(self, post_go):
-        super().__setitem__('post_go', post_go)
-
-    @property
-    def target(self):
-        return super().__getitem__('target')
-
-    @target.setter
-    def target(self, target):
-        super().__setitem__('target', target)
-
-    @property
-    def ui_properties(self):
-        return super().__getitem__('ui_properties')
-
-    @ui_properties.setter
-    def ui_properties(self, ui_properties):
-        super().__setitem__('ui_properties', ui_properties)
-
-    @property
-    def media(self):
-        return super().__getitem__('Media')
-
-    @media.setter
-    def media(self, media):
-        super().__setitem__('Media', media)
-
-    def target_object(self, target_object):
-        self._target_object = target_object
-
-    def type(self):
-        return type(self)
-
-    def __setitem__(self, key, value):
-        if (key in ['offset', 'prewait', 'postwait']) and (value not in (None, "")):
-            if isinstance(value, CTimecode):
-                ctime_value = value
-            else:
-                if isinstance(value, (int, float)):
-                    ctime_value = CTimecode(start_seconds = value)
-                    ctime_value.frames = ctime_value.frames + 1
-                elif isinstance(value, str):
-                    ctime_value = CTimecode(value)
-                elif isinstance(value, dict):
-                    dict_timecode = value.pop('CTimecode', None)
-                    if dict_timecode is None:
-                        ctime_value = CTimecode()
-                    elif isinstance(dict_timecode, int):
-                        ctime_value = CTimecode(start_seconds = dict_timecode)
-                    else:
-                        ctime_value = CTimecode(dict_timecode)
-
-            super().__setitem__(key, ctime_value)
-
-        else:
-            super().__setitem__(key, value)
-
-    def arm(self, conf, ossia, armed_list, init = False):
-        self._conf = conf
-        self._armed_list = armed_list
-
-        if not self.enabled:
-            if self.loaded and self in self._armed_list:
-                self.disarm(ossia.conf_queue)
-            return False
-        elif self.loaded and not init:
-            if not self in self._armed_list:
-                self._armed_list.append(self)
-            return True
-
-        if self.post_go == 'go':
-            self._target_object.arm(self._conf, ossia, self._armed_list, init)
-
-        return True
-
-    def go(self, ossia, mtc):
-        if not self.loaded:
-            logger.error(f'{self.__class__.__name__} {self.uuid} not loaded to go...')
-            raise Exception(f'{self.__class__.__name__} {self.uuid} not loaded to go')
-
-        else:
-            # THREADED GO
-            thread = Thread(name = f'GO:{self.__class__.__name__}:{self.uuid}', target = self.go_thread, args = [ossia, mtc])
-            thread.start()
-
-    def go_thread(self, ossia, mtc):
-        # ARM NEXT TARGET
-        if self._target_object:
-            self._target_object.arm(self._conf, ossia, self._armed_list)
-
-        # PREWAIT
-        if self.prewait > 0:
-            sleep(self.prewait.milliseconds / 1000)
-
-        # PLAY WHATEVER A SIMPLE CUE WOULD PLAY
-
-        # POSTWAIT
-        if self.postwait > 0:
-            sleep(self.postwait.milliseconds / 1000)
-
-        # POST-GO GO
-        if self.post_go == 'go':
-            self._target_object.go(ossia, mtc)
-
-        if self in self._armed_list:
-            self.disarm(ossia.conf_queue)
-
-
-    def disarm(self, ossia_queue):
-        if self.loaded is True:
-            self.loaded = False
-
-            if self in self._armed_list:
-                self._armed_list.remove(self)
-
-            return True
-        else:
-            return False
-
-    def get_next_cue(self):
-        if self.target:
-            if self.post_go == 'pause':
-                return self._target_object
-            else:
-                return self._target_object.get_next_cue()
-        else:
-            return None
-
-    def check_mappings(self, mappings):
-        return True
-
-    def stop(self):
-        pass
diff --git a/src/cuems/CueList.py b/src/cuems/CueList.py
deleted file mode 100644
index 30eac92..0000000
--- a/src/cuems/CueList.py
+++ /dev/null
@@ -1,154 +0,0 @@
-import uuid as uuid_module
-from time import sleep
-from threading import Thread
-from .Cue import Cue
-from .CTimecode import CTimecode
-from .log import logger
-
-
-class CueList(Cue):
-    def __init__(self, init_dict = None):
-        super().__init__(init_dict)
-
-    @property    
-    def contents(self):
-        return super().__getitem__('contents')
-
-    @contents.setter
-    def contents(self, contents):
-        super().__setitem__('contents', contents)
-
-    @property
-    def uuid(self):
-        return super().__getitem__('uuid')
-    
-    def __add__(self, other):
-        new_contents = self['contents'].copy()
-        new_contents.append(other)
-        return new_contents
-
-    def __iadd__(self, other):
-        self['contents'].__iadd__(other)
-        return self
-
-    def times(self):
-        timelist = list()
-        for item in self['contents']:
-            timelist.append(item.offset)
-        return timelist
-
-    def find(self, uuid):
-        if self.uuid == uuid:
-            return self
-        else:
-            for item in self.contents:
-                if item.uuid == uuid:
-                    return item
-                elif isinstance(item, CueList):
-                    recursive = item.find(uuid)
-                    if recursive != None:
-                        return recursive
-            
-        return None
-
-    def get_media(self):
-        media_dict = dict()
-        for item in self.contents:
-            if isinstance(item, CueList):
-                media_dict.update( item.get_media() )
-            else:
-                try:
-                    if item.media:
-                        media_dict[item.uuid] = [item.media.file_name, item.__class__.__name__]
-                except KeyError:
-                        media_dict[item.uuid] = {'media' : None, 'type' : item.__class__.__name__}
-        
-        return media_dict
-
-    def arm(self, conf, ossia_queue, armed_list, init = False):
-        self.conf = conf
-        self.armed_list = armed_list
-
-        if self.enabled and self.loaded == init:
-            if not self in armed_list:
-                self.contents[0].arm(self.conf, ossia_queue, self.armed_list, init)
-
-                self.loaded = True
-
-                armed_list.append(self)
-
-            if self.post_go == 'go':
-                self._target_object.arm(self.conf, ossia_queue, self.armed_list, init)
-
-            return True
-        else:
-            return False
-
-    def go(self, ossia, mtc):
-        if not self.loaded:
-            logger.error(f'{self.__class__.__name__} {self.uuid} not loaded to go...')
-            raise Exception(f'{self.__class__.__name__} {self.uuid} not loaded to go')
-        else:
-            # THREADED GO
-            thread = Thread(name = f'GO:{self.__class__.__name__}:{self.uuid}', target = self.go_thread, args = [ossia, mtc])
-            thread.start()
-
-    def go_thread(self, ossia, mtc):
-        # ARM NEXT TARGET
-        if self._target_object:
-            self._target_object.arm(self.conf, ossia, self.armed_list)
-
-        # PREWAIT
-        if self.prewait > 0:
-            sleep(self.prewait.milliseconds / 1000)
-
-        # PLAY : specific go the first cue in the list
-        try:
-            if self.contents:
-                self.contents[0].go(ossia, mtc)
-        except Exception as e:
-            logger.exception(e)
-
-        # POSTWAIT
-        if self.postwait > 0:
-            sleep(self.postwait.milliseconds / 1000)
-
-        if self.post_go == 'go':
-            self._target_object.go(ossia, mtc)
-
-        '''
-        if self.post_go == 'go_at_end':
-            self._target_object.go(ossia, mtc)
-        '''
-
-        if self in self.armed_list:
-            self.disarm(ossia.conf_queue)
-
-    def disarm(self, ossia_queue):
-        try:
-            if self in self.armed_list:
-                self.armed_list.remove(self)
-        except:
-            pass
-        
-        self.loaded = False
-
-    def get_next_cue(self):
-        cue_to_return = None
-        if self.contents:
-            if self.contents[0].post_go == 'pause':
-                cue_to_return = self.contents[0]._target_object
-            else:
-                cue_to_return = self.contents[0].get_next_cue()
-            
-            if cue_to_return:
-                return cue_to_return       
-
-        if self.target:
-            if self.post_go == 'pause':
-                return self._target_object
-            else:
-                return self._target_object.get_next_cue()
-        else:
-            return None
-
diff --git a/src/cuems/CueOutput.py b/src/cuems/CueOutput.py
deleted file mode 100644
index 249794a..0000000
--- a/src/cuems/CueOutput.py
+++ /dev/null
@@ -1,15 +0,0 @@
-from .log import logger
-
-class CueOutput(dict):
-    def __init__(self, init_dict = None):
-        if init_dict:
-            super().__init__(init_dict)
-
-class AudioCueOutput(CueOutput):
-    pass
-
-class VideoCueOutput(CueOutput):
-    pass
-
-class DmxCueOutput(CueOutput):
-    pass
diff --git a/src/cuems/CueProcessor.py b/src/cuems/CueProcessor.py
deleted file mode 100755
index 1538f7e..0000000
--- a/src/cuems/CueProcessor.py
+++ /dev/null
@@ -1,38 +0,0 @@
-#!/usr/bin/env python3
-import threading
-import queue
-import time
-
-from .log import logger
-
-class CuePriorityQueue(queue.PriorityQueue):
-    def __init__(self):
-      super().__init__()
-
-    def clear(self):
-        while not self.empty():
-            logger.debug(str(self.get()) + "deleted")
-            self.task_done()
-
-class CueQueueProcessor(threading.Thread):
-    def __init__(self, queue):
-        self.queue = queue
-        self.item = None
-
-        super().__init__()
-        self.daemon = False
-
-        self.stop_processing = False
-        threading.Thread.start(self)
-
-    def run(self):
-        while not self.stop_processing:
-            self.item = self.queue.get(block=True, timeout=None)
-            logger.debug(f'Working on {self.item}')
-            logger.debug(f'Finished {self.item}')
-            self.queue.task_done()
-
-            time.sleep(0.01)
-
-    def stop(self):
-        self.stop_processing = True
diff --git a/src/cuems/CuemsEngine.py b/src/cuems/CuemsEngine.py
deleted file mode 100644
index 752aba1..0000000
--- a/src/cuems/CuemsEngine.py
+++ /dev/null
@@ -1,737 +0,0 @@
-#!/usr/bin/env python3
-
-# %%
-import threading
-import queue
-from multiprocessing import Queue as MPQueue
-from subprocess import CalledProcessError
-import signal
-import time
-import os
-import pyossia as ossia
-from uuid import uuid1
-from functools import partial
-
-from .CTimecode import CTimecode
-import xmlschema.exceptions
-
-from .cuems_editor.CuemsWsServer import CuemsWsServer
-
-from .MtcListener import MtcListener
-from .mtcmaster import libmtcmaster
-
-from .log import logger
-from .OssiaServer import OssiaServer, QueueData, QueueOSCData
-from .Settings import Settings
-from .CuemsScript import CuemsScript
-from .CueList import CueList
-from .Cue import Cue
-from .AudioCue import AudioCue
-from .VideoCue import VideoCue
-from .VideoPlayer import VideoPlayer
-from .DmxCue import DmxCue
-from .ActionCue import ActionCue
-# from .CueProcessor import CuePriorityQueue, CueQueueProcessor
-from .XmlReaderWriter import XmlReader
-from .ConfigManager import ConfigManager
-from .HWDiscovery import hw_discovery
-
-CUEMS_CONF_PATH = '/etc/cuems/'
-
-
-# %%
-class CuemsEngine():
-    def __init__(self):
-        logger.info('CUEMS ENGINE INITIALIZATION')
-        # Main thread ids
-        logger.info(f'Main thread PID: {os.getpid()}')
-
-        try:
-            logger.info(f'Hardware discovery launched...')
-            hw_discovery()
-        except Exception as e:
-            logger.exception(f'Exception: {e}')
-            exit(-1)
-
-        # Running flag
-        self.stop_requested = False
-
-        self._editor_request_uuid = None
-
-        #########################################################
-        # System signals handlers
-        signal.signal(signal.SIGINT, self.sigIntHandler)
-        signal.signal(signal.SIGTERM, self.sigTermHandler)
-        signal.signal(signal.SIGUSR1, self.sigUsr1Handler)
-        signal.signal(signal.SIGUSR2, self.sigUsr2Handler)
-        signal.signal(signal.SIGCHLD, self.sigChldHandler)
-
-        # Conf load manager
-        try:
-            self.cm = ConfigManager(path=CUEMS_CONF_PATH)
-        except FileNotFoundError:
-            logger.critical('Node config file could not be found. Exiting !!!!!')
-            exit(-1)
-
-        # Our empty script object
-        self.script = None
-        '''
-        CUE "POINTERS":
-        here we use the "standard" point of view that there is an
-        ongoing cue already running (one or many, at least the last to be gone)
-        and a pointer indicating which is the next to be gone when go is pressed
-        '''
-        self.ongoing_cue = None
-        self.next_cue_pointer = None
-        self.armedcues = list()
-
-        # MTC master object creation through bound library and open port
-        self.mtcmaster = libmtcmaster.MTCSender_create()
-        self.go_offset = 0
-
-        # MTC listener (could be usefull)
-        try:
-            self.mtclistener = MtcListener( port=self.cm.node_conf['mtc_port'], 
-                                            step_callback=partial(CuemsEngine.mtc_step_callback, self), 
-                                            reset_callback=partial(CuemsEngine.mtc_step_callback, self, CTimecode('0:0:0:0')))
-        except KeyError:
-            logger.error('mtc_port config could bot be properly loaded. Exiting.')
-            exit(-1)
-
-        # WebSocket server
-        settings_dict = {}
-        settings_dict['session_uuid'] = str(uuid1())
-        settings_dict['library_path'] = self.cm.library_path
-        settings_dict['tmp_upload_path'] = self.cm.tmp_upload_path
-        settings_dict['database_name'] = self.cm.database_name
-        settings_dict['load_timeout'] = self.cm.node_conf['load_timeout']
-        settings_dict['discovery_timeout'] = self.cm.node_conf['discovery_timeout']
-        self.engine_queue = MPQueue()
-        self.editor_queue = MPQueue()
-        self.ws_server = CuemsWsServer(self.engine_queue, self.editor_queue, settings_dict)
-        try:
-            self.ws_server.start(self.cm.node_conf['websocket_port'])
-        except KeyError:
-            self.stop_all_threads()
-            logger.exception('Config error, websocket_port key not found in settings. Exiting.')
-            exit(-1)
-        except Exception as e:
-            self.stop_all_threads()
-            logger.error('Exception when starting websocket server. Exiting.')
-            logger.exception(e)
-            exit(-1)    
-        else:
-            # Threaded own queue consumer loop
-            self.engine_queue_loop = threading.Thread(target=self.engine_queue_consumer, name='engineq_consumer')
-            self.engine_queue_loop.start()
-
-        # OSSIA OSCQuery server
-        self.ossia_queue = queue.Queue()
-        self.ossia_server = OssiaServer(self.cm.node_conf['id'], 
-                                        self.cm.node_conf['oscquery_port'], 
-                                        self.cm.node_conf['oscquery_out_port'], 
-                                        self.ossia_queue)
-
-        # Initial OSC nodes to tell ossia to configure
-        OSC_ENGINE_CONF = { '/engine' : [ossia.ValueType.Impulse, None],
-                            '/engine/command' : [ossia.ValueType.Impulse, None],
-                            '/engine/command/load' : [ossia.ValueType.String, self.load_project_callback],
-                            '/engine/command/loadcue' : [ossia.ValueType.String, self.load_cue_callback],
-                            '/engine/command/go' : [ossia.ValueType.Impulse, self.go_callback],
-                            '/engine/command/gocue' : [ossia.ValueType.String, self.go_cue_callback],
-                            '/engine/command/pause' : [ossia.ValueType.Impulse, self.pause_callback],
-                            '/engine/command/stop' : [ossia.ValueType.Impulse, self.stop_callback],
-                            '/engine/command/resetall' : [ossia.ValueType.Impulse, self.reset_all_callback],
-                            '/engine/command/preload' : [ossia.ValueType.String, self.load_cue_callback],
-                            '/engine/command/unload' : [ossia.ValueType.String, self.unload_cue_callback],
-                            '/engine/status/timecode' : [ossia.ValueType.Int, None], 
-                            '/engine/status/currentcue' : [ossia.ValueType.String, None],
-                            '/engine/status/nextcue' : [ossia.ValueType.String, None],
-                            '/engine/status/running' : [ossia.ValueType.Int, None]
-                            }
-
-        self.ossia_queue.put(QueueData('add', OSC_ENGINE_CONF))
-
-        # Check, start and OSC register video devices/players
-        self._video_players = {}
-        try:
-            self.check_video_devs()
-        except Exception as e:
-            logger.error(f'Error checking & starting video devices...')
-            logger.exception(e)
-            logger.error(f'Exiting...')
-            exit(-1)
-
-        # Everything is ready now and should be working, let's run!
-        while not self.stop_requested:
-            time.sleep(0.005)
-
-        self.stop_all_threads()
-
-    def engine_queue_consumer(self):
-        while not self.stop_requested:
-            if not self.engine_queue.empty():
-                item = self.engine_queue.get()
-                logger.debug(f'Received queue message from WS server: {item}')
-                self.editor_command_callback(item)
-            time.sleep(0.004)
-
-    def editor_command_callback(self, item):
-        try:
-            self._editor_request_uuid = item['action_uuid']
-        except KeyError:
-            self.editor_queue.put({"type":"error", "action":None, 'action_uuid':None, "value":"No action uuid submitted"})
-            return
-
-        try:
-            if not item['type'] in ['error', 'initial_settings']:
-                self.editor_queue.put({"type":"error", "action":None, 'action_uuid':self._editor_request_uuid, "value":"Response not recognized"})
-                self._editor_request_uuid = None
-        except KeyError:
-            try:
-                if not item['action'] in ['load_project', 'hw_discovery']:
-                    self.editor_queue.put({"type":"error", "action":None, 'action_uuid':self._editor_request_uuid, "value":"Command not recognized"})
-                    self._editor_request_uuid = None
-                else:
-                    if item['action'] == 'load_project':
-                        self._editor_request_uuid = item['action_uuid']
-                        logger.info(f'Load project command received via WS. project: {item["value"]} request: {self._editor_request_uuid}')
-                        self.load_project_callback(value = item['value'])
-                    elif item['action'] == 'hw_discovery':
-                        self._editor_request_uuid = item['action_uuid']
-                        logger.info(f'HW discovery command received via WS. project: {item["value"]} request: {self._editor_request_uuid}')
-                        try:
-                            hw_discovery()
-                        except:
-                            self.editor_queue.put({'type':'error', 'action':'hw_discovery', 'action_uuid':self._editor_request_uuid, 'value':'HW discovery failed, check logs.'})
-                            logger.error(f'HW discovery failed after ws request, request id: {self._editor_request_uuid}')
-                            self._editor_request_uuid = None
-                        else:
-                            self.editor_queue.put({'type':'hw_discovery', 'action_uuid':self._editor_request_uuid, 'value':'OK'})
-                            self._editor_request_uuid = None
-
-            except KeyError:
-                logger.exception(f'Not recognized communications with WSServer. Queue msg received: {item}')
-
-    #########################################################
-    # Check functions
-    def check_project_mappings(self):
-        if self.cm.default_mappings:
-            return True
-
-        if self.cm.project_maps['audio']:
-            if self.cm.project_maps['audio']['outputs']:
-                # TO DO : per channel assignment
-                for item in self.cm.project_maps['audio']['outputs']:
-                    for subitem in item:
-                        if subitem['name'] not in self.cm.node_outputs['audio_outputs']:
-                            raise Exception(f'Audio output mapping incorrect')
-
-            elif self.cm.project_maps['audio']['inputs']:
-                for item in self.cm.project_maps['audio']['inputs']:
-                    for subitem in item:
-                        if subitem['name'] not in self.cm.node_outputs['audio_inputs']:
-                            raise Exception(f'Audio input mapping incorrect')
-
-        if self.cm.project_maps['video']:
-            if self.cm.project_maps['video']['outputs']:
-                for item in self.cm.project_maps['video']['outputs']:
-                    for subitem in item:
-                        if subitem['name'] not in self.cm.node_outputs['video_outputs']:
-                            raise Exception(f'Video output mapping incorrect')
-
-            elif self.cm.project_maps['video']['inputs']:
-                for item in self.cm.project_maps['video']['inputs']:
-                    for subitem in item:
-                        if subitem['name'] not in self.cm.node_outputs['video_inputs']:
-                            raise Exception(f'Video input mapping incorrect')
-
-        if self.cm.project_maps['dmx']:
-            if self.cm.project_maps['dmx']['outputs']:
-                for item in self.cm.project_maps['dmx']['outputs']:
-                    for subitem in item:
-                        if subitem['name'] not in self.cm.node_outputs['dmx_outputs']:
-                            raise Exception(f'dmx output mapping incorrect')
-
-            elif self.cm.project_maps['dmx']['inputs']:
-                for item in self.cm.project_maps['dmx']['inputs']:
-                    for subitem in item:
-                        if subitem['name'] not in self.cm.node_outputs['dmx_inputs']:
-                            raise Exception(f'dmx input mapping incorrect')
-
-    def check_audio_devs(self):
-        pass
-
-    def check_video_devs(self):
-        try:
-            if self.cm.node_outputs['video_outputs']:
-                for index, item in enumerate(self.cm.node_outputs['video_outputs']):
-                    # Assign a videoplayer object
-                    port = self.cm.players_port_index['start']
-                    while port in self.cm.players_port_index['used']:
-                        port += 2
-
-                    player_id = item
-                    self._video_players[player_id] = dict()
-
-                    try:
-                        self._video_players[player_id]['player'] = VideoPlayer(  port, 
-                                                                            item,
-                                                                            self.cm.node_conf['videoplayer']['path'],
-                                                                            self.cm.node_conf['videoplayer']['args'],
-                                                                            '')
-                    except Exception as e:
-                        raise e
-
-                    self._video_players[player_id]['player'].start()
-
-                    # And dinamically attach it to the ossia for remote control it
-                    self._video_players[player_id]['route'] = f'/node{self.cm.node_conf["id"]:03}/videoplayer-{index}'
-
-                    OSC_VIDEOPLAYER_CONF = {    '/jadeo/xscale' : [ossia.ValueType.Float, None],
-                                                '/jadeo/yscale' : [ossia.ValueType.Float, None], 
-                                                '/jadeo/corners' : [ossia.ValueType.List, None],
-                                                '/jadeo/corner1' : [ossia.ValueType.List, None],
-                                                '/jadeo/corner2' : [ossia.ValueType.List, None],
-                                                '/jadeo/corner3' : [ossia.ValueType.List, None],
-                                                '/jadeo/corner4' : [ossia.ValueType.List, None],
-                                                '/jadeo/start' : [ossia.ValueType.Int, None],
-                                                '/jadeo/load' : [ossia.ValueType.String, None],
-                                                '/jadeo/cmd' : [ossia.ValueType.String, None],
-                                                '/jadeo/quit' : [ossia.ValueType.Int, None],
-                                                '/jadeo/offset' : [ossia.ValueType.String, None],
-                                                '/jadeo/offset.1' : [ossia.ValueType.Int, None],
-                                                '/jadeo/midi/connect' : [ossia.ValueType.String, None],
-                                                '/jadeo/midi/disconnect' : [ossia.ValueType.Int, None]
-                                                }
-
-                    self.cm.players_port_index['used'].append(port)
-
-                    self.ossia_queue.put(   QueueOSCData(   'add', 
-                                                            self._video_players[player_id]['route'], 
-                                                            self.cm.node_conf['osc_dest_host'], 
-                                                            port,
-                                                            port + 1, 
-                                                            OSC_VIDEOPLAYER_CONF))
-            else:
-                logger.info('No video outputs detected.')
-        except Exception as e:
-            logger.info('No video outputs detected.')
-
-    def quit_video_devs(self):
-        for dev in self._video_players.values():
-            key = f'{dev["route"]}/jadeo/cmd'
-            try:
-                self.ossia_server.osc_registered_nodes[key][0].parameter.value = 'quit'
-            except CalledProcessError:
-                pass
-
-    def disconnect_video_devs(self):
-        for dev in self._video_players.values():
-            try:
-                key = f'{dev["route"]}/jadeo/cmd'
-                self.ossia_server.osc_registered_nodes[key][0].parameter.value = 'midi disconnect'
-            except KeyError:
-                logger.debug(f'Key error (cmd midi disconnect) in disconnect all method {key}')
-
-    def check_dmx_devs(self):
-        pass
-
-    #########################################################
-    # Ordered stopping
-    def stop_all_threads(self):
-        self.mtclistener.stop()
-        self.mtclistener.join()
-
-        try:
-            libmtcmaster.MTCSender_stop(self.mtcmaster)
-            libmtcmaster.MTCSender_release(self.mtcmaster)
-            logger.info('MTC Master released')
-        except:
-            logger.exception('MTC Master could not be released')
-
-        self.quit_video_devs()
-
-        self.disarm_all()
-
-        self.stop_requested = True
-
-        self.cm.join()
-
-        try:
-            self.ws_server.stop()
-            logger.info(f'Ws-server thread finished')
-        except AttributeError:
-            logger.exception('Could not stop Ws-server')
-
-        try:
-            while not self.engine_queue.empty():
-                self.engine_queue.get()
-            self.engine_queue_loop.join()
-            self.engine_queue.close()
-
-            while not self.editor_queue.empty():
-                self.editor_queue.get()
-            self.editor_queue.close()
-            logger.debug('IPC queues clean and closed')
-        except:
-            logger.exception('Could not clean and close IPC queues')
-
-        try:
-            self.ossia_server.stop()
-            self.ossia_server.join()
-            logger.info(f'Ossia server thread finished')
-        except:
-            logger.exception('Could not stop Ossia server')
-
-    #########################################################
-    # Status check functions
-    def print_all_status(self):
-        logger.info('STATUS REQUEST BY SIGUSR2 SIGNAL')
-        if self.cm.is_alive():
-            logger.info(self.cm.getName() + ' is alive)')
-        else:
-            logger.info(self.cm.getName() + ' is not alive, trying to restore it')
-            self.cm.start()
-
-        '''
-        if self.ws_server.is_alive():
-            logger.info(self.ws_server.getName() + ' is alive')
-            try:
-                # os.kill(self.ws_pid, 0)
-            except OSError:
-                logger.info('\tws child process is NOT running')
-            else:
-                logger.info('\tws child process is running')
-        else:
-            logger.info(self.ws_server.getName() + ' is not alive, trying to restore it')
-            # self.ws_server.start()
-        '''
-
-        logger.info(f'MTC: {self.mtclistener.timecode()}')
-
-    #########################################################
-    # Usefull callbacks
-    def mtc_step_callback(self, mtc):
-        # self.timecode(value = str(mtc))
-        if self.go_offset:
-            self.ossia_server.oscquery_registered_nodes['/engine/status/timecode'][0].parameter.value = mtc.milliseconds - self.go_offset
-
-    ########################################################
-    # System signals handlers
-    def sigTermHandler(self, sigNum, frame):
-        try:
-            self.stop_all_threads()
-        except:
-            logger.exception('Exception when closing all threads')
-
-        time.sleep(0.1)
-        string = f'SIGTERM received! Exiting with result code: {sigNum}'
-        print('\n\n' + string + '\n\n')
-        logger.info(string)
-        exit()
-
-    def sigIntHandler(self, sigNum, frame):
-        try:
-            self.stop_all_threads()
-        except:
-            logger.exception('Exception when closing all threads')
-
-        time.sleep(0.1)
-        string = f'SIGINT received! Exiting with result code: {sigNum}'
-        print('\n\n' + string + '\n\n')
-        logger.info(string)
-        exit()
-
-    def sigChldHandler(self, sigNum, frame):
-        pass
-        # logger.info('Child process signal received, maybe from ws-server')
-        # wait_return = os.waitid(os.P_PID, self.ws_pid, os.WEXITED)
-        # logger.info(wait_return)
-        #if wait_return.si_code
-
-    def sigUsr1Handler(self, sigNum, frame):
-        string = 'RUNNING!'
-        print('[' + string + '] [OK]')
-        logger.info(string)
-
-    def sigUsr2Handler(self, sigNum, frame):
-        self.print_all_status()
-    ########################################################
-
-    ########################################################
-    # OSC messages handlers
-    def load_project_callback(self, **kwargs):
-        logger.info(f'OSC LOAD! -> PROJECT : {kwargs["value"]}')
-
-        if self.script:
-            libmtcmaster.MTCSender_stop(self.mtcmaster)
-            self.disarm_all()
-            self.armedcues.clear()
-            self.ongoing_cue = None
-            self.next_cue_pointer = None
-            self.go_offset = 0
-            self.script = None
-
-        try:
-            self.cm.load_project_settings(kwargs["value"])
-            # logger.info(self.cm.project_conf)
-        except FileNotFoundError:
-            logger.info(f'Project settings file not found. Adopting defaults.')
-        except:
-            logger.info(f'Project settings error while loading. Adopting defaults.')
-
-        try:
-            self.cm.load_project_mappings(kwargs["value"])
-            # logger.info(self.cm.project_maps)
-        except:
-            self.editor_queue.put({'type':'error', 'action':'load_project', 'action_uuid':self._editor_request_uuid, 'value':'Mapping files error while loading.'})
-            return
-
-        try:
-            self.check_project_mappings()
-        except Exception as e:
-            logger.error('Wrong configuration on input/output mappings')
-            self.editor_queue.put({'type':'error', 'action':'load_project', 'action_uuid':self._editor_request_uuid, 'value':'Wrong configuration on input/output mappings'})
-            return
-
-        try:
-            schema = os.path.join(self.cm.cuems_conf_path, 'script.xsd')
-            xml_file = os.path.join(self.cm.library_path, 'projects', kwargs['value'], 'script.xml')
-            reader = XmlReader( schema, xml_file )
-            self.script = reader.read_to_objects()
-        except FileNotFoundError:
-            logger.error('Project script file not found')
-            self.editor_queue.put({'type':'error', 'action':'load_project', 'action_uuid':self._editor_request_uuid, 'value':'Project script file not found'})
-            self._editor_request_uuid = None
-        except xmlschema.exceptions.XMLSchemaException as e:
-            logger.exception(f'XML error: {e}')
-            self.editor_queue.put({'type':'error', 'action':'load_project', 'action_uuid':self._editor_request_uuid, 'value':'Script XML parsing error'})
-            self._editor_request_uuid = None
-        except Exception as e:
-            logger.error(f'Project script could not be loaded {e}')
-            self.editor_queue.put({'type':'error', 'action':'load_project', 'action_uuid':self._editor_request_uuid, 'value':'Script could not be loaded'})
-            self._editor_request_uuid = None
-
-        if self.script is None:
-            logger.warning(f'Script could not be loaded. Check consistency and retry please.')
-            self.editor_queue.put({'type':'error', 'action':'load_project', 'action_uuid':self._editor_request_uuid, 'value':'Script could not be loaded'})
-            return
-
-        try:
-            self.script_media_check()
-        except FileNotFoundError:
-            logger.error(f'Script {kwargs["value"]} cannot be run, media not found!')
-            self.editor_queue.put({'type':'error', 'action':'load_project', 'action_uuid':self._editor_request_uuid, 'value':'Media not found'})
-            self.script = None
-            return
-
-        try:
-            self.initial_cuelist_process(self.script.cuelist)
-        except:
-            logger.error(f"Error processing script data. Can't be loaded.")
-            self.editor_queue.put({'type':'error', 'action':'load_project', 'action_uuid':self._editor_request_uuid, 'value':"Error processing script data. Can't be loaded."})
-            self.script = None
-            return
-
-        # Then we force-arm the first item in the main list
-        self.script.cuelist.contents[0].arm(self.cm, self.ossia_server, self.armedcues)
-        # And get it ready to wait a GO command
-        self.next_cue_pointer = self.script.cuelist.contents[0]
-        self.ossia_server.oscquery_registered_nodes['/engine/status/nextcue'][0].parameter.value = self.next_cue_pointer.uuid
-
-        # Start MTC!
-        libmtcmaster.MTCSender_play(self.mtcmaster)
-
-        # Everything went OK we notify it to the WS server through the queue
-        self.editor_queue.put({'type':'load_project', 'action_uuid':self._editor_request_uuid, 'value':'OK'})
-        self._editor_request_uuid = None
-
-    def load_cue_callback(self, **kwargs):
-        logger.info(f'OSC LOAD! -> CUE : {kwargs["value"]}')
-
-        cue_to_load = self.script.find(kwargs['value'])
-
-        if cue_to_load != None:
-            if cue_to_load not in self.armedcues:
-                cue_to_load.arm(self.cm, self.ossia_server, self.armedcues)
-
-    def unload_cue_callback(self, **kwargs):
-        logger.info(f'OSC UNLOAD! -> CUE : {kwargs["value"]}')
-
-        cue_to_unload = self.script.find(kwargs['value'])
-
-        if cue_to_unload != None:
-            if cue_to_unload in self.armedcues:
-                cue_to_unload.disarm(self.ossia_queue)
-
-    def go_cue_callback(self, **kwargs):
-        cue_to_go = self.script.find(kwargs['value'])
-
-        if cue_to_go is None:
-            logger.error(f'Cue {kwargs["value"]} does not exist.')
-        else:
-            if cue_to_go not in self.armedcues:
-                logger.error(f'Cue {kwargs["value"]} not prepared. Prepare it first.')
-            else:
-                logger.info(f'Cue {kwargs["value"]} in armedcues list. Ready!')
-                logger.info(f'OSC GO! -> CUE : {cue_to_go.uuid}')
-
-                cue_to_go.go(self.ossia_server, self.mtclistener)
-
-                self.ongoing_cue = cue_to_go
-                logger.info(f'Current Cue: {self.ongoing_cue}')
-
-    def go_callback(self, **kwargs):
-        if self.script:
-            if not self.ongoing_cue:
-                cue_to_go = self.script.cuelist.contents[0]
-            else:
-                if self.next_cue_pointer:
-                    cue_to_go = self.next_cue_pointer
-                else:
-                    logger.info(f'Reached end of scrip. Last cue was {self.ongoing_cue.__class__.__name__} {self.ongoing_cue.uuid}')
-                    self.ongoing_cue = None
-                    self.go_offset = 0
-                    self.script.cuelist.contents[0].arm(self.cm, self.ossia_server, self.armedcues)
-                    return
-
-            if cue_to_go not in self.armedcues:
-                logger.error(f'Trying to go a cue that is not yet loaded. CUE : {cue_to_go.uuid}')
-            else:
-                self.ongoing_cue = cue_to_go
-                self.ongoing_cue.go(self.ossia_server, self.mtclistener)
-                self.next_cue_pointer = self.ongoing_cue.get_next_cue()
-                self.go_offset = self.mtclistener.main_tc.milliseconds
-
-                # OSC Query cues status notification
-                self.ossia_server.oscquery_registered_nodes['/engine/status/currentcue'][0].parameter.value = self.ongoing_cue.uuid
-                if self.next_cue_pointer:
-                    self.ossia_server.oscquery_registered_nodes['/engine/status/nextcue'][0].parameter.value = self.next_cue_pointer.uuid
-                else:
-                    self.ossia_server.oscquery_registered_nodes['/engine/status/nextcue'][0].parameter.value = ""
-
-                self.ossia_server.oscquery_registered_nodes['/engine/status/running'][0].parameter.value = 1
-        else:
-            logger.warning('No script loaded, cannot process GO command.')
-
-    def pause_callback(self, **kwargs):
-        logger.info('OSC PAUSE!')
-        try:
-            libmtcmaster.MTCSender_pause(self.mtcmaster)
-            self.ossia_server.oscquery_registered_nodes['/engine/status/running'][0].parameter.value = int(not self.ossia_server.oscquery_registered_nodes['/engine/status/running'][0].parameter.value)
-        except:
-            logger.info('NO MTCMASTER ASSIGNED!')
-
-    def stop_callback(self, **kwargs):
-        logger.info('OSC STOP!')
-        try:
-            libmtcmaster.MTCSender_stop(self.mtcmaster)
-            self.go_offset = 0
-            self.ossia_server.oscquery_registered_nodes['/engine/status/running'][0].parameter.value = 0
-        except:
-            logger.info('NO MTCMASTER ASSIGNED!')
-
-    def reset_all_callback(self, **kwargs):
-        logger.info('OSC RESETALL!')
-        try:
-            libmtcmaster.MTCSender_stop(self.mtcmaster)
-            self.disarm_all()
-            self.armedcues.clear()
-            self.disconnect_video_devs()
-            self.ongoing_cue = None
-            self.go_offset = 0
-
-            self.ossia_server.oscquery_registered_nodes['/engine/status/running'][0].parameter.value = 0
-
-            if self.script:
-                self.script.cuelist.contents[0].arm(self.cm, self.ossia_server, self.armedcues)
-                self.next_cue_pointer = self.script.cuelist.contents[0]
-                self.ossia_server.oscquery_registered_nodes['/engine/status/nextcue'][0].parameter.value = self.next_cue_pointer.uuid
-
-                self.ossia_server.oscquery_registered_nodes['/engine/status/currentcue'][0].parameter.value = ""
-                self.ossia_server.oscquery_registered_nodes['/engine/status/nextcue'][0].parameter.value = self.script.cuelist.contents[0].uuid
-            libmtcmaster.MTCSender_play(self.mtcmaster)
-
-        except Exception as e:
-            logger.exception(e)
-
-    ########################################################
-
-    ########################################################
-    # Script treating methods
-    def script_media_check(self):
-        '''
-        Checks for all the media files referred in the script.
-        Returns the list of those which were not found in the media library.
-        '''
-        media_list = self.script.get_media()
-
-        for key, value in media_list.copy().items():
-            if os.path.isfile(os.path.join(self.cm.library_path, 'media', key)):
-                media_list.pop(key)
-
-        if media_list:
-            string = f'These media files could not be found:'
-            for key, value in media_list.items():
-                string += f'\n{value[1]} : {key} : {value[0]}'
-            logger.error(string)
-            self.editor_queue.put({'type':'error', 'action':'load_project', 'action_uuid':self._editor_request_uuid, 'subtype':'media', 'data':media_list})
-            self._editor_request_uuid = None
-
-            raise FileNotFoundError
-        
-    def initial_cuelist_process(self, cuelist, caller = None):
-        ''' 
-        Review all the items recursively to update target uuids and objects
-        and to load all the "loaded" flagged
-        '''
-        try:
-            for index, item in enumerate(cuelist.contents):
-                if item.check_mappings(self.cm):
-                    if isinstance(item, VideoCue):
-                        try:
-                            for output in item.outputs:
-                                # TO DO : add support for multiple outputs
-                                video_player_id = self.cm.get_video_player_id(output['output_name'])
-                                item._player = self._video_players[video_player_id]['player']
-                                item._osc_route = self._video_players[video_player_id]['route']
-                        except Exception as e:
-                            logger.exception(e)
-                            raise e
-                else:
-                    raise Exception(f"Cue outputs badly assigned in cue : {item.uuid}")
-
-                if item.loaded and not item in self.armedcues:
-                    item.arm(self.cm, self.ossia_server, self.armedcues, init = True)
-
-                if item.target is None or item.target == "":
-                    if (index + 1) == len(cuelist.contents):
-                        '''
-                        If the item is the last in the cuelist we leave the
-                        target fields as None
-                        '''
-                        item.target = None
-                        item._target_object = None
-                    else:
-                        item.target = cuelist.contents[index + 1].uuid
-                        item._target_object = cuelist.contents[index + 1]
-                else:
-                    item._target_object = self.script.find(item.target)
-
-                if isinstance(item, CueList):
-                    self.initial_cuelist_process(item, cuelist)
-                elif isinstance(item, ActionCue):
-                    item._action_target_object = self.script.find(item.action_target)
-
-        except Exception as e:
-            logger.error(f'Error arming cuelist : {cuelist.uuid} : {e}')
-            raise
-            
-    def disarm_all(self):
-        for item in self.armedcues:
-            item.stop()
-            item.disarm(self.ossia_queue)
-
-
-    ########################################################
diff --git a/src/cuems/CuemsScript.py b/src/cuems/CuemsScript.py
deleted file mode 100644
index 5363874..0000000
--- a/src/cuems/CuemsScript.py
+++ /dev/null
@@ -1,103 +0,0 @@
-from .log import logger
-from .CueList import CueList
-import uuid as uuid_module
-from .cuems_editor.CuemsUtils import date_now_iso_utc
-
-class CuemsScript(dict):
-    def __init__(self, init_dict = None):
-        if init_dict:
-            super().__init__(init_dict)       
-
-    @property
-    def uuid(self):
-        return super().__getitem__('uuid')
-
-    @uuid.setter
-    def uuid(self, uuid):
-        super().__setitem__('uuid', uuid)
-
-    @property
-    def unix_name(self):
-        return super().__getitem__('unix_name')
-
-    @unix_name.setter
-    def unix_name(self, unix_name):
-        super().__setitem__('unix_name', unix_name)
-
-    @property
-    def name(self):
-        return super().__getitem__('name')
-
-    @name.setter
-    def name(self, name):
-        super().__setitem__('name', name)
-
-    @property
-    def description(self):
-        return super().__getitem__('description')
-
-    @description.setter
-    def description(self, description):
-        super().__setitem__('description', description)
-
-    @property
-    def created(self):
-        return super().__getitem__('created')
-
-    @created.setter
-    def created(self, created):
-        super().__setitem__('created', created)
-
-    @property
-    def modified(self):
-        return super().__getitem__('modified')
-
-    @modified.setter
-    def modified(self, modified):
-        super().__setitem__('modified', modified)
-
-    @property
-    def cuelist(self):
-        return super().__getitem__('cuelist')
-
-    @cuelist.setter
-    def cuelist(self, cuelist):
-        if isinstance(cuelist, CueList):
-            super().__setitem__('cuelist', cuelist)
-        else:
-            raise NotImplementedError
-
-    # returns a dict of UNIQUE media (no duplicates)
-
-    def get_media(self):
-        media_dict = dict()
-        if (self.cuelist is not None) and (self.cuelist.contents is not None):
-            
-            for cue in self.cuelist.contents:
-                try:
-                    if cue.media is not None:
-                        if type(cue)==CueList:
-                            media_dict.update(self.get_cuelist_media(cue))
-                        else:
-                            media_dict[cue.media.file_name] = type(cue)
-                except KeyError:
-                    logger.debug("cue with no media")
-        return media_dict
-
-    def get_cuelist_media(self, cuelist):
-        media_dict = dict()
-        if (cuelist is not None) and (cuelist.contents is not None):
-            for cue in cuelist.contents:
-                try:
-                    if cue.media is not None:
-                        if type(cue)==CueList:
-                            media_dict.update(self.get_cuelist_media(cue))
-                        else:
-                            media_dict[cue.media.file_name] = type(cue)
-                except KeyError:
-                    logger.debug("cue with no media")
-        return media_dict
-
-
-    def find(self, uuid):
-        return self.cuelist.find(uuid)
diff --git a/src/cuems/DictParser.py b/src/cuems/DictParser.py
deleted file mode 100644
index 811545b..0000000
--- a/src/cuems/DictParser.py
+++ /dev/null
@@ -1,243 +0,0 @@
-import distutils.util
-
-from .CuemsScript import CuemsScript
-from .CueList import CueList
-from .Cue import Cue
-from .Media import Media, region
-from .UI_properties import UI_properties
-from .CueOutput import CueOutput, AudioCueOutput, VideoCueOutput, DmxCueOutput
-from .AudioCue import AudioCue
-from .VideoCue import VideoCue
-from .ActionCue import ActionCue
-from .DmxCue import DmxCue, DmxScene, DmxUniverse, DmxChannel
-from .ActionCue import ActionCue
-from .CTimecode import CTimecode
-from .log import logger
-
-PARSER_SUFFIX = 'Parser'
-GENERIC_PARSER = 'GenericParser'
-
-class GenericDict(dict):
-    pass
-
-class CuemsParser():
-    def __init__(self, init_dict):
-        self.init_dict=init_dict
-
-    def get_parser_class(self, class_string):
-        parser_name = class_string + PARSER_SUFFIX
-        try:
-            parser_class = (globals()[parser_name], class_string)
-        except KeyError as err:
-            # logger.debug("Could not find class {0}, reverting to generic parser class".format(err))
-            parser_class = (globals()[GENERIC_PARSER], class_string)
-        return parser_class
-
-    def get_class(self, class_string):
-        
-        try:
-            _class = globals()[class_string]
-        except KeyError as err:
-            # logger.debug("Could not find class {0}".format(err))
-            _class = GenericDict
-        return _class
-
-    def get_first_key(self, _dict):
-        return list(_dict.keys())[0]
-
-
-    def get_contained_dict(self, _dict):
-        return list(_dict.values())[0]
-
-    def convert_string_to_value(self, _string):
-        bool_strings = ['true', 'false']
-        null_strings = ['none', 'null']
-        if isinstance(_string, str):
-            if (_string.lower() in bool_strings):
-                return bool(distutils.util.strtobool(_string.lower()))
-            elif (_string.lower() in null_strings):
-                return None
-            elif (_string.isdigit()):
-                return int(_string)
-            else:
-                try:
-                    return float(_string)
-                except ValueError:
-                    return _string
-        else:
-            return _string
-
-    def parse(self):
-        parser_class, class_string = self.get_parser_class(self.get_first_key(self.init_dict))
-        item_obj = parser_class(init_dict=self.get_contained_dict(self.init_dict), class_string=class_string).parse()
-        return item_obj
-
-class CuemsScriptParser(CuemsParser):
-    def __init__(self, init_dict, class_string):
-        self.init_dict = init_dict
-        self.class_string = class_string
-        self._class = self.get_class(class_string)
-        self.item_csp = self._class()
-    
-    def parse(self):
-        for dict_key, dict_value in self.init_dict.items():
-            if type(dict_value) is dict:
-                if (len(list(dict_value))> 0):
-                    parser_class, class_string = self.get_parser_class(dict_key)
-                    self.item_csp[dict_key.lower()] = parser_class(init_dict=dict_value, class_string=class_string).parse()
-                    
-            else:
-                dict_value = self.convert_string_to_value(dict_value)
-                self.item_csp[dict_key] = dict_value
-                
-        return self.item_csp
-
-class CueListParser(CuemsScriptParser):
-    def __init__(self, init_dict, class_string):
-        self.init_dict = init_dict
-        self.class_string = class_string
-        self._class = self.get_class(class_string)
-        self.item_clp = self._class()
-        
-    def parse(self):
-        for dict_key, dict_value in self.init_dict.items():
-            if isinstance(dict_value, list):
-                local_list = []
-                for cue in dict_value:
-                    parser_class, unused_class_string = self.get_parser_class(self.get_first_key(cue))
-                    item_obj = parser_class(init_dict=self.get_contained_dict(cue), class_string=self.get_first_key(cue)).parse()
-                    local_list.append(item_obj)
-
-                self.item_clp['contents'] = local_list
-            elif isinstance(dict_value, dict):
-                key_parser_class, key_class_string = self.get_parser_class(dict_key)
-                if key_parser_class == GenericParser:
-                    value_parser_class, value_class_string = self.get_parser_class(self.get_first_key(dict_value))
-                
-                if value_parser_class == GenericParser:
-                    self.item_clp[dict_key] = key_parser_class(init_dict=dict_value, class_string=key_class_string).parse()
-                else:
-                    self.item_clp[dict_key] = value_parser_class(init_dict=dict_value, class_string=value_class_string).parse()
-
-            else:
-                dict_value = self.convert_string_to_value(dict_value)
-                self.item_clp[dict_key] = dict_value
-                
-        return self.item_clp
-
-class GenericParser(CuemsScriptParser): 
-    def __init__(self, init_dict, class_string):
-        self.init_dict = init_dict
-        self.class_string = class_string
-        self._class = self.get_class(class_string)
-        self.item_gp = self._class()
-        
-    def parse(self):
-        if self._class == GenericDict:
-            self.item_gp = self.init_dict
-
-        elif isinstance(self.init_dict, dict):
-            for dict_key, dict_value in self.init_dict.items():
-                if isinstance (dict_value, dict):
-                    key_parser_class, key_class_string = self.get_parser_class(dict_key)
-                    if key_parser_class == GenericParser:
-                        value_parser_class, value_class_string = self.get_parser_class(self.get_first_key(dict_value))
-
-                    if value_parser_class == GenericParser:
-                        self.item_gp[dict_key] = key_parser_class(init_dict=dict_value, class_string=key_class_string).parse()
-                    else:
-                        self.item_gp[dict_key] = value_parser_class(init_dict=dict_value, class_string=value_class_string).parse()
-                elif isinstance(dict_value, list):
-                    local_list = []
-                    parser_class, class_string = self.get_parser_class(dict_key)
-                    for list_item in dict_value:
-
-                        item_obj = parser_class(init_dict=list_item, class_string=class_string).parse()
-                        local_list.append(item_obj)
-                    self.item_gp[dict_key] = local_list
-                else:
-                    dict_value = self.convert_string_to_value(dict_value)
-                    self.item_gp[dict_key] = dict_value
-
-        return self.item_gp
-
-class DmxSceneParser(GenericParser):
-    pass
-
-    def parse(self):
-        for class_string, class_item_list in self.init_dict.items():   
-            for class_item in class_item_list:
-                parser_class, class_string = self.get_parser_class(class_string)
-                item_obj = parser_class(init_dict=class_item, class_string=class_string).parse()
-                self.item_gp.set_universe(item_obj, class_item['id'])
-        return self.item_gp
-
-class DmxUniverseParser(GenericParser):
-
-    def parse(self):
-        for class_string, class_item_list in self.init_dict.items():
-            if class_string != 'id':
-                for class_item in class_item_list:
-                    parser_class, class_string = self.get_parser_class(class_string)
-                    item_obj = parser_class(init_dict=class_item, class_string=class_string).parse()
-                    self.item_gp.set_channel(class_item['id'], item_obj)
-        return self.item_gp
-
-class DmxChannelParser(GenericParser):
-
-    def parse(self):
-        self.item_gp.value = self.init_dict['&']
-        return self.item_gp
-
-class GenericSubObjectParser(GenericParser):
-    
-    def parse(self):
-        self.item_gp = self._class(self.init_dict)
-        return self.item_gp
-
-class CTimecodeParser(GenericSubObjectParser):  
-
-    def parse(self):
-        self.item_gp = self.init_dict
-        return self.item_gp
-
-
-class OutputsParser(GenericParser):
-    def __init__(self, init_dict, class_string, parent_class=None):
-        self.init_dict = init_dict
-
-    def parse(self):
-        for dict_key, dict_value in self.init_dict.items():
-            self._class = self.get_class(dict_key)
-            self.item_op = self._class(dict_value)
-
-        return self.item_op
-
-class regionsParser(GenericParser):
-    def __init__(self, init_dict, class_string, parent_class=None):
-        self.init_dict = init_dict
-        self.class_string = class_string
-        self._class = self.get_class(class_string)
-        self.item_rp = self._class()
-        
-    def parse(self):
-        for dict_key, dict_value in self.init_dict.items():
-            key_parser_class, key_class_string = self.get_parser_class(dict_key)
-            self.item_rp = key_parser_class(init_dict=dict_value, class_string=key_class_string).parse()
-
-        return self.item_rp
-
-class AudioCueOutputParser(OutputsParser):
-    pass
-
-class VideoCueOutputParser(OutputsParser):
-    pass
-class DmxCueOutputParser(OutputsParser):
-    pass
-
-class NoneTypeParser():
-    def __init__(self, init_dict, class_string):
-        pass
-
-    def parse(self):
-        return None
diff --git a/src/cuems/DmxCue.py b/src/cuems/DmxCue.py
deleted file mode 100644
index 2714cbc..0000000
--- a/src/cuems/DmxCue.py
+++ /dev/null
@@ -1,285 +0,0 @@
-from threading import Thread
-from time import sleep
-
-from collections.abc import Mapping
-from os import path
-from pyossia import ossia
-from .Cue import Cue
-from .DmxPlayer import DmxPlayer
-from .OssiaServer import QueueOSCData
-from .log import logger
-
-#### TODO: asegurar asignacion de escenas a cue, no copia!!
-
-class DmxCue(Cue):
-    OSC_DMXPLAYER_CONF = {  '/quit' : [ossia.ValueType.Impulse, None],
-                            '/load' : [ossia.ValueType.String, None], 
-                            '/wait' : [ossia.ValueType.Float, None],
-                            '/play' : [ossia.ValueType.Impulse, None],
-                            '/stop' : [ossia.ValueType.Impulse, None],
-                            '/stoponlost' : [ossia.ValueType.Bool, None],
-                            # TODO '/mtcfollow' : [ossia.ValueType.Bool, None],
-                            '/check' : [ossia.ValueType.Impulse, None]
-                            }
-
-    def __init__(self, init_dict = None):
-        super().__init__(init_dict)
-            
-        self._player = None
-        self._osc_route = None
-        self._offset_route = '/offset'
-
-        self.OSC_DMXPLAYER_CONF[self._offset_route] = [ossia.ValueType.Float, None]
-        
-
-    @property
-    def media(self):
-        return super().__getitem__('Media')
-
-    @media.setter
-    def media(self, media):
-        super().__setitem__('Media', media)
-
-    @property
-    def fadein_time(self):
-        return super().__getitem__('fadein_time')
-
-    @fadein_time.setter
-    def fadein_time(self, fadein_time):
-        super().__setitem__('fadein_time', fadein_time)
-
-    @property
-    def fadeout_time(self):
-        return super().__getitem__('fadeout_time')
-
-    @fadeout_time.setter
-    def fadeout_time(self, fadeout_time):
-        super().__setitem__('fadeout_time', fadeout_time)
-
-    def player(self, player):
-        self._player = player
-
-    def osc_route(self, osc_route):
-        self._osc_route = osc_route
-
-    def offset_route(self, offset_route):
-        self._offset_route = offset_route
-
-    def review_offset(self, timecode):
-        return -(float(timecode.milliseconds))
-
-    def arm(self, conf, ossia, armed_list, init = False):
-        self._conf = conf
-        self._armed_list = armed_list
-
-        if not self.enabled:
-            if self.loaded and self in self._armed_list:
-                    self.disarm(ossia.conf_queue)
-            return False
-        elif self.loaded and not init:
-            if not self in self._armed_list:
-                self._armed_list.append(self)
-            return True
-
-        # Assign its own audioplayer object
-        try:
-            self._player = DmxPlayer(   self._conf.players_port_index, 
-                                        self._conf.node_conf['dmxplayer']['path'],
-                                        str(self._conf.node_conf['dmxplayer']['args']),
-                                        str(path.join(self._conf.library_path, 'media', self.media['file_name'])))
-        except Exception as e:
-            raise e
-
-        self._player.start()
-
-        # And dinamically attach it to the ossia for remote control it
-        self._osc_route = f'/node{self._conf.node_conf["id"]:03}/dmxplayer-{self.uuid}'
-
-        ossia.conf_queue.put(   QueueOSCData(  'add', 
-                                    self._osc_route, 
-                                    self._conf.node_conf['osc_dest_host'], 
-                                    self._player.port,
-                                    self._player.port + 1, 
-                                    self.OSC_DMXPLAYER_CONF))
-
-        self.loaded = True
-        if not self in self._armed_list:
-            self._armed_list.append(self)
-
-        if self.post_go == 'go' and self._target_object:
-            self._target_object.arm(self._conf, ossia, self._armed_list, init)
-
-        return True
-
-    def go(self, ossia, mtc):
-        if not self.loaded:
-            logger.error(f'{self.__class__.__name__} {self.uuid} not loaded to go...')
-            raise Exception(f'{self.__class__.__name__} {self.uuid} not loaded to go')
-        else:
-            # THREADED GO
-            thread = Thread(name = f'GO:{self.__class__.__name__}:{self.uuid}', target = self.go_thread, args = [ossia, mtc])
-            thread.start()
-
-    def go_thread(self, ossia, mtc):
-        # ARM NEXT TARGET
-        if self._target_object:
-            self._target_object.arm(self._conf, ossia, self._armed_list)
-
-        # PREWAIT
-        if self.prewait > 0:
-            sleep(self.prewait.milliseconds / 1000)
-
-        # PLAY : specific DMX cue stuff
-        try:
-            key = f'{self._osc_route}{self._offset_route}'
-            ossia.osc_registered_nodes[key][0].parameter.value = self.review_offset(mtc)
-            logger.info(key + " " + str(ossia.osc_registered_nodes[key][0].parameter.value))
-        except KeyError:
-            logger.debug(f'OSC key error 1 in go_callback {key}')
-
-        try:
-            key = f'{self._osc_route}/mtcfollow'
-            ossia.osc_registered_nodes[key][0].parameter.value = True
-        except KeyError:
-            logger.debug(f'OSC key error 2 in go_callback {key}')
-
-        # POSTWAIT
-        if self.postwait > 0:
-            sleep(self.postwait.milliseconds / 1000)
-
-        # POST-GO GO
-        if self.post_go == 'go' and self._target_object:
-            self._target_object.go(ossia, mtc)
-
-        try:
-            while self._player.is_alive():
-                sleep(0.05)
-        except AttributeError:
-            return
-        
-        if self in self._armed_list:
-            self.disarm(ossia.conf_queue)
-
-    def disarm(self, ossia_queue):
-        if self.loaded is True:
-            try:
-                self._player.kill()
-                self._conf.players_port_index['used'].remove(self._player.port)
-                self._player.join()
-                self._player = None
-
-                ossia_queue.put(QueueOSCData(   'remove', 
-                                                self._osc_route, 
-                                                dictionary = self.OSC_DMXPLAYER_CONF))
-
-            except Exception as e:
-                logger.warning(f'Could not properly unload {self.__class__.__name__} {self.uuid} : {e}')
-
-            try:
-                if self in self._armed_list:
-                    self._armed_list.remove(self)
-            except:
-                pass
-            
-            self.loaded = False
-
-            return True
-        else:
-            return False
-
-    @property
-    def scene(self):
-        return self['dmx_scene']
-
-    @scene.setter
-    def scene(self, scene):
-        if isinstance(scene, DmxScene):
-            super().__setitem__('dmx_scene', scene)
-        elif isinstance(scene, dict):
-            super().__setitem__('dmx_scene', DmxScene(init_dict=scene))
-        else:
-            raise NotImplementedError
-
-class DmxScene(dict):
-    def __init__(self, init_dict=None):
-        super().__init__()
-        if init_dict:
-            for k, v, in init_dict.items():
-                if isinstance(k, int):
-                    super().__setitem__(k, DmxUniverse(v))
-                elif k == 'DmxUniverse':
-                    for u in v:
-                        super().__setitem__(u['id'], DmxUniverse(init_dict=u))
-
-    def universe(self, num=None):
-        if num is not None:
-            return super().__getitem__(num)
-
-    def universes(self):
-        return self
-      
-    def set_universe(self, universe, num=0):
-        super().__setitem__(num, DmxUniverse(universe))
-
-       
-
-        #merge two universes, priority on the newcoming
-    def merge_universe(self, universe, num=0):
-        super().__getitem__(num).update(universe)
-
-
-
-class DmxUniverse(dict):
-
-    def __init__(self, init_dict=None):
-        super().__init__()
-        if init_dict:
-            for k, v, in init_dict.items():
-                if isinstance(k, int):
-                    super().__setitem__(k, DmxChannel(v))
-                elif k == 'DmxChannel':
-                    for u in v:
-                        super().__setitem__(u['id'], DmxChannel(u['&']))
-    
-
-
-    def channel(self, channel):
-        return super().__getitem__(channel)
-
-    def set_channel(self, channel, value):
-        if isinstance(value, DmxChannel):
-            super().__setitem__(channel, value)
-        else:
-            super().__setitem__(channel, DmxChannel(value))
-        return self
-
-    def setall(self, value):
-        for channel in range(512):
-            super().__setitem__(channel, value)
-        return self      #TODO: valorate return self to be able to do things like 'universe_full = DmxUniverse().setall(255)'
-
-    def update(self, other=None, **kwargs):
-        if other is not None:
-            for k, v in other.items() if isinstance(other, Mapping) else other:
-                self[k] = DmxChannel(v)
-        for k, v in kwargs.items():
-            self[k] = DmxChannel(v)
-
-class DmxChannel():
-    def __init__(self, value=None, init_dict = None):
-        self._value = value
-        if init_dict is not None:
-            self.value = init_dict
-
-    def __repr__(self):
-        return str(self.value)
-
-    @property
-    def value(self):
-        return self._value
-    
-    @value.setter
-    def value (self, value):
-        if value > 255:
-            value = 255
-        self._value = value
diff --git a/src/cuems/DmxPlayer.py b/src/cuems/DmxPlayer.py
deleted file mode 100644
index c78aaa3..0000000
--- a/src/cuems/DmxPlayer.py
+++ /dev/null
@@ -1,68 +0,0 @@
-import subprocess
-from threading import Thread
-import os
-import pyossia as ossia
-
-from .log import logger
-
-import time
-
-
-class DmxPlayer(Thread):
-    def __init__(self, port_index, path, args, media):
-        self.port = port_index['start']
-        while self.port in port_index['used']:
-            self.port += 2
-
-        port_index['used'].append(self.port)
-            
-        self.stdout = None
-        self.stderr = None
-        # self.card_id = card_id
-        self.firstrun = True
-        self.path = path
-        self.args = args
-        self.media = media
-        
-        
-    def __init_trhead(self):
-        super().__init__()
-        self.daemon = True
-
-    def run(self):
-        if __debug__:
-            logger.info(f'DmxPlayer starting for {self.media}')
-           
-        try:
-            # Calling audioplayer-cuems in a subprocess
-            process_call_list = [self.path]
-            if self.args is not None:
-                for arg in self.args.split():
-                    process_call_list.append(arg)
-            process_call_list.extend(['--port', str(self.port), self.media])
-            self.p=subprocess.Popen(process_call_list, shell=False, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
-            self.stdout, self.stderr = self.p.communicate()
-        except OSError as e:
-            logger.warning(f'Failed to start DmxPlayer for {self.media}')
-            if __debug__:
-                logger.debug(e)
-
-        if __debug__:
-            logger.debug(self.stdout)
-            logger.debug(self.stderr)
-    
-    def kill(self):
-        self.p.kill()
-        self.started = False
-    def start(self):
-        if self.firstrun:
-            self.__init_trhead()
-            Thread.start(self)
-            self.firstrun = False
-        else:
-            if not self.is_alive():
-                self.__init_trhead()
-                Thread.start(self)
-            else:
-                logger.debug("AudioPlayer allready running")
-
diff --git a/src/cuems/HWDiscovery.py b/src/cuems/HWDiscovery.py
deleted file mode 100644
index 05d5296..0000000
--- a/src/cuems/HWDiscovery.py
+++ /dev/null
@@ -1,77 +0,0 @@
-from subprocess import Popen, PIPE, STDOUT, CalledProcessError
-from jack import Client
-from pprint import pprint
-from .CuemsScript import CuemsScript
-from .XmlReaderWriter import XmlWriter
-from .log import logger
-from Xlib import display
-from Xlib.ext import xinerama
-
-def hw_discovery():
-    # Calling audioplayer-cuems in a subprocess
-    class Outputs(dict):
-        pass
-
-    outputs_object = Outputs()
-    outputs_object['audio'] = {}
-    outputs_object['video'] = {'outputs':{'output':[]}, 'default_output':''}
-    outputs_object['dmx'] = {}
-
-    # Audio outputs
-    jc = Client('CuemsHWDiscovery')
-    ports = jc.get_ports(is_audio=True, is_physical=True, is_input=True)
-    if ports:
-        outputs_object['audio']['outputs'] = {'output':[]}
-        outputs_object['audio']['default_output'] = ''
-
-        for port in ports:
-            outputs_object['audio']['outputs']['output'].append({'name':port.name, 'mappings':{'mapped_to':[port.name, ]}})
-
-        outputs_object['audio']['default_output'] = outputs_object['audio']['outputs']['output'][0]['name']
-
-    # Audio inputs
-    ports = jc.get_ports(is_audio=True, is_physical=True, is_output=True)
-    if ports:
-        outputs_object['audio']['inputs'] = {'input':[]}
-        outputs_object['audio']['default_input'] = ''
-
-        for port in ports:
-            outputs_object['audio']['inputs']['input'].append({'name':port.name, 'mappings':{'mapped_to':[port.name, ]}})
-
-        outputs_object['audio']['default_input'] = outputs_object['audio']['inputs']['input'][0]['name']
-
-    jc.close()
-
-    # Video
-    try:
-        # Xlib video outputs retreival through xinerama extension
-        disp = display.Display()
-        screen = disp.screen()
-        window = screen.root.create_window(0, 0, 1, 1, 1, screen.root_depth)
-
-        qs = xinerama.query_screens(window)
-        if qs._data['number'] > 0:
-            for index, screen in enumerate(qs._data['screens']):
-                outputs_object['video']['outputs']['output'].append({'name':f'{index}', 'mappings':{'mapped_to':[f'{index}', ]}})
-
-    except Exception as e:
-        logger.exception(e)
-        outputs_object['video']['outputs'] = {'output':[]}
-
-    if outputs_object['video']['outputs']['output']:
-        outputs_object['video']['default_output'] = outputs_object['video']['outputs']['output'][0]['name']
-    else:
-        outputs_object['video']['default_output'] = ''
-
-    # XML Writer
-    writer = XmlWriter(schema = '/etc/cuems/project_mappings.xsd', xmlfile = '/etc/cuems/default_mappings.xml', xml_root_tag='CuemsProjectMappings')
-
-    try:
-        writer.write_from_object(outputs_object)
-    except Exception as e:
-        logger.exception(e)
-
-    logger.info(f'Hardware discovery completed. Default mappings writen to {writer.xmlfile}')
-
-    return False
-
diff --git a/src/cuems/Media.py b/src/cuems/Media.py
deleted file mode 100644
index 531e245..0000000
--- a/src/cuems/Media.py
+++ /dev/null
@@ -1,87 +0,0 @@
-from .CTimecode import CTimecode
-
-class Media(dict):
-    def __init__(self, init_dict = None):
-        if init_dict:
-            super().__init__(init_dict)
-    
-    @property
-    def file_name(self):
-        return super().__getitem__('file_name')
-
-    @file_name.setter
-    def file_name(self, file_name):
-        super().__setitem__('file_name', file_name)
-
-    @property
-    def regions(self):
-        return super().__getitem__('regions')
-
-    @regions.setter
-    def regions(self, regions):
-        super().__setitem__('regions', regions)
-
-class region(dict):
-    def __init__(self, init_dict=None):
-        empty_keys= {"id": "0"}
-        if (init_dict):
-            super().__init__(init_dict)
-        else:
-            super().__init__(empty_keys)
-    
-    @property
-    def id(self):
-        return super().__getitem__('id')
-
-    @id.setter
-    def id(self, id):
-        super().__setitem__('id', id)
-
-    @property
-    def loop(self):
-        return super().__getitem__('loop')
-
-    @loop.setter
-    def loop(self, loop):
-        super().__setitem__('loop', loop)
-
-    @property
-    def in_time(self):
-        return super().__getitem__('in_time')
-
-    @in_time.setter
-    def in_time(self, in_time):
-        super().__setitem__('in_time', in_time)
-
-    @property
-    def out_time(self):
-        return super().__getitem__('out_time')
-
-    @out_time.setter
-    def out_time(self, out_time):
-        super().__setitem__('out_time', out_time)
-
-    def __setitem__(self, key, value):
-        if (key in ['in_time', 'out_time']) and (value not in (None, "")):
-            if isinstance(value, CTimecode):
-                ctime_value = value
-            else:
-                if isinstance(value, (int, float)):
-                    ctime_value = CTimecode(start_seconds = value)
-                    ctime_value.frames = ctime_value.frames + 1
-                elif isinstance(value, str):
-                    ctime_value = CTimecode(value)
-                elif isinstance(value, dict):
-                    dict_timecode = value.pop('CTimecode', None)
-                    if dict_timecode is None:
-                        ctime_value = CTimecode()
-                    elif isinstance(dict_timecode, int):
-                        ctime_value = CTimecode(start_seconds = dict_timecode)
-                    else:
-                        ctime_value = CTimecode(dict_timecode)
-
-            super().__setitem__(key, ctime_value)
-
-        else:
-            super().__setitem__(key, value)
-
diff --git a/src/cuems/MtcListener.py b/src/cuems/MtcListener.py
deleted file mode 100755
index aece08b..0000000
--- a/src/cuems/MtcListener.py
+++ /dev/null
@@ -1,121 +0,0 @@
-#!/usr/bin/env python3
-
-import mido
-
-import threading
-import queue
-from functools import partial
-import time
-
-# some_file.py
-
-from .CTimecode import CTimecode
-from .log import logger
-
-class MtcListener(threading.Thread):
-    def __init__(self, step_callback=None, reset_callback=None, port=None):
-        # self.main_tc = CTimecode('0:0:0:0')
-        self.main_tc = CTimecode()
-        self.main_tc.set_fractional(True)
-
-        self.__quarter_frames = [0,0,0,0,0,0,0,0]
-        self.port_name = None
-        self.__open_port(port)
-
-        self.step_callback = step_callback
-        self.reset_callback = reset_callback
-        super().__init__(name = 'mtclistener')
-        self.daemon = True
-        self.start()
-
-
-    def timecode(self):
-        return self.main_tc
-
-    def milliseconds(self):
-        return int(self.main_tc.frames * (1000 / float(self.main_tc._framerate)))
-
-    def __update_timecode(self, timecode):
-        self.main_tc = timecode
-        if (self.main_tc.milliseconds == 0):
-            if self.step_callback != None:
-                self.reset_callback()
-        if self.step_callback != None:
-            self.step_callback(self.main_tc) 
-
-    def __open_port(self, port):
-        if port == None:
-            ports = mido.get_input_names() # pylint: disable=maybe-no-member
-            mtc_ports = [s for s in ports if "mtc" in s.lower()]
-            self.port_name = mtc_ports[-1] if mtc_ports else ports[-1]
-            #logger.info ('Listener MIDI port: ' + self.port_name)
-        else:
-            self.port_name = port
-            # print("hay port")
-
-    def run(self):
-        self.port = mido.open_input(self.port_name, callback= self.__handle_message) # pylint: disable=maybe-no-member
-
-        logger.info('Listening to MIDI messages on > {} <'.format(self.port_name))
-
-    def stop(self):
-        self.port.close()
-
-    def __handle_message(self, message):
-        if message.type == 'quarter_frame':
-            
-            self.__quarter_frames[message.frame_type] = message.frame_value
-            if (message.frame_type == 3) or (message.frame_type == 7):
-                self.__update_timecode(self.main_tc + 1)
-            #    print('QF+:',self.main_tc)
-            if message.frame_type == 7:
-                tc = self.__mtc_decode_quarter_frames(self.__quarter_frames)
-            #    print('QFC:',tc)
-                self.__update_timecode(tc)
-        elif message.type == 'sysex':
-        # check to see if this is a timecode frame
-            if len(message.data) == 8 and message.data[0:4] == (127,127,1,1):
-                data = message.data[4:]
-                tc = self.__mtc_decode(data)
-                logger.debug('FF:' + tc.__str__())
-                self.__update_timecode(tc)
-            
-
-        else:
-            logger.debug(message)
-            raise(NotImplementedError)
-    
-    def __mtc_decode(self, mtc_bytes):
-        #print(mtc_bytes)
-        rhh, mins, secs, frs = mtc_bytes
-        rateflag = rhh >> 5
-        hrs      = rhh & 31
-        fps = ['24','25','29.97','30'][rateflag]
-        # total_frames = frs + float(fps) * (secs + mins * 60 + hrs * 60 * 60) //  TODO: goes to frame 0 in tc, non existent frame, changed to tc 0:0:0:0 = frame 1
-        return CTimecode('{}:{}:{}:{}'.format(hrs, mins, secs, frs), framerate=fps)
-
-
-
-    def __mtc_decode_full_frame(self, full_frame_bytes):
-        mtc_bytes = full_frame_bytes[5:-1]
-        return self.__mtc_decode(mtc_bytes)
-
-
-    def __mtc_decode_quarter_frames(self, frame_pieces):
-        mtc_bytes = bytearray(4)
-        if len(frame_pieces) < 8:
-            return None
-        for piece in range(8):
-            mtc_index = 3 - piece//2    # quarter frame pieces are in reverse order of mtc_encode
-            this_frame = frame_pieces[piece]
-            if this_frame is bytearray or this_frame is list:
-                this_frame = this_frame[1]
-            data = this_frame & 15      # ignore the frame_piece marker bits
-            if piece % 2 == 0:
-                # 'even' pieces came from the low nibble
-                # and the first piece is 0, so it's even
-                mtc_bytes[mtc_index] += data
-            else:
-                # 'odd' pieces came from the high nibble
-                mtc_bytes[mtc_index] += data * 16
-        return self.__mtc_decode(mtc_bytes)
diff --git a/src/cuems/MtcListener_test.py b/src/cuems/MtcListener_test.py
deleted file mode 100755
index 13a29a8..0000000
--- a/src/cuems/MtcListener_test.py
+++ /dev/null
@@ -1,60 +0,0 @@
-#!/usr/bin/env python3
-
-import click
-
-from log import *
-
-from functools import partial
-from Cue import Cue
-from CueList import CueList
-from CueProcessor import CuePriorityQueu, CueQueueProcessor
-from MtcListener import MtcListener
-
-
-
-
-
-
-#%%
-def check_cues(timecode, queue, timelist):
-    if ((timelist) and (timelist[0].time <= timecode)):
-        last = timelist.pop(0)
-        logger.debug('event')
-        logger.debug(last)
-        queue.put((2, last), block=True, timeout=None)
-
-
-
-def reset_all(queue, list):
-    queue.clear()
-
-
-
-@click.command()
-@click.option('--port', '-p', help='name of MIDI port to connect to')
-
-def main(port):
-
-
-    
-
-    c1 = Cue('0:0:5:0')
-    c2 = Cue('0:0:6:0')
-    c3 = Cue('0:0:7:0')
-    c4 = Cue('0:0:10:0')
-    c5 = Cue(time=None)
-    c6 = Cue(time=None)
-    c7 = Cue(time=None)
-    time_list = CueList([c1, c3, c4, c2, c5, c6, c7])
-
-    
-
-    cue_queue = CuePriorityQueu()
-    cue_processor = CueQueueProcessor(cue_queue)
-    mtc_listener = MtcListener(step_callback=partial(check_cues, queue=cue_queue, timelist=time_list), reset_callback=partial(reset_all, queue=cue_queue, list=time_list), port=port)
-
-
-
-main() # pylint: disable=no-value-for-parameter
-
-# %%
\ No newline at end of file
diff --git a/src/cuems/OssiaServer.py b/src/cuems/OssiaServer.py
deleted file mode 100644
index 5e12e23..0000000
--- a/src/cuems/OssiaServer.py
+++ /dev/null
@@ -1,147 +0,0 @@
-#import pyossia as ossia
-import pyossia as ossia
-import time
-import threading
-
-#from VideoPlayer import NodeVideoPlayers
-#from AudioPlayer import NodeAudioPlayers
-from .log import logger
-
-class OssiaServer(threading.Thread):
-    def __init__(self, node_id, in_port, out_port, queue):
-        super().__init__(target=self.threaded_loop, name='OSCQueryLoop')
-        self.server_running = True
-
-        self.conf_queue = queue
-        # Main thread queue attendant loop
-        self.conf_queue_loop = threading.Thread(target=self.conf_queue_consumer, name='mtqueueconsumer')
-        self.conf_queue_loop.start()
-
-        # OSC nodes dicts
-        # for the oscquery connection
-        self.oscquery_registered_nodes = dict()
-        # and for the dinamically registered osc devices
-        self.osc_devices = dict()
-        self.osc_registered_nodes = dict()
-
-        # Ossia Device and OSCQuery server creation
-        self.oscquery_device = ossia.LocalDevice(f'node_{node_id:03}_oscquery')
-        self.oscquery_device.create_oscquery_server(    in_port, 
-                                                        out_port, 
-                                                        False)
-        logger.info(f'OscQuery device listening on port {in_port}')
-
-        # OSC messages queue
-        self.oscquery_messageq = ossia.MessageQueue(self.oscquery_device)
-
-        self.start()
-
-    def stop(self):
-        self.server_running = False
-        while not self.conf_queue.empty():
-            self.conf_queue.get()
-        self.conf_queue_loop.join()
-        
-    def threaded_loop(self):
-        while self.server_running:
-            oscq_message = self.oscquery_messageq.pop()
-            while (oscq_message != None):
-                parameter, value = oscq_message
-                try:
-                    if self.oscquery_registered_nodes[str(parameter.node)][1] is not None:
-                        self.oscquery_registered_nodes[str(parameter.node)][1](value=value)
-                except KeyError:
-                    logger.info(f'OSC has no {str(parameter.node)} node')
-
-                try:
-                    if str(parameter.node) in self.osc_registered_nodes:
-                        self.osc_registered_nodes[str(parameter.node)][0].parameter.value = value
-                except KeyError:
-                    logger.info(f'OSC device has no {str(parameter.node)} node')
-                except SystemError:
-                    pass
-
-                oscq_message = self.oscquery_messageq.pop()
-            
-            time.sleep(0.001)
-
-    def conf_queue_consumer(self):
-        while self.server_running:
-            if not self.conf_queue.empty():
-                item = self.conf_queue.get()
-                if item.action == 'add':
-                    self.add_nodes(item)
-                elif item.action == 'remove':
-                    self.remove_nodes(item)
-                self.conf_queue.task_done()
-            time.sleep(0.004)
-
-    def add_nodes(self, qdata):
-        if isinstance(qdata, QueueOSCData):
-            self.osc_devices[qdata.device_name] = ossia.ossia.OSCDevice(
-                                                        f'remoteAudioPlayer{qdata.device_name}', 
-                                                        qdata.host, 
-                                                        qdata.in_port, 
-                                                        qdata.out_port)
-
-            for route, conf in qdata.items():
-                temp_node = self.osc_devices[qdata.device_name].add_node(route)
-                # conf[0] holds the OSC type of data
-                temp_node.create_parameter(conf[0])
-                temp_node.parameter.access_mode = ossia.AccessMode.Bi
-                temp_node.parameter.repetition_filter = ossia.ossia_python.RepetitionFilter.On
-
-
-                # conf[1] holds the method to call when received such a route
-                self.osc_registered_nodes[qdata.device_name + route] = [temp_node, conf[1]]
-
-            ############ Register also the node on the oscquery device tree
-            for route, conf in qdata.items():
-                temp_node = self.oscquery_device.add_node(qdata.device_name + route)
-                temp_node.create_parameter(conf[0])
-                temp_node.parameter.access_mode = ossia.AccessMode.Bi
-                temp_node.parameter.repetition_filter = ossia.ossia_python.RepetitionFilter.On
-                self.oscquery_messageq.register(temp_node.parameter)
-                
-                self.oscquery_registered_nodes[qdata.device_name + route] = [temp_node, conf[1]]
-
-            # logger.info(f'OSC Nodes listening on {qdata.in_port}: {self.osc_registered_nodes[qdata.device_name + route]}')
-        elif isinstance(qdata, QueueData):
-            for route, conf in qdata.items():
-                temp_node = self.oscquery_device.add_node(route)
-                temp_node.create_parameter(conf[0])
-                temp_node.parameter.access_mode = ossia.AccessMode.Bi
-                temp_node.parameter.repetition_filter = ossia.ossia_python.RepetitionFilter.On
-                self.oscquery_messageq.register(temp_node.parameter)
-                
-                self.oscquery_registered_nodes[route] = [temp_node, conf[1]]
-
-            # logger.info(f'OSCQuery Nodes registered: {qdata}')
-
-    def remove_nodes(self, qdata):
-        if isinstance(qdata, QueueOSCData):
-            self.osc_devices.pop(qdata.device_name)
-            for route, _ in qdata.items():
-                self.osc_registered_nodes.pop(qdata.device_name + route)
-            for route, _ in qdata.items():
-                self.oscquery_registered_nodes.pop(qdata.device_name + route)
-
-        elif isinstance(qdata, QueueData):
-            for route, _ in qdata.items():
-                try:
-                    self.oscquery_registered_nodes.pop(route)
-                except:
-                    pass
-
-class QueueData(dict):
-    def __init__(self, action, dictionary):
-        self.action = action
-        super().__init__(dictionary)
-
-class QueueOSCData(QueueData):
-    def __init__(self, action, device_name, host = '', in_port = 0, out_port = 0, dictionary = {}):
-        self.device_name = device_name
-        self.host = host
-        self.in_port = in_port
-        self.out_port = out_port
-        super().__init__(action, dictionary)
\ No newline at end of file
diff --git a/src/cuems/UI_properties.py b/src/cuems/UI_properties.py
deleted file mode 100644
index a32f08f..0000000
--- a/src/cuems/UI_properties.py
+++ /dev/null
@@ -1,9 +0,0 @@
-class UI_properties(dict):
-    
-    def __init__(self, init_dict = None):
-        if init_dict:
-            super().__init__(init_dict)
-    
-    @property
-    def timeline_position(self):
-        return super().__getitem__('timeline_position')
\ No newline at end of file
diff --git a/src/cuems/VideoCue.py b/src/cuems/VideoCue.py
deleted file mode 100644
index e0a4036..0000000
--- a/src/cuems/VideoCue.py
+++ /dev/null
@@ -1,240 +0,0 @@
-from os import path
-from pyossia import ossia
-from threading import Thread
-from time import sleep
-
-from .Cue import Cue
-from .CTimecode import CTimecode
-from .VideoPlayer import VideoPlayer
-from .OssiaServer import QueueOSCData
-from .log import logger
-class VideoCue(Cue):
-    '''
-    OSC_VIDEOPLAYER_CONF = {'/jadeo/xscale' : [ossia.ValueType.Float, None],
-                            '/jadeo/yscale' : [ossia.ValueType.Float, None], 
-                            '/jadeo/corners' : [ossia.ValueType.List, None],
-                            '/jadeo/corner1' : [ossia.ValueType.List, None],
-                            '/jadeo/corner2' : [ossia.ValueType.List, None],
-                            '/jadeo/corner3' : [ossia.ValueType.List, None],
-                            '/jadeo/corner4' : [ossia.ValueType.List, None],
-                            '/jadeo/start' : [ossia.ValueType.Bool, None],
-                            '/jadeo/load' : [ossia.ValueType.String, None],
-                            '/jadeo/quit' : [ossia.ValueType.Bool, None],
-                            '/jadeo/midi/connect' : [ossia.ValueType.String, None],
-                            '/jadeo/midi/disconnect' : [ossia.ValueType.Impulse, None]
-                            }
-    '''
-
-    def __init__(self, init_dict = None):
-        super().__init__(init_dict)
-            
-        self._player = None
-        self._osc_route = None
-        self._go_thread = None
-
-        # TODO: Adjust framerates for universal use, by now 25 fps for video
-        self._start_mtc = CTimecode(framerate=25)
-        self._end_mtc = CTimecode(framerate=25)
-
-        '''
-        self.OSC_VIDEOPLAYER_CONF['/jadeo/offset'] = [ossia.ValueType.String, None]
-        self.OSC_VIDEOPLAYER_CONF['/jadeo/offset'] = [ossia.ValueType.Int, None]
-        '''
-
-    @property
-    def media(self):
-        return super().__getitem__('Media')
-
-    @media.setter
-    def media(self, media):
-        super().__setitem__('Media', media)
-
-    @property
-    def outputs(self):
-        return super().__getitem__('Outputs')
-
-    @outputs.setter
-    def outputs(self, outputs):
-        super().__setitem__('Outputs', outputs)
-
-    def player(self, player):
-        self._player = player
-
-    def osc_route(self, osc_route):
-        self._osc_route = osc_route
-
-    def arm(self, conf, ossia, armed_list, init = False):
-        self._conf = conf
-        self._armed_list = armed_list
-
-        if not self.enabled:
-            if self.loaded and self in self._armed_list:
-                    self.disarm(ossia.conf_queue)
-            return False
-        elif self.loaded and not init:
-            if not self in self._armed_list:
-                self._armed_list.append(self)
-            return True
-
-        try:
-            key = f'{self._osc_route}/jadeo/cmd'
-            ossia.oscquery_registered_nodes[key][0].parameter.value = 'midi disconnect'
-            logger.info(key + " " + str(ossia.oscquery_registered_nodes[key][0].parameter.value))
-        except KeyError:
-            logger.debug(f'Key error 1 (disconnect) in arm_callback {key}')
-
-        try:
-            key = f'{self._osc_route}/jadeo/load'
-            ossia.oscquery_registered_nodes[key][0].parameter.value = str(path.join(self._conf.library_path, 'media', self.media.file_name))
-            logger.info(key + " " + str(ossia.oscquery_registered_nodes[key][0].parameter.value))
-        except KeyError:
-            logger.debug(f'Key error 2 (load) in arm_callback {key}')
-
-        self.loaded = True
-        if not self in self._armed_list:
-            self._armed_list.append(self)
-
-        if self.post_go == 'go' and self._target_object:
-            self._target_object.arm(self._conf, ossia, self._armed_list, init)
-
-        return True
-
-    def go(self, ossia, mtc):
-        if not self.loaded:
-            logger.error(f'{self.__class__.__name__} {self.uuid} not loaded to go...')
-            raise Exception(f'{self.__class__.__name__} {self.uuid} not loaded to go')
-        else:
-            # THREADED GO
-            self._go_thread = Thread(name = f'GO:{self.__class__.__name__}:{self.uuid}', target = self.go_thread_func, args = [ossia, mtc])
-            self._go_thread.start()
-
-    def go_thread_func(self, ossia, mtc):
-        # ARM NEXT TARGET
-        if self._target_object:
-            self._target_object.arm(self._conf, ossia, self._armed_list)
-
-        # PREWAIT
-        if self.prewait > 0:
-            sleep(self.prewait.milliseconds / 1000)
-
-        # PLAY : specific video cue stuff
-        try:
-            key = f'{self._osc_route}/jadeo/offset'
-            self._start_mtc = mtc.main_tc
-            duration = self.media.regions[0].out_time - self.media.regions[0].in_time
-            duration = duration.return_in_other_framerate(mtc.main_tc.framerate)
-            self._end_mtc = self._start_mtc + duration
-            cue_in_time_fr_adjusted = self.media.regions[0].in_time.return_in_other_framerate(mtc.main_tc.framerate)
-            offset_to_go = cue_in_time_fr_adjusted.frame_number - self._start_mtc.frame_number
-            ossia.oscquery_registered_nodes[key][0].parameter.value = offset_to_go
-            logger.info(key + " " + str(ossia.oscquery_registered_nodes[key][0].parameter.value))
-        except KeyError:
-            logger.debug(f'Key error 1 (offset) in go_callback {key}')
-
-        try:
-            key = f'{self._osc_route}/jadeo/cmd'
-            ossia.oscquery_registered_nodes[key][0].parameter.value = "midi connect Midi Through"
-        except KeyError:
-            logger.debug(f'Key error 2 (connect) in go_callback {key}')
-
-        # POSTWAIT
-        if self.postwait > 0:
-            sleep(self.postwait.milliseconds / 1000)
-
-        if self.post_go == 'go' and self._target_object:
-            self._target_object.go(ossia, mtc)
-
-        try:
-            loop_counter = 0
-            duration = self.media.regions[0].out_time - self.media.regions[0].in_time
-            duration = duration.return_in_other_framerate(mtc.main_tc.framerate)
-            in_time_adjusted = self.media.regions[0].in_time.return_in_other_framerate(mtc.main_tc.framerate)
-
-            while not self.media.regions[0].loop or loop_counter < self.media.regions[0].loop:
-                while mtc.main_tc.milliseconds < self._end_mtc.milliseconds:
-                    sleep(0.005)
-
-                try:
-                    key = f'{self._osc_route}/jadeo/offset'
-                    self._start_mtc = mtc.main_tc
-                    self._end_mtc = self._start_mtc + duration
-                    offset_to_go = in_time_adjusted.frame_number - self._start_mtc.frame_number
-                    ossia.oscquery_registered_nodes[key][0].parameter.value = offset_to_go
-                    logger.info(key + " " + str(ossia.oscquery_registered_nodes[key][0].parameter.value))
-                except KeyError:
-                    logger.debug(f'Key error 1 (offset) in go_callback {key}')
-
-                loop_counter += 1
-
-            try:
-                key = f'{self._osc_route}/jadeo/cmd'
-                ossia.oscquery_registered_nodes[key][0].parameter.value = 'midi disconnect'
-                logger.info(key + " " + str(ossia.oscquery_registered_nodes[key][0].parameter.value))
-            except KeyError:
-                logger.debug(f'Key error 1 (disconnect) in arm_callback {key}')
-
-        except AttributeError:
-            pass
-        if self in self._armed_list:
-            self.disarm(ossia.conf_queue)
-
-    def disarm(self, ossia_queue):
-        if self.loaded is True:
-            '''
-            # Needed when each cue launched its own player
-            try:
-                self._player.kill()
-                self._conf.players_port_index['used'].remove(self._player.port)
-                self._player.join()
-                self._player = None
-
-                ossia_queue.put(QueueOSCData(   'remove', 
-                                                self._osc_route, 
-                                                dictionary = self.OSC_VIDEOPLAYER_CONF))
-
-            except Exception as e:
-                logger.warning(f'Could not properly unload {self.__class__.__name__} {self.uuid} : {e}')
-            '''
-
-            try:
-                if self in self._armed_list:
-                    self._armed_list.remove(self)
-            except:
-                pass
-            
-            self.loaded = False
-
-            return True
-        else:
-            return False
-
-    def stop(self):
-        self._stop_requested = True
-
-    def check_mappings(self, settings):
-        if settings.project_maps:
-            found = False
-            for output in self.outputs:
-                if output['output_name'] == 'default':
-                    found = True
-                    break
-                try:
-                    out_list = settings.project_maps['video']['outputs']
-                except:
-                    found = False
-                else:
-                    for each_out in out_list:
-                        for each_map in each_out[0]['mappings']:
-                            if output['output_name'] == each_map['mapped_to']:
-                                found = True
-                                break
-
-            if not found:
-                return False 
-        else:
-            for output in self.outputs:
-                if output['output_name'] != 'default':
-                    output['output_name'] = 'default'
-
-        return True
-
diff --git a/src/cuems/VideoPlayer.py b/src/cuems/VideoPlayer.py
deleted file mode 100644
index 7800867..0000000
--- a/src/cuems/VideoPlayer.py
+++ /dev/null
@@ -1,131 +0,0 @@
-from subprocess import Popen, PIPE, STDOUT, CalledProcessError
-from threading import Thread
-import os
-from sys import stdout, stderr
-import pyossia as ossia
-
-from .log import logger
-
-import time
-
-
-class VideoPlayer(Thread):
-    def __init__(self, port, output, path, args, media):
-        super().__init__()
-        self._port = port
-        self.output = output
-        self.path = path
-        self.args = args
-        self.media = media
-
-        self.firstrun = True
-        self.stdout = None
-        self.stderr = None
-        
-    '''
-    def __init_trhead(self):
-        super().__init__()
-        self.daemon = True
-    '''
-
-    def run(self):
-        if __debug__:
-            logger.info(f'VideoPlayer starting on display : {self.output}.')
-           
-        try:
-            # Calling xjadeo in a subprocess
-            process_call_list = [self.path]
-            if self.args:
-                for arg in self.args.split():
-                    process_call_list.append(arg)
-            process_call_list.extend(['--osc', str(self._port), '--start-screen', self.output, self.media])
-            # self.p = Popen(process_call_list, shell=False, stdout=PIPE, stderr=PIPE)
-            # self.stdout, self.stderr = self.p.communicate()
-
-            self.p = Popen(process_call_list, stdout=PIPE, stderr=STDOUT)
-            stdout_lines_iterator = iter(self.p.stdout.readline, b'')
-            while self.p.poll() is None:
-                for line in stdout_lines_iterator:
-                    logger.info(line)
-        except OSError as e:
-            logger.info(f'Failed to start VideoPlayer on display : {self.output}.')
-            logger.exception(e)
-        except CalledProcessError as e:
-            if self.p.returncode < 0:
-                raise CalledProcessError(self.p.returncode, self.p.args)
-
-
-    def kill(self):
-        self.p.kill()
-        self.started = False
-
-    def start(self):
-        if self.firstrun:
-            '''
-            self.__init_trhead()
-            Thread.start(self)
-            '''
-            super().start()
-            self.firstrun = False
-        else:
-            if self.is_alive():
-                logger.debug("VideoPlayer allready running")
-            else:
-                '''
-                self.__init_trhead()
-                Thread.start(self)
-                '''
-                super().start()
-
-    def port(self):
-        return self._port
-
-'''
-class VideoPlayerRemote():
-    def __init__(self, port, monitor_id, path, args, media):
-        self.port = port
-        self.monitor_id = monitor_id
-        self.videoplayer = VideoPlayer(self.port, self.monitor_id, path, args, media)
-        self.__start_remote()
-
-    def __start_remote(self):
-        self.remote_osc_xjadeo = ossia.ossia.OSCDevice("remoteXjadeo{}".format(self.monitor_id), "127.0.0.1", self.port, self.port+1)
-
-        self.remote_xjadeo_quit_node = self.remote_osc_xjadeo.add_node("/jadeo/quit")
-        self.xjadeo_quit_parameter = self.remote_xjadeo_quit_node.create_parameter(ossia.ValueType.Impulse)
-
-        self.remote_xjadeo_seek_node = self.remote_osc_xjadeo.add_node("/jadeo/seek")
-        self.xjadeo_seek_parameter = self.remote_xjadeo_seek_node.create_parameter(ossia.ValueType.Int)
-
-        self.remote_xjadeo_load_node = self.remote_osc_xjadeo.add_node("/jadeo/load")
-        self.xjadeo_load_parameter = self.remote_xjadeo_load_node.create_parameter(ossia.ValueType.String)
-
-    def start(self):
-        self.videoplayer.start()
-
-    def kill(self):
-        self.videoplayer.kill()
-
-    def load(self, load_path):
-        self.xjadeo_load_parameter.value = load_path
-
-    def seek(self, frame):
-        self.xjadeo_seek_parameter.value = frame
-
-    def quit(self):
-
-        self.xjadeo_quit_parameter.value = True
-
-class NodeVideoPlayers():
-
-    def __init__(self, videoplayer_settings):
-        self.vplayer=[None]*videoplayer_settings["outputs"]
-        for i, v in enumerate(self.vplayer):
-            self.vplayer[i] = VideoPlayerRemote(videoplayer_settings["instance"][i]["osc_in_port"], i, videoplayer_settings["path"])
-    
-    def __getitem__(self, subscript):
-        return self.vplayer[subscript]
-
-    def len(self):
-        return len(self.vplayer)
-'''
\ No newline at end of file
diff --git a/src/cuems/XmlBuilder.py b/src/cuems/XmlBuilder.py
deleted file mode 100644
index ca4a69a..0000000
--- a/src/cuems/XmlBuilder.py
+++ /dev/null
@@ -1,292 +0,0 @@
-import xml.etree.ElementTree as ET
-
-from .log import logger
-from .DictParser import GenericDict
-
-
-PARSER_SUFFIX = 'XmlBuilder'
-GENERIC_BUILDER = 'GenericCueXmlBuilder'
-
-SCHEMA_INSTANCE_URI = 'http://www.w3.org/2001/XMLSchema-instance'
-
-
-class XmlBuilder():
-    def __init__(self, _object, namespace, xsd_path, xml_tree = None, xml_root_tag='CuemsProject'):
-        self._object = _object
-        self.xml_tree = xml_tree
-        self.xml_root_tag = xml_root_tag
-        self.class_name = type(_object).__name__
-        self.xsd_path = xsd_path
-        self.namespace =  namespace
-        ET.register_namespace(next(iter(self.namespace)), next(iter(self.namespace.values())))
-
-    def get_builder_class(self, _object):
-        object_class_name = type(_object).__name__
-        builder_class_name = object_class_name + PARSER_SUFFIX
-        try:
-            builder_class = globals()[builder_class_name]
-        except KeyError as err:
-            # logger.debug("Could not find class {0}, reverting to generic builder class".format(err))
-            builder_class = globals()[GENERIC_BUILDER]
-        return builder_class
-    
-    def build(self):
-
-        #xml_root = ET.Element(f'{{{next(iter(self.namespace.values()))}}}CuemsProject')
-        xml_root = ET.Element(f'{{{next(iter(self.namespace.values()))}}}{self.xml_root_tag}')
-        xml_root.attrib= {f'{{{SCHEMA_INSTANCE_URI}}}schemaLocation': next(iter(self.namespace.values())) + " " + self.xsd_path}   
-        builder_class = self.get_builder_class(self._object)
-        self.xml_tree = builder_class(self._object, xml_tree = xml_root).build()
-        
-        self.xml_tree = ET.ElementTree(self.xml_tree)
-        return self.xml_tree
-
-class CuemsScriptXmlBuilder(XmlBuilder):
-    def __init__(self, _object, xml_tree):
-        self._object = _object
-        self.xml_tree = xml_tree
-        self.class_name = type(_object).__name__
-
-    def build(self):
-        cue_element = ET.SubElement(self.xml_tree, self.class_name)
-        
-
-        for key, value in self._object.items():
-            
-            if isinstance(value, (str, bool, int, float)):
-                cue_subelement = ET.SubElement(cue_element, str(key))
-                cue_subelement.text = str(value)
-            elif isinstance(value, (type(None))):
-                cue_subelement = ET.SubElement(cue_element, str(key))
-            else:
-                cue_subelement = cue_element
-                builder_class = self.get_builder_class(value)
-                sub_object_element = builder_class(value, xml_tree = cue_subelement).build()
-        return self.xml_tree
-
-class CueListXmlBuilder(CuemsScriptXmlBuilder):
-
-    
-    def build(self):
-        cuelist_element = ET.SubElement(self.xml_tree, self.class_name)
-        for key, value in self._object.items():
-            cue_subelement = ET.SubElement(cuelist_element, str(key))          
-            if isinstance(value, (str, bool, int, float)):
-                cue_subelement.text = str(value)
-            elif isinstance(value, (type(None))):
-                pass
-            elif isinstance(value, list):
-                for cuelist_item in value:
-                    builder_class = self.get_builder_class(cuelist_item)
-                    sub_object_element = builder_class(cuelist_item, xml_tree = cue_subelement).build()
-            else:
-                builder_class = self.get_builder_class(value)
-                sub_object_element = builder_class(value, xml_tree = cue_subelement).build()
-                
-
-        return self.xml_tree
-    
-        
-class GenericCueXmlBuilder(CuemsScriptXmlBuilder):
-        
-    def build(self):
-        cue_element = ET.SubElement(self.xml_tree, self.class_name)
-        for key, value in self._object.items():
-            if isinstance(value, (str, bool, int, float)):
-                cue_subelement = ET.SubElement(cue_element, str(key))
-                cue_subelement.text = str(value)
-            elif isinstance(value, (type(None))):
-                cue_subelement = ET.SubElement(cue_element, str(key))
-            elif isinstance(value, list):
-                cue_subelement = ET.SubElement(cue_element, str(key))
-                for list_item in value:
-                    builder_class = self.get_builder_class(list_item)
-                    sub_object_element = builder_class(list_item, xml_tree = cue_subelement).build()
-            elif isinstance(value, GenericDict):
-                cue_subelement = ET.SubElement(cue_element, str(key))
-                for sub_key, sub_value in value.items():
-                    sub_dict_element = ET.SubElement(cue_subelement, str(sub_key))
-                    sub_dict_element.text = str(sub_value)
-            else:
-                cue_subelement = ET.SubElement(cue_element, str(key))
-                builder_class = self.get_builder_class(value)
-                sub_object_element = builder_class(value, xml_tree = cue_subelement).build()
-
-class DmxSceneXmlBuilder(CuemsScriptXmlBuilder):
- 
-    def build(self):
-        cue_element = ET.SubElement(self.xml_tree, self.class_name)
-        universe_list = list(self._object.items())
-        for universe in universe_list:
-            builder_class = self.get_builder_class(universe[1])
-            sub_object_element = builder_class(universe, xml_tree = cue_element).build()
-            
-
-class DmxUniverseXmlBuilder(CuemsScriptXmlBuilder):
-        
-    def build(self):
-        cue_element = ET.SubElement(self.xml_tree, type(self._object[1]).__name__, id=str(self._object[0]))
-        channel_list = list(self._object[1].items())
-        for channel in channel_list:
-            builder_class = self.get_builder_class(channel[1])
-            sub_object_element = builder_class(channel, xml_tree = cue_element).build()
-    
-class DmxChannelXmlBuilder(CuemsScriptXmlBuilder):
-    
-    def build(self):
-        cue_element = ET.SubElement(self.xml_tree, type(self._object[1]).__name__, id=str(self._object[0]))
-        cue_element.text = str(self._object[1])
-
-
-
-class GenericSimpleSubObjectXmlBuilder(CuemsScriptXmlBuilder):
-    
-    def build(self):
-        cue_element = ET.SubElement(self.xml_tree, self.class_name)
-        cue_element.text = str(self._object)
-
-class GenericComplexSubObjectXmlBuilder(CuemsScriptXmlBuilder):
-    
-    def build(self):
-        if isinstance(self._object, dict):
-            for key, value in self._object.items():
-                if isinstance(value, (str, bool, int, float)):
-                    sub_dict_element = ET.SubElement(self.xml_tree, str(key))
-                    sub_dict_element.text = str(value)
-                elif isinstance(value, (type(None))):
-                    sub_dict_element = ET.SubElement(self.xml_tree, str(key))
-                elif isinstance(value, dict):
-                    sub_dict_element = ET.SubElement(self.xml_tree, str(key))
-                    self.recurser(value, sub_dict_element)
-                elif isinstance(value, list):
-                    sub_dict_element = ET.SubElement(self.xml_tree, str(key))
-                    self.recurser(value, sub_dict_element)
-
-    def recurser(self, group, xml_tree):
-        if isinstance(group, dict):
-            for key, value in group.items():
-                if isinstance(value, (str, bool, int, float)):
-                    cue_subelement = ET.SubElement(xml_tree, key)
-                    cue_subelement.text = str(value)
-                elif isinstance(value, (type(None))):
-                    cue_subelement = ET.SubElement(xml_tree, key)
-                elif isinstance(value, dict):
-                    cue_subelement = ET.SubElement(xml_tree, key)
-                    self.recurser(value, cue_subelement)
-        elif isinstance(group, list):
-            for item in group:
-                if isinstance(item, dict):
-                    self.recurser(item, xml_tree)
-
-class CTimecodeXmlBuilder(GenericSimpleSubObjectXmlBuilder):
-    pass
-
-class MediaXmlBuilder(GenericComplexSubObjectXmlBuilder):
-    def build(self):
-        
-
-        if isinstance(self._object, dict):
-            
-
-            for key, value in self._object.items():
-                if isinstance(value, (str, bool, int, float)):
-                    cue_subelement = ET.SubElement(self.xml_tree, key)
-                    cue_subelement.text = str(value)
-                elif isinstance(value, (type(None))):
-                    cue_subelement = ET.SubElement(self.xml_tree, key)
-                elif isinstance(value, dict):
-                    cue_subelement = ET.SubElement(self.xml_tree, key)
-                    self.recurser(value, cue_subelement)
-                elif isinstance(value, list):
-                    cue_subelement = ET.SubElement(self.xml_tree, key)
-                    for list_item in value:
-                        builder_class = self.get_builder_class(list_item)
-                        sub_object_element = builder_class(list_item, xml_tree =cue_subelement).build()
-                    
-
-
-
-
-class UI_propertiesXmlBuilder(GenericComplexSubObjectXmlBuilder):
-    pass
-
-class OutputsXmlBuilder(GenericComplexSubObjectXmlBuilder):
-    def build(self):
-        if isinstance(self._object, dict):
-            for key, value in self._object.items():
-                if isinstance(value, (str, bool, int, float)):
-                    sub_dict_element = ET.SubElement(self.xml_tree, str(key))
-                    sub_dict_element.text = str(value)
-                elif isinstance(value, (type(None))):
-                    sub_dict_element = ET.SubElement(self.xml_tree, str(key))
-                elif isinstance(value, dict):
-                    sub_dict_element = ET.SubElement(self.xml_tree, str(key))
-                    self.recurser(value, sub_dict_element)
-                elif isinstance(value, list):
-                    for item in value:
-                        sub_dict_element = ET.SubElement(self.xml_tree, str(key))
-                        self.recurser(item, sub_dict_element)
-        
-        return self.xml_tree
-
-    def recurser(self, group, xml_tree):
-        if isinstance(group, dict):
-            for key, value in group.items():
-                if isinstance(value, (str, bool, int, float)):
-                    output_subelement = ET.SubElement(xml_tree, key)
-                    output_subelement.text = str(value)
-                elif isinstance(value, (type(None))):
-                    output_subelement = ET.SubElement(xml_tree, key)
-                elif isinstance(value, dict):
-                    output_subelement = ET.SubElement(xml_tree, key)
-                    self.recurser(value, output_subelement)
-                elif isinstance(value, list):
-                    for item in value:
-                        output_subelement = ET.SubElement(xml_tree, key)
-                        self.recurser(item, output_subelement)
-        elif isinstance(group, list):
-            for item in group:
-                if isinstance(value, (str, bool, int, float)):
-                    xml_tree.text = str(item)
-                if isinstance(item, dict):
-                    self.recurser(item, xml_tree)
-        elif isinstance(group, (str, bool, int, float)):
-            xml_tree.text = str(group)
-
-class CueOutputsXmlBuilder(GenericComplexSubObjectXmlBuilder):
-
-    def build(self):
-        cue_element = ET.SubElement(self.xml_tree, self.class_name)
-
-        if isinstance(self._object, dict):
-            
-
-            for key, value in self._object.items():
-                if isinstance(value, (str, bool, int, float)):
-                    cue_subelement = ET.SubElement(cue_element, key)
-                    cue_subelement.text = str(value)
-                elif isinstance(value, (type(None))):
-                    cue_subelement = ET.SubElement(cue_element, key)
-                elif isinstance(value, dict):
-                    cue_subelement = ET.SubElement(cue_element, key)
-                    self.recurser(value, cue_subelement)
-                elif isinstance(value, list):
-                    cue_subelement = ET.SubElement(cue_element, key)
-                    self.recurser(value, cue_subelement)
-
-        else:   
-            cue_element.text = str(self._object)
-
-
-class AudioCueOutputXmlBuilder(CueOutputsXmlBuilder):
-    pass
-
-class VideoCueOutputXmlBuilder(CueOutputsXmlBuilder):
-    pass
-
-class DmxCueOutputXmlBuilder(CueOutputsXmlBuilder):
-    pass
-
-    
-class NoneTypeXmlBuilder(GenericSimpleSubObjectXmlBuilder): # TODO: clean, not need anymore? 
-    pass
diff --git a/src/cuems/XmlReaderWriter.py b/src/cuems/XmlReaderWriter.py
deleted file mode 100644
index 077a71d..0000000
--- a/src/cuems/XmlReaderWriter.py
+++ /dev/null
@@ -1,88 +0,0 @@
-""" For the moment it works with pip3 install xmlschema==1.2.2
- """
-
-import xml.etree.ElementTree as ET
-import xmlschema
-import datetime  as DT
-import os
-import json
-
-from .log import logger
-from .CTimecode import CTimecode
-from .CMLCuemsConverter import CMLCuemsConverter
-from .DictParser import CuemsParser
-from .XmlBuilder import XmlBuilder
-
-class CuemsXml():
-    def __init__(self, schema, xmlfile=None, namespace={'cms':'http://stagelab.net/cuems'}, xml_root_tag='CuemsProject'):
-        self.converter = CMLCuemsConverter
-        self.schema_object = None
-        self._xmlfile = None
-        self._schema = None
-        self.schema = schema
-        self.xmlfile = xmlfile
-        self.xmldata = None
-        self.namespace = namespace
-        self.xml_root_tag = xml_root_tag
-        
-    
-    @property
-    def schema(self):
-        return self._schema
-        
-
-    @schema.setter
-    def schema(self, path):
-        if path is not None:
-            if os.path.isfile(path):
-                self._schema = path
-                self.schema_object = xmlschema.XMLSchema11(self._schema, converter=self.converter)
-            else:
-                raise FileNotFoundError("schema file not found")
-
-
-    @property
-    def xmlfile(self):
-        return self._xmlfile
-
-    @xmlfile.setter
-    def xmlfile(self, path):
-        self._xmlfile = path
-            
-    def validate(self):
-        return self.schema_object.validate(self.xmlfile)
-    
-class XmlWriter(CuemsXml):
-
-    def write(self, xml_data, ):
-        self.schema_object.validate(xml_data)
-        xml_data.write(self.xmlfile, encoding="utf-8", xml_declaration=True)
-
-    def write_from_dict(self, project_dict):
-        project_object = CuemsParser(project_dict).parse()
-        xml_data = XmlBuilder(project_object, namespace=self.namespace, xsd_path=self.schema, xml_root_tag=self.xml_root_tag).build()
-        self.write(xml_data)
-
-    def write_from_object(self, project_object):
-        xml_data = XmlBuilder(project_object, namespace=self.namespace, xsd_path=self.schema, xml_root_tag=self.xml_root_tag).build()
-        self.write(xml_data)
-
-
-class XmlReader(CuemsXml):
- 
-
-    def read(self):
-        xml_dict = self.schema_object.to_dict(self.xmlfile, validation='strict',  strip_namespaces=False)
-        # remove namespace info from xml 
-        try:
-            del xml_dict['xmlns:cms']
-            del xml_dict['xmlns:xsi']
-            del xml_dict['xsi:schemaLocation']
-        except KeyError:
-            logger.warning('Error triying to remove namespace info on read')
-
-        return xml_dict
-
-    def read_to_objects(self):
-        xml_dict = self.read()
-        return CuemsParser(xml_dict).parse()
\ No newline at end of file
diff --git a/src/cuems/cuems_editor b/src/cuems/cuems_editor
deleted file mode 160000
index 7aab48e..0000000
--- a/src/cuems/cuems_editor
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit 7aab48e5be161cc21930e681765aa7e594004f95
diff --git a/src/cuems/log.py b/src/cuems/log.py
deleted file mode 100644
index a5f688a..0000000
--- a/src/cuems/log.py
+++ /dev/null
@@ -1,15 +0,0 @@
-
-import logging
-import logging.handlers
-
-logger = logging.getLogger() # no name = root logger
-logger.setLevel(logging.DEBUG)
-
-logger.propagate = False
-
-handler = logging.handlers.SysLogHandler(address = '/dev/log', facility = 'local0')
-
-formatter = logging.Formatter('Cuems:engine: (PID: %(process)d)-%(threadName)-9s)-(%(funcName)s) %(message)s')
-
-handler.setFormatter(formatter)
-logger.addHandler(handler)
\ No newline at end of file
diff --git a/src/cuems/osc_control_stagelab.egg-info/PKG-INFO b/src/cuems/osc_control_stagelab.egg-info/PKG-INFO
deleted file mode 100644
index a3da467..0000000
--- a/src/cuems/osc_control_stagelab.egg-info/PKG-INFO
+++ /dev/null
@@ -1,17 +0,0 @@
-Metadata-Version: 1.2
-Name: osc-control-stagelab
-Version: 0.0.0
-Summary: A small example package
-Home-page: https://github.com/stagesoft/osc_control
-Author: Ion Reguera
-Author-email: ion@stagelab.net
-License: UNKNOWN
-Description: add path to settings.xml
-        ----
-        run ossia_server.py
-        
-Platform: UNKNOWN
-Classifier: Programming Language :: Python :: 3
-Classifier: License :: OSI Approved :: MIT License
-Classifier: Operating System :: OS Independent
-Requires-Python: >=3.7
diff --git a/src/cuems/osc_control_stagelab.egg-info/SOURCES.txt b/src/cuems/osc_control_stagelab.egg-info/SOURCES.txt
deleted file mode 100644
index 1982bb1..0000000
--- a/src/cuems/osc_control_stagelab.egg-info/SOURCES.txt
+++ /dev/null
@@ -1,7 +0,0 @@
-README.md
-setup.py
-src/osc_control_stagelab.egg-info/PKG-INFO
-src/osc_control_stagelab.egg-info/SOURCES.txt
-src/osc_control_stagelab.egg-info/dependency_links.txt
-src/osc_control_stagelab.egg-info/entry_points.txt
-src/osc_control_stagelab.egg-info/top_level.txt
\ No newline at end of file
diff --git a/src/cuems/osc_control_stagelab.egg-info/dependency_links.txt b/src/cuems/osc_control_stagelab.egg-info/dependency_links.txt
deleted file mode 100644
index 8b13789..0000000
--- a/src/cuems/osc_control_stagelab.egg-info/dependency_links.txt
+++ /dev/null
@@ -1 +0,0 @@
-
diff --git a/src/cuems/osc_control_stagelab.egg-info/entry_points.txt b/src/cuems/osc_control_stagelab.egg-info/entry_points.txt
deleted file mode 100644
index fc6baf4..0000000
--- a/src/cuems/osc_control_stagelab.egg-info/entry_points.txt
+++ /dev/null
@@ -1,3 +0,0 @@
-[console_scripts]
-ossia_server = ossia_server:main
-
diff --git a/src/cuems/osc_control_stagelab.egg-info/top_level.txt b/src/cuems/osc_control_stagelab.egg-info/top_level.txt
deleted file mode 100644
index 8b13789..0000000
--- a/src/cuems/osc_control_stagelab.egg-info/top_level.txt
+++ /dev/null
@@ -1 +0,0 @@
-
diff --git a/src/cuems/outputs.xsd b/src/cuems/outputs.xsd
deleted file mode 100644
index c9449b9..0000000
--- a/src/cuems/outputs.xsd
+++ /dev/null
@@ -1,21 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<xs:schema targetNamespace="http://stagelab.net/cuems" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:cms="http://stagelab.net/cuems">
-    <xs:element name="CuemsOutputs">
-        <xs:complexType>
-            <xs:sequence>
-                <xs:element name="video_outputs" type="cms:OutputsType" />
-                <xs:element name="default_video_output" type="xs:string" />
-                <xs:element name="audio_outputs" type="cms:OutputsType" />
-                <xs:element name="default_audio_output" type="xs:string" />
-            </xs:sequence>
-        </xs:complexType>
-    </xs:element>
-
-    <!-- TYPES DEFINITIONS -->
-    <xs:complexType name="OutputsType">
-        <xs:sequence>
-            <xs:element name="output" type="xs:string" minOccurs="0" maxOccurs="unbounded" />
-        </xs:sequence>
-    </xs:complexType>
-
-</xs:schema>
\ No newline at end of file
diff --git a/src/cuems/project_mappings.xsd b/src/cuems/project_mappings.xsd
deleted file mode 100644
index ea27d7f..0000000
--- a/src/cuems/project_mappings.xsd
+++ /dev/null
@@ -1,48 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<xs:schema targetNamespace="http://stagelab.net/cuems" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:cms="http://stagelab.net/cuems">
-    <xs:element name="CuemsProjectMappings">
-        <xs:complexType>
-            <xs:sequence>
-                <xs:element name="audio" minOccurs="0" maxOccurs="1" type="cms:DeviceType" />
-                <xs:element name="video" minOccurs="0" maxOccurs="1" type="cms:DeviceType" />
-                <xs:element name="dmx" minOccurs="0" maxOccurs="1" type="cms:DeviceType" />
-            </xs:sequence>
-        </xs:complexType>
-    </xs:element>
-
-    <xs:complexType name="DeviceType">
-        <xs:sequence>
-            <xs:element name="outputs" minOccurs="0" maxOccurs="unbounded" type="cms:PutGroupType" />
-            <xs:element name="default_output" minOccurs="0" maxOccurs="1" type="xs:string" />
-            <xs:element name="inputs" minOccurs="0" maxOccurs="unbounded" type="cms:PutGroupType" />
-            <xs:element name="default_input" minOccurs="0" maxOccurs="1" type="xs:string" />
-        </xs:sequence>
-    </xs:complexType>
-
-    <xs:complexType name="PutGroupType">
-        <xs:choice>
-            <xs:element name="output" minOccurs="0" maxOccurs="unbounded" type="cms:PutType"/>
-            <xs:element name="input" minOccurs="0" maxOccurs="unbounded" type="cms:PutType"/>
-        </xs:choice>
-    </xs:complexType>
-
-    <xs:complexType name="PutType">
-        <xs:sequence>
-            <xs:element name="name" minOccurs="1" maxOccurs="1" type="cms:NonEmptyString"></xs:element>
-            <xs:element name="mappings">
-                <xs:complexType>
-                    <xs:sequence>
-                        <xs:element name="mapped_to" minOccurs="1" maxOccurs="unbounded" type="xs:string"></xs:element>
-                    </xs:sequence>
-                </xs:complexType>
-            </xs:element>
-        </xs:sequence>
-    </xs:complexType>
-
-    <xs:simpleType name="NonEmptyString">
-        <xs:restriction base="xs:string">
-            <xs:minLength value="1" />
-            <xs:pattern value=".*[^\s].*" />
-        </xs:restriction>
-    </xs:simpleType>
-</xs:schema>
\ No newline at end of file
diff --git a/src/cuems/project_settings.xsd b/src/cuems/project_settings.xsd
deleted file mode 100644
index 0063ebe..0000000
--- a/src/cuems/project_settings.xsd
+++ /dev/null
@@ -1,23 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<xs:schema targetNamespace="http://stagelab.net/cuems" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:cms="http://stagelab.net/cuems">
-    <xs:element name="CuemsProjectSettings">
-        <xs:complexType>
-            <xs:sequence>
-                <xs:element name="setting" minOccurs="0" maxOccurs="unbounded" type="cms:SettingType" />
-            </xs:sequence>
-        </xs:complexType>
-    </xs:element>
-
-    <xs:complexType name="SettingType">
-        <xs:sequence>
-            <xs:element name="name" type="cms:NonEmptyString" />
-            <xs:element name="value" type="cms:NonEmptyString" />
-        </xs:sequence>
-    </xs:complexType>
-    <xs:simpleType name="NonEmptyString">
-        <xs:restriction base="xs:string">
-            <xs:minLength value="1" />
-            <xs:pattern value=".*[^\s].*" />
-        </xs:restriction>
-    </xs:simpleType>
-</xs:schema>
\ No newline at end of file
diff --git a/src/cuems/script.xsd b/src/cuems/script.xsd
deleted file mode 100644
index f7406c6..0000000
--- a/src/cuems/script.xsd
+++ /dev/null
@@ -1,403 +0,0 @@
-<?xml version="1.1" encoding="utf-8"?>
-<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:vc="http://www.w3.org/2007/XMLSchema-versioning" vc:minVersion="1.1" targetNamespace="http://stagelab.net/cuems" xmlns:cms="http://stagelab.net/cuems">
-  <!-- The main capsule to make it a whole, named CueMs -->
-  <!-- Our main object the script-->
-  <xs:annotation>
-    <xs:appinfo>StageLab CueMs v.0.1</xs:appinfo>
-    <xs:appinfo>https://github.com/stagesoft</xs:appinfo>
-    <xs:documentation xml:lang="en">
-        This schema defines the data structure for a script xml file to operate on
-        the CueMs system. https://www.stagelab.net/
-    </xs:documentation>
-  </xs:annotation>
-
-  <!-- Main and lonsome element in our schema containing all the others -->
-  <xs:element name="CuemsProject">
-    <xs:complexType>
-      <xs:sequence>
-        <!-- And our lonely script element, there should be just one per project -->
-        <xs:element name="CuemsScript">
-          <xs:complexType>
-            <!-- Which is a sequence of one of each of these objects -->
-            <xs:all>
-              <!-- The uuid, TODO specify the uuid format in a type -->
-              <xs:element name="uuid" type="cms:UuidType" />
-              <!-- The name, mainly a string, we can check lengths here too if desired -->
-              <xs:element name="name" type="cms:NameStringType" /> <!-- 3 - 60 chars -->
-              <!-- Long description of the script -->
-              <xs:element name="description" type="cms:DescriptionStringType" /> <!-- 0 - 255 chars -->
-              <!-- The date, Todo specify the date formant in a type-->
-              <xs:element name="created" type="cms:DateType" />
-              <xs:element name="modified" type="cms:DateType" />
-              <!-- The root cuelist of our project, mainly a cuelist at the root -->
-              <xs:element name="CueList" type="cms:CueListType" />
-            </xs:all>
-            <xs:assert test="modified &gt;= created" />
-          </xs:complexType>
-        </xs:element>
-      </xs:sequence>
-    </xs:complexType>
-  </xs:element>
-
-  <!-- UUID string restrictions specs -->
-  <xs:simpleType name="UuidType">
-    <xs:restriction base="xs:string">
-      <xs:pattern value="[a-f0-9]{8}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{12}|" />
-      <xs:maxLength value="36" />
-      <xs:minLength value="36" />
-    </xs:restriction>
-  </xs:simpleType>
-
-  <!-- Target UUID string restrictions specs -->
-  <xs:simpleType name="TargetType">
-    <xs:restriction base="xs:string">
-      <xs:pattern value="([a-f0-9]{8}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{12})|()" />
-      <xs:maxLength value="36" />
-      <xs:minLength value="0" />
-    </xs:restriction>
-  </xs:simpleType>
-
-  <!-- Name text string restrictions -->
-  <xs:simpleType name="NameStringType">
-    <xs:restriction base="xs:string">
-      <xs:minLength value="3" />
-      <xs:maxLength value="60" />
-    </xs:restriction>
-  </xs:simpleType>
-
-  <!-- Description text string restrictions -->
-  <xs:simpleType name="DescriptionStringType">
-    <xs:restriction base="xs:string">
-      <xs:minLength value="0" />
-      <xs:maxLength value="255" />
-    </xs:restriction>
-  </xs:simpleType>
-
-  <!-- Our cuelist type -->
-  <xs:complexType name="CueListType">
-    <xs:complexContent>
-      <!-- Which is an extension of the base cue type -->
-      <xs:extension base="cms:CueType">
-        <xs:sequence>
-          <xs:element name="contents" type="cms:CueListContentsType" />
-        </xs:sequence>
-      </xs:extension>
-    </xs:complexContent>
-  </xs:complexType>
-
-  <!-- Our generic cue type -->
-  <xs:complexType name="CueType">
-    <xs:complexContent>
-      <xs:extension base="cms:CommonPropertiesType"></xs:extension>
-    </xs:complexContent>
-  </xs:complexType>
-
-  <xs:complexType name="CommonPropertiesType">
-    <xs:sequence>
-      <!-- Its own uuid -->
-      <xs:element name="uuid" type="cms:UuidType" />
-      <xs:element name="id" type="xs:string" />
-      <xs:element name="name" type="cms:NameStringType" />
-      <xs:element name="description" type="cms:DescriptionStringType" />
-      <!-- A flag to disable to cue -->
-      <xs:element name="enabled" type="cms:BoolType" />
-      <!-- A flag to indicate auto arming -->
-      <xs:element name="loaded" type="cms:BoolType" />
-      <!-- Timecode behaviour flag -->
-      <xs:element name="timecode" type="cms:BoolType" />
-      <!-- Its time mark -->
-      <xs:element name="offset" type="cms:CTimecodeType" />
-      <xs:element name="loop" type="cms:LoopType" /> <!-- -1/0/n -->
-      <!-- Execution options -->
-      <xs:element name="prewait" type="cms:CTimecodeType" /> <!-- After go before play -->
-      <xs:element name="postwait" type="cms:CTimecodeType" /> <!-- After play before post go-->
-      <xs:element name="post_go" type="cms:PostGoType" /> <!-- Types: pause/go/go_at_end -->
-      <xs:element name="target" type="cms:TargetType" /> <!-- target uuid -->
-      <xs:element name="UI_properties" type="cms:UiPropertiesType" />
-    </xs:sequence>
-  </xs:complexType>
-
-  <!-- Our cuelist contents type -->
-  <xs:complexType name="CueListContentsType">
-    <xs:choice minOccurs="0" maxOccurs="unbounded">
-      <!-- Can have any other cuelists, recursively -->
-      <xs:element name="CueList" type="cms:CueListType" />
-      <!-- Can have any cues -->
-      <xs:element name="Cue" type="cms:CueType" />
-      <!-- Can be also specific type cues -->
-      <xs:element name="AudioCue" type="cms:AudioCueType" />
-      <xs:element name="DmxCue" type="cms:DmxCueType" />
-      <xs:element name="VideoCue" type="cms:VideoCueType" />
-      <xs:element name="ActionCue" type="cms:ActionCueType" />
-    </xs:choice>
-  </xs:complexType>
-
-  <xs:simpleType name="PostGoType">
-    <xs:restriction base="xs:string">
-      <xs:enumeration value="pause" />
-      <xs:enumeration value="go" />
-      <xs:enumeration value="go_at_end" />
-    </xs:restriction>
-  </xs:simpleType>
-
-  <xs:complexType name="UiPropertiesType">
-    <xs:all minOccurs="0">
-      <xs:element name="timeline_position" type="cms:Coordinates" />
-      <xs:element name="warning" type="xs:integer" />
-    </xs:all>
-  </xs:complexType>
-
-  <xs:complexType name="Coordinates">
-    <xs:sequence>
-      <xs:element name="x" type="xs:integer" />
-      <xs:element name="y" type="xs:integer" />
-    </xs:sequence>
-  </xs:complexType>
-
-  <!-- Our audio cue type-->
-  <xs:complexType name="AudioCueType">
-    <xs:complexContent>
-      <xs:extension base="cms:CueType">
-        <xs:sequence>
-          <xs:element name="Media" type="cms:MediaType" />
-          <xs:element name="master_vol" type="cms:PercentType" />
-          <xs:element name="Outputs" type="cms:OutputsType" />
-        </xs:sequence>
-      </xs:extension>
-    </xs:complexContent>
-  </xs:complexType>
-
-  <xs:complexType name="MediaType">
-    <xs:sequence minOccurs="0" maxOccurs="1">
-      <xs:element name="file_name" type="xs:string" />
-      <xs:element name="regions" type="cms:RegionsType" />
-    </xs:sequence>
-  </xs:complexType>
-
-  <xs:complexType name="RegionsType">
-    <xs:sequence minOccurs="1" maxOccurs="unbounded">
-      <xs:element name="region" type="cms:RegionType" />
-    </xs:sequence>
-  </xs:complexType>
-
-  <xs:complexType name="RegionType">
-    <xs:sequence minOccurs="1">
-      <xs:element name="id" type="xs:nonNegativeInteger" />
-      <xs:element name="loop" type="xs:nonNegativeInteger" />
-      <xs:element name="in_time" type="cms:CTimecodeType" />
-      <xs:element name="out_time" type="cms:CTimecodeType" />
-    </xs:sequence>
-  </xs:complexType>
-
-  <xs:complexType name="OutputsType">
-    <xs:choice minOccurs="0" maxOccurs="unbounded">
-      <xs:element name="AudioCueOutput" type="cms:AudioCueOutputsType" />
-      <xs:element name="VideoCueOutput" type="cms:VideoCueOutputsType" />
-    </xs:choice>
-  </xs:complexType>
-
-  <xs:complexType name="AudioCueOutputsType">
-    <xs:sequence minOccurs="0" maxOccurs="unbounded">
-      <xs:element name="output_name" type="cms:NameStringType" />
-      <xs:element name="output_vol" type="cms:PercentType" />
-      <xs:element name="channels" type="cms:AudioChannelsType" />
-    </xs:sequence>
-  </xs:complexType>
-
-  <xs:complexType name="AudioChannelsType">
-    <xs:sequence minOccurs="0" maxOccurs="unbounded">
-      <xs:element name="channel" type="cms:AudioChannelType" />
-    </xs:sequence>
-  </xs:complexType>
-
-  <xs:complexType name="AudioChannelType">
-    <xs:sequence>
-        <xs:element name="channel_num" type="xs:integer" />
-        <xs:element name="channel_vol" type="xs:integer" />
-    </xs:sequence>
-  </xs:complexType>
-
-  <xs:complexType name="VideoCueType">
-    <xs:complexContent>
-      <xs:extension base="cms:CueType">
-        <xs:sequence>
-          <!-- A video media file path which can be none -->
-          <xs:element name="Media" type="cms:MediaType" />
-          <!-- An outputs section -->
-          <xs:element name="Outputs" type="cms:OutputsType" />
-        </xs:sequence>
-      </xs:extension>
-    </xs:complexContent>
-  </xs:complexType>
-
-  <xs:complexType name="VideoCueOutputsType">
-    <!-- Video outputs type -->
-    <!-- Specify n virtual video outputs -->
-    <xs:sequence minOccurs="1" maxOccurs="1">
-      <xs:element name="output_name" type="cms:NameStringType" />
-      <xs:element name="output_geometry" type="cms:VideoOutputGeometryType" />
-    </xs:sequence>
-  </xs:complexType>
-
-  <xs:complexType name="VideoOutputGeometryType">
-    <!-- Specs of the four corners of a media to display -->
-    <xs:sequence minOccurs="0" maxOccurs="1">
-      <xs:element name="x_scale" type="xs:float" />
-      <xs:element name="y_scale" type="xs:float" />
-      <xs:element name="corners" type="cms:VideoCornersType" />
-    </xs:sequence>
-  </xs:complexType>
-
-  <xs:complexType name="VideoCornersType">
-    <xs:sequence>
-      <xs:element name="top_left" type="cms:Coordinates" />
-      <xs:element name="top_right" type="cms:Coordinates" />
-      <xs:element name="bott_left" type="cms:Coordinates" />
-      <xs:element name="bott_right" type="cms:Coordinates" />
-    </xs:sequence>
-  </xs:complexType>
-
-  <xs:complexType name="DmxCueType">
-    <xs:complexContent>
-      <xs:extension base="cms:CueType">
-        <xs:sequence>
-          <!-- A dmx media file path which can be none -->
-          <xs:element name="Media" type="cms:MediaType" />
-          <xs:element name="fadein_time" type="xs:integer" />
-          <xs:element name="fadeout_time" type="xs:integer" />
-        </xs:sequence>
-      </xs:extension>
-    </xs:complexContent>
-  </xs:complexType>
-
-  <!-- Dmx scene type -->
-  <xs:complexType name="DmxSceneType">
-    <xs:sequence>
-      <xs:element name="uuid" type="xs:string" />
-      <xs:element name="name" type="cms:NameStringType" />
-      <xs:element name="description" type="cms:DescriptionStringType" />
-      <!-- We allow a max of 10 universes un a scene by now -->
-      <xs:element name="DmxUniverse" type="cms:DmxUniverseType">
-        <!-- They must be unique id's specs for the channels -->
-        <xs:unique name="unique_universe_number">
-          <xs:selector xpath="DmxUniverse" />
-          <xs:field xpath="@id" />
-        </xs:unique>
-      </xs:element>
-    </xs:sequence>
-  </xs:complexType>
-
-  <!-- Dmx universe type -->
-  <xs:complexType name="DmxUniverseType">
-    <xs:sequence>
-      <xs:element name="id" type="xs:positiveInteger"></xs:element>
-      <!-- List contents (to make it a list in python) -->
-      <xs:element name="dmx_channels" type="cms:DmxUniverseContentsType">
-        <xs:unique name="unique_channel_number">
-          <xs:selector xpath="dmx_channel" />
-          <xs:field xpath="@id" />
-        </xs:unique>
-      </xs:element>
-    </xs:sequence>
-    <xs:attribute name="id" type="xs:byte" />
-  </xs:complexType>
-
-  <!-- DMX allows a max of 512 different channels in a universe -->
-  <xs:complexType name="DmxUniverseContentsType">
-    <xs:sequence>
-      <xs:element name="dmx_channel" type="cms:DmxChannelType" minOccurs="0" maxOccurs="512" />
-    </xs:sequence>
-  </xs:complexType>
-
-  <!-- Dmx basic channel type -->
-  <xs:complexType name="DmxChannelType">
-    <xs:simpleContent>
-      <xs:extension base="xs:unsignedByte">
-        <xs:attribute name="id" type="cms:ChannelNumber" />
-      </xs:extension>
-    </xs:simpleContent>
-  </xs:complexType>
-
-  <xs:simpleType name="ChannelNumber">
-    <xs:restriction base="xs:integer">
-      <xs:minInclusive value="0" />
-      <xs:maxInclusive value="511" />
-    </xs:restriction>
-  </xs:simpleType>
-
-  <xs:complexType name="ActionCueType">
-    <xs:complexContent>
-      <xs:extension base="cms:CueType">
-        <xs:sequence>
-          <xs:element name="action_type" type="cms:ActionType" minOccurs="0" />
-          <xs:element name="action_target" type="cms:TargetType" />
-        </xs:sequence>
-      </xs:extension>
-    </xs:complexContent>
-  </xs:complexType>
-
-  <xs:simpleType name="ActionType">
-    <xs:restriction base="xs:string">
-      <xs:enumeration value="play" />
-      <xs:enumeration value="pause" />
-      <xs:enumeration value="stop" />
-      <xs:enumeration value="load" />
-      <xs:enumeration value="unload" />
-      <xs:enumeration value="enable" />
-      <xs:enumeration value="disable" />
-      <xs:enumeration value="fade_in" />
-      <xs:enumeration value="fade_out" />
-      <xs:enumeration value="wait" />
-      <xs:enumeration value="go_to" />
-      <xs:enumeration value="pause_project" />
-      <xs:enumeration value="resume_project" />
-    </xs:restriction>
-  </xs:simpleType>
-
-  <xs:simpleType name="BoolType">
-    <xs:restriction base="xs:string">
-      <xs:enumeration value="True" />
-      <xs:enumeration value="False" />
-    </xs:restriction>
-  </xs:simpleType>
-
-  <xs:simpleType name="DateType">
-    <xs:restriction base="xs:dateTime">
-      <xs:minInclusive value="2020-01-01T00:00:00"></xs:minInclusive>
-    </xs:restriction>
-  </xs:simpleType>
-
-  <xs:simpleType name="TimecodeType">
-    <xs:restriction base="xs:string">
-      <xs:pattern value="[0-9]{2}:[0-9]{2}:[0-9]{2}.[0-9]{3}" />
-    </xs:restriction>
-  </xs:simpleType>
-
-  <xs:complexType name="CTimecodeType">
-    <!-- Can be a timecode field or an empty NoneType field -->
-    <xs:choice minOccurs="0">
-      <xs:element name="CTimecode" type="cms:TimecodeType" />
-    </xs:choice>
-  </xs:complexType>
-
-  <xs:simpleType name="PercentType">
-    <!-- Integer from 0 to 100 -->
-    <xs:restriction base="xs:integer">
-      <xs:minInclusive value="0" />
-      <xs:maxInclusive value="100" />
-    </xs:restriction>
-  </xs:simpleType>
-
-  <xs:simpleType name="EmptyStringType">
-    <xs:restriction base="xs:string">
-      <xs:maxLength value="0"></xs:maxLength>
-    </xs:restriction>
-  </xs:simpleType>
-
-  <xs:simpleType name="LoopType">
-    <xs:restriction base="xs:integer">
-      <xs:minInclusive value="0" />
-    </xs:restriction>
-  </xs:simpleType>
-
-</xs:schema>
diff --git a/src/cuems/settings.xsd b/src/cuems/settings.xsd
deleted file mode 100644
index 53de5ab..0000000
--- a/src/cuems/settings.xsd
+++ /dev/null
@@ -1,111 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<xs:schema targetNamespace="http://stagelab.net/cuems" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:cms="http://stagelab.net/cuems">
-    <xs:element name="CuemsSettings">
-        <xs:complexType>
-            <xs:sequence>
-                <xs:element name="Settings">
-                    <xs:complexType>
-                        <xs:sequence>
-                            <xs:element name="library_path" type="xs:string" minOccurs="1" maxOccurs="1" />
-                            <xs:element name="tmp_upload_path" type="xs:string" minOccurs="1" maxOccurs="1" />
-                            <xs:element name="database_name" type="xs:string" minOccurs="1" maxOccurs="1" />
-                            <!-- Node settings -->
-                            <xs:element name="node" type="cms:NodeConfType" minOccurs="1" maxOccurs="1"></xs:element>
-                        </xs:sequence>
-                    </xs:complexType>
-                </xs:element>
-            </xs:sequence>
-        </xs:complexType>
-    </xs:element>
-
-
-    <!-- TYPES DEFINITIONS -->
-    <xs:complexType name="NodeConfType">
-        <xs:sequence>
-            <xs:element name="osc_dest_host" type="cms:NonEmptyString" />
-            <xs:element name="oscquery_port" type="xs:positiveInteger" />
-            <xs:element name="oscquery_out_port" type="xs:positiveInteger" />
-            <xs:element name="websocket_port" type="xs:positiveInteger" />
-            <xs:element name="load_timeout" type="xs:positiveInteger" />
-            <xs:element name="discovery_timeout" type="xs:positiveInteger" />
-            <xs:element name="mtc_port" type="xs:string" />
-            <xs:element name="osc_in_port_base" type="xs:positiveInteger" />
-            <xs:element name="videoplayer" type="cms:VideoPlayerType" minOccurs="0" maxOccurs="1" />
-            <xs:element name="audioplayer" type="cms:AudioPlayerType" minOccurs="0" maxOccurs="1" />
-            <xs:element name="dmxplayer" type="cms:DmxPlayerType" minOccurs="0" maxOccurs="1" />
-        </xs:sequence>
-        <xs:attribute name="id" type="xs:int"></xs:attribute>
-        <xs:attribute name="master" type="cms:BoolType" />
-    </xs:complexType>
-
-    <xs:complexType name="PlayerType">
-        <xs:sequence>
-            <xs:element name="path" type="cms:NonEmptyString" />
-            <xs:element name="args" type="xs:string" />
-        </xs:sequence>
-    </xs:complexType>
-
-    <xs:complexType name="VideoPlayerType">
-        <xs:complexContent>
-            <xs:extension base="cms:PlayerType">
-                <xs:sequence>
-                    <xs:element name="outputs" type="xs:positiveInteger"></xs:element>
-                </xs:sequence>
-            </xs:extension>
-        </xs:complexContent>
-    </xs:complexType>
-
-    <xs:complexType name="AudioPlayerType">
-        <xs:complexContent>
-            <xs:extension base="cms:PlayerType">
-                <xs:sequence>
-                    <xs:element name="audio_cards" type="xs:positiveInteger"></xs:element>
-                </xs:sequence>
-            </xs:extension>
-        </xs:complexContent>
-    </xs:complexType>
-
-    <xs:complexType name="DmxPlayerType">
-        <xs:complexContent>
-            <xs:extension base="cms:PlayerType">
-                <xs:sequence>
-                    <xs:element name="universes" type="xs:positiveInteger"></xs:element>
-                </xs:sequence>
-            </xs:extension>
-        </xs:complexContent>
-    </xs:complexType>
-
-    <xs:simpleType name="BoolType">
-        <xs:restriction base="xs:string">
-            <xs:enumeration value="True" />
-            <xs:enumeration value="False" />
-        </xs:restriction>
-    </xs:simpleType>
-
-    <xs:simpleType name="DateType">
-        <xs:restriction base="xs:dateTime">
-            <xs:minInclusive value="2020-01-01T00:00:00"></xs:minInclusive>
-        </xs:restriction>
-    </xs:simpleType>
-
-    <xs:simpleType name="TimecodeType">
-        <xs:restriction base="xs:string">
-            <xs:pattern value="[0-9]{2}:[0-9]{2}:[0-9]{2}:[0-9]{2}" />
-        </xs:restriction>
-    </xs:simpleType>
-
-    <xs:complexType name="CTimecodeType">
-        <xs:choice>
-            <xs:element name="CTimecode" type="cms:TimecodeType" default="00:00:00:00" />
-            <xs:element name="NoneType" type="xs:string" />
-        </xs:choice>
-    </xs:complexType>
-
-    <xs:simpleType name="NonEmptyString">
-        <xs:restriction base="xs:string">
-            <xs:minLength value="1" />
-            <xs:pattern value=".*[^\s].*" />
-        </xs:restriction>
-    </xs:simpleType>
-
-</xs:schema>
\ No newline at end of file
diff --git a/src/cuemsengine/ControllerEngine.py b/src/cuemsengine/ControllerEngine.py
new file mode 100644
index 0000000..7a8e5e7
--- /dev/null
+++ b/src/cuemsengine/ControllerEngine.py
@@ -0,0 +1,845 @@
+import asyncio
+import time
+from functools import partial
+
+from cuemsutils.log import Logger, logged
+
+from .core.BaseEngine import BaseEngine, NODE_ENGINE_PORT, CONTROLLER_HOST
+from .core.libmtc import libmtcmaster
+from .comms.ControllerCommunications import ControllerCommunications
+from .comms.NodesHub import NodeOperation, ActionType, OperationType
+
+
+class ControllerEngine(BaseEngine):
+    '''
+    The main engine class for the CUEMS system.
+    
+    An object of this class runs all the inner logical part of communications with:
+      - The WebSocket system
+      - The Ossia System
+      - The MTC System
+      - The NodeEngine local and remote instances
+      - The NNG communication system
+
+    It is responsible for:
+      - Monitoring the NodeEngine local and remote instances
+      - Restarting the NodeEngine local and remote instances
+      - Updating the NodeEngine local and remote instances
+      - Handling the NodeEngine local and remote instances failures
+      - Handling the NNG communication system
+      - Handling the WebSocket system
+      - Handling the Ossia System
+      - Handling the MTC master system
+      - Handling the NodeConf system
+    '''
+    # Controller→UI WebSocket throttle for cue percentage updates.
+    # State transitions (0, 1, 100) always bypass this and broadcast immediately.
+    # Only in-progress percentage values (2-99) are throttled.
+    # Two-tier throttle: Tier 1 is node-side (CUE_STATUS_UPDATE_HZ in loop_cue.py);
+    # Tier 2 is here, capping WS broadcasts even when multiple nodes send updates
+    # in quick succession.
+    CUE_BROADCAST_MIN_INTERVAL = 0.25  # seconds — max 4 Hz to UI per cue
+
+    def __init__(self, **kwargs):
+        # Must be set before super().__init__() because BaseEngine sets
+        # self.timecode = None which triggers on_timecode_change() via the
+        # property setter, and that method reads these attributes.
+        self._last_timecode_second: int = -1  # last whole-second value broadcast to UI
+        # Per-cue status dict: maps cue uuid → int status value.
+        # Values: 0=unplayed, 1-99=playing (1 until percentage enabled), 100=played, -1=error
+        self.cue_status: dict[str, int] = {}
+        # Per-cue enabled status: maps cue uuid → bool.
+        # Initialised from XML on load_project, updated by show-time toggles.
+        # Resets to XML values on reload; persists across stop/go.
+        self.cue_enabled_status: dict[str, bool] = {}
+        # Per-cue last-broadcast timestamps for WS throttle (Tier 2).
+        self._cue_broadcast_timestamps: dict[str, float] = {}
+        super().__init__(**kwargs)
+        self.set_editor_request('')
+        self.set_node_operation_callback()
+
+    def start(self):
+        self.create_timecode()
+        self.set_comms()
+        # Always re-detect after create_timecode(): the MtcMaster sender port
+        # ("MtcMaster:MTCPort") only appears in the ALSA port list AFTER the
+        # sender is created.  Connecting the listener directly to that port is
+        # the most reliable loopback path; any earlier detection would have
+        # picked a wrong/fallback port (e.g. rtpmidid:Announcements).
+        Logger.info('Re-detecting MIDI port after MTC sender creation...')
+        self.mtc_listener._MtcListener__open_port(None)
+        self.mtc_listener.start()
+        super().start()
+
+    def set_status(self, property: str, value: str, strict: bool = False) -> None:
+        """Set status and push to UI via WebSocket when running, armed, or load."""
+        super().set_status(property, value, strict)
+        if property in ('running', 'armed', 'load', 'nextcue'):
+            self._broadcast_status(property, value)
+    
+    @logged
+    def set_comms(self):
+        # Start communicators with WebSocket handler on port 9190
+        self.set_communicators()
+
+    def set_communicators(self):
+        Logger.info('Setting up Communicators')
+        
+        # Get OSC hub host from ConfigManager or use default
+        if hasattr(self, 'cm') and self.cm:
+            osc_hub_host = self.cm.controller_url
+        else:
+            osc_hub_host = CONTROLLER_HOST
+        
+        # Get NNG hub port from config (must match NodeEngine)
+        if hasattr(self, 'cm') and self.cm and hasattr(self.cm, 'node_conf'):
+            nng_hub_port = self.cm.node_conf.get('nng_hub_port', 9093)
+            # Use port 9190 for WebSocket OSC - we start BEFORE pyossia to claim this port
+            # This allows UI to send commands via Apache's /realtime proxy to ws://127.0.0.1:9190
+            websocket_osc_port = self.cm.node_conf.get('oscquery_ws_port', 9190)
+            node_id = self.cm.node_conf.get('uuid', 'controller')
+        else:
+            nng_hub_port = 9093
+            websocket_osc_port = 9190  # Take port 9190 for WebSocket OSC
+            node_id = 'controller'
+        
+        # LISTENER binds to all interfaces (0.0.0.0) so it does not depend on the
+        # avahi link-local address (169.254.x.x) being assigned before startup.
+        # NodeEngine (DIALER) still targets the specific controller_url IP.
+        nng_hub_address = f"tcp://0.0.0.0:{nng_hub_port}"
+        
+        Logger.info(f'NNG Hub address: {nng_hub_address}')
+        
+        # WebSocket OSC configuration for receiving commands from UI
+        # Uses port 9190 (same as Apache /realtime proxy target) to receive
+        # OSC commands directly. Started BEFORE pyossia to claim the port.
+        websocket_osc_config = {
+            'host': '0.0.0.0',
+            'port': websocket_osc_port,
+            'node_id': node_id
+        }
+        Logger.info(f'WebSocket OSC port: {websocket_osc_port}')
+        
+        self.communications_thread = ControllerCommunications(
+            nng_hub_address=nng_hub_address,
+            editor_callback=self.editor_command_callback,
+            node_operation_callback=self.node_operation_callback,
+            websocket_osc_config=websocket_osc_config
+        )
+        
+        # Register command handlers for WebSocket OSC
+        self._register_osc_command_handlers()
+        self.communications_thread.set_on_client_connect(self._on_ws_client_connect)
+
+        self.communications_thread.start()
+        
+        # Wait for NNG thread to initialize (prevents race condition in nni_random)
+        from time import sleep
+        max_wait = 5.0  # seconds
+        wait_interval = 0.1
+        waited = 0.0
+        while waited < max_wait:
+            if (self.communications_thread.is_alive() and 
+                self.communications_thread.event_loop is not None):
+                Logger.info(f"NNG communications thread ready after {waited:.1f}s")
+                break
+            sleep(wait_interval)
+            waited += wait_interval
+        else:
+            Logger.warning(f"NNG communications thread not ready after {max_wait}s")
+    
+    def _register_osc_command_handlers(self):
+        """Register OSC command handlers for WebSocket OSC receiving.
+        
+        These handlers are called when commands are received from the UI via
+        WebSocket OSC. Commands are also forwarded to NodeEngine via NNG.
+        """
+        # Command handlers - same as used in _command_poll_loop
+        self.communications_thread.register_command_handler(
+            '/engine/command/go', self.go_script, forward_to_nodes=False
+        )
+        self.communications_thread.register_command_handler(
+            '/engine/command/load', self.deploy_project, forward_to_nodes=False
+        )
+        self.communications_thread.register_command_handler(
+            '/engine/command/stop', self.stop_script, forward_to_nodes=False
+        )
+        self.communications_thread.register_command_handler(
+            '/engine/command/setnextcue', self._setnextcue_handler, forward_to_nodes=False
+        )
+        self.communications_thread.register_command_handler(
+            '/engine/command/cue_enabled', self._cue_enabled_handler, forward_to_nodes=False
+        )
+
+        # Register wildcard handler for player messages (engine format)
+        self.communications_thread.register_osc_handler(
+            '/engine/players/*', self._handle_player_osc_message
+        )
+        
+        # Register handler for direct node/player messages from UI
+        # UI sends: /<node_uuid>/audiomixer/<channel> or /<node_uuid>/jadeo/<cmd>
+        # We need to catch these and forward to NodeEngine
+        node_uuid = self.cm.node_conf.get('uuid', '') if hasattr(self, 'cm') and self.cm else ''
+        if node_uuid:
+            self.communications_thread.register_osc_handler(
+                f'/{node_uuid}/*', self._handle_direct_player_osc_message
+            )
+            Logger.info(f"Registered direct player OSC handler for /{node_uuid}/*")
+        
+        Logger.info("OSC command handlers registered for WebSocket receiving")
+    
+    def _handle_direct_player_osc_message(self, address: str, args: list):
+        """Handle direct player OSC messages from UI (/<node_uuid>/<type>/...).
+        
+        These are forwarded directly to the local node's player handlers.
+        """
+        value = args[0] if args else None
+        
+        # Parse: /<node_uuid>/<type>/<...>
+        parts = address.strip('/').split('/')
+        if len(parts) < 2:
+            Logger.warning(f"Invalid direct player OSC address: {address}")
+            return
+        
+        # parts[0] is node_uuid, parts[1] is type (audiomixer, jadeo, etc.)
+        player_type = parts[1]
+        
+        Logger.debug(f"Direct player OSC: {address} = {repr(value)}")
+        
+        # Forward to NodeEngine via NNG as player_control
+        operation = NodeOperation(
+            type=OperationType.COMMAND,
+            action=ActionType.UPDATE,
+            sender=self.cm.node_conf.get('uuid', 'controller') if hasattr(self, 'cm') and self.cm else 'controller',
+            target='player_control',
+            data={'address': address, 'value': value}
+        )
+        
+        try:
+            import asyncio
+            asyncio.run_coroutine_threadsafe(
+                self.communications_thread.nng_hub.send_operation(operation),
+                self.communications_thread.event_loop
+            )
+            Logger.debug(f"Forwarded direct player OSC to nodes: {address} = {repr(value)}")
+        except Exception as e:
+            Logger.error(f"Error forwarding direct player OSC to nodes: {e}")
+    
+    def _handle_player_osc_message(self, address: str, args: list):
+        """Handle player-related OSC messages from UI.
+        
+        These are forwarded to NodeEngine via NNG for player control
+        (video, audio mixer, DMX, etc.)
+        """
+        # Forward to NodeEngine via NNG
+        value = args[0] if args else None
+        
+        # Create a COMMAND operation for player control
+        operation = NodeOperation(
+            type=OperationType.COMMAND,
+            action=ActionType.UPDATE,
+            sender=self.cm.node_conf.get('uuid', 'controller') if hasattr(self, 'cm') and self.cm else 'controller',
+            target='player_control',
+            data={'address': address, 'value': value}
+        )
+        
+        try:
+            import asyncio
+            asyncio.run_coroutine_threadsafe(
+                self.communications_thread.nng_hub.send_operation(operation),
+                self.communications_thread.event_loop
+            )
+            Logger.debug(f"Forwarded player OSC to nodes: {address} = {repr(value)}")
+        except Exception as e:
+            Logger.error(f"Error forwarding player OSC to nodes: {e}")
+
+    def _forward_load_to_nodes(self, project_name: str) -> None:
+        """Forward a load command to NodeEngine via NNG."""
+        self._forward_command_to_nodes('/engine/command/load', project_name)
+
+    def stop(self):
+        self.stop_comms()
+        super().stop()
+
+    @logged
+    def stop_comms(self):
+        if self.with_mtc:
+            self.stop_timecode()
+        if hasattr(self, 'communications_thread'):
+            self.communications_thread.stop()
+
+    #########################
+    # Timecode
+    #########################
+    def create_timecode(self):
+        if self.with_mtc:
+            self.mtcmaster = libmtcmaster.MTCSender_create()
+        else:
+            Logger.info("Midi TimeCode requires with_mtc to be True.")
+
+    def start_timecode(self):
+        if self.with_mtc:
+            libmtcmaster.MTCSender_play(self.mtcmaster)
+            Logger.info("Midi TimeCode started.")
+        else:
+            Logger.info("Midi TimeCode requires with_mtc to be True.")
+
+    def stop_timecode(self):
+        if self.with_mtc:
+            libmtcmaster.MTCSender_stop(self.mtcmaster)
+            Logger.info("Midi TimeCode stopped.")
+        else:
+            Logger.info("Midi TimeCode requires with_mtc to be True.")
+
+
+    #########################
+    # Operation callbacks
+    #########################
+    def set_node_operation_callback(self):
+        self.node_operation_callback = {
+            OperationType.PLAYER: self.player_operation_callback,
+            OperationType.CUE: self.cue_operation_callback,
+            OperationType.STATUS: self.status_operation_callback
+        }
+
+    def player_operation_callback(self, operation: NodeOperation):
+        """
+        Callback invoked when players are received from nodes.
+        
+        Parameters:
+        - operation: NodeOperation with sender, target (player_id), and action
+        """
+        Logger.info(f'Player operation received: {operation}')
+
+    def cue_operation_callback(self, operation: NodeOperation):
+        """Callback invoked when cues are received from nodes.
+
+        Handles three action types:
+        - ADD:    cue started playing on a node → status 1, broadcast immediately
+        - REMOVE: cue finished playing on a node → status 100, broadcast immediately
+        - UPDATE: percentage progress from a node (future) → throttled broadcast
+        """
+        Logger.info(f'Cue operation received: {operation}')
+        cue_id = operation.data.get('id') if operation.data else None
+
+        # Drop operations for cues not belonging to the current project.
+        # This prevents stale REMOVE/ADD notifications from the NodeEngine
+        # (sent when it disarms the previous project) from being broadcast
+        # to the UI as unknown UUIDs.
+        if cue_id and cue_id not in self.cue_status:
+            Logger.debug(f'Ignoring cue operation for unknown/stale cue_id {cue_id} (action={operation.action})')
+            return
+
+        if operation.action == ActionType.ADD:
+            # Cue started playing: mark as playing (1) and broadcast immediately.
+            if cue_id:
+                self.cue_status[cue_id] = 1
+                self._broadcast_cue_status(cue_id, 1, force=True)
+            try:
+                self.status.currentcue = [operation.data['id'], operation.data['offset']]
+                Logger.debug(f"Current cue updated: {self.status.currentcue}")
+            except Exception as e:
+                Logger.error(f'Error updating currentcue: {e}')
+
+        elif operation.action == ActionType.REMOVE:
+            # Cue finished playing: mark as played (100) and broadcast immediately.
+            # Only transition to 100 if the cue was actually playing (status == 1).
+            # REMOVEs that arrive while status is 0 (e.g. NodeEngine disarming the
+            # previous project after a reload) are stale and must be silently dropped.
+            if cue_id:
+                if self.cue_status.get(cue_id) == 1:
+                    self.cue_status[cue_id] = 100
+                    self._broadcast_cue_status(cue_id, 100, force=True)
+                else:
+                    Logger.debug(f'Ignoring stale REMOVE for cue {cue_id} (status={self.cue_status.get(cue_id)}, expected 1)')
+            self.status.remove_currentcue(operation.data['id'])
+            Logger.debug(f"Cue removed from currentcue: {operation.data['id']}")
+
+        elif operation.action == ActionType.UPDATE:
+            # Future: percentage progress updates from loop_cue() during playback.
+            # Throttled by _broadcast_cue_status (Tier 2 / controller-side).
+            # The node-side Tier 1 throttle (CUE_STATUS_UPDATE_HZ) limits NNG traffic.
+            if cue_id:
+                pct = operation.data.get('percentage', 1)
+                self.cue_status[cue_id] = pct
+                self._broadcast_cue_status(cue_id, pct)  # throttled
+            Logger.debug(f"Cue percentage update: {cue_id} = {operation.data.get('percentage')}")
+
+        else:
+            Logger.warning(f'Unknown cue action: {operation.action}')
+
+    def status_operation_callback(self, operation: NodeOperation):
+        """Callback invoked when status updates are received from nodes.
+        
+        Handles script_finished and armed_ready notifications.
+        """
+        Logger.info(f'Status operation received: {operation}')
+        if operation.target == 'script_finished':
+            if operation.data and operation.data.get('running') == 'no':
+                Logger.info('Script finished notification received from node - updating running status')
+                self.set_status('running', 'no')
+        elif operation.target == 'armed_ready':
+            if operation.data and operation.data.get('armed') == 'yes':
+                if self.go_offset is None:
+                    Logger.info('Re-arm after stop - restarting timecode and enabling GO')
+                    self.start_timecode()
+                    self.go_offset = 0
+                else:
+                    Logger.info('Re-arm complete from node - enabling GO')
+                self.set_status('armed', 'yes')
+        elif operation.target == 'nextcue':
+            nextcue_id = operation.data.get('nextcue', '') if operation.data else ''
+            self.set_status('nextcue', nextcue_id)
+            Logger.info(f'Next cue updated: {nextcue_id or "(none)"}')
+        elif operation.target == 'cue_enabled':
+            cue_id = operation.data.get('cue_id') if operation.data else None
+            enabled = operation.data.get('enabled', True) if operation.data else True
+            if cue_id and cue_id in self.cue_enabled_status:
+                self.cue_enabled_status[cue_id] = enabled
+                self._broadcast_cue_enabled(cue_id, enabled)
+                Logger.info(f'Cue {cue_id} enabled status updated from node: {enabled}')
+        else:
+            Logger.debug(f'Unknown status target: {operation.target}')
+
+    #########################
+    # Editor commands
+    #########################
+
+    def editor_command_callback(self, item: dict, context):
+        Logger.debug(f'Received editor command: {item}, with context: {context}')
+        _item_keys = item.keys()
+        if 'value' not in _item_keys:
+            item['value'] = ''
+        if 'action_uuid' not in _item_keys:
+            self.error_to_editor(context, "No action uuid submitted")
+        self.set_editor_request(item['action_uuid'])
+
+        if 'type' in _item_keys:
+            if item['type'] not in ['error', 'initial_settings']:
+                
+                self.set_editor_request('')
+            self.error_to_editor(context, "Response not recognized")
+
+        try:
+            self.handle_editor_command(
+                action = item['action'],
+                value = item['value'], 
+                context = context
+            ) 
+        except Exception as e:
+            Logger.error(f'{type(e)} handling editor command: {e}')
+            
+            request_uuid = self.get_editor_request()
+            self.set_editor_request('')
+            self.error_to_editor(context, value=f"Command {type(e)}: {e}", request_uuid=request_uuid)
+
+    def handle_editor_command(self, action, value, context=None):
+        command_dict = {
+            'project_deploy': partial(self.load_project, deploy_only=True),
+            'project_ready': self.load_project,
+            'hw_discovery': self.hwdiscovery,
+            'nodeconf': self.nodeconf,
+            'go_script': self.go_script,
+            'project_status': self.get_project_status,
+            'project_unload': self.unload_project,
+        }
+        if action in command_dict.keys():
+            result = command_dict[action](value, context)
+            if result:
+                reply_value = result if isinstance(result, dict) else 'OK'
+                self.confirm_to_editor(
+                    context, type=action, value=reply_value
+                )
+                # Clear the editor request after successful confirmation
+                self.set_editor_request('')
+
+        else:
+            raise ValueError(f'Command {action} not recognized')
+        
+    def confirm_to_editor(self, context, type=None, value=None):
+        return_message={
+            'type': type,
+            'value': value,
+            'action_uuid': self.get_editor_request()
+        }
+        Logger.debug(f'Sending confirm to editor: {return_message}')
+
+        try:
+            self.communications_thread.reply_to_editor(return_message, context)
+        except Exception as e:
+            Logger.error(f'{type(e)} confirming to editor: {e}')
+
+    def error_to_editor(self, context, value=None, request_uuid = None, action = None):
+        if not request_uuid:
+            request_uuid = self.get_editor_request()
+        return_message={
+            'type': 'error',
+            'value': value,
+            'action_uuid': request_uuid
+        }
+        if action:
+            return_message['action'] = action
+        Logger.debug(f'Sending error to editor: {return_message}')
+        try:
+            self.communications_thread.reply_to_editor(return_message, context)
+        except Exception as e:
+            Logger.error(f'{type(e)} sending error to editor: {e}')
+        
+    
+    def set_editor_request(self, value):
+        self._editor_request_uuid = value
+
+    def get_editor_request(self):
+        return self._editor_request_uuid
+
+
+    #########################
+    # External services
+    #########################
+
+    def hwdiscovery(self, message: dict, context=None) -> bool:
+        Logger.debug(f'sending HW discovery request: {message}')
+        try:
+            reply = self.communications_thread.request_to_hwdiscovery(message)
+            Logger.debug(f'Received HW discovery reply: {reply}')
+            if 'OK' in reply.values():
+                return True
+            else:
+                return False            
+        except Exception as e:
+            Logger.error(f'{type(e)} sending HW discovery request: {e}')
+            return False
+
+    def nodeconf(self, message: dict, context=None) -> bool:
+        Logger.debug(f'sending nodeconf request: {message}')
+        try:
+            reply = self.communications_thread.request_to_nodeconf(message)
+            Logger.debug(f'Received nodeconf reply: {reply}')
+            if 'OK' in reply.values():
+                return True
+            else:
+                return False            
+        except Exception as e:
+            Logger.error(f'{type(e)} sending nodeconf request: {e}')
+            return False
+
+
+    #########################
+    # Status Updates (stub - OSCQuery removed)
+    #########################
+
+    def set_oscquery_values(self, values: dict):
+        """Stub for OSCQuery value setting - OSCQuery server has been removed.
+        
+        Status updates are now handled via internal state tracking.
+        TODO: Implement WebSocket status push if UI needs real-time status.
+        """
+        for key, value in values.items():
+            Logger.debug(f"Status update (no-op): {key} = {repr(value)}")
+
+    def _collect_cue_ids(self, cuelist) -> list[str]:
+        """Recursively collect all cue IDs from a cuelist (including nested CueLists)."""
+        from cuemsutils.cues import CueList
+        ids = []
+        if hasattr(cuelist, 'contents') and cuelist.contents:
+            for item in cuelist.contents:
+                if item is None:
+                    continue
+                ids.append(item.id)
+                if isinstance(item, CueList):
+                    ids.extend(self._collect_cue_ids(item))
+        return ids
+
+    def _collect_cue_enabled(self, cuelist) -> dict[str, bool]:
+        """Recursively collect cue enabled states from a cuelist."""
+        from cuemsutils.cues import CueList
+        result = {}
+        if hasattr(cuelist, 'contents') and cuelist.contents:
+            for item in cuelist.contents:
+                if item is None:
+                    continue
+                result[item.id] = item.enabled
+                if isinstance(item, CueList):
+                    result.update(self._collect_cue_enabled(item))
+        return result
+
+    def _broadcast_cue_enabled(self, cue_id: str, enabled: bool) -> None:
+        """Broadcast per-cue enabled status to UI at /engine/status/cue_enabled/{uuid}."""
+        if hasattr(self, 'communications_thread') and self.communications_thread \
+                and hasattr(self.communications_thread, 'broadcast_osc'):
+            self.communications_thread.broadcast_osc(
+                f'/engine/status/cue_enabled/{cue_id}', 1 if enabled else 0)
+
+    def _broadcast_cue_status(self, cue_id: str, value: int, force: bool = False) -> None:
+        """Broadcast per-cue status to UI via WebSocket OSC at /engine/status/cue/{uuid}.
+
+        Values: 0=unplayed, 1-99=playing (1 until percentage is enabled), 100=played, -1=error.
+
+        State transitions (force=True: values 0, 1, 100) bypass throttle and broadcast
+        immediately. In-progress percentage updates (2-99) are throttled per-cue to
+        CUE_BROADCAST_MIN_INTERVAL to limit WS traffic even when multiple remote nodes
+        send updates in quick succession (Tier 2 of the two-tier throttle strategy).
+        """
+        if not force:
+            now = time.monotonic()
+            last = self._cue_broadcast_timestamps.get(cue_id, 0)
+            if now - last < self.CUE_BROADCAST_MIN_INTERVAL:
+                return
+            self._cue_broadcast_timestamps[cue_id] = now
+        if hasattr(self, 'communications_thread') and self.communications_thread \
+                and hasattr(self.communications_thread, 'broadcast_osc'):
+            self.communications_thread.broadcast_osc(f'/engine/status/cue/{cue_id}', value)
+
+    def _broadcast_status(self, key: str, value) -> None:
+        """Push status to UI via WebSocket OSC (realtime)."""
+        if hasattr(self, 'communications_thread') and self.communications_thread and hasattr(self.communications_thread, 'broadcast_osc'):
+            self.communications_thread.broadcast_osc(f'/engine/status/{key}', value)
+
+    async def _on_ws_client_connect(self, websocket) -> None:
+        """Send full state dump to a newly connected WebSocket client."""
+        from .osc.WebSocketOscHandler import build_osc_message
+
+        # Engine status
+        for key in ('running', 'armed', 'load', 'nextcue'):
+            val = self.get_status(key)
+            if val is not None:
+                data = build_osc_message(f'/engine/status/{key}', val)
+                if data:
+                    await websocket.send(data)
+
+        # Per-cue playback status
+        for cid, status in self.cue_status.items():
+            data = build_osc_message(f'/engine/status/cue/{cid}', status)
+            if data:
+                await websocket.send(data)
+
+        # Per-cue enabled status
+        for cid, enabled in self.cue_enabled_status.items():
+            data = build_osc_message(
+                f'/engine/status/cue_enabled/{cid}', 1 if enabled else 0)
+            if data:
+                await websocket.send(data)
+
+        Logger.info(f'Late-join state dump sent to new WebSocket client')
+
+    def on_timecode_change(self, value) -> None:
+        """Broadcast timecode to UI as integer ms (whole seconds only), once per second."""
+        try:
+            ms = int(value) if value is not None else 0
+        except (TypeError, ValueError):
+            return
+        current_second = ms // 1000
+        if current_second != self._last_timecode_second:
+            self._last_timecode_second = current_second
+            self._broadcast_status('timecode', current_second * 1000)
+            Logger.debug(f'Timecode broadcast {current_second}s')
+
+    def _clear_playback_state(self):
+        """Clear runtime playback tracking: timestamps, timecode, armed, nextcue."""
+        self._cue_broadcast_timestamps.clear()
+        self._last_timecode_second = -1
+        self._broadcast_status('timecode', 0)
+        self.set_status('armed', 'no')
+        self.set_status('nextcue', '')
+        self.stop_timecode()
+
+    #########################
+    # Project management
+    #########################
+
+    def load_project(self, project_name, context=None, deploy_only=False):
+        # Don't allow loading while script is running
+        if self.get_status('running') == "yes":
+            Logger.warning(f'Cannot load project {project_name} while script is running. Stop first.')
+            return False
+
+        Logger.info(f'Loading project {project_name}')
+        self._clear_playback_state()
+        self.reset_script()
+        
+        if deploy_only:
+            Logger.info(f"Deploy only requested for {project_name}")
+            return True
+        
+        try:
+            self.cm.load_project_config(project_name)
+        except Exception as e:
+            Logger.error(f'Error loading project config: {e}')
+            
+            request_uuid = self.get_editor_request()
+            self.set_editor_request('')
+            self.error_to_editor(context, 
+                f"Project config error: {e}",
+                request_uuid=request_uuid,
+                action='project_ready'
+            )
+            return False
+
+        try:
+            self.read_script(project_name)
+        except Exception as e:
+            Logger.error(f'Error loading project script: {e}')
+            
+            request_uuid = self.get_editor_request()
+            self.set_editor_request('')
+            self.error_to_editor(context, 
+                f"Project script error: {e}",
+                request_uuid=request_uuid,
+                action='project_ready'
+            )
+            return False
+
+        Logger.info(f'Script from {project_name} loaded')
+        self.script.unix_name = project_name
+
+        # Initialise per-cue status: every cue starts as unplayed (0).
+        # Broadcasts one WS message per cue so the UI can populate its cue list.
+        self.cue_status = {cid: 0 for cid in self._collect_cue_ids(self.script.cuelist)}
+        for cid in self.cue_status:
+            self._broadcast_cue_status(cid, 0, force=True)
+        Logger.info(f'Cue status initialised for {len(self.cue_status)} cues')
+
+        # Initialise per-cue enabled status from XML (resets show-time overrides).
+        self.cue_enabled_status = self._collect_cue_enabled(self.script.cuelist)
+        for cid, enabled in self.cue_enabled_status.items():
+            self._broadcast_cue_enabled(cid, enabled)
+        Logger.info(f'Cue enabled status initialised for {len(self.cue_enabled_status)} cues')
+
+        # Update internal status
+        # TODO: send project UUID instead of name for robustness (would break UI contract)
+        self.set_status('load', project_name)
+
+        # Forward load command to NodeEngine via NNG (nodes will arm cues)
+        self._forward_load_to_nodes(project_name)
+
+        # Timecode starts on load; runs until next load or engine shutdown
+        self.start_timecode()
+        self.go_offset = 0  # Enable mtc_callback → on_timecode_change → broadcast
+        # armed=yes is NOT set here -- it's set when NodeEngine reports armed_ready
+        # via status_operation_callback, ensuring cues are actually armed before
+        # the UI shows GO as available
+
+        # Confirm the project is loaded
+        self.set_show_lock_file()
+        Logger.info(f'Project {project_name} loaded')
+        # Note: Don't clear editor_request here - handle_editor_command will clear it after confirmation
+        return True
+
+    def deploy_project(self, project_name):
+        self.load_project(project_name)
+
+    def go_script(self, value, context=None):
+        if self.get_status('armed') != "yes":
+            Logger.warning('Cues not armed. GO not available.')
+            return
+
+        if not self.script:
+            Logger.warning('No script loaded, cannot process GO command.')
+            return
+        
+        self.set_status('running', "yes")
+
+        # Forward GO to NodeEngine via NNG (needed when called from editor;
+        # when called from WebSocket the comms layer also forwards, but the
+        # NodeEngine's run_command is idempotent so a double-call is harmless)
+        self._forward_command_to_nodes('/engine/command/go', value)
+
+        Logger.info(f'GO command processed')
+        return True
+
+    def _setnextcue_handler(self, value):
+        """Handle setnextcue from UI — forward to NodeEngine which owns the pointer."""
+        self._forward_command_to_nodes('/engine/command/setnextcue', value)
+
+    def _cue_enabled_handler(self, value):
+        """Handle cue_enabled toggle from UI.
+
+        Value format: "<cue_id> <0|1>" (space-separated UUID and enabled flag).
+        """
+        if not value or not isinstance(value, str):
+            Logger.warning(f'Invalid cue_enabled value: {repr(value)}')
+            return
+
+        parts = value.split(' ', 1)
+        if len(parts) != 2 or parts[1] not in ('0', '1'):
+            Logger.warning(f'Invalid cue_enabled format (expected "uuid 0|1"): {repr(value)}')
+            return
+
+        cue_id, enabled_str = parts
+        enabled = enabled_str == '1'
+
+        if cue_id not in self.cue_enabled_status:
+            Logger.warning(f'cue_enabled: unknown cue_id {cue_id}')
+            return
+
+        self.cue_enabled_status[cue_id] = enabled
+        self._broadcast_cue_enabled(cue_id, enabled)
+        self._forward_command_to_nodes('/engine/command/cue_enabled', value)
+        Logger.info(f'Cue {cue_id} {"enabled" if enabled else "disabled"}')
+
+    def _forward_command_to_nodes(self, address: str, value) -> None:
+        """Forward a generic command to NodeEngine via NNG."""
+        if not hasattr(self, 'communications_thread') or not self.communications_thread:
+            Logger.warning("Cannot forward command to nodes: communications thread not available")
+            return
+
+        parts = address.strip('/').split('/')
+        command_name = parts[-1] if parts else address
+
+        operation = NodeOperation(
+            type=OperationType.COMMAND,
+            action=ActionType.UPDATE,
+            sender=self.cm.node_conf.get('uuid', 'controller') if hasattr(self, 'cm') and self.cm else 'controller',
+            target=command_name,
+            data={'value': value, 'address': address}
+        )
+
+        try:
+            asyncio.run_coroutine_threadsafe(
+                self.communications_thread.nng_hub.send_operation(operation),
+                self.communications_thread.event_loop
+            )
+            Logger.debug(f"Forwarded command to nodes: {command_name} = {repr(value)}")
+        except Exception as e:
+            Logger.error(f"Error forwarding command to nodes: {e}")
+
+    def stop_script(self, value):
+        """Handle STOP command - stop timecode, update status and forward to nodes."""
+        if self.get_status('running') != "yes":
+            Logger.info('Script not running, nothing to stop.')
+            return
+
+        self.go_offset = None
+        self.set_status('running', "no")
+        self._clear_playback_state()
+
+        # Reset all cue statuses to unplayed (0) and broadcast to UI.
+        for cid in self.cue_status:
+            self.cue_status[cid] = 0
+            self._broadcast_cue_status(cid, 0, force=True)
+
+        self._forward_command_to_nodes('/engine/command/stop', value)
+
+        Logger.info('STOP command processed - timecode stopped; nodes will re-arm')
+        return True
+
+    def get_project_status(self, value, context=None):
+        """Return current project playback status."""
+        running = self.get_status('running') == "yes"
+        return {
+            "status": "running" if running else "none",
+            "project_uuid": str(self.script.id) if running and self.script else ""
+        }
+
+    def unload_project(self, value, context=None):
+        """Unload the current project. Rejects if playback is running."""
+        if self.get_status('running') == "yes":
+            raise RuntimeError("Cannot unload while running. Stop playback first.")
+        self._clear_playback_state()
+        self.reset_script()
+        self.cue_status = {}
+        self.cue_enabled_status = {}
+        self.set_status('load', '')
+        self._forward_command_to_nodes('/engine/command/stop', value)
+        Logger.info('Project unloaded')
+        return True
diff --git a/src/cuemsengine/NodeEngine.py b/src/cuemsengine/NodeEngine.py
new file mode 100644
index 0000000..b78bf38
--- /dev/null
+++ b/src/cuemsengine/NodeEngine.py
@@ -0,0 +1,1033 @@
+from functools import partial
+from time import sleep
+import os
+import subprocess
+import threading
+
+from cuemsutils.cues import CueList, VideoCue, AudioCue, DmxCue
+from cuemsutils.cues.MediaCue import MediaCue
+from cuemsutils.cues.Cue import Cue
+from cuemsutils.log import Logger, logged
+
+from .core.BaseEngine import BaseEngine
+from .cues.CueHandler import CUE_HANDLER
+from .osc.helpers import add_prefix_to_all
+from .tools.CuemsDeploy import CuemsDeploy
+from .tools.PortHandler import PORT_HANDLER
+from .players import AudioClient, DmxClient, VideoClient
+from .players.PlayerHandler import PLAYER_HANDLER
+
+VIDEOCOMPOSER_OSC_PORT_DEFAULT = 7000
+
+
+def _append_output_latency_flag(args, player_conf: dict) -> str:
+    """Append --output-latency-ms <int> to args when the player's
+    settings.xml config has an explicit integer value.
+
+    settings.xml accepts integer (override) or the literal string
+    "auto" (use the binary's built-in default or auto-calibration).
+    xmlschema decodes integers as Python int and "auto" as str.
+    isinstance(value, int) distinguishes reliably; "auto" and None
+    both mean "don't emit the flag". See cuems-utils
+    test_output_latency_ms_type_round_trip for the typing contract.
+
+    args may be None (empty <args/> element decodes to None in xmlschema)
+    or an empty string — normalize both to '' before concatenation so the
+    spawned argv never carries a literal "None" token.
+    """
+    args = args or ''
+    value = player_conf.get('output_latency_ms')
+    if isinstance(value, int):
+        return f'{args} --output-latency-ms {value}'.strip()
+    return args
+
+class NodeEngine(BaseEngine):
+    """
+    This engine manages players for each node
+    
+    Communicates with the ControllerEngine via OSCQuery
+    
+    Interacts with Player objects via OSC
+
+    It is responsible for:
+      - Starting and stopping players
+      - Monitoring player status
+      - Restarting players
+      - Updating player configurations
+      - Handling player failures
+      - Providing a clean interface for starting and stopping players
+      - Providing a clean interface for monitoring player status
+    
+    """
+    def __init__(self, **kwargs):
+        super().__init__(**kwargs)
+        self._command_lock = threading.Lock()
+        self._loading_lock = threading.Lock()
+        self._loading = False
+        self._project_generation: int = 0
+        self.nng_hub_address = f"tcp://{self.controller_ip}:{self.cm.node_conf['nng_hub_port']}"
+        PORT_HANDLER.add_system_ports()
+        if hasattr(self, 'cm'):
+            PORT_HANDLER.add_config_ports(
+                get_config_ports(self.cm.node_conf)
+            )
+            self.deploy_manager = CuemsDeploy(
+                library_path=self.cm.library_path,
+                tmp_path=self.cm.tmp_path
+            )
+            PLAYER_HANDLER.add_media_folder(
+                self.cm.library_path
+            )
+            PLAYER_HANDLER.set_player_endpoints_generator(
+                self.add_player_endpoints,
+                # TODO: Use node host from config
+                prefix = '/players'
+            )
+
+    def start(self):
+        CUE_HANDLER.set_nng_comms(self.nng_hub_address, self.cm.node_uuid)
+        self.set_oscquery_comms()  # Creates command dictionary and OSCQuery client
+        self.set_players()  # Creates player devices - must be before NNG callback
+        self._setup_nng_command_callback()  # Set up NNG command receiving (after players ready)
+        self.mtc_listener.start()
+        super().start()
+    
+    def _setup_nng_command_callback(self):
+        """Set up the callback for receiving commands via NNG from ControllerEngine.
+        
+        This provides push-based command delivery as an alternative to HTTP polling.
+        Commands are received via the NNG bus and routed to the appropriate handlers.
+        """
+        if hasattr(CUE_HANDLER, 'communications_thread') and CUE_HANDLER.communications_thread:
+            CUE_HANDLER.communications_thread.set_command_callback(self._handle_nng_command)
+            Logger.info("NNG command callback registered for NodeEngine")
+        else:
+            Logger.warning("CUE_HANDLER communications thread not available for command callback")
+
+        from .cues.ActionHandler import ACTION_HANDLER
+
+        ACTION_HANDLER.finalize_node_layer_bindings()
+        ACTION_HANDLER.set_result_sink(self._action_result_sink)
+
+
+    def _handle_nng_command(self, command_name: str, value, address: str = None):
+        """Handle a command received via NNG from ControllerEngine.
+        
+        Args:
+            command_name: The command name (e.g., 'go', 'load', 'stop', 'player_control')
+            value: The command value
+            address: The original OSC address (optional)
+        """
+        Logger.info(f"NNG command received: {command_name} = {repr(value)}")
+        
+        if command_name == 'player_control' and address:
+            # Handle player control messages (mixer volumes, video controls, etc.)
+            self._handle_player_control_message(address, value)
+        else:
+            # Handle standard commands (go, load, stop)
+            self.run_command(command_name, value)
+    
+    def _handle_player_control_message(self, address: str, value):
+        """Handle player control messages received via NNG.
+        
+        Routes to appropriate player handlers based on the OSC address.
+        Supports two formats:
+        1. Engine format: /engine/players/<uuid>/<type>/...
+        2. Direct format: /<uuid>/<type>/... (from UI)
+        
+        Args:
+            address: The OSC address
+            value: The value to set
+        """
+        parts = address.strip('/').split('/')
+        
+        # Determine format and extract node_uuid, player_type, path_parts
+        if len(parts) >= 4 and parts[0] == 'engine' and parts[1] == 'players':
+            # Engine format: /engine/players/<node_uuid>/<type>/...
+            node_uuid = parts[2]
+            player_type = parts[3]
+            path_parts = parts[4:] if len(parts) > 4 else []
+        elif len(parts) >= 2:
+            # Direct format: /<node_uuid>/<type>/...
+            node_uuid = parts[0]
+            player_type = parts[1]
+            path_parts = parts[2:] if len(parts) > 2 else []
+        else:
+            Logger.warning(f"Invalid player control address: {address}")
+            return
+        
+        # Only handle messages for this node
+        if node_uuid != self.cm.node_uuid:
+            Logger.debug(f"Ignoring player message for other node: {node_uuid}")
+            return
+        
+        Logger.debug(f"Handling player control: type={player_type}, path={path_parts}, value={value}")
+        
+        # Route to appropriate handler based on player type
+        if player_type == 'video':
+            redirect_video_cmd(path_parts, value)
+        elif player_type == 'audio':
+            CUE_HANDLER.route_audio_message(path_parts, value)
+        elif player_type == 'dmx':
+            CUE_HANDLER.route_dmx_message(path_parts, value)
+        elif player_type == 'audiomixer':
+            # Direct audiomixer command: /<uuid>/audiomixer/<channel>
+            # path_parts[0] is channel (e.g., '0', 'master')
+            self._handle_audiomixer_command(path_parts, value)
+        elif player_type == 'jadeo':
+            # Direct video command: /<uuid>/jadeo/<cmd>
+            redirect_video_cmd(['jadeo'] + path_parts, value)
+        else:
+            Logger.debug(f"Unknown player type in control message: {player_type}")
+    
+    def _handle_audiomixer_command(self, path_parts: list, value):
+        """Handle direct audiomixer OSC command.
+        
+        Args:
+            path_parts: Remaining path parts after /<uuid>/audiomixer/
+                       e.g., ['0'] for channel 0, ['master'] for master
+            value: Volume value (0.0 to 1.0)
+        """
+        if not path_parts:
+            Logger.warning("Empty audiomixer command path")
+            return
+        
+        channel = path_parts[0]
+        # jack-volume expects /audiomixer/<client_name>/<channel>
+        mixer_cmd = f'/audiomixer/0_mixer/{channel}'
+        
+        try:
+            PLAYER_HANDLER.get_audio_mixer_client().set_value(mixer_cmd, value)
+            Logger.debug(f"Audiomixer command: {mixer_cmd} = {value}")
+        except Exception as e:
+            Logger.error(f"Error sending audiomixer command: {e}")
+        
+    @logged
+    def stop(self):
+        self.stop_requested = True
+        self.stop_node_engine()
+        super().stop()
+
+    def stop_node_engine(self):
+        """Stop the NodeEngine elements"""
+        CUE_HANDLER.disarm_all()
+        self.stop_video_devs()
+
+    def stop_video_devs(self):
+        try:
+            self.unload_video_devs()
+            Logger.info('Video devs stopped')
+        except Exception as e:
+            Logger.warning(f'Exception raised when stopping video devs: {e}')
+
+    def quit_video_devs(self):
+        try:
+            PLAYER_HANDLER.quit_videocomposer()
+            Logger.info('Videocomposer quit successfully')
+        except Exception as e:
+            Logger.exception(e)
+
+    def unload_video_devs(self):
+        try:
+            PLAYER_HANDLER.reset_videocomposer()
+            Logger.info('Videocomposer reset successfully')
+        except Exception as e:
+            Logger.exception(e)
+
+    #########################
+    # OSCQuery logic
+    #########################
+    def add_player_endpoints(self, cue: Cue, prefix: str = '/players'):
+        """Add player endpoints from a cue to the OSCQuery server
+        
+        Args:
+            cue: The cue containing the player client
+            prefix: Prefix to add to all endpoint paths (default: '/players')
+        """
+        if not hasattr(cue, '_osc') or cue._osc is None:
+            Logger.warning(f'Cue {cue.id} has no OSC client, cannot add endpoints')
+            return
+        
+        try:
+            # Get endpoints from the player client
+            endpoints = cue._osc.get_endpoints()
+            if not endpoints:
+                Logger.warning(f'No endpoints found for cue {cue.id}')
+                return
+            
+            # Add prefix to all endpoints
+            prefixed_endpoints = add_prefix_to_all(endpoints, f"{prefix}/{self.cm.node_uuid}/{cue.id}")
+            
+            # Add endpoints to OSCQuery server
+            if hasattr(self, 'oscquery_server') and self.oscquery_server:
+                self.oscquery_server.add_endpoints(prefixed_endpoints)
+                Logger.debug(f'Added {len(prefixed_endpoints)} endpoints for cue {cue.id}')
+            else:
+                Logger.warning('OSCQuery server not initialized, cannot add endpoints')
+        except Exception as e:
+            Logger.error(f'Error adding player endpoints for cue {cue.id}: {e}')
+            Logger.exception(e)
+
+    def set_oscquery_comms(self):
+        """Set up the command dictionary for the NodeEngine.
+        
+        Commands are received via NNG from ControllerEngine.
+        OSCQuery client is no longer used since pyossia server was removed.
+        """
+        self.commands_dict = {
+            'deploy': self.ready_project,
+            'load': self.load_project,
+            'loadcue': None,
+            'go': self.go_script,
+            'gocue': self.go_script,
+            'pause': None,
+            'resetall': None,
+            'stop': self.stop_playback,
+            'setnextcue': self.set_next_cue,
+            'cue_enabled': self._handle_cue_enabled,
+            'test': None,
+            'unload': None,
+            'update': None,
+        }
+
+    def route_message(self, parameter, value):
+        # Exclude 'engine' common node
+        path_elements = str(parameter.node).split('/')[2:]
+        if path_elements[0] == 'command':
+            self.run_command(path_elements[1], value)
+        elif path_elements[0] == 'status':
+            Logger.debug(f'Status update received: {path_elements[1]} = {repr(value)}')
+        elif path_elements[0] == 'players':
+            # Exclude other nodes' players
+            if path_elements[1] != self.cm.node_uuid:
+                Logger.debug(f'Ignoring player message for other node: {path_elements[1]}')
+                return
+            # Route the message to the appropriate player handler
+            if path_elements[2] == 'video':
+                redirect_video_cmd(path_elements[3:], value)
+            if path_elements[2] == 'audio':
+                CUE_HANDLER.route_audio_message(path_elements[3:], value)
+            if path_elements[2] == 'dmx':
+                CUE_HANDLER.route_dmx_message(path_elements[3:], value)
+        else:
+            Logger.debug(f'Recieved unused OSCQuery path: {str(parameter.node)}')
+            return
+
+    def run_command(self, command, value):
+        with self._command_lock:
+            Logger.debug(f'NodeEngine executing command: {command}({repr(value)})')
+            if command in self.commands_dict.keys():
+                handler = self.commands_dict[command]
+                if handler is not None:
+                    handler(value)
+                    return True
+                else:
+                    Logger.warning(f'Command {command} has no handler')
+                    return False
+            else:
+                Logger.error(f'Command {command} not found')
+                return False
+
+    #########################
+    # Player logic
+    #########################
+    def set_players(self):
+        self.set_video_players()
+        self.set_audio_players()
+        self.set_dmx_players()
+
+    # Audio functions
+    def set_audio_players(self):
+        """Set the audio players and audio mixer"""
+        # Initialize the audio mixer for this node
+        if self.cm.node_hw_outputs.get('audio_outputs'):
+            audio_outputs = self.cm.node_hw_outputs['audio_outputs']
+            Logger.info(f'Initializing audio mixer with {len(audio_outputs)} outputs')
+            
+            # Assign a port for the audio mixer
+            mixer_id = '0' # TODO: make this a unique identifier for the mixer
+            mixer_ports = PORT_HANDLER.assign_ports(['audio_mixer'])
+            PORT_HANDLER.add_config_ports(mixer_ports)
+            # Start the audio mixer
+            try:
+                PLAYER_HANDLER.start_audio_mixer(
+                    audio_outputs=audio_outputs,
+                    port=mixer_ports['audio_mixer'],
+                    mixer_id=mixer_id,
+                    path=self.cm.node_conf['audiomixer']['path'],
+                    args=self.cm.node_conf['audiomixer']['args']
+                )
+                Logger.info(f'Audio mixer started successfully for mixer {mixer_id}')
+                # Register mixer with Controller via NNG
+                try:
+                    CUE_HANDLER.communications_thread.add_player(f'audiomixer_{mixer_id}', None, timeout=0.1)
+                    Logger.info(f'Audio mixer {mixer_id} registered with Controller')
+                except Exception as e:
+                    Logger.warning(f'Could not register mixer with Controller: {e}')
+            except Exception as e:
+                Logger.error(f'Error starting audio mixer: {e}')
+                Logger.exception(e)
+        else:
+            Logger.info('No audio outputs detected, skipping audio mixer initialization')
+        
+        # Build audio output lookup keyed by <id> (mirrors video output pattern)
+        audio_outputs = {}
+        for port_type_dict in self.cm.node_mappings.get('audio', []):
+            for port_type_list in port_type_dict.values():
+                for port in port_type_list:
+                    for _, output_data in port.items():
+                        output_id = str(output_data.get('id', output_data['name']))
+                        mappings = output_data.get('mappings', [])
+                        mapped_to = mappings[0]['mapped_to'] if mappings else output_data['name']
+                        audio_outputs[output_id] = {
+                            'name': output_data['name'],
+                            'mapped_to': mapped_to,
+                        }
+        PLAYER_HANDLER.set_audio_outputs(audio_outputs)
+
+        # Set the audio player generator. Append --output-latency-ms
+        # from settings.xml when the operator supplied an integer
+        # override (isinstance int); "auto" or absent ⇒ audioplayer
+        # runs its Phase-3 JACK-latency query path.
+        audio_args = _append_output_latency_flag(
+            self.cm.node_conf['audioplayer']['args'],
+            self.cm.node_conf['audioplayer'],
+        )
+        PLAYER_HANDLER.set_audio_output_generator(
+            self.cm.node_conf['audioplayer']['path'],
+            audio_args,
+        )
+
+    # Video functions
+    def set_video_players(self):
+        """Set the video players"""
+        Logger.info(f'Setting video players with: {self.cm.node_conf["videoplayer"]}')
+        if not self.cm.node_hw_outputs['video_outputs']:
+            Logger.info('No video outputs detected.')
+            return
+        
+        vc_conf = self.cm.node_conf.get('videoplayer', {})
+        osc_video_port = int(vc_conf.get('osc_port', VIDEOCOMPOSER_OSC_PORT_DEFAULT))
+        PLAYER_HANDLER.set_video_client(osc_video_port)
+        PORT_HANDLER.add_config_ports({'videocomposer': osc_video_port})
+        
+        # Build video output configs from node_mappings
+        # Keys are <id> (stable integer, what cues reference via output_name)
+        # <name> is a human label, <mapped_to> is the DRM connector for videocomposer
+        video_outputs = {}
+        for port_type_dict in self.cm.node_mappings.get('video', []):
+            for port_type_list in port_type_dict.values():
+                for port in port_type_list:
+                    for _, output_data in port.items():
+                        output_id = str(output_data.get('id', output_data['name']))
+                        name = output_data['name']
+                        region = output_data.get('canvas_region', {})
+                        mappings = output_data.get('mappings', [])
+                        mapped_to = mappings[0]['mapped_to'] if mappings else name
+                        x = region.get('x', 0)
+                        y = region.get('y', 0)
+                        width = region.get('width', 1920)
+                        height = region.get('height', 1080)
+                        video_outputs[output_id] = {
+                            'name': name,
+                            'mapped_to': mapped_to,
+                            'x': x,
+                            'y': y,
+                            'width': width,
+                            'height': height,
+                            'canvas_region': region if region else {'x': x, 'y': y, 'width': width, 'height': height},
+                        }
+        PLAYER_HANDLER.start_video_outputs(video_outputs)
+
+
+    # DMX functions
+    def set_dmx_players(self):
+        """Set the DMX player for this node and register its endpoints."""
+        # Assign a port for the DMX player
+        dmx_ports = PORT_HANDLER.assign_ports(['dmx_player'])
+        PORT_HANDLER.add_config_ports(dmx_ports)
+
+        # Get node UUID for player naming
+        node_uuid = self.cm.node_conf.get('uuid', 'default_node')
+
+        # Start the DMX player
+        try:
+            # Append --output-latency-ms from settings.xml when an
+            # integer override is present. Dmx has no "auto" form —
+            # absent ⇒ dmxplayer's 35 ms Phase-5A default stands.
+            dmx_args = _append_output_latency_flag(
+                self.cm.node_conf['dmxplayer']['args'],
+                self.cm.node_conf['dmxplayer'],
+            )
+            PLAYER_HANDLER.start_dmx_player(
+                port=dmx_ports['dmx_player'],
+                node_uuid=node_uuid,
+                path=self.cm.node_conf['dmxplayer']['path'],
+                args=dmx_args,
+            )
+            try:
+                CUE_HANDLER.communications_thread.add_player(f'dmxplayer_{node_uuid}', None, timeout=0.1)
+            except Exception:
+                pass  # Ignore - NNG is for distributed nodes
+            Logger.info(f'DMX player started successfully for node {node_uuid}')
+        except Exception as e:
+            Logger.error(f'Error starting DMX player: {e}')
+            Logger.exception(e)
+            return
+        
+    def quit_dmx_devs(self):
+        """Quit the DMX player if it exists"""
+        dmx_client = PLAYER_HANDLER.get_dmx_player_client()
+        if dmx_client:
+            try:
+                dmx_client.set_value('/quit', 1)
+            except Exception as e:
+                Logger.exception(e)
+        CUE_HANDLER.communications_thread.remove_player(f'dmxplayer_{self.cm.node_uuid}')
+
+
+    #########################
+    # Project logic
+    #########################
+    def ready_project(self, project):
+        """Prepare the project to be played"""
+        self.deploy_project(project)
+        self.cm.load_project_config(project)
+        self.read_script(project)
+        self.deploy_media(project)
+        self.ensure_video_indexes()
+        self.outputs_map = self.map_cue_outputs()
+        PLAYER_HANDLER.set_outputs_map(self.outputs_map)
+        PORT_HANDLER.clean_random_ports()
+
+    def map_cue_outputs(self, cuelist: CueList = None):
+        """Load the output mappings for the project"""
+        outputs_map = {}
+        if cuelist is None:
+            cuelist = self.script.cuelist
+        for cue in cuelist.contents:
+            if isinstance(cue, CueList):
+                outputs_map.update(self.map_cue_outputs(cue))
+            elif not isinstance(cue, MediaCue):
+                continue
+
+            outputs = [x[1] for x in cue.get_all_output_names() if x[0] == self.cm.node_uuid]
+            if outputs:
+                outputs_map[cue.id] = outputs
+        Logger.debug(f'Outputs map: {outputs_map}')
+        return outputs_map
+
+    def load_project(self, project):
+        """Load the project files to the node"""
+        with self._loading_lock:
+            if self._loading:
+                Logger.warning(f'Load already in progress, ignoring duplicate load of {project}')
+                return
+            self._loading = True
+
+        try:
+            return self._load_project_inner(project)
+        finally:
+            with self._loading_lock:
+                self._loading = False
+
+    def _load_project_inner(self, project):
+        # Don't allow loading while script is running
+        if self.get_status('running') == "yes":
+            Logger.warning(f'Cannot load project {project} while script is running. Stop first.')
+            return
+
+        # Stop any running cue threads from the previous project first,
+        # so they can't interfere with cleanup (same logic as stop_playback).
+        CUE_HANDLER.stop_all_cues()
+
+        # DMX: stop following MTC, blackout all universes.
+        dmx_client = PLAYER_HANDLER.get_dmx_player_client()
+        if dmx_client:
+            try:
+                dmx_client.disable_mtcfollow()
+            except Exception as e:
+                Logger.warning(f'DMX disable mtcfollow failed: {e}')
+            try:
+                dmx_client.send_blackout()
+            except Exception as e:
+                Logger.warning(f'DMX blackout failed: {e}')
+
+        # Video: reset videocomposer (remove all layers, cancel loads, reset master).
+        self.unload_video_devs()
+
+        # Audio: reset mixer volumes, kill all players, clean up JACK.
+        mixer_client = PLAYER_HANDLER.get_audio_mixer_client()
+        if mixer_client:
+            try:
+                mixer_client.reset_volumes()
+            except Exception as e:
+                Logger.warning(f'JACK volume reset failed: {e}')
+        PLAYER_HANDLER.kill_all_audio_players()
+        PLAYER_HANDLER.kill_orphaned_audio_processes()
+        PLAYER_HANDLER.cleanup_zombie_jack_clients()
+
+        # Disarm all cues from the previous project.
+        CUE_HANDLER.disarm_all()
+        
+        # Obtain the project files (this replaces self.script with new project)
+        self.ready_project(project)
+        
+        # Prepare the script to be played (arms new cues)
+        self.ready_script()
+
+        # Start cue dependencies
+        # self.set_players()
+
+        # Confirm the project is loaded
+        self.set_show_lock_file()
+        self.script.unix_name = project
+        self.set_status('load', project)
+        Logger.info(f'Project {project} loaded')
+
+        # Notify Controller that arming is complete (GO button can go green)
+        try:
+            from .comms.NodesHub import NodeOperation, OperationType, ActionType
+            operation = NodeOperation(
+                type=OperationType.STATUS,
+                action=ActionType.UPDATE,
+                sender=self.cm.node_uuid,
+                target='armed_ready',
+                data={'armed': 'yes'}
+            )
+            CUE_HANDLER.communications_thread.send_operation(operation, timeout=0.1)
+            Logger.debug('Notified Controller that arming after load is complete')
+        except Exception as e:
+            Logger.warning(f'Could not notify Controller of armed_ready: {e}')
+
+        # Broadcast initial nextcue to UI
+        self._broadcast_nextcue()
+
+        return True
+
+    def deploy_project(self, project):
+        """Deploy the project files to the node"""
+        self.deploy_manager.sync_files(project, 'project')
+
+    def deploy_media(self, project):
+        """Deploy the media files (and their .idx sidecar indexes) to the node"""
+        if not self.script:
+            Logger.error('No script loaded')
+            return
+        file_names = self.script.get_own_media_filenames(config=self.cm)
+        if len(file_names) == 0:
+            Logger.info('No media files to deploy')
+            return
+        # Also include .idx sidecar files for video assets (rsync silently
+        # skips any entry that does not exist on the source, so this is safe
+        # even when the index has not been created yet).
+        video_exts = {'.mp4', '.mov', '.avi', '.mkv', '.mpg'}
+        idx_names = [
+            f'indexes/{name}.idx'
+            for name in file_names
+            if os.path.splitext(name)[1].lower() in video_exts
+        ]
+        self.deploy_manager.sync_files(project, 'media', file_names + idx_names)
+
+    def ensure_video_indexes(self):
+        """Run cuems-videoindexer on any video files that are missing a .idx sidecar.
+
+        This is a safety net for files that were copied manually or deployed to a
+        node that never ran the editor upload hook. For normally-uploaded files the
+        index was already created by the editor and this is a no-op.
+        """
+        if not self.script:
+            return
+        file_names = self.script.get_own_media_filenames(config=self.cm)
+        video_exts = {'.mp4', '.mov', '.avi', '.mkv', '.mpg'}
+        unindexed = []
+        for name in file_names:
+            ext = os.path.splitext(name)[1].lower()
+            if ext not in video_exts:
+                continue
+            full_path = PLAYER_HANDLER.media_path(name)
+            idx_dir = os.path.join(os.path.dirname(full_path), 'indexes')
+            idx_path = os.path.join(idx_dir, os.path.basename(full_path) + '.idx')
+            if not os.path.exists(idx_path):
+                unindexed.append(full_path)
+        if unindexed:
+            Logger.info(f'ensure_video_indexes: indexing {len(unindexed)} video(s) missing .idx')
+            try:
+                subprocess.run(['cuems-videoindexer'] + unindexed, timeout=600)
+            except Exception as e:
+                Logger.warning(f'ensure_video_indexes: indexer failed: {e}')
+
+    #########################
+    # Nextcue
+    #########################
+    def _broadcast_nextcue(self):
+        """Send the current next_cue_pointer UUID to the Controller via NNG."""
+        cue_id = self.next_cue_pointer.id if self.next_cue_pointer else ""
+        try:
+            CUE_HANDLER.communications_thread.update_nextcue(cue_id, timeout=0.1)
+            Logger.debug(f'Broadcast nextcue: {cue_id or "(none)"}')
+        except Exception as e:
+            Logger.warning(f'Could not broadcast nextcue: {e}')
+
+    def _arm_with_enabled_guard(self, cue, project_gen: int):
+        """Arm a cue and disarm if it was disabled or project changed while arming.
+
+        Runs in a daemon thread. After arm() completes, re-checks
+        cue.enabled and project generation to handle races where:
+        - A disable command arrived while arm_cue() was loading media
+        - A stop/reload invalidated this project's cues
+        """
+        if self._project_generation != project_gen:
+            Logger.info(f'Aborting arm of {cue.id} — project generation changed')
+            return
+        CUE_HANDLER.arm(cue, init=True)
+        # If project changed during arm, disarm the stale cue.
+        if self._project_generation != project_gen:
+            if CUE_HANDLER.find_armed_cue(cue):
+                CUE_HANDLER.disarm(cue)
+            Logger.info(f'Disarmed cue {cue.id} — project changed during async arm')
+            return
+        # If cue was disabled while we were arming, disarm now.
+        if not cue.enabled and CUE_HANDLER.find_armed_cue(cue):
+            CUE_HANDLER.disarm(cue)
+            Logger.info(f'Disarmed cue {cue.id} — disabled during async arm')
+
+    def _action_result_sink(self, outcome: dict):
+        """Custom result sink for ActionHandler — extends default with cue_enabled sync."""
+        from .cues.ActionHandler import ACTION_HANDLER
+        # Always run default behavior (sends action_cue_outcome via NNG)
+        ACTION_HANDLER._default_result_sink(outcome)
+
+        # If an enable/disable action was applied, notify Controller
+        action_type = outcome.get('action_type')
+        status = outcome.get('status')
+        if action_type in ('enable', 'disable') and status == 'applied':
+            target_id = outcome.get('target_id')
+            if target_id:
+                self._notify_cue_enabled(target_id, action_type == 'enable')
+
+    def _notify_cue_enabled(self, cue_id: str, enabled: bool):
+        """Send cue enabled status to Controller via NNG."""
+        from .comms.NodesHub import NodeOperation, OperationType, ActionType
+        try:
+            operation = NodeOperation(
+                type=OperationType.STATUS,
+                action=ActionType.UPDATE,
+                sender=self.cm.node_uuid if hasattr(self, 'cm') and self.cm else 'node',
+                target='cue_enabled',
+                data={'cue_id': cue_id, 'enabled': enabled}
+            )
+            CUE_HANDLER.communications_thread.send_operation(operation, timeout=0.1)
+        except Exception as e:
+            Logger.warning(f'Could not notify cue_enabled: {e}')
+
+    def set_next_cue(self, value):
+        """Handle setnextcue command from the UI — override next_cue_pointer."""
+        if not self.script:
+            Logger.warning('No script loaded, cannot set next cue.')
+            return
+        cue = self.script.find(value)
+        if cue:
+            self.next_cue_pointer = cue
+            if not CUE_HANDLER.find_armed_cue(cue):
+                Logger.info(f'Re-arming cue {cue.id} selected as next cue')
+                CUE_HANDLER.arm(cue, init=True)
+            CUE_HANDLER._arm_ahead(cue)  # extend window from selected cue
+            self._broadcast_nextcue()
+            Logger.info(f'Next cue overridden by UI: {value}')
+        else:
+            Logger.warning(f'setnextcue: cue {value} not found in script')
+
+    def _handle_cue_enabled(self, value):
+        """Handle cue_enabled toggle from Controller.
+
+        Value format: "<cue_id> <0|1>" (space-separated UUID and enabled flag).
+        """
+        if not self.script:
+            Logger.warning('No script loaded, cannot toggle cue enabled')
+            return
+
+        if not value or not isinstance(value, str):
+            Logger.warning(f'Invalid cue_enabled value: {repr(value)}')
+            return
+
+        parts = value.split(' ', 1)
+        if len(parts) != 2 or parts[1] not in ('0', '1'):
+            Logger.warning(f'Invalid cue_enabled format: {repr(value)}')
+            return
+
+        cue_id, enabled_str = parts
+        enabled = enabled_str == '1'
+
+        cue = self.script.find(cue_id)
+        if not cue:
+            Logger.warning(f'cue_enabled: cue {cue_id} not found in script')
+            return
+
+        cue.enabled = enabled
+
+        if not enabled:
+            # Disarm only if armed and NOT currently playing.
+            # A playing cue has a running go thread (_go_generation > 0) and is still loaded.
+            is_playing = (getattr(cue, '_go_generation', 0) > 0
+                          and getattr(cue, 'loaded', False))
+            if CUE_HANDLER.find_armed_cue(cue) and not is_playing:
+                CUE_HANDLER.disarm(cue)
+                Logger.info(f'Disarmed disabled cue {cue_id}')
+            # Recalculate next_cue_pointer if the disabled cue was next
+            if self.next_cue_pointer and self.next_cue_pointer.id == cue_id:
+                self.next_cue_pointer = cue.get_next_cue()
+                self._broadcast_nextcue()
+                Logger.info(f'Next cue was disabled, advanced to {self.next_cue_pointer.id if self.next_cue_pointer else "none"}')
+        else:
+            # Re-arm in a daemon thread to avoid blocking _command_lock
+            # (arm() is slow — media loading, process spawning).
+            if cue._local and not CUE_HANDLER.find_armed_cue(cue):
+                gen = self._project_generation
+                threading.Thread(
+                    target=self._arm_with_enabled_guard,
+                    args=(cue, gen),
+                    daemon=True,
+                    name=f'ReArm:{cue_id}'
+                ).start()
+                Logger.info(f'Re-arming enabled cue {cue_id} (async)')
+
+        self._notify_cue_enabled(cue_id, enabled)
+        Logger.info(f'Cue {cue_id} set to {"enabled" if enabled else "disabled"}')
+
+    #########################
+    # Script logic
+    #########################
+    def ready_script(self):
+        """Check if the script is ready to be played"""
+        if not self.script:
+            Logger.warning('No script loaded, cannot process GO command.')
+            return
+        
+        self.ongoing_cue = None
+        self.next_cue_pointer = None
+        self.go_offset = 0
+        self._project_generation += 1  # Abort in-flight daemon arm threads
+        self.unload_video_devs()
+        CUE_HANDLER.disarm_all()
+        
+        # Reset mixer volumes to default when preparing script
+        mixer_client = PLAYER_HANDLER.get_audio_mixer_client()
+        if mixer_client:
+            mixer_client.reset_volumes()
+        
+        self.initial_cuelist_process()
+
+        # Set initial nextcue to the first enabled cue in the script
+        if self.script.cuelist.contents:
+            first_enabled = None
+            for c in self.script.cuelist.contents:
+                if c.enabled:
+                    first_enabled = c
+                    break
+            self.next_cue_pointer = first_enabled
+
+        Logger.info(f'Script {self.script.name} loaded and ready to be played')
+
+    def go_script(self, value):
+        if not self.script:
+            Logger.warning('No script loaded, cannot process GO command.')
+            return
+
+        if not self.with_mtc:
+            Logger.warning('No MTC listener, cannot process GO command.')
+            return
+
+        # Determine the cue to go
+        if not self.ongoing_cue:
+            # First GO - use next_cue_pointer (may have been overridden by setnextcue)
+            cue_to_go = self.next_cue_pointer or self.script.cuelist.contents[0]
+            Logger.info(f'GO command received. Starting script {self.script.name}')
+        else:
+            # Successive GO - advance to next cue
+            if self.next_cue_pointer:
+                cue_to_go = self.next_cue_pointer
+                Logger.info(f'GO command received. Advancing to next cue: {cue_to_go.id}')
+            else:
+                # No next cue - script has finished. Do not stop timecode or reset state.
+                Logger.info('No more cues. Press STOP to restart.')
+                return
+
+        if not cue_to_go._local:
+            Logger.info(f'Actual cue outside node space. CUE : {cue_to_go.id}')
+            return
+
+        if not cue_to_go.enabled:
+            Logger.info(f'Cue {cue_to_go.id} is disabled, advancing to next enabled cue')
+            self.next_cue_pointer = cue_to_go.get_next_cue()
+            self._broadcast_nextcue()
+            return
+
+        if not CUE_HANDLER.find_armed_cue(cue_to_go):
+            Logger.info(f'Cue {cue_to_go.id} not armed, re-arming before GO')
+            CUE_HANDLER.arm(cue_to_go, init=True)
+            if not CUE_HANDLER.find_armed_cue(cue_to_go):
+                Logger.error(f'Failed to re-arm cue {cue_to_go.id}, cannot GO')
+                return
+
+        # Update state
+        self.set_status('running', "yes")
+        self.ongoing_cue = cue_to_go
+        
+        # Start the cue
+        main_thread = CUE_HANDLER.go(
+            cue_to_go,
+            self.mtc_listener
+        )
+        
+        # Update next cue pointer
+        self.next_cue_pointer = self.ongoing_cue.get_next_cue()
+        self.go_offset = self.mtc_listener.main_tc.milliseconds
+
+        # Broadcast nextcue to UI
+        self._broadcast_nextcue()
+
+        Logger.info(f'Cue {cue_to_go.id} started. Next cue: {self.next_cue_pointer.id if self.next_cue_pointer else "none"}')
+
+    def stop_playback(self, value=None):
+        """Stop playback, full cleanup, then re-arm so GO is available again.
+        
+        Does the cleanup that ready_script() doesn't handle (DMX blackout,
+        disconnect video, kill audio), then delegates reset + re-arm to
+        ready_script(). Notifies Controller when armed (GO button green).
+        """
+        Logger.info('STOP command received. Stopping playback.')
+        
+        self.set_status('running', "no")
+
+        # Signal all running cue threads to stop immediately.
+        # Must happen BEFORE blackout/reset so loop_cue threads don't
+        # re-push DMX frames or send /visible after cleanup.
+        CUE_HANDLER.stop_all_cues()
+        sleep(0.05)  # 50ms — loop_cue polls every 20ms
+
+        # DMX: disable MTC following first (freezes the playhead so queued
+        # scenes can't fire), then blackout via OLA for instant visual reset.
+        dmx_client = PLAYER_HANDLER.get_dmx_player_client()
+        if dmx_client:
+            try:
+                dmx_client.disable_mtcfollow()
+            except Exception as e:
+                Logger.warning(f'DMX disable mtcfollow failed: {e}')
+            try:
+                dmx_client.send_blackout()
+            except Exception as e:
+                Logger.warning(f'DMX blackout failed: {e}')
+        
+        # Unload all video layers (instant visual blackout)
+        self.unload_video_devs()
+        
+        # Kill all audio players (ready_script does not do this)
+        PLAYER_HANDLER.kill_all_audio_players()
+        PLAYER_HANDLER.cleanup_zombie_jack_clients()
+
+        # Reset state + disarm + volume reset + re-arm cues
+        if self.script:
+            self.ready_script()
+            Logger.info(f'Project {self.script.name} reset and ready for GO.')
+            
+            # Notify Controller that re-arm is complete (GO button can go green)
+            try:
+                from .comms.NodesHub import NodeOperation, OperationType, ActionType
+                operation = NodeOperation(
+                    type=OperationType.STATUS,
+                    action=ActionType.UPDATE,
+                    sender=self.cm.node_uuid,
+                    target='armed_ready',
+                    data={'armed': 'yes'}
+                )
+                CUE_HANDLER.communications_thread.send_operation(operation, timeout=0.1)
+                Logger.debug('Notified Controller that re-arm is complete')
+            except Exception as e:
+                Logger.warning(f'Could not notify Controller of armed_ready: {e}')
+
+            # Broadcast nextcue (reset to first cue after stop)
+            self._broadcast_nextcue()
+        else:
+            Logger.info('Playback stopped (no script loaded).')
+        
+        Logger.info('Playback stopped.')
+
+
+## MISCELLANEOUS FUNCTIONS ##
+
+# helper functions
+def is_int(value: any) -> bool:
+    """Check if a value is an integer"""
+    try:
+        int(value)
+        return True
+    except ValueError:
+        return False
+
+def get_config_ports(node_conf: dict) -> dict:
+    """Create a dict of ports from the config"""
+    k = [i for i in node_conf.keys() if 'port' in i and is_int(node_conf[i])]
+    v = [int(node_conf[i]) for i in k]
+    return dict(zip(k, v))
+
+
+def redirect_audio_cmd(path_parts: list[str], value: str) -> None:
+    """Redirect the audio command to the audio player"""
+    if path_parts[0] == 'mixer':
+        redirect_audio_mixer_cmd(path_parts[1:], value)
+    elif path_parts[0] == 'cue':
+        redirect_audio_player_cmd(path_parts[1:], value)
+    else:
+        Logger.error(f'Invalid audio command: {path_parts}')
+        return
+
+def redirect_audio_mixer_cmd(path_parts: list[str], value: str) -> None:
+    """Redirect the audio mixer command to the audio mixer
+     Follows the logic:
+     <output_index>/master/volume -> /audiomixer/0_mixer/master
+     <output_index>/0/volume -> /audiomixer/0_mixer/0
+     <output_index>/1/volume -> /audiomixer/0_mixer/1
+     ...
+    Args:
+        path_parts: List of path parts
+        value: Value to set
+    """
+    output_index, channel, _ = path_parts
+    mixer_cmd = f'/audiomixer/0_mixer/{channel}'
+    PLAYER_HANDLER.get_audio_mixer_client().set_value(mixer_cmd, value)
+
+def redirect_audio_player_cmd(path_parts: list[str], value: str) -> None:
+    """Redirect the audio mixer command to the audio mixer
+     Follows the logic:
+     <cue_uuid>/master/volume -> /volmaster
+     <cue_uuid>/0/volume -> /vol0
+     <cue_uuid>/1/volume -> /vol1
+     ...
+    
+    Args:
+        path_parts: List of path parts
+        value: Value to set
+    """
+    cue_uuid, channel, _ = path_parts
+    audio_cmd = f'/vol{channel}'
+    cue = CUE_HANDLER.get_armed_cue(cue_uuid)
+    if not cue:
+        Logger.error(f'Cue {cue_uuid} not found')
+        return
+    client: AudioClient = cue._osc
+    client.set_value(audio_cmd, value)
+
+def redirect_dmx_cmd(path_parts: list[str], value: str) -> None:
+    """Redirect the DMX command to the DMX player"""
+    dmx_index = path_parts.index('mixer') + 1 # +1 to skip the 'mixer' keyword
+    dmx_cmd = '/' + '/'.join(path_parts[dmx_index:])
+    client: DmxClient = PLAYER_HANDLER.get_dmx_player_client()
+    client.set_value(dmx_cmd, value)
+
+def redirect_video_cmd(path_parts: list[str], value: str) -> None:
+    """Redirect the video command to the video client"""
+    videocomposer_index = path_parts.index('videocomposer')
+    videocomposer_cmd = '/' + '/'.join(path_parts[videocomposer_index:])
+    client: VideoClient = PLAYER_HANDLER.get_video_client()
+    client.set_value(videocomposer_cmd, value)
diff --git a/src/cuemsengine/__init__.py b/src/cuemsengine/__init__.py
new file mode 100644
index 0000000..d846175
--- /dev/null
+++ b/src/cuemsengine/__init__.py
@@ -0,0 +1,10 @@
+__version__ = "0.1.0rc1"
+
+from .ControllerEngine import ControllerEngine
+from .NodeEngine import NodeEngine
+
+
+__all__ = [
+    'ControllerEngine',
+    'NodeEngine'
+]
diff --git a/src/cuemsengine/comms/AsyncCommsThread.py b/src/cuemsengine/comms/AsyncCommsThread.py
new file mode 100644
index 0000000..f442ac8
--- /dev/null
+++ b/src/cuemsengine/comms/AsyncCommsThread.py
@@ -0,0 +1,241 @@
+import asyncio
+from threading import Thread
+from typing import Any, Callable, List, Optional
+
+from cuemsutils.log import Logger
+TIMEOUT = 15  # seconds
+
+class AsyncCommsThread(Thread):
+    """Base class for asynchronous communication threads.
+    
+    This class extends Thread to run an asyncio event loop in a separate daemon
+    thread. Subclasses must implement `create_all_tasks()` to define the async
+    tasks that will be executed concurrently.
+    
+    The event loop runs in the background thread and can be safely accessed from
+    other threads using `run_coroutine()`.
+    
+    Attributes:
+        thread_name (str): Base name for the thread.
+        name (str): Full thread name with 'AsyncComms-' prefix.
+        timeout (float): Default timeout in seconds for coroutine execution.
+        stop_requested (bool): Flag indicating whether thread should stop.
+        send_contexts (List): List of send contexts (subclass-specific).
+        event_loop (asyncio.AbstractEventLoop): The asyncio event loop running
+            in this thread. None until `run()` is called.
+    
+    Example:
+        Subclass implementation:
+        
+        ```python
+        class MyAsyncComms(AsyncCommsThread):
+            async def my_task(self):
+                # Do async work
+                pass
+            
+            def create_all_tasks(self):
+                return [asyncio.create_task(self.my_task())]
+        ```
+    """
+    def __init__(self, **kwargs):
+        """Initialize the AsyncCommsThread.
+        
+        Creates a daemon thread that will run an asyncio event loop. The thread
+        is configured with a name and optional timeout for coroutine execution.
+        
+        Args:
+            **kwargs: Keyword arguments.
+                - thread_name (str, optional): Base name for the thread.
+                    Defaults to the name of the subclass.
+                - timeout (float, optional): Timeout in seconds for coroutine
+                    execution. Defaults to TIMEOUT (15 seconds).
+        
+        Note:
+            The thread is created as a daemon thread, so it will automatically
+            terminate when the main program exits.
+        """
+        self.thread_name = kwargs.get('thread_name', type(self).__name__)
+        Logger.info(f'Initializing AsyncCommsThread: {self.thread_name}')
+        super().__init__(name=self.thread_name, daemon=True)
+        self.name = f'AsyncComms-{self.thread_name}'
+        self.timeout = kwargs.get('timeout', TIMEOUT)
+        self.stop_requested = False
+        self.send_contexts: List[Any] = []
+        self.event_loop: asyncio.AbstractEventLoop | None = None
+
+    def run(self) -> None:
+        """Thread entry point.
+        
+        Creates a new asyncio event loop, schedules the async communications
+        task, and runs the event loop forever. This method is called
+        automatically when the thread is started.
+        
+        The event loop will continue running until `stop()` is called, which
+        will cause the loop to stop and the thread to terminate.
+        """
+        Logger.info(f'Running {self.name}')
+        self.event_loop = asyncio.new_event_loop()
+        self.event_loop.create_task(self.run_asyncio_comms())
+        self.event_loop.run_forever()
+
+    def stop(self) -> None:
+        """Stop the thread and event loop.
+        
+        Thread-safe method that signals the thread to stop and schedules the
+        async stop coroutine to run in the event loop. This will cause the
+        event loop to stop and the thread to terminate.
+        
+        Note:
+            This method can be called from any thread. It does not wait for
+            the thread to fully terminate.
+        """
+        self.stop_requested = True
+        if self.event_loop and self.is_alive():
+            try:
+                asyncio.run_coroutine_threadsafe(self.stop_async(), self.event_loop)
+            except Exception as e:
+                Logger.debug(f'Error stopping {self.name}: {e}')
+
+    async def stop_async(self) -> None:
+        """Async stop handler.
+        
+        Cancels all running tasks, waits for cleanup, then stops the event loop.
+        This is called internally by `stop()` and should not be called directly.
+        
+        Note:
+            This coroutine must run in the same event loop that it stops.
+        """
+        # Get all tasks except the current one
+        current_task = asyncio.current_task()
+        pending_tasks = [
+            task for task in asyncio.all_tasks(self.event_loop)
+            if task is not current_task and not task.done()
+        ]
+        
+        # Cancel all pending tasks
+        for task in pending_tasks:
+            task.cancel()
+        
+        # Wait for all tasks to complete cancellation
+        if pending_tasks:
+            await asyncio.gather(*pending_tasks, return_exceptions=True)
+            Logger.debug(f'{self.name} cancelled {len(pending_tasks)} pending tasks')
+        
+        # Now stop the event loop
+        self.event_loop.call_soon_threadsafe(self.event_loop.stop)
+        Logger.info(f'{self.name} event loop stopped')
+
+    async def run_asyncio_comms(self) -> None:
+        """Run all async communication tasks.
+        
+        Creates all tasks from `create_all_tasks()` and waits for them to
+        complete. Tasks run concurrently and exceptions are captured rather
+        than immediately raised (via `return_exceptions=True`).
+        
+        This method runs until all tasks complete or until `stop_async()` is
+        called.
+        
+        Note:
+            Subclasses should implement `create_all_tasks()` to return a list
+            of asyncio tasks that need to run concurrently.
+        """
+        Logger.info(f'Starting asyncio communications in {self.name}')
+        tasks = self.create_all_tasks()
+        results = await asyncio.gather(*tasks, return_exceptions=True)
+        for i, result in enumerate(results):
+            if isinstance(result, Exception):
+                Logger.error(f'{self.name} task {i} failed with {type(result).__name__}: {result}')
+        Logger.info(f'{self.name} asyncio communications finished')
+
+    def create_all_tasks(self) -> List[asyncio.Task]:
+        """Create all async tasks to run concurrently.
+        
+        Subclasses must implement this method to return a list of asyncio
+        tasks that should run concurrently in the event loop. These tasks
+        typically handle various communication channels or services.
+        
+        Returns:
+            List[asyncio.Task]: List of asyncio tasks to run concurrently.
+        
+        Raises:
+            NotImplementedError: If not implemented by subclass.
+        
+        Example:
+            ```python
+            def create_all_tasks(self):
+                return [
+                    asyncio.create_task(self.listener_task()),
+                    asyncio.create_task(self.sender_task()),
+                ]
+            ```
+        """
+        raise NotImplementedError('create_all_tasks is not implemented')
+
+    def run_coroutine(self, coroutine: Callable, message: dict, timeout: Optional[float] = None) -> Any:
+        """Run a coroutine in the event loop from another thread.
+        
+        Thread-safe method to execute a coroutine function in this thread's
+        event loop. The coroutine is called with the provided message and
+        the result is returned synchronously, with a timeout.
+        
+        This is the primary way to interact with the async event loop from
+        other threads (e.g., the main thread).
+        
+        Args:
+            coroutine: A coroutine function to execute. Must be a coroutine
+                function (not a regular function).
+            message: Dictionary to pass as argument to the coroutine.
+            timeout: Optional timeout in seconds (defaults to self.timeout). -1 means no timeout.
+        
+        Returns:
+            Any: The return value from the coroutine.
+        
+        Raises:
+            AttributeError: If the event loop has not been initialized (thread
+                not started).
+            TypeError: If `coroutine` is not a coroutine function.
+            TimeoutError: If the coroutine does not complete within `timeout`
+                seconds.
+            Exception: If the coroutine raises an exception, it is re-raised
+                here.
+        
+        Example:
+            ```python
+            async def send_message(msg: dict) -> dict:
+                # Async operation
+                return {'status': 'ok'}
+            
+            # From another thread:
+            result = comms_thread.run_coroutine(send_message, {'data': 'test'})
+            ```
+        """
+        if not self.event_loop:
+            raise AttributeError(f'{self.name} event loop is not initialized')
+        
+        if not asyncio.iscoroutinefunction(coroutine):
+            raise TypeError(f'{self.name} parameter coroutine is not a coroutine function')
+
+        function_name = coroutine.__name__
+        Logger.debug(f'{self.name} running coroutine: {function_name}')
+
+        if timeout is None:
+            timeout = self.timeout
+        
+        if timeout == -1:
+            timeout = None
+
+        send_task = asyncio.run_coroutine_threadsafe(
+            coroutine(message), self.event_loop
+        )
+        try:
+            result = send_task.result(timeout=timeout)
+            Logger.debug(f'{self.name} {function_name} returned: {result!r}')
+            return result
+        except TimeoutError:
+            Logger.error(f'{self.name} {function_name} timed out after {timeout}s')
+            send_task.cancel()
+            raise
+        except Exception as exc:
+            Logger.error(f'{self.name} {function_name} raised an exception: {exc!r}')
+            send_task.cancel()
+            raise
diff --git a/src/cuemsengine/comms/ControllerCommunications.py b/src/cuemsengine/comms/ControllerCommunications.py
new file mode 100644
index 0000000..a8a787c
--- /dev/null
+++ b/src/cuemsengine/comms/ControllerCommunications.py
@@ -0,0 +1,302 @@
+"""Utilites for communications from ControllerEngine and NodeEngine."""
+import asyncio
+import json
+from pynng import Context
+from typing import Optional, Callable, Any
+
+from cuemsutils.log import Logger
+from cuemsutils.tools.CommunicatorServices import Communicator, IpcAddress
+
+from .AsyncCommsThread import AsyncCommsThread
+from .NodesHub import NodesHub, NodeOperation, OperationType, ActionType
+from ..osc.WebSocketOscHandler import (
+    websocket_osc_listener,
+    build_osc_message,
+    WebSocketOscRouter
+)
+
+
+class ControllerCommunications(AsyncCommsThread):
+    """
+    Communications class for ControllerEngine.
+    
+    Handles:
+    - Editor messages
+    - Player operation messages
+    - Nodeconf messages
+    - HWDiscovery messages
+    - WebSocket OSC messages (commands from UI)
+    """
+    def __init__(self, 
+                 nng_hub_address: str,
+                 editor_callback: Callable,
+                 node_operation_callback: dict[OperationType, Callable],
+                 websocket_osc_config: Optional[dict] = None):
+        """
+        Initialize AsyncCommsThread for ControllerEngine.
+        
+        Parameters:
+        - nng_hub_address: TCP/IPC address for NNG hub (e.g., "tcp://127.0.0.1:5555")
+        - editor_callback: Callback for editor messages
+        - node_operation_callback: Callback dictionary for received node operations
+        - websocket_osc_config: Optional dict with WebSocket OSC listener config:
+            - host: Host to bind to (default: "0.0.0.0")
+            - port: Port to listen on (default: 9190)
+            - node_id: Node identifier for NNG operations
+        """
+        super().__init__()
+        
+        # Initialize communicators
+        Logger.debug('Initializing ControllerCommunications')
+        self.editor_callback = editor_callback
+        self.editor = Communicator(IpcAddress.EDITOR.value)
+        self.hw_discovery = Communicator(IpcAddress.HWDISCOVERY.value)
+        self.nodeconf = Communicator(IpcAddress.NODECONF.value)
+        
+        # Initialize OSC hub based on mode
+        Logger.info(f'Initializing NNG hub: {nng_hub_address} in {NodesHub.Mode.LISTENER.value} mode')
+        self.nng_hub = NodesHub(
+            hub_address=nng_hub_address, mode=NodesHub.Mode.LISTENER
+        )
+        
+        # Set operation callbacks
+        self.nng_hub.set_receive_callbacks(node_operation_callback)
+        
+        # WebSocket OSC configuration
+        self._ws_osc_config = websocket_osc_config or {}
+        self._ws_osc_host = self._ws_osc_config.get('host', '0.0.0.0')
+        self._ws_osc_port = self._ws_osc_config.get('port', 9190)
+        self._node_id = self._ws_osc_config.get('node_id', 'controller')
+        
+        # WebSocket OSC router for message handling
+        self._osc_router = WebSocketOscRouter()
+        
+        # Track connected WebSocket clients for status broadcast (bidirectional)
+        self._ws_clients: set = set()
+        
+        # Command handlers (set by ControllerEngine)
+        self._command_handlers: dict[str, Callable] = {}
+
+        # Optional callback for new WebSocket client connections (late-join state dump)
+        self._on_client_connect: Optional[Callable] = None
+
+    def create_all_tasks(self):
+        Logger.info('Starting all tasks in ControllerCommunications')
+        tasks = [
+            asyncio.create_task(self.editor_listener()),
+            asyncio.create_task(self.nng_hub.start()),
+            asyncio.create_task(self.nng_hub.start_message_receiver())
+        ]
+        
+        # Add WebSocket OSC listener if configured
+        if self._ws_osc_port:
+            tasks.append(asyncio.create_task(self._websocket_osc_task()))
+        
+        return tasks
+    
+    #########################
+    # WebSocket OSC handling
+    #########################
+    
+    def register_command_handler(self, osc_path: str, handler: Callable[[Any], None], 
+                                  forward_to_nodes: bool = True) -> None:
+        """Register a handler for an OSC command path.
+        
+        Args:
+            osc_path: The OSC address to handle (e.g., '/engine/command/go')
+            handler: Callback function to handle the command value
+            forward_to_nodes: If True, also forward the command to NodeEngine via NNG
+        """
+        self._command_handlers[osc_path] = {
+            'handler': handler,
+            'forward': forward_to_nodes
+        }
+        
+        # Register with the OSC router
+        self._osc_router.register(osc_path, lambda addr, args: self._handle_osc_command(addr, args))
+        Logger.debug(f"Registered command handler for {osc_path} (forward={forward_to_nodes})")
+    
+    def register_osc_handler(self, osc_pattern: str, handler: Callable[[str, list], None]) -> None:
+        """Register a generic OSC handler for a pattern (non-command messages).
+        
+        Args:
+            osc_pattern: OSC address pattern (e.g., '/engine/players/*')
+            handler: Callback function receiving (address, args)
+        """
+        self._osc_router.register(osc_pattern, handler)
+        Logger.debug(f"Registered OSC handler for {osc_pattern}")
+    
+    def _handle_osc_command(self, address: str, args: list[Any]) -> None:
+        """Handle an OSC command received via WebSocket.
+        
+        Calls the registered handler and optionally forwards to NodeEngine.
+        """
+        handler_info = self._command_handlers.get(address)
+        if not handler_info:
+            Logger.warning(f"No handler registered for OSC command: {address}")
+            return
+        
+        # Get the value (first argument, or None for impulse)
+        value = args[0] if args else None
+        
+        Logger.info(f"WebSocket OSC command received: {address} = {repr(value)}")
+        
+        # Call the handler
+        try:
+            handler_info['handler'](value)
+        except Exception as e:
+            Logger.error(f"Error executing command handler for {address}: {e}")
+        
+        # Forward to NodeEngine via NNG if configured
+        if handler_info.get('forward', True):
+            self._forward_command_to_nodes(address, value)
+    
+    def _forward_command_to_nodes(self, address: str, value: Any) -> None:
+        """Forward a command to NodeEngine via NNG.
+        
+        Args:
+            address: The OSC command address (e.g., '/engine/command/go')
+            value: The command value
+        """
+        # Extract command name from address (e.g., '/engine/command/go' -> 'go')
+        parts = address.strip('/').split('/')
+        command_name = parts[-1] if parts else address
+        
+        operation = NodeOperation(
+            type=OperationType.COMMAND,
+            action=ActionType.UPDATE,
+            sender=self._node_id,
+            target=command_name,
+            data={'value': value, 'address': address}
+        )
+        
+        # Send via NNG (fire-and-forget)
+        try:
+            asyncio.run_coroutine_threadsafe(
+                self.nng_hub.send_operation(operation),
+                self.event_loop
+            )
+            Logger.debug(f"Forwarded command to nodes: {command_name} = {repr(value)}")
+        except Exception as e:
+            Logger.error(f"Error forwarding command to nodes: {e}")
+    
+    def set_on_client_connect(self, callback: Callable) -> None:
+        """Set callback for new WebSocket client connections.
+
+        The callback receives the websocket object and is awaited
+        inside the connection handler (runs on the comms event loop).
+        """
+        self._on_client_connect = callback
+
+    async def _websocket_osc_task(self) -> None:
+        """Async task that runs the WebSocket OSC listener."""
+        await websocket_osc_listener(
+            host=self._ws_osc_host,
+            port=self._ws_osc_port,
+            message_handler=self._osc_router.route,
+            stop_check=lambda: self.stop_requested,
+            client_set=self._ws_clients,
+            on_connect=self._on_client_connect
+        )
+
+    def broadcast_osc(self, address: str, value: Any) -> None:
+        """Send an OSC status message to all connected WebSocket clients.
+        
+        Call from ControllerEngine when status changes (running, armed, load, timecode).
+        Thread-safe: schedules send on the comms event loop.
+        
+        Args:
+            address: OSC address (e.g. '/engine/status/armed')
+            value: Value to send (str, int, or float)
+        """
+        data = build_osc_message(address, value)
+        if not data or not self._ws_clients:
+            return
+        async def _send_all():
+            for ws in list(self._ws_clients):
+                try:
+                    await ws.send(data)
+                except Exception as e:
+                    Logger.debug(f"WebSocket broadcast to client failed: {e}")
+        try:
+            asyncio.run_coroutine_threadsafe(_send_all(), self.event_loop)
+        except Exception as e:
+            Logger.debug(f"Could not schedule status broadcast: {e}")
+
+
+    #########################
+    # Editor messages
+    #########################
+    async def editor_listener(self):
+        """Editor listener (thread-safe)."""
+        Logger.info('Editor listener started')
+        await self.editor.responder_connect()
+        while not self.stop_requested:
+            Logger.debug(f'waiting for editor message')
+            await self.editor.responder_get_request(self.editor_callback)
+
+    async def respond_to_editor(self, message, context: Context):
+        """Respond to editor (thread-safe)."""
+        Logger.debug(f'Sending to editor: {message}, with context ')
+        await context.asend(json.dumps(message).encode())
+    
+    def reply_to_editor(self, message, context: Context):
+        send_task = asyncio.run_coroutine_threadsafe(
+            self.editor.responder_post_reply(message, context),
+            self.event_loop
+        )
+        try:
+            _ = send_task.result(timeout=self.timeout)
+        except TimeoutError:
+            Logger.debug('The coroutine took too long, cancelling the task...')
+            send_task.cancel()
+            raise
+        except Exception as exc:
+            Logger.debug(f'The coroutine raised an exception: {exc!r}')
+            send_task.cancel()
+            raise
+
+
+    #########################
+    # Nodeconf messages
+    #########################
+    def request_to_nodeconf(self, message: dict, timeout: Optional[float] = None) -> dict:
+        """
+        Send a request to nodeconf and get response (thread-safe).
+        
+        Parameters:
+        - message: Dictionary containing the request message
+        - timeout: Optional timeout in seconds (defaults to `self.timeout`)
+        
+        Returns:
+        - dict: Response from `nodeconf.send_request` via `run_coroutine` method
+        
+        Raises:
+        - AttributeError: If `nodeconf` is not initialized
+        """
+        if not self.nodeconf:
+            raise AttributeError('nodeconf communicator is not initialized')
+        
+        return self.run_coroutine(self.nodeconf.send_request, message, timeout)
+    
+    #########################
+    # HWDiscovery messages
+    #########################
+    def request_to_hwdiscovery(self, message: dict, timeout: Optional[float] = None) -> dict:
+        """
+        Send a request to hardware discovery and get response (thread-safe).
+        
+        Parameters:
+        - message: Dictionary containing the request message
+        - timeout: Optional timeout in seconds (defaults to `self.timeout`)
+        
+        Returns:
+        - dict: Response from `hwdiscovery.send_request` via `run_coroutine` method
+        
+        Raises:
+        - AttributeError: If `hwdiscovery` is not initialized
+        """
+        if not self.hw_discovery:
+            raise AttributeError('hw_discovery communicator is not initialized')
+        
+        return self.run_coroutine(self.hw_discovery.send_request, message, timeout)
diff --git a/src/cuemsengine/comms/NodeCommunications.py b/src/cuemsengine/comms/NodeCommunications.py
new file mode 100644
index 0000000..185703c
--- /dev/null
+++ b/src/cuemsengine/comms/NodeCommunications.py
@@ -0,0 +1,225 @@
+import asyncio
+from typing import Optional, Callable, Any
+
+from cuemsutils.log import Logger
+
+from .AsyncCommsThread import AsyncCommsThread
+from .NodesHub import NodesHub, ActionType, OperationType, NodeOperation
+
+
+class NodeCommunications(AsyncCommsThread):
+    def __init__(self, hub_address: str, node_id: str, 
+                 command_callback: Optional[Callable[[str, Any], None]] = None):
+        """
+        Initialize AsyncCommsThread for NodeEngine.
+        
+        - Runs `OscNodesHub` in `DIALER` mode
+        - Sends players to `ControllerEngine`
+        - Receives COMMAND operations from ControllerEngine via NNG
+        - Routes commands to NodeEngine handlers
+        
+        Parameters:
+        - hub_address: TCP/IPC address for OSC hub (e.g., "tcp://127.0.0.1:5555")
+        - node_id: Unique identifier for this node
+        - command_callback: Optional callback for handling received commands.
+                           Called with (command_name: str, value: Any)
+        """
+        super().__init__()
+        self.nng_hub = NodesHub(
+            hub_address, mode=NodesHub.Mode.DIALER
+        )
+        self.node_id = node_id
+        self._command_callback = command_callback
+        
+        # Set up receive callback for COMMAND operations
+        self.nng_hub.set_receive_callbacks({
+            OperationType.COMMAND: self._handle_command_operation
+        })
+
+    def set_command_callback(self, callback: Callable[[str, Any], None]) -> None:
+        """Set the callback for handling received commands.
+        
+        Args:
+            callback: Function to call when a command is received.
+                     Called with (command_name: str, value: Any)
+        """
+        self._command_callback = callback
+        Logger.debug(f"Command callback set in NodeCommunications")
+
+    def create_all_tasks(self):
+        """Create async tasks for node communications."""
+        Logger.info('Starting all tasks in NodeCommunications')
+        Logger.info(f'NNG hub mode: {self.nng_hub.mode}')
+        Logger.info(f'NNG hub address: {self.nng_hub.address}')
+        Logger.info(f'Command callbacks registered: {list(self.nng_hub._on_operation_received.keys()) if self.nng_hub._on_operation_received else "None"}')
+        return [
+            asyncio.create_task(self.nng_hub.start()),
+            asyncio.create_task(self.nng_hub.start_message_receiver())
+        ]
+    
+    def _handle_command_operation(self, operation: NodeOperation) -> None:
+        """Handle a COMMAND operation received from ControllerEngine.
+        
+        IMPORTANT: Commands are executed in a separate thread to avoid blocking
+        the NNG message receiver. Some commands like 'go' can block for the 
+        duration of cue playback, which would prevent receiving STOP/LOAD commands.
+        
+        Args:
+            operation: The NodeOperation containing the command
+        """
+        if operation.type != OperationType.COMMAND:
+            return
+        
+        command_name = operation.target
+        data = operation.data or {}
+        value = data.get('value')
+        address = data.get('address', f'/engine/command/{command_name}')
+        
+        Logger.info(f"Received command via NNG: {command_name} = {repr(value)}")
+        
+        if self._command_callback:
+            # Execute command in a separate thread to avoid blocking the NNG receiver
+            # This is critical because commands like 'go' block until cue playback completes
+            import threading
+            def run_command():
+                try:
+                    self._command_callback(command_name, value, address)
+                except Exception as e:
+                    Logger.error(f"Error executing command callback for {command_name}: {e}")
+            
+            thread = threading.Thread(
+                target=run_command,
+                name=f"NNG-Command-{command_name}",
+                daemon=True
+            )
+            thread.start()
+            Logger.debug(f"Started command thread: {thread.name}")
+        else:
+            Logger.warning(f"No command callback set for NodeCommunications")
+
+    #########################
+    # Nng comms to Controller
+    #########################
+    def send_operation(self, operation: NodeOperation, timeout: Optional[float] = None):
+        """
+        Send a NodeOperation to the controller (thread-safe).
+        
+        Parameters:
+        - operation: NodeOperation to send
+        - timeout: Optional timeout in seconds (defaults to `self.timeout`)
+        """
+        return self.run_coroutine(self.nng_hub.send_operation, operation, timeout)
+    
+    def add_player(self, player_id: str, data: dict, timeout: Optional[float] = None):
+        """
+        Add a player to the OSC hub (thread-safe).
+        
+        Parameters:
+        - player_id: Unique identifier for the player
+        - data: Player data to send
+        - timeout: Optional timeout in seconds (defaults to `self.timeout`)
+        """
+        operation = NodeOperation(
+            type=OperationType.PLAYER,
+            action=ActionType.ADD,
+            sender=self.node_id,
+            target=player_id,
+            data=data
+        )
+        return self.send_operation(operation, timeout)
+    
+    def remove_player(self, player_id: str, timeout: Optional[float] = None):
+        """
+        Remove a player from the OSC hub (thread-safe).
+        
+        Parameters:
+        - player_id: Unique identifier of the player to remove
+        - timeout: Optional timeout in seconds (defaults to `self.timeout`)
+        """
+        operation = NodeOperation(
+            type=OperationType.PLAYER,
+            action=ActionType.REMOVE,
+            sender=self.node_id,
+            target=player_id,
+            data=None
+        )
+        return self.send_operation(operation, timeout)
+
+    def add_cue(self, cue_id: str, offset: str, timeout: Optional[float] = None):
+        """
+        Add a cue to the OSC hub (thread-safe).
+        
+        Parameters:
+        - cue_id: Unique identifier of the cue to add
+        - data: Data to send
+        - timeout: Optional timeout in seconds (defaults to `self.timeout`)
+        """
+        operation = NodeOperation(
+            type=OperationType.CUE,
+            action=ActionType.ADD,
+            sender=self.node_id,
+            target=cue_id,
+            data={
+                'id': cue_id,
+                'offset': offset
+            }
+        )
+        return self.send_operation(operation, timeout)
+
+    def remove_cue(self, cue_id: str, timeout: Optional[float] = None):
+        """
+        Remove a cue from the OSC hub (thread-safe).
+        
+        Parameters:
+        - cue_id: Unique identifier of the cue to remove
+        - timeout: Optional timeout in seconds (defaults to `self.timeout`)
+        """
+        operation = NodeOperation(
+            type=OperationType.CUE,
+            action=ActionType.REMOVE,
+            sender=self.node_id,
+            target=cue_id,
+            data={'id': cue_id}
+        )
+        return self.send_operation(operation, timeout)
+
+    def update_nextcue(self, cue_id: str, timeout: Optional[float] = None):
+        """Send a nextcue status update to the controller (thread-safe).
+
+        Parameters:
+        - cue_id: UUID of the next cue (or empty string when no next cue)
+        - timeout: Optional timeout in seconds (defaults to `self.timeout`)
+        """
+        operation = NodeOperation(
+            type=OperationType.STATUS,
+            action=ActionType.UPDATE,
+            sender=self.node_id,
+            target='nextcue',
+            data={'nextcue': cue_id}
+        )
+        return self.send_operation(operation, timeout)
+
+    def update_cue(self, cue_id: str, percentage: int, timeout: Optional[float] = None):
+        """Send a cue percentage progress update to the controller (thread-safe).
+
+        Used during playback to report in-progress status (values 1-99).
+
+        Callers MUST throttle calls to CUE_STATUS_UPDATE_HZ (defined in loop_cue.py)
+        before invoking this method to limit NNG traffic over the network in
+        multi-node deployments (Tier 1 of the two-tier throttle strategy).
+        The controller applies a second throttle (CUE_BROADCAST_MIN_INTERVAL) before
+        forwarding to the UI via WebSocket (Tier 2).
+
+        Parameters:
+        - cue_id: Unique identifier of the cue being played
+        - percentage: Playback progress (1-99); 1 = started, 99 = almost done
+        - timeout: Optional timeout in seconds (defaults to `self.timeout`)
+        """
+        operation = NodeOperation(
+            type=OperationType.CUE,
+            action=ActionType.UPDATE,
+            sender=self.node_id,
+            target=cue_id,
+            data={'id': cue_id, 'percentage': percentage}
+        )
+        return self.send_operation(operation, timeout)
diff --git a/src/cuemsengine/comms/NodesHub.py b/src/cuemsengine/comms/NodesHub.py
new file mode 100644
index 0000000..caac6e0
--- /dev/null
+++ b/src/cuemsengine/comms/NodesHub.py
@@ -0,0 +1,151 @@
+from enum import Enum
+from dataclasses import dataclass
+from cuemsutils.tools.HubServices import Message, NngBusHub
+from cuemsutils.log import Logger
+import asyncio
+from typing import Optional, Dict, Callable
+
+from ..osc.helpers import Node, serialize_node, deserialize_node
+
+class ActionType(Enum):
+    """The type of action to be performed."""
+    ADD = "add"
+    REMOVE = "remove"
+    UPDATE = "update"
+
+class OperationType(Enum):
+    """The type of operation to be performed."""
+    CUE = "cue"
+    PLAYER = "player"
+    COMMAND = "command"  # For ControllerEngine → NodeEngine command forwarding
+    STATUS = "status"    # For NodeEngine → ControllerEngine status updates
+
+@dataclass
+class NodeOperation:
+    """Represents an operation to be performed from/to a node."""
+    type: OperationType
+    action: ActionType
+    sender: str
+    target: str
+    data: dict
+
+    def duplicate(self):
+        return self.__class__(
+            type=self.type,
+            action=self.action,
+            sender=self.sender,
+            target=self.target,
+            data=self.data if self.data else {}
+        )
+
+    @staticmethod
+    def from_message(message: Message):
+        """
+        Create a NodeOperation from a message.
+        Uses sender from message data (node_id) rather than NNG address.
+        """
+        return NodeOperation(
+            type=OperationType(message.data["type"]),
+            action=ActionType(message.data["action"]),
+            sender=message.data["sender"],
+            target=message.data["target"],
+            data=message.data["data"]
+        )
+
+    def __dict__(self):
+        return {
+            "type": self.type.value,
+            "action": self.action.value,
+            "sender": self.sender,
+            "target": self.target,
+            "data": self.data
+        }
+    
+    def __str__(self):
+        return f"{type(self).__name__} by {self.sender}: {self.action.value} on {self.type.value} {self.target} (with{'out' if not self.data else ''} data)"
+
+class NodesHub(NngBusHub):
+    """
+    Extension of NngBusHub for transmitting pyossia player node structures.
+    
+    Nodes send player structures (player_id + root_node) to the controller.
+    Players are transmitted one by one as they become available.
+    This class handles transmission only - storage is left to the user.
+    """
+    
+    def __init__(self, hub_address: str, mode=NngBusHub.Mode.LISTENER):
+        """
+        Initialize NodesHub.
+        
+        Parameters:
+        - hub_address: The address for the bus communication
+        - mode: LISTENER or DIALER mode
+
+        Note: We use the base class queues (self.outgoing and self.incoming) to send and receive Message objects that are translated into NodeOperations.
+        """
+        super().__init__(hub_address, mode)
+        
+        # Callback for when operations are received
+        self._on_operation_received: Optional[dict[OperationType, Callable]] = None
+        
+    #########################
+    # Nodes communication
+    #########################
+    async def get_operation(self) -> NodeOperation | None:
+        """
+        Get the next operation from the queue and return it as a NodeOperation object.
+        """
+        message = await self.get_message()
+        if not message:
+            return None
+        return NodeOperation.from_message(message)
+
+    async def send_operation(self, operation: NodeOperation):
+        """
+        Send an operation to the send queue.
+        """
+        message = Message(sender=operation.sender, data=operation.__dict__())
+        await self.send_message(message)
+        Logger.debug(f"Queued {operation.action.value} operation for {operation.type.value} {operation.target}")
+
+    def set_receive_callbacks(self, callback_dict: dict[OperationType, Callable]):
+        """
+        Set the callbacks to be invoked when nodes send operations.
+        
+        The keys of the dictionary are the operation types to perform, and the values are the callbacks.
+        The callbacks must take the following argument: (operation: NodeOperation)
+        """
+        self._on_operation_received = callback_dict
+
+    async def start_message_receiver(self):
+        """
+        Continuously receive messages and invoke callback (controller side).
+        
+        This runs in a loop, receiving messages and invoking the callback
+        if set. Should be run as a background task.
+        
+        The callback receives: (sender, message)
+        """
+        if not self._on_operation_received:
+            Logger.warning("No operation callbacks set")
+            return
+        
+        while True:
+            try:
+                operation = await self.get_operation()
+                
+                if operation:
+                    Logger.debug(f"Received {operation}")
+                    
+                    # Invoke callback if set (lookup by enum, not string value)
+                    message_function = self._on_operation_received.get(operation.type)
+                    if message_function:
+                        if asyncio.iscoroutinefunction(message_function):
+                            await message_function(operation)
+                        else:
+                            message_function(operation)
+                await asyncio.sleep(0.01)  # Prevent tight loop
+                
+            except Exception as e:
+                Logger.error(f"{type(e)} handling {operation}: {e}")
+                await asyncio.sleep(0.1)  # Back off on error
diff --git a/src/cuemsengine/comms/__init__.py b/src/cuemsengine/comms/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/src/cuemsengine/core/BaseEngine.py b/src/cuemsengine/core/BaseEngine.py
new file mode 100644
index 0000000..f5c486b
--- /dev/null
+++ b/src/cuemsengine/core/BaseEngine.py
@@ -0,0 +1,462 @@
+from dis import hasconst
+from functools import partial
+from typing import Any, Callable
+from os import path, remove
+
+from cuemsutils.log import Logger, logged
+from cuemsutils.xml import XmlReaderWriter
+from cuemsutils.tools.CTimecode import CTimecode
+from cuemsutils.tools.ConfigManager import ConfigManager
+from cuemsutils.tools.SignalEngine import SignalEngine
+from cuemsutils.cues import ActionCue, CueList, CuemsScript
+
+from .EngineStatus import EngineStatus
+from ..tools.MtcListener import MtcListener
+from ..osc import VALUE_TYPES_DICT, OssiaServer, OssiaClient, ServerDevices, ClientDevices
+from ..osc.OssiaClient import PlayerClient
+from ..osc.helpers import add_callback_to_all, add_prefix_to_all
+from ..cues.CueHandler import CUE_HANDLER
+from ..tools.PortHandler import PORT_HANDLER
+
+MTC_PORT = "Midi Through Port-0"
+CONTROLLER_NETWORK_FLAG = "NodeType.master"
+SHOW_LOCK_PATH = '/tmp/cuems.show.lock'
+CONTROLLER_HOST = "localhost" #"controller.local"
+NODE_ENGINE_PORT = 10000
+
+class BaseEngine(SignalEngine):
+    def __init__(self, with_cm: bool = True, with_mtc: bool = True, with_signals: bool = True):
+        """
+        Initialize the BaseEngine.
+
+        Args:
+            with_cm (bool): Whether to initialize the ConfigManager. Default is True.
+            with_mtc (bool): Whether to initialize the MTC listener. Default is True.
+            with_signals (bool): Whether to initialize the SignalEngine. Default is True.
+        """
+        # Engine parameters
+        self.with_cm = with_cm
+        self.with_mtc = with_mtc
+        self.with_signals = with_signals
+        self.go_offset = None  # None = not computing timecode; 0 = raw MTC
+        self.script: CuemsScript = None
+        self.stop_requested = False
+        self.node_name = None
+        self.node_host = None
+        self.mtc_port = MTC_PORT
+        self.timecode = None
+        self.status = EngineStatus()
+        self.oscquery_client_list: list[OssiaClient] = []
+
+        super().__init__(with_signals=with_signals)
+    
+        if self.with_cm:
+            self.set_config_manager()
+        if self.with_mtc:
+            self.set_mtc_listener()
+
+        ## dev: CUE "POINTERS":
+        # here we use the "standard" point of view that there is an
+        # ongoing cue already running (one or many, at least the last to be gone)
+        # and a pointer indicating which is the next to be gone when go is pressed
+        
+        self.ongoing_cue = None
+        self.next_cue_pointer = None
+        self.show_locked = False
+
+        Logger.info(f"{self.__class__.__name__}@{self.node_name} initialized, waiting start signal")
+
+    @property
+    def timecode(self) -> str | None:
+        return self._timecode
+    
+    @timecode.setter
+    def timecode(self, value: str | None) -> None:
+        self._timecode = value
+        if hasattr(self, 'on_timecode_change'):
+            self.on_timecode_change(value) # type: ignore[attr-defined]
+
+    def stop_all(self) -> None:
+        if self.with_mtc:
+            try:
+                self.stop_mtc_listener()
+            except Exception as e:
+                Logger.error(f'Error stopping MTC listener: {e}')
+                raise e
+        try:
+            self.remove_show_lock_file()
+        except Exception as e:
+            Logger.error(f'Error removing show lock file: {e}')
+            raise e
+
+    ### STATUS ###
+    def set_status(self, property: str, value: str, strict: bool = False) -> None:
+        """Set the status of the engine
+        
+        Args:
+            property (str): The property to set
+            value (str): The value to set
+            strict (bool): If True, raise an AttributeError if the property is not found
+        """
+        if f"_{property}" in self.status.__dict__.keys():
+            Logger.debug(f'Setting property {property} to {value}')
+            self.status.__setattr__(property, value)
+        else:
+            Logger.error(f'Property {property} not found in EngineStatus')
+            if strict:
+                raise AttributeError(f'Property {property} not found in EngineStatus')
+    
+    def get_status(self, property: str, strict: bool = False) -> str:
+        """Get the status of the engine
+        
+        Args:
+            property (str): The property to get
+            strict (bool): If True, raise an AttributeError if the property is not found
+        """
+        value = getattr(self.status, property, "NotFound")
+        if value == "NotFound":
+            Logger.error(f'Property {property} not found in EngineStatus')
+            if strict:
+                raise AttributeError(f'Property {property} not found in EngineStatus')
+        return value
+    
+    def status_callback(self, endpoint: str, value: str) -> None:
+        """Callback for the status endpoint"""
+        Logger.debug(f'Status callback received: {endpoint} = {value}')
+        parameter = str(endpoint).split('/')[-1]
+        self.set_status(parameter, value)
+
+    def get_all_status_names(self) -> list[str]:
+        return [i[1:] for i in vars(self.status).keys()]
+    
+    def get_status_endpoints(self) -> dict[str, list[Any]]:
+        endpoints = self.build_endpoints_from_status()
+        Logger.debug(f"Status endpoints: {endpoints}")
+        # remove unwanted callbacks from status nodes that are set programmatically
+        # to avoid callback loops and threading issues when push_value() is called
+        for i in ["currentcue", "running", "load", "timecode", "armed"]:
+            if f"/engine/status/{i}" in endpoints:
+                endpoints[f"/engine/status/{i}"][1] = None
+        return endpoints
+
+    def build_endpoints_from_status(self) -> dict[str, list[Any, Callable | None, Any]]:
+        endpoints = {}
+        Logger.debug(f"Building endpoints from status, vars: {list(vars(self.status).keys())}")
+        for k, v in vars(self.status).items():
+            if v is None:
+                Logger.debug(f"Skipping {k} (value is None)")
+                continue
+            type_name = type(v).__name__
+            # Map Python type names to pyossia type names
+            if type_name == 'str':
+                type_name = 'string'
+            if type_name not in VALUE_TYPES_DICT:
+                Logger.warning(f"Unknown value type {type_name} for status property {k}, skipping")
+                continue
+            endpoint_path = f"/engine/status/{k[1:]}"
+            endpoints[endpoint_path] = [VALUE_TYPES_DICT[type_name], self.status_callback, v]
+            Logger.debug(f"Added endpoint: {endpoint_path} with type {type_name} and value {v}")
+        return endpoints   
+
+    ### OSCQUERY ###
+    def set_oscquery_server(self, endpoints: dict = None, host: str = None, port: int = None):
+        if port is None:
+            # Try to get port from config, fallback to default
+            if hasattr(self, 'cm') and self.cm and hasattr(self.cm, 'node_conf') and self.cm.node_conf:
+                port = self.cm.node_conf.get('oscquery_ws_port', 9001)
+            else:
+                port = 9001  # Default OSCQuery port
+        if host is None:
+            # For ControllerEngine, controller_ip might be None, use CONTROLLER_HOST as fallback
+            host = getattr(self, 'controller_ip', None) or CONTROLLER_HOST
+        local_port = PORT_HANDLER.new_random_port()
+        if local_port is None:
+            raise RuntimeError("Failed to get random port for OSCQuery server")
+        self.oscquery_server = OssiaServer(
+            host = host,
+            local_port = local_port,
+            remote_port = port,
+            server = ServerDevices.OSCQUERY,
+            endpoints = endpoints
+        )
+
+    def set_oscquery_client(self, host: str = None, port: int = None) -> OssiaClient:
+        if port is None:
+            port = self.cm.node_conf['oscquery_ws_port']
+        if host is None:
+            host = self.controller_ip
+        oscquery_client = OssiaClient(
+            host = host,
+            local_port = PORT_HANDLER.new_random_port(),
+            remote_port = port,
+            remote_type = ClientDevices.OSCQUERY
+        )
+        Logger.debug(f"OscQueryClient created: {oscquery_client}")
+        self.oscquery_client_list.append(oscquery_client)
+        return oscquery_client
+
+    ### MTC LISTENER ###
+    def set_mtc_listener(self) -> None:
+        """Set the MTC listener"""
+        mtc_step = partial(BaseEngine.mtc_callback, self)
+        mtc_reset = partial(BaseEngine.mtc_callback, self, CTimecode('00:00:00:00'))
+        
+        if not self.mtc_port:
+            self.mtc_port = self.cm.node_conf['mtc_port']
+
+        if self.mtc_port is not None:
+            self.mtc_listener = MtcListener(
+                port=self.mtc_port,
+                step_callback = mtc_step,
+                reset_callback = mtc_reset
+            )
+        else:
+            Logger.error('MTC port not set, cannot create MtcListener')
+            self.stop()
+            exit(-1)
+
+    def stop_mtc_listener(self) -> None:
+        if self.mtc_listener is not None and self.mtc_listener.is_alive():
+            try:
+                self.mtc_listener.stop()
+                self.mtc_listener.join()
+                self.mtc_listener = None
+            except Exception as e:
+                Logger.error(f'Error stopping MTC listener: {e}')
+                raise e
+
+    def reset_script(self) -> None:
+        if self.script:
+            self.script = None
+            self.ongoing_cue = None
+            self.next_cue_pointer = None
+            self.go_offset = None
+            # Only set OSCQuery values if server exists and has the nodes
+            if hasattr(self, 'oscquery_server') and self.oscquery_server:
+                try:
+                    self.oscquery_server.set_value('/engine/status/running', "no")
+                    self.oscquery_server.set_value('/engine/status/gocue', "no")
+                except ValueError as e:
+                    Logger.warning(f"Could not reset OSCQuery status nodes: {e}. Server may not be fully initialized.")
+
+    def mtc_callback(self, mtc: CTimecode) -> None:
+        if self.go_offset is not None:
+            self.timecode = mtc.milliseconds - self.go_offset
+
+    ### CONFIG MANAGER ###
+    def set_config_manager(self) -> None:
+        """Set the ConfigManager"""
+        from cuemsutils.xml import ProjectMappings
+        try:
+            self.cm = ConfigManager(load_all=True)
+            self.node_host = f"http://{self.cm.node_conf['uuid'][-12:]}.local"
+        except FileNotFoundError:
+            Logger.error('Node config file could not be found. Exiting !!!!!')
+            exit(-1)
+        except Exception as e:
+            Logger.error(f'Exception while loading config: {e}')
+            exit(-1)
+        Logger.info(f'Node conf: {self.cm.node_conf}')
+        # Get node name from config as a check step
+        try:
+            self.node_name = str(self.cm.node_conf['uuid'])
+        except KeyError:
+            Logger.error('Node name not found in config. Exiting !!!!!')
+            exit(-1)
+
+        # Get tmp path from config as a check step
+        try:
+            self.tmp_path = str(self.cm.tmp_path)
+        except KeyError:
+            Logger.error('Tmp path not found in config. Exiting !!!!!')
+            exit(-1)
+
+        # Get controller IP from network map
+        try:
+            self.controller_ip = self.get_controller_ip()
+            Logger.info(f'Controller IP: {self.controller_ip}')
+        except Exception as e:
+            Logger.error(f'{type(e)} while getting controller IP: {e}')
+            exit(-1)
+
+    def get_controller_ip(self) -> str:
+        """Set the controller IP address"""
+        if not hasattr(self, 'cm') or not self.cm.network_map:
+            raise AttributeError('No network map found')
+        nodes = self.cm.network_map['node_list']
+        if not nodes:
+            raise ValueError('No nodes found in network map')
+        for node_item in nodes:
+            node = node_item.get('node', {}) if isinstance(node_item, dict) else {}
+            if node.get('node_type') == CONTROLLER_NETWORK_FLAG:
+                return node.get('ip')
+        raise ValueError('No controller node found in network map')
+
+    def find_hosts(self) -> list[dict[str, str | bool]]:
+        """
+        Extract the list of adopted online hosts in the network map
+
+        Returns:
+        - list[dict[str, str | bool]]: List of hosts with their IP, uuid and controller flag
+
+        Exceptions:
+        - ValueError: No nodes found in network map
+        - AttributeError: No controller found in network map
+        """
+        Logger.info(f'Looking for hosts in network map')
+        network_dict = self.cm.network_map
+        if not network_dict:
+            raise ValueError('No network map not found')
+        nodes, _ = self.cm.network_map.get_nodes_by_adoption(network_dict)
+        if not nodes:
+            raise ValueError('No adopted nodes found in network map')
+        hosts = [
+            {'ip': node.get('ip'), 'uuid': node.get('uuid'), 'controller': node.get('node_type') == CONTROLLER_NETWORK_FLAG}
+            for node in nodes
+            if node.get('online') == 'True'
+        ]
+        if not any(host.get('controller') for host in hosts):
+            raise AttributeError('No controller found in network map')
+        if len([host for host in hosts if host.get('controller')]) > 1:
+            raise AttributeError('Multiple controllers found in network map')
+        return hosts
+
+    def print_all_status(self) -> None:
+        Logger.info('STATUS REQUEST BY SIGUSR2 SIGNAL')
+        if self.cm.is_alive():
+            Logger.info(self.cm.getName() + ' is alive)')
+        else:
+            Logger.info(self.cm.getName() + ' is not alive, trying to restore it')
+            self.cm.start()
+
+        '''
+        if self.ws_server.is_alive():
+            Logger.info(self.ws_server.getName() + ' is alive')
+            try:
+                # os.kill(self.ws_pid, 0)
+            except OSError:
+                Logger.info('\tws child process is NOT running')
+            else:
+                Logger.info('\tws child process is running')
+        else:
+            Logger.info(self.ws_server.getName() + ' is not alive, trying to restore it')
+            # self.ws_server.start()
+        '''
+
+        Logger.info(f'MTC: {self.mtc_listener.timecode()}')
+
+    ### SHOW LOCK FILE ###
+    def set_show_lock_file(self): # DEV: static
+        if not path.isfile(SHOW_LOCK_PATH):
+            try:
+                with open(SHOW_LOCK_PATH, 'w') as file:
+                    file.write(' ')
+                Logger.info("/tmp/cuems.show.lock file written...")
+                self.show_locked = True
+            except:
+                Logger.warning("Could not write show lock file")
+        else:
+            Logger.info(f'Show lock file {SHOW_LOCK_PATH} already exists')
+            self.show_locked = True
+
+    def remove_show_lock_file(self): # DEV: static
+        if path.isfile(SHOW_LOCK_PATH):
+            try:
+                remove(SHOW_LOCK_PATH)
+                Logger.info("/tmp/cuems.show.lock file removed...")
+                self.show_locked = False
+            except OSError:
+                Logger.warning("Could not delete master lock file")
+        else:
+            Logger.info(f'Show lock file {SHOW_LOCK_PATH} does not exist')
+            self.show_locked = False
+
+    @logged
+    def read_script(self, project_name: str) -> None:
+        xml_file = path.join(self.cm.library_path, 'projects', project_name, 'script.xml')
+        if not path.isfile(xml_file):
+            raise FileNotFoundError(f'Script file {xml_file} not found')
+        reader = XmlReaderWriter(
+            schema_name = 'script',
+            xmlfile = xml_file
+        )
+        self.script = reader.read_to_objects()
+
+    @logged
+    def initial_cuelist_process(self, cuelist: CueList = None):
+        ''' 
+        Review all the items recursively to update target uuids and objects
+        and to load all the "loaded" flagged
+        '''
+        
+        if not self.script:
+            Logger.error('No script found, need to load a project first')
+            raise ValueError('Script is not loaded')
+        
+        if cuelist is None:
+            cuelist = self.script.cuelist
+        Logger.info(f'Processing {type(cuelist).__name__}: {cuelist.id}')
+        if not hasattr(cuelist, 'contents') or not cuelist.contents or len(cuelist.contents) == 0:
+            Logger.warning('Cuelist contents is empty, nothing to process')
+            return
+        
+        cuelist.localize_cue(self.cm.node_uuid)
+        CUE_HANDLER.arm(cuelist, True)
+
+        for index, item in enumerate(cuelist.contents):
+            if item is None:
+                Logger.warning(f'Skipping None item at index {index} in cuelist {cuelist.id}')
+                continue
+
+            try:
+                if isinstance(item, CueList):
+                    self.initial_cuelist_process(item)
+
+                item.localize_cue(self.cm.node_uuid)
+                
+                if item.target is None or item.target == "":
+                    if (index + 1) == len(cuelist.contents):
+                        '''
+                        If the item is the last in the cuelist we leave the
+                        target fields as None
+                        '''
+                        item.target = None
+                        item._target_object = None
+                    else:
+                        next_item = cuelist.contents[index + 1]
+                        if next_item is not None:
+                            item.target = next_item.id
+                            item._target_object = next_item
+                        else:
+                            item.target = None
+                            item._target_object = None
+                else:
+                    item._target_object = self.script.find(item.target)
+                    if item._target_object is None:
+                        Logger.warning(f'{type(item).__name__} {item.id} has target {item.target} that could not be found in the script (deleted?)')
+
+                Logger.debug(f'Target object for {type(item)} {item.id} is {item._target_object}')
+                if isinstance(item, ActionCue):
+                    item._action_target_object = self.script.find(item.action_target)
+                    if item._action_target_object is None and item.action_target:
+                        Logger.warning(f'ActionCue {item.id} has action_target {item.action_target} that could not be found in the script (deleted?)')
+
+            except Exception as e:
+                Logger.error(f'Error processing item at index {index} in cuelist {cuelist.id}: {e}')
+                continue
+
+        # Arm first cue + duration-aware lookahead. The sliding window
+        # (_arm_ahead in go/go_threaded) arms subsequent cues during
+        # playback. For post_go='go' chains, arm() recursively arms the
+        # entire chain. For go_at_end chains, only 2 cues with meaningful
+        # duration are armed, saving resources for large projects.
+        if cuelist.contents:
+            first_cue = None
+            for c in cuelist.contents:
+                if c.enabled:
+                    first_cue = c
+                    break
+            if first_cue and getattr(first_cue, '_local', False):
+                Logger.info(f'Arming first enabled cue + lookahead for {type(cuelist).__name__}: {cuelist.id}')
+                CUE_HANDLER.arm(first_cue, True)
+                CUE_HANDLER._arm_ahead(first_cue)
diff --git a/src/cuemsengine/core/EngineStatus.py b/src/cuemsengine/core/EngineStatus.py
new file mode 100644
index 0000000..613132c
--- /dev/null
+++ b/src/cuemsengine/core/EngineStatus.py
@@ -0,0 +1,205 @@
+class EngineStatus:
+    """
+    A class that represents the status of an engine.
+    """
+    def __init__(self):
+        self.recieved = 0  # Initialize before test (test setter increments this)
+        self.load = ""
+        self.loadcue = ""
+        self.go = ""
+        self.gocue = ""
+        self.pause = ""
+        self.stop = ""
+        self.resetall = ""
+        self.preload = ""
+        self.unload = ""
+        self.hwdiscovery = ""
+        self.deploy = ""
+        self.test = ""
+        self.timecode = 0
+        self.nextcue = ""
+        self.running = ""
+        self.armed = ""
+
+        del self.currentcue # start with empty array
+
+    @property
+    def load(self) -> str | None:
+        return self._load
+
+    @load.setter 
+    def load(self, value: str | None) -> None:
+        self._load = value
+
+    @property
+    def loadcue(self) -> str | None:
+        return self._loadcue
+
+    @loadcue.setter
+    def loadcue(self, value: str | None) -> None:
+        self._loadcue = value
+
+    @property
+    def go(self) -> str | None:
+        return self._go
+
+    @go.setter
+    def go(self, value: str | None) -> None:
+        self._go = value
+
+    @property
+    def gocue(self) -> str | None:
+        return self._gocue
+
+    @gocue.setter
+    def gocue(self, value: str | None) -> None:
+        self._gocue = value
+
+    @property
+    def pause(self) -> str | None:
+        return self._pause
+
+    @pause.setter
+    def pause(self, value: str | None) -> None:
+        self._pause = value
+
+    @property
+    def stop(self) -> str | None:
+        return self._stop
+
+    @stop.setter
+    def stop(self, value: str | None) -> None:
+        self._stop = value
+
+    @property
+    def resetall(self) -> str | None:
+        return self._resetall
+
+    @resetall.setter
+    def resetall(self, value: str | None) -> None:
+        self._resetall = value
+
+    @property
+    def preload(self) -> str | None:
+        return self._preload
+
+    @preload.setter
+    def preload(self, value: str | None) -> None:
+        self._preload = value
+
+    @property
+    def unload(self) -> str | None:
+        return self._unload
+
+    @unload.setter
+    def unload(self, value: str | None) -> None:
+        self._unload = value
+
+    @property
+    def hwdiscovery(self) -> str | None:
+        return self._hwdiscovery
+
+    @hwdiscovery.setter
+    def hwdiscovery(self, value: str | None) -> None:
+        self._hwdiscovery = value
+
+    @property
+    def deploy(self) -> str | None  :
+        return self._deploy
+
+    @deploy.setter
+    def deploy(self, value: str | None) -> None:
+        self._deploy = value
+
+    @property
+    def test(self) -> str | None:
+        return self._test
+
+    @test.setter
+    def test(self, value: str | None) -> None:
+        self._test = value
+        if value is not None:
+            self.recieved += 1
+
+    @property
+    def recieved(self) -> int:
+        return self._recieved
+
+    @recieved.setter
+    def recieved(self, value: int) -> None:
+        self._recieved = value
+
+    @property
+    def timecode(self) -> int | None:
+        return self._timecode
+
+    @timecode.setter
+    def timecode(self, value: int | None) -> None:
+        self._timecode = value
+
+    @property
+    def currentcue(self) -> list[list[str, str]]:
+        return self._currentcue
+
+    @currentcue.setter
+    def currentcue(self, value: list[str, str] | tuple[str, str]) -> None:
+        """Set a (cue, offset) pair to the current cue list
+        
+        Args:
+            value: A list or tuple of two strings
+        
+        Raises:
+            ValueError: If the value is not a list or tuple of two elements
+
+        Note:
+            Non-string values are converted to strings using str().
+        """
+        if not isinstance(value, (list, tuple)) or len(value) != 2:
+            raise ValueError('Current cue must be a list or tuple of two strings')
+        id, offset = str(value[0]), str(value[1])
+        for item in self._currentcue:
+            if item[0] == id:
+                item[1] = offset
+                return
+        self._currentcue.append([id, offset])
+
+    @currentcue.deleter
+    def currentcue(self) -> None:
+        """Clear all current cue entries."""
+        self._currentcue = []
+    
+    def remove_currentcue(self, cue_id: str) -> None:
+        """Remove a specific cue entry by its ID.
+        
+        Args:
+            cue_id: The ID of the cue to remove
+        """
+        id = str(cue_id)
+        for i, item in enumerate(self._currentcue):
+            if item[0] == id:
+                self._currentcue.pop(i)
+                return
+
+    @property
+    def nextcue(self) -> str | None:
+        return self._nextcue
+
+    @nextcue.setter
+    def nextcue(self, value: str | None) -> None:
+        self._nextcue = value
+
+    @property
+    def running(self) -> int | None:
+        return self._running
+
+    @running.setter
+    def running(self, value: int | None) -> None:
+        self._running = value
+
+    @property
+    def armed(self) -> str | None:
+        return self._armed
+
+    @armed.setter
+    def armed(self, value: str | None) -> None:
+        self._armed = value
diff --git a/src/cuemsengine/core/__init__.py b/src/cuemsengine/core/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/src/cuems/mtcmaster.py b/src/cuemsengine/core/libmtc.py
similarity index 100%
rename from src/cuems/mtcmaster.py
rename to src/cuemsengine/core/libmtc.py
diff --git a/src/cuemsengine/cues/ActionHandler.py b/src/cuemsengine/cues/ActionHandler.py
new file mode 100644
index 0000000..3309795
--- /dev/null
+++ b/src/cuemsengine/cues/ActionHandler.py
@@ -0,0 +1,449 @@
+"""Dedicated action-cue execution, extension hooks, and optional result sink."""
+
+from __future__ import annotations
+
+import threading
+import time
+from dataclasses import dataclass
+from typing import Any, Callable, Literal
+
+from cuemsutils.cues import ActionCue
+from cuemsutils.cues.Cue import Cue
+from cuemsutils.log import Logger
+
+from ..comms.NodesHub import ActionType, NodeOperation, OperationType
+from ..comms.NodeCommunications import NodeCommunications
+from ..tools.MtcListener import MtcListener
+
+# Actions supported by the engine runtime.
+# The XSD schema (script.xsd ActionType) also defines these not-yet-implemented
+# actions: load, unload, wait, pause_project, resume_project.
+SUPPORTED_CUE_ACTIONS = frozenset(
+    {
+        "play",
+        "pause",
+        "stop",
+        "enable",
+        "disable",
+        "fade_in",
+        "fade_out",
+        "go_to",
+    }
+)
+
+HookPhase = Literal["before_dispatch", "after_dispatch", "wrap_dispatch"]
+RegistrationLayer = Literal["cue_layer", "node_layer"]
+
+_ALL_ACTIONS: frozenset[str] = frozenset()
+
+
+def _filter_matches(action_type: str, filter_key: frozenset[str]) -> bool:
+    if not filter_key:
+        return True
+    return action_type in filter_key
+
+
+@dataclass
+class ActionHookContext:
+    """Context passed to extension hooks (stable field names for integrators)."""
+
+    cue: ActionCue
+    target: Cue | None
+    mtc: MtcListener
+    action_type: str
+    target_id: str | None
+    outcome: dict | None = None
+    cue_handler: Any = None
+
+
+class ActionHandler:
+    """Owns ActionCue validation, default handlers, hooks, and result delivery."""
+
+    def __init__(self) -> None:
+        self._cue_handler: Any = None
+        self._lock = threading.Lock()
+        self._hooks: dict[
+            tuple[str, str, frozenset[str]], Callable[[ActionHookContext], Any]
+        ] = {}
+        self._result_sink: Callable[[dict], None] | None = None
+        self._emit_enabled: bool = True
+
+    # ---- binding ----
+
+    def bind_cue_handler(self, cue_handler: Any) -> None:
+        """Bind the singleton cue orchestrator (arm, go, armed lookups)."""
+        self._cue_handler = cue_handler
+
+    def set_result_sink(self, sink: Callable[[dict], None] | None) -> None:
+        """Replace result delivery; None restores default (NNG via comms thread)."""
+        with self._lock:
+            self._result_sink = sink
+
+    def set_emit_enabled(self, enabled: bool) -> None:
+        """When False, suppress outcome emission (useful in tests)."""
+        with self._lock:
+            self._emit_enabled = enabled
+
+    def clear_action_extensions(self) -> None:
+        """Remove all hooks and custom sink (for isolated tests)."""
+        with self._lock:
+            self._hooks.clear()
+            self._result_sink = None
+            self._emit_enabled = True
+
+    # ---- registration ----
+
+    def register_action_hook(
+        self,
+        phase: HookPhase,
+        fn: Callable[[ActionHookContext], Any],
+        *,
+        source: RegistrationLayer = "cue_layer",
+        action_types: frozenset[str] | None = None,
+    ) -> None:
+        """Register a hook; last registration wins for the same (phase, source, filter)."""
+        filter_key = action_types if action_types is not None else _ALL_ACTIONS
+        key = (phase, source, filter_key)
+        with self._lock:
+            self._hooks[key] = fn
+
+    def unregister_action_hook(
+        self,
+        phase: HookPhase,
+        *,
+        source: RegistrationLayer,
+        action_types: frozenset[str] | None = None,
+    ) -> None:
+        filter_key = action_types if action_types is not None else _ALL_ACTIONS
+        key = (phase, source, filter_key)
+        with self._lock:
+            self._hooks.pop(key, None)
+
+    def finalize_node_layer_bindings(self) -> None:
+        """Call from NodeEngine after comms are ready (extension point; default no-op)."""
+        return
+
+    # ---- hook resolution ----
+
+    def _matching_hooks(
+        self, phase: HookPhase, action_type: str
+    ) -> list[tuple[str, Callable[[ActionHookContext], Any]]]:
+        """Return (layer, fn) pairs: cue_layer first, then node_layer."""
+        with self._lock:
+            items = list(self._hooks.items())
+        cue_hooks: list[tuple[str, Callable[[ActionHookContext], Any]]] = []
+        node_hooks: list[tuple[str, Callable[[ActionHookContext], Any]]] = []
+        for (ph, layer, filter_key), fn in items:
+            if ph != phase or not _filter_matches(action_type, filter_key):
+                continue
+            if layer == "cue_layer":
+                cue_hooks.append((layer, fn))
+            else:
+                node_hooks.append((layer, fn))
+        return cue_hooks + node_hooks
+
+    def _wrap_for_action(
+        self, layer: RegistrationLayer, action_type: str
+    ) -> Callable[..., Any] | None:
+        with self._lock:
+            best_specific: Callable[..., Any] | None = None
+            best_all: Callable[..., Any] | None = None
+            for (ph, src, filter_key), fn in self._hooks.items():
+                if ph != "wrap_dispatch" or src != layer:
+                    continue
+                if not filter_key:
+                    best_all = fn
+                elif action_type in filter_key:
+                    best_specific = fn
+            return best_specific if best_specific is not None else best_all
+
+    # ---- result delivery ----
+
+    def _emit_outcome(self, outcome: dict) -> None:
+        with self._lock:
+            sink = self._result_sink
+            emit = self._emit_enabled
+        if not emit:
+            return
+        if sink is not None:
+            try:
+                sink(outcome)
+            except Exception as exc:
+                Logger.error(f"Custom action result sink raised: {exc}")
+            return
+        self._default_result_sink(outcome)
+
+    def _default_result_sink(self, outcome: dict) -> None:
+        ch = self._cue_handler
+        if ch is None:
+            return
+        ct: NodeCommunications | None = getattr(ch, "communications_thread", None)
+        if ct is None:
+            return
+        try:
+            op = NodeOperation(
+                type=OperationType.STATUS,
+                action=ActionType.UPDATE,
+                sender=ct.node_id,
+                target="action_cue_outcome",
+                data=dict(outcome),
+            )
+            ct.send_operation(op, timeout=0.1)
+        except Exception as exc:
+            Logger.debug(f"Default action outcome emit skipped: {exc}")
+
+    # ---- main dispatch ----
+
+    def execute_action(self, cue: ActionCue, mtc: MtcListener) -> dict:
+        action_type = cue.action_type
+        target = cue._action_target_object
+
+        if action_type not in SUPPORTED_CUE_ACTIONS:
+            reason = f"Unsupported action_type: {action_type!r}"
+            Logger.warning(reason)
+            out = self._action_result("rejected", action_type, None, reason)
+            self._emit_outcome(out)
+            return out
+
+        if target is None:
+            reason = (
+                f"Missing target for {action_type} "
+                f"(action_target={cue.action_target!r})"
+            )
+            Logger.warning(reason)
+            out = self._action_result("rejected", action_type, None, reason)
+            self._emit_outcome(out)
+            return out
+
+        target_id = getattr(target, "id", None)
+        ctx = ActionHookContext(
+            cue=cue,
+            target=target,
+            mtc=mtc,
+            action_type=action_type,
+            target_id=target_id,
+            outcome=None,
+            cue_handler=self._cue_handler,
+        )
+
+        # before_dispatch hooks
+        for _layer, hook_fn in self._matching_hooks("before_dispatch", action_type):
+            try:
+                hook_fn(ctx)
+            except Exception as exc:
+                reason = f"before_dispatch hook raised {type(exc).__name__}: {exc}"
+                Logger.error(reason)
+                out = self._action_result("failed", action_type, target_id, reason)
+                self._emit_outcome(out)
+                return out
+
+        handler = _ACTION_HANDLERS.get(action_type)
+        if handler is None:
+            reason = f"No handler registered for {action_type}"
+            Logger.error(reason)
+            out = self._action_result("failed", action_type, target_id, reason)
+            self._emit_outcome(out)
+            return out
+
+        ch = self._cue_handler
+
+        def run_default() -> dict:
+            return handler(ch, target, mtc)
+
+        def apply_wraps() -> dict:
+            inner: Callable[[], dict] = run_default
+            for layer in ("node_layer", "cue_layer"):
+                wfn = self._wrap_for_action(layer, action_type)
+                if wfn is None:
+                    continue
+                prev = inner
+
+                def make_wrapped(
+                    w: Callable[..., Any] = wfn, p: Callable[[], dict] = prev
+                ) -> Callable[[], dict]:
+                    def _w() -> dict:
+                        return w(ctx, p)
+
+                    return _w
+
+                inner = make_wrapped()
+            return inner()
+
+        dispatch_exc: bool
+        try:
+            has_wrap = any(
+                self._wrap_for_action(layer, action_type) is not None
+                for layer in ("cue_layer", "node_layer")
+            )
+            if has_wrap:
+                result = apply_wraps()
+            else:
+                result = run_default()
+            dispatch_exc = False
+        except Exception as exc:
+            dispatch_exc = True
+            reason = (
+                f"{action_type} on {target_id} raised " f"{type(exc).__name__}: {exc}"
+            )
+            Logger.error(reason)
+            result = self._action_result("failed", action_type, target_id, reason)
+
+        ctx.outcome = result
+
+        # after_dispatch hooks (skipped if default handler raised)
+        if not dispatch_exc:
+            for _layer, hook_fn in self._matching_hooks("after_dispatch", action_type):
+                try:
+                    hook_fn(ctx)
+                except Exception as exc:
+                    reason = (
+                        f"after_dispatch hook raised " f"{type(exc).__name__}: {exc}"
+                    )
+                    Logger.error(reason)
+                    result = self._action_result(
+                        "failed", action_type, target_id, reason
+                    )
+                    ctx.outcome = result
+                    break
+            Logger.info(
+                f'Action {action_type} on {target_id}: {result["status"]}'
+                + (f' ({result["reason"]})' if result.get("reason") else "")
+            )
+
+        self._emit_outcome(result)
+        return result
+
+    @staticmethod
+    def _action_result(
+        status: str,
+        action_type: str,
+        target_id: str | None,
+        reason: str | None = None,
+    ) -> dict:
+        return {
+            "status": status,
+            "action_type": action_type,
+            "target_id": target_id,
+            "reason": reason,
+        }
+
+
+# ---------------------------------------------------------------------------
+# Per-action handlers (module-level; signature: (cue_handler, target, mtc))
+# ---------------------------------------------------------------------------
+
+
+def _handle_play(ch: Any, target: Cue, mtc: MtcListener) -> dict:
+    target_id = target.id
+    if not target.enabled:
+        return ActionHandler._action_result(
+            "failed", "play", target_id, "Target is disabled"
+        )
+    if not getattr(target, "loaded", False):
+        ch.arm(target, init=True)
+    if not getattr(target, "loaded", False):
+        return ActionHandler._action_result(
+            "failed", "play", target_id, "Target could not be armed"
+        )
+    target._stop_requested = False
+    try:
+        ch.go(target, mtc)
+    except Exception as exc:
+        return ActionHandler._action_result(
+            "failed", "play", target_id, str(exc)
+        )
+    return ActionHandler._action_result("applied", "play", target_id)
+
+
+def _handle_pause(ch: Any, target: Cue, mtc: MtcListener) -> dict:
+    target_id = target.id
+    if getattr(target, "_stop_requested", False):
+        return ActionHandler._action_result(
+            "applied_no_change", "pause", target_id, "Already stopped/paused"
+        )
+    target._stop_requested = True
+    return ActionHandler._action_result("applied", "pause", target_id)
+
+
+def _handle_stop(ch: Any, target: Cue, mtc: MtcListener) -> dict:
+    target_id = target.id
+    if getattr(target, "_stop_requested", False):
+        return ActionHandler._action_result(
+            "applied_no_change", "stop", target_id, "Already stopped"
+        )
+    target._stop_requested = True
+    target._go_generation = getattr(target, "_go_generation", 0) + 1
+    # Allow loop_cue to see _stop_requested and exit (polls every 20ms)
+    time.sleep(0.1)
+    ch.disarm(target)
+    return ActionHandler._action_result("applied", "stop", target_id)
+
+
+def _handle_enable(ch: Any, target: Cue, mtc: MtcListener) -> dict:
+    target_id = target.id
+    if target.enabled:
+        return ActionHandler._action_result(
+            "applied_no_change", "enable", target_id, "Already enabled"
+        )
+    target.enabled = True
+    return ActionHandler._action_result("applied", "enable", target_id)
+
+
+def _handle_disable(ch: Any, target: Cue, mtc: MtcListener) -> dict:
+    target_id = target.id
+    if not target.enabled:
+        return ActionHandler._action_result(
+            "applied_no_change", "disable", target_id, "Already disabled"
+        )
+    target.enabled = False
+    return ActionHandler._action_result("applied", "disable", target_id)
+
+
+def _handle_fade_in(ch: Any, target: Cue, mtc: MtcListener) -> dict:
+    # TODO: implement fade envelope; currently identical to play
+    Logger.info("fade_in treated as play (fade envelope not yet implemented)")
+    target_id = target.id
+    if not getattr(target, "loaded", False):
+        ch.arm(target, init=True)
+    if not getattr(target, "loaded", False):
+        return ActionHandler._action_result(
+            "failed", "fade_in", target_id, "Target could not be armed"
+        )
+    target._stop_requested = False
+    ch.go(target, mtc)
+    return ActionHandler._action_result("applied", "fade_in", target_id)
+
+
+def _handle_fade_out(ch: Any, target: Cue, mtc: MtcListener) -> dict:
+    # TODO: implement fade envelope; currently identical to stop.
+    # Also has the same zombie-process bug as the old stop handler:
+    # bumps _go_generation but does not call disarm(), so player processes
+    # are not cleaned up. Fix when implementing real fade behavior.
+    Logger.info("fade_out treated as stop (fade envelope not yet implemented)")
+    target_id = target.id
+    target._stop_requested = True
+    target._go_generation = getattr(target, "_go_generation", 0) + 1
+    return ActionHandler._action_result("applied", "fade_out", target_id)
+
+
+def _handle_go_to(ch: Any, target: Cue, mtc: MtcListener) -> dict:
+    # TODO: implement seek/position navigation; currently only arms the target
+    Logger.info("go_to only arms target (seek not yet implemented)")
+    target_id = target.id
+    if not getattr(target, "loaded", False):
+        ch.arm(target, init=True)
+    return ActionHandler._action_result("applied", "go_to", target_id)
+
+
+_ACTION_HANDLERS: dict[str, Callable[[Any, Cue, MtcListener], dict]] = {
+    "play": _handle_play,
+    "pause": _handle_pause,
+    "stop": _handle_stop,
+    "enable": _handle_enable,
+    "disable": _handle_disable,
+    "fade_in": _handle_fade_in,
+    "fade_out": _handle_fade_out,
+    "go_to": _handle_go_to,
+}
+
+ACTION_HANDLER = ActionHandler()
diff --git a/src/cuemsengine/cues/CueHandler.py b/src/cuemsengine/cues/CueHandler.py
new file mode 100644
index 0000000..6985752
--- /dev/null
+++ b/src/cuemsengine/cues/CueHandler.py
@@ -0,0 +1,602 @@
+from __future__ import annotations
+
+from threading import Event, Lock, Thread
+from time import sleep
+from typing import TYPE_CHECKING
+
+from cuemsutils.cues import ActionCue, CueList, DmxCue, VideoCue, AudioCue
+from cuemsutils.cues.Cue import Cue
+from cuemsutils.log import logged, Logger
+from cuemsutils.tools.CTimecode import CTimecode
+
+from ..comms.NodeCommunications import NodeCommunications
+from .run_cue import run_cue
+from .arm_cue import arm_cue
+from .loop_cue import loop_cue
+from ..osc.OssiaClient import PlayerClient
+from ..players import VideoPlayer, VideoClient
+from ..players.PlayerHandler import PLAYER_HANDLER
+from ..tools import MtcListener
+from .arm_cue import arm_cue
+from .loop_cue import loop_cue
+from .run_cue import run_cue
+
+
+class CueHandler:
+    """
+    Singleton class responsible for handling Cue objects.
+
+    Holds a list of armed cues and manages video players.
+    Thread-safe: internal state mutations are guarded by a Lock.
+    """
+
+    _instance: "CueHandler | None" = None
+
+    # Instance attributes (declared for IDE/type checker support)
+    _armed_cues: list[Cue]
+    _armed_cues_set: set[str]
+    _video_players: dict
+    _front_video_player: VideoPlayer | None
+    _lock: Lock
+    communications_thread: NodeCommunications
+
+    def __new__(cls, *args, **kwargs):
+        if cls._instance is None:
+            cls._instance = super().__new__(cls)
+            # Initialize instance attributes
+            cls._instance._armed_cues = []
+            cls._instance._armed_cues_set = set()
+            cls._instance._video_players = {}
+            cls._instance._front_video_player = None
+            cls._instance._lock = Lock()
+        return cls._instance
+
+
+    # ---------------------------
+    # Communications To Controller
+    # ---------------------------
+    def set_nng_comms(self, hub_address: str, node_id: str):
+        """Set the communications infrastructure"""
+        from time import sleep
+        
+        Logger.info(f"Starting communications for Node {node_id}")
+        Logger.info(f"NNG Hub address: {hub_address}")
+        self.communications_thread = NodeCommunications(
+            hub_address=hub_address,
+            node_id=node_id
+        )
+        self.communications_thread.start()
+        
+        # Wait for NNG thread to initialize (prevents race condition in nni_random)
+        max_wait = 5.0  # seconds
+        wait_interval = 0.1
+        waited = 0.0
+        while waited < max_wait:
+            if (self.communications_thread.is_alive() and 
+                self.communications_thread.event_loop is not None):
+                Logger.info(f"NNG communications thread ready after {waited:.1f}s")
+                break
+            sleep(wait_interval)
+            waited += wait_interval
+        else:
+            Logger.warning(f"NNG communications thread not ready after {max_wait}s")
+
+    # ---------------------------
+    # Armed Cues List Methods
+    # ---------------------------
+
+    def add_armed_cue(self, cue: Cue) -> None:
+        """Adds an armed cue to the list."""
+        with self._lock:
+            self._armed_cues.append(cue)
+            self._armed_cues_set.add(cue.id)
+
+    def get_armed_cues(self) -> list[Cue]:
+        """Returns the list of armed cues."""
+        with self._lock:
+            return self._armed_cues
+
+    def get_armed_cue(self, cue: Cue) -> Cue | None:
+        """Returns the armed cue with the given uuid."""
+        try:
+            return self.get_armed_cues().index(cue)
+        except ValueError:
+            return None
+
+    def find_armed_cue(self, cue: Cue) -> Cue | None:
+        """Finds an armed cue with the given uuid."""
+        with self._lock:
+            return cue.id in self._armed_cues_set
+
+    def remove_armed_cue(self, cue: Cue) -> bool:
+        """Removes an armed cue from the list."""
+        with self._lock:
+            if cue.id in self._armed_cues_set:
+                self._armed_cues.remove(cue)
+                self._armed_cues_set.remove(cue.id)
+                return True
+        return False
+
+    def reset_armed_cues(self) -> None:
+        """Resets the list of armed cues."""
+        with self._lock:
+            self._armed_cues = []
+            self._armed_cues_set.clear()
+
+
+    # ---------------------------
+    # Cue Management
+    # ---------------------------
+
+    # Minimum effective duration (ms) for a cue to "count" as providing
+    # enough time to arm subsequent cues during its playback.
+    # Configurable per deployment. Default 1000ms covers 4K video decode.
+    _ARM_WINDOW_THRESHOLD_MS = 1000
+
+    # Maximum cues to walk ahead. Prevents runaway on pathological chains.
+    _MAX_LOOKAHEAD_DEPTH = 15
+
+    @staticmethod
+    def _effective_duration_ms(cue: Cue) -> float:
+        """Effective time a cue occupies: prewait + body + postwait.
+
+        prewait/postwait are always CTimecode (format_timecode returns
+        CTimecode() for None/empty). CTimecode(0) is truthy but
+        .milliseconds returns 0.
+        """
+        pre = cue.prewait.milliseconds
+        post = cue.postwait.milliseconds
+
+        if isinstance(cue, CueList):
+            body = 0  # container — duration is its contents
+        elif isinstance(cue, (AudioCue, VideoCue)):
+            try:
+                body = CTimecode(cue.media.duration).milliseconds if cue.media else 0
+            except Exception:
+                body = 0
+        elif isinstance(cue, DmxCue):
+            # fadein_time/fadeout_time stored as float seconds.
+            # fadeout_time exists in model but not yet implemented (always 0.0).
+            fadein = getattr(cue, 'fadein_time', 0) or 0
+            fadeout = getattr(cue, 'fadeout_time', 0) or 0
+            body = (fadein + fadeout) * 1000  # convert seconds → ms
+        elif isinstance(cue, ActionCue):
+            # play/stop/enable/disable/go_to = instant
+            # TODO: use fade duration once fade_in/fade_out implemented
+            body = 0
+        else:
+            body = 0
+
+        return pre + body + post
+
+    def _arm_ahead(self, start_cue: Cue) -> None:
+        """Arm ahead in the target chain until 2 cues with meaningful
+        duration are armed. Short/zero-duration cues are armed but don't
+        count. CueList targets are skipped (handled by initial_cuelist_process).
+        """
+        target = getattr(start_cue, '_target_object', None)
+        counted = 0
+        walked = 0
+
+        while (isinstance(target, Cue)
+               and counted < 2
+               and walked < self._MAX_LOOKAHEAD_DEPTH):
+            if isinstance(target, CueList):
+                # CueLists are containers — skip, don't count
+                target = getattr(target, '_target_object', None)
+                walked += 1
+                continue
+            if not target.enabled:
+                target = getattr(target, '_target_object', None)
+                walked += 1
+                continue
+            if not getattr(target, 'loaded', False):
+                self.arm(target, init=True)
+            if self._effective_duration_ms(target) >= self._ARM_WINDOW_THRESHOLD_MS:
+                counted += 1
+            target = getattr(target, '_target_object', None)
+            walked += 1
+
+        if walked >= self._MAX_LOOKAHEAD_DEPTH and counted < 2:
+            Logger.warning(
+                f'_arm_ahead hit depth limit ({self._MAX_LOOKAHEAD_DEPTH}) '
+                f'from cue {start_cue.id} with only {counted}/2 real-duration '
+                f'cues found. Remaining cues will rely on safety-net re-arm.')
+
+    def arm(self, cue: Cue, init=False) -> bool:
+        """Arms a cue by appending it to the armed_cues list."""
+        if cue is None:
+            return False
+
+        needs_disarm = False
+        do_arm = False
+        pending_event = None
+
+        with self._lock:
+            found = cue.id in self._armed_cues_set  # O(1) set lookup
+            if hasattr(cue, 'loaded') and cue.loaded:
+                if not cue.enabled:
+                    needs_disarm = True
+            elif isinstance(getattr(cue, '_loading', None), Event):
+                if init:
+                    # Another thread is arming — wait for it outside the lock
+                    pending_event = cue._loading
+                else:
+                    # Non-init callers just register; no need to wait
+                    return False
+            elif not init:
+                if not found:
+                    self._armed_cues.append(cue)
+                    self._armed_cues_set.add(cue.id)
+            elif cue._local and cue.enabled:
+                # Mark as loading inside the lock to block concurrent arm
+                # attempts. Cleared in finally below (outside lock —
+                # intentional: avoids holding lock during arm_cue(). The
+                # Event is set atomically here, so no other thread can
+                # enter this branch for the same cue until _loading is
+                # cleared. Waiting threads block on the Event.)
+                cue._loading = Event()
+                do_arm = True
+
+        # Another thread is arming this cue — wait for it to finish
+        if pending_event is not None:
+            Logger.debug(f'Waiting for in-progress arm of {type(cue).__name__} {cue.id}')
+            armed = pending_event.wait(timeout=5.0)
+            if not armed:
+                Logger.warning(f'Timed out waiting for arm of {cue.id}')
+            return getattr(cue, 'loaded', False)
+
+        # Disarm disabled-but-loaded cues outside lock (disarm acquires lock)
+        if needs_disarm:
+            self.disarm(cue)
+            return False
+
+        if not do_arm:
+            return not needs_disarm
+
+        try:
+            Logger.info(f"Arming {type(cue).__name__} {cue.id}")
+            arm_cue(cue)
+            with self._lock:
+                cue.loaded = True
+                if not found:
+                    self._armed_cues.append(cue)
+                    self._armed_cues_set.add(cue.id)
+            if isinstance(cue, AudioCue):
+                try:
+                    self.communications_thread.add_player(
+                        f'audioplayer_{cue.id}', None, timeout=0.1)
+                except Exception:
+                    pass
+        finally:
+            loading_event = cue._loading
+            cue._loading = None
+            if isinstance(loading_event, Event):
+                loading_event.set()
+
+        # Recursive arms — only reached if cue was actually armed.
+        # _loading sentinel prevents cycles; loaded guard prevents re-arm.
+        if cue.post_go == 'go' and cue._target_object:
+            if cue._target_object.enabled:
+                self.arm(cue._target_object, init)
+
+        # ActionCue(play) + target = 1 unit. Arm target so it's ready
+        # when the action fires (ActionCue has zero duration).
+        # NOTE: fade_in/fade_out are being implemented and will target
+        # already-playing cues — no pre-arm needed yet. Revisit if
+        # fade_in semantics change to start-from-zero like play.
+        if isinstance(cue, ActionCue) and cue._action_target_object:
+            if cue.action_type == 'play':
+                self.arm(cue._action_target_object, init)
+
+        return True
+
+    def disarm(self, cue: Cue) -> bool:
+        """Disarms a cue by removing it from the armed_cues list."""
+        if hasattr(cue, 'loaded') and cue.loaded:
+            self.remove_armed_cue(cue)
+            cue.loaded = False
+            try:
+                if isinstance(cue, AudioCue):
+                    self.communications_thread.remove_player(f'audioplayer_{cue.id}', timeout=0.1)
+                self.communications_thread.remove_cue(cue.id, timeout=0.1)
+            except Exception:
+                pass
+
+            if isinstance(cue, VideoCue):
+                layer_ids = getattr(cue, '_layer_ids', [])
+                client = getattr(cue, '_osc', None)
+                if client and layer_ids:
+                    for layer_id in layer_ids:
+                        try:
+                            client.set_value(f'/videocomposer/layer/{layer_id}/visible', 0)
+                            client.set_value('/videocomposer/layer/unload', layer_id)
+                            client.remove_layer_endpoints(layer_id)
+                            PLAYER_HANDLER.deregister_layer(layer_id)
+                        except Exception as e:
+                            Logger.debug(f'Error disarming video layer {layer_id}: {e}')
+                cue._layer_ids = []
+
+            PLAYER_HANDLER.remove_cue_player(cue)
+            return True
+
+        return False
+
+    def stop_all_cues(self) -> None:
+        """Signal all armed cues to stop their playback loops.
+        
+        Also bumps each cue's generation counter so that any still-running
+        go_threaded threads will see a mismatch and skip post-loop cleanup
+        (disarm), which would otherwise undo the re-arm that follows.
+        """
+        with self._lock:
+            for cue in self._armed_cues:
+                cue._stop_requested = True
+                cue._go_generation = getattr(cue, '_go_generation', 0) + 1
+
+    def disarm_all(self) -> None:
+        """Disarms all cues."""
+        self.stop_all_cues()
+        with self._lock:
+            cues_snapshot = list(self._armed_cues)
+        for cue in cues_snapshot:
+            self.disarm(cue)
+        self.reset_armed_cues()
+
+    def get_next_cue(self, cue: Cue) -> Cue | None:
+        """Returns the next cue to be played."""
+        return cue._target_object if cue._target_object else None
+
+    # ---------------------------
+    # Cue Execution
+    # ---------------------------
+
+    @logged
+    def go(self, cue: Cue, mtc: MtcListener, frozen_mtc_ms: float = None) -> Thread | None:
+        """Starts a cue in a thread.
+
+        Args:
+            cue: The cue to start
+            mtc: The MTC listener
+            frozen_mtc_ms: Optional frozen MTC timestamp for sync with chained cues
+
+        Returns:
+            Thread running the cue, or None if the cue is disabled.
+        """
+        if not cue.enabled:
+            Logger.info(f'Cue {cue.id} is disabled, skipping execution')
+            return None
+        Logger.info(f'GO command received. Starting cue {cue.id}')
+        if not hasattr(cue, 'loaded') or not cue.loaded:
+            Logger.warning(f'Cue {cue.id} not loaded at go() time — this should not happen, '
+                           f'pre-arm may have failed. Re-arming as fallback.')
+            self.arm(cue, init=True)
+            if not hasattr(cue, 'loaded') or not cue.loaded:
+                raise Exception(f'{cue.__class__.__name__} {cue.id} not loaded to go (re-arm failed)')
+
+        cue._stop_requested = False
+        go_gen = getattr(cue, '_go_generation', 0) + 1
+        cue._go_generation = go_gen
+
+        thread = Thread(
+            name=f'GO:{cue.__class__.__name__}:{cue.id}',
+            target=self.go_threaded,
+            args=[cue, mtc, frozen_mtc_ms, go_gen],
+            daemon=True
+        )
+        thread.start()
+
+        # Duration-aware lookahead: arm ahead until 2 cues with
+        # meaningful playback duration are ready.
+        self._arm_ahead(cue)
+        return thread
+
+    def go_threaded(self, cue: Cue, mtc: MtcListener, frozen_mtc_ms: float = None, go_gen: int = 0):
+        """Runs a cue based on its properties.
+        
+        Args:
+            cue: The cue to run
+            mtc: The MTC listener (for live MTC)
+            frozen_mtc_ms: Optional frozen MTC timestamp in milliseconds.
+            go_gen: Generation counter captured at go() time. If the cue's
+                    generation has changed by the time the loop ends, another
+                    go/stop cycle occurred and this thread must not touch the cue.
+        """
+        if cue.prewait > 0:
+            # Notify controller before pre-wait so UI shows "playing" immediately
+            if cue._local and not cue._stop_requested:
+                try:
+                    offset = frozen_mtc_ms if frozen_mtc_ms is not None else 0
+                    self.communications_thread.add_cue(cue.id, str(offset), timeout=0.1)
+                except Exception:
+                    pass
+            sleep(cue.prewait.milliseconds / 1000)
+            # Bail out if stop arrived during pre-wait
+            if cue._stop_requested:
+                return
+
+        if frozen_mtc_ms is None:
+            frozen_mtc_ms = float(mtc.main_tc.milliseconds)
+            Logger.debug(f'Captured MTC snapshot for cue {cue.id}: {frozen_mtc_ms}ms')
+
+        if cue._local:
+            try:
+                self.communications_thread.add_cue(cue.id, str(frozen_mtc_ms), timeout=0.1)
+            except Exception:
+                pass
+
+            run_cue(cue, mtc, frozen_mtc_ms)
+
+        if cue.postwait > 0:
+            sleep(cue.postwait.milliseconds / 1000)
+
+        if cue.post_go == 'go' and cue._target_object and not cue._stop_requested:
+            Logger.info(f'Running post go for next cue:{cue.target}')
+            post_go_thread = self.go(cue._target_object, mtc, frozen_mtc_ms)
+
+        # Pre-arm go_at_end targets during playback. Runs after
+        # run_cue() so current cue is already playing. The arm happens
+        # in parallel with the media. go() also calls _arm_ahead but
+        # that fires before run_cue — this call catches cues that were
+        # disarmed between go() and here (loop passes).
+        if cue.post_go == 'go_at_end':
+            self._arm_ahead(cue)
+
+        Logger.info(f'Going to loop for {cue.__class__.__name__}:{cue.id}')
+        loop_cue(cue, mtc)
+
+        if getattr(cue, '_go_generation', 0) != go_gen:
+            Logger.info(f'Cue {cue.id} generation changed ({go_gen} → {cue._go_generation}), skipping cleanup')
+            return
+
+        # Notify the controller that the cue finished playing (status → 100).
+        # Done here (after loop_cue) so the status only changes to 100 when the
+        # cue has actually completed its full duration, not just when playback started.
+        # Skipped if the cue was stopped (controller's stop_script already resets to 0).
+        if cue._local and not getattr(cue, '_stop_requested', False):
+            try:
+                self.communications_thread.remove_cue(cue.id, timeout=0.1)
+            except Exception:
+                pass
+
+        go_at_end_thread = None
+        if cue.post_go == 'go_at_end' and cue._target_object and not cue._stop_requested:
+            Logger.info(f'Running go at end for {cue.__class__.__name__}:{cue.id}')
+            go_at_end_thread = self.go(cue._target_object, mtc)
+
+        self.disarm(cue)
+
+        if cue.post_go == 'go_at_end' and go_at_end_thread:
+            self.wait_for_cue(go_at_end_thread)
+
+        if cue.post_go == 'go' and cue._target_object and not cue._stop_requested:
+            if post_go_thread:
+                self.wait_for_cue(post_go_thread)
+
+    def wait_for_cue(self, thread: Thread) -> None:
+        """Waits for a cue to finish."""
+        Logger.info(f'Waiting for {thread.name} to finish')
+        while thread.is_alive():
+            sleep(1)
+        thread.join()
+        Logger.info(f"{thread.name} finished")
+
+    # ---------------------------
+    # ---------------------------
+    # Action Cue Execution (delegates to ActionHandler)
+    # ---------------------------
+
+    def execute_action(self, cue: ActionCue, mtc: MtcListener) -> dict:
+        """Execute an ActionCue against the running show (see ActionHandler)."""
+        from .ActionHandler import ACTION_HANDLER
+
+        return ACTION_HANDLER.execute_action(cue, mtc)
+
+    def register_action_hook(
+        self,
+        phase: str,
+        fn,
+        *,
+        action_types: frozenset | None = None,
+    ) -> None:
+        """Register a cue-layer extension hook; forwards to ``ACTION_HANDLER``."""
+        from .ActionHandler import ACTION_HANDLER
+
+        ACTION_HANDLER.register_action_hook(
+            phase, fn, source="cue_layer", action_types=action_types
+        )
+
+    # ---------------------------
+    # OSCQuery Message Routing
+    # ---------------------------
+
+    def route_audio_message(self, path_parts: list[str], value) -> None:
+        """Route audio OSCQuery message to the appropriate handler.
+
+        Args:
+            path_parts: Path parts after 'audio' (e.g., ['mixer', '0', 'master', 'volume']
+                        or ['cue', '<uuid>', '0', 'volume'])
+            value: The OSC value to set
+        """
+        if not path_parts:
+            Logger.warning("Empty audio path parts")
+            return
+
+        if path_parts[0] == 'mixer':
+            # Route to audio mixer: ['mixer', '<output_index>', '<channel>', 'volume']
+            # → /audiomixer/0_mixer/<channel>
+            if len(path_parts) >= 3:
+                output_index = path_parts[1]
+                channel = path_parts[2]
+                mixer_cmd = f'/audiomixer/{output_index}_mixer/{channel}'
+                mixer_client = PLAYER_HANDLER.get_audio_mixer_client()
+                if mixer_client:
+                    Logger.debug(f"Routing audio mixer: {mixer_cmd} = {value}")
+                    mixer_client.set_value(mixer_cmd, float(value))
+                else:
+                    Logger.warning("Audio mixer client not available")
+            else:
+                Logger.warning(f"Invalid mixer path: {path_parts}")
+
+        elif path_parts[0] == 'cue':
+            # Route to cue player: ['cue', '<uuid>', '<channel>', 'volume']
+            # → /vol<channel> on the armed cue's OSC client
+            if len(path_parts) >= 3:
+                cue_uuid = path_parts[1]
+                channel = path_parts[2]
+                audio_cmd = f'/vol{channel}'
+                cue = self.get_armed_cue_by_id(cue_uuid)
+                if cue and hasattr(cue, '_osc') and cue._osc:
+                    # UI already sends 0.0-1.0 via sliderToFloat(); just clamp
+                    vol_value = max(0.0, min(1.0, float(value)))
+                    Logger.debug(f"Routing audio cue {cue_uuid}: {audio_cmd} = {vol_value}")
+                    cue._osc.set_value(audio_cmd, vol_value)
+                else:
+                    Logger.warning(f"Cue {cue_uuid} not found or has no OSC client")
+            else:
+                Logger.warning(f"Invalid cue audio path: {path_parts}")
+        else:
+            Logger.warning(f"Unknown audio path type: {path_parts[0]}")
+
+    def route_dmx_message(self, path_parts: list[str], value) -> None:
+        """Route DMX OSCQuery message to the DMX player.
+
+        Args:
+            path_parts: Path parts after 'dmx' (e.g., ['mixer', '0', 'channel', '1'])
+            value: The OSC value to set
+        """
+        if not path_parts:
+            Logger.warning("Empty DMX path parts")
+            return
+
+        # Build DMX command from path: find 'mixer' and use everything after it
+        if 'mixer' in path_parts:
+            mixer_index = path_parts.index('mixer') + 1  # +1 to skip 'mixer' keyword
+            dmx_cmd = '/' + '/'.join(path_parts[mixer_index:])
+            dmx_client = PLAYER_HANDLER.get_dmx_player_client()
+            if dmx_client:
+                Logger.debug(f"Routing DMX: {dmx_cmd} = {value}")
+                dmx_client.set_value(dmx_cmd, value)
+            else:
+                Logger.warning("DMX player client not available")
+        else:
+            Logger.warning(f"Invalid DMX path (no 'mixer' keyword): {path_parts}")
+
+    def get_armed_cue_by_id(self, cue_id: str) -> Cue | None:
+        """Returns the armed cue with the given uuid string."""
+        with self._lock:
+            for cue in self._armed_cues:
+                if cue.id == cue_id:
+                    return cue
+        return None
+
+
+# ---------------------------
+# Singleton
+# ---------------------------
+
+CUE_HANDLER = CueHandler()
+
+from .ActionHandler import ACTION_HANDLER as _ACTION_HANDLER_SINGLETON
+
+_ACTION_HANDLER_SINGLETON.bind_cue_handler(CUE_HANDLER)
diff --git a/src/cuemsengine/cues/__init__.py b/src/cuemsengine/cues/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/src/cuemsengine/cues/arm_cue.py b/src/cuemsengine/cues/arm_cue.py
new file mode 100644
index 0000000..3c349f7
--- /dev/null
+++ b/src/cuemsengine/cues/arm_cue.py
@@ -0,0 +1,169 @@
+from functools import singledispatch
+from os import path
+
+from cuemsutils.cues import AudioCue, DmxCue, VideoCue
+from cuemsutils.cues.Cue import Cue
+from cuemsutils.log import Logger
+
+from ..players.PlayerHandler import PLAYER_HANDLER
+from ..players import AudioClient, DmxClient, VideoClient
+
+@singledispatch
+def arm_cue(cue: Cue):
+    """
+    Type-specific logic when arming a cue
+    """
+    pass
+
+@arm_cue.register
+def arm_audioCue(cue: AudioCue):
+    PLAYER_HANDLER.new_audio_output(cue)
+
+@arm_cue.register
+def arm_dmxCue(cue: DmxCue):
+    """Arm a DMX cue by extracting DMX scene data.
+    
+    The DMX scene data is already loaded in the cue object from the script XML.
+    We extract the universe and channel data from cue.DmxScene and store it
+    in a format suitable for sending as OSC bundles to the local DMX player.
+    
+    Note: cue._local should be set by check_mappings() based on the output_name.
+    For DMX cues, the output_name format is "{node_uuid}" (just the node UUID).
+    A DMX cue can have multiple outputs (one per target node). check_mappings()
+    should iterate through all outputs and set _local=True if ANY output_name
+    matches the current node UUID. Other outputs are ignored.
+    This function is only called for local cues (checked in CueHandler.arm()).
+    """
+    # Verify that _local is set (should be set by check_mappings() from output_name)
+    is_local = getattr(cue, '_local', True)
+    if not is_local:
+        Logger.warning(
+            f'DMX cue {cue.id} is not local but arm_dmxCue was called. '
+            f'This should not happen - check_mappings() should set _local from output_name.',
+            extra = {"caller": cue.__class__.__name__}
+        )
+        return
+    
+    # Get the local DMX player client
+    dmx_client = PLAYER_HANDLER.get_dmx_player_client()
+    
+    if dmx_client is None:
+        Logger.error(
+            f'No local DMX player available for cue {cue.id}',
+            extra = {"caller": cue.__class__.__name__}
+        )
+        return
+    
+    # Assign the local DMX player client to the cue
+    cue._osc = dmx_client
+    Logger.debug(
+        f"DMX cue {cue.id} will use local DMX player (output_name inferred _local={is_local})",
+        extra = {"caller": cue.__class__.__name__}
+    )
+    
+    # Extract frame data from the DmxScene
+    try:
+        universe_frames = {}
+        
+        # Check if the cue has a DmxScene
+        if cue.DmxScene is None:
+            Logger.warning(
+                f"DMX cue {cue.id} has no DmxScene data",
+                extra = {"caller": cue.__class__.__name__}
+            )
+            cue._dmx_frames = {}
+            return
+        
+        # Extract universe data from the DmxScene
+        dmx_universe = cue.DmxScene.DmxUniverse
+        if dmx_universe is not None:
+            universe_num = dmx_universe.universe_num
+            channels_data = {}
+            
+            # Extract channel data from dmx_channels list
+            if dmx_universe.dmx_channels:
+                for dmx_channel in dmx_universe.dmx_channels:
+                    channel_num = dmx_channel.channel
+                    channel_value = dmx_channel.value
+                    channels_data[channel_num] = channel_value
+            
+            if channels_data:
+                universe_frames[universe_num] = channels_data
+        
+        # Store the parsed frame data in the cue for use when running
+        cue._dmx_frames = universe_frames
+        
+        if universe_frames:
+            total_channels = sum(len(channels) for channels in universe_frames.values())
+            Logger.info(
+                f"DMX cue {cue.id} armed: {len(universe_frames)} universe(s), {total_channels} channel(s)",
+                extra = {"caller": cue.__class__.__name__}
+            )
+        else:
+            Logger.warning(
+                f"DMX cue {cue.id} armed but no channel data found in DmxScene",
+                extra = {"caller": cue.__class__.__name__}
+            )
+            
+    except Exception as e:
+        Logger.error(
+            f'Error arming DMX cue {cue.id}: {e}',
+            extra = {"caller": cue.__class__.__name__}
+        )
+        Logger.exception(e)
+        # Set empty frames to avoid errors when running
+        cue._dmx_frames = {}
+
+@arm_cue.register
+def arm_videoCue(cue: VideoCue):
+    try:
+        client = PLAYER_HANDLER.get_video_client()
+        if client is None:
+            Logger.error(f'No video client available for cue {cue.id}')
+            return
+        cue._osc = client
+    except Exception as e:
+        Logger.error(f'Error retrieving video client for cue {cue.id}: {e}')
+        Logger.exception(e)
+        return
+
+    output_names = PLAYER_HANDLER.get_all_cue_output_names(cue)
+    if not output_names:
+        Logger.error(f'No output names found for video cue {cue.id}')
+        return
+
+    video_path = PLAYER_HANDLER.media_path(cue.media['file_name'])
+    cue._layer_ids = []
+
+    driver_layer_id = None
+    for index, output_name in enumerate(output_names):
+        layer_id = f"{cue.id}_{index}"
+
+        if index == 0:
+            # First output: normal load (creates decoder)
+            client.set_value('/videocomposer/layer/load', [video_path, layer_id])
+            driver_layer_id = layer_id
+        else:
+            # Subsequent outputs: share decoder from first layer
+            client.set_value('/videocomposer/layer/load_shared',
+                             [video_path, layer_id, driver_layer_id])
+        client.create_layer_endpoints(layer_id)
+
+        layer_path = f'/videocomposer/layer/{layer_id}'
+        client.set_value(f'{layer_path}/visible', 0)
+        client.set_value(f'{layer_path}/autounload', 1)
+
+        try:
+            output = PLAYER_HANDLER.get_video_output(output_name)
+            x, y = output.get_layer_placement()
+            client.set_value(f'{layer_path}/position', [x, y])
+            sx, sy = output.get_layer_scale()
+            if sx != 1.0 or sy != 1.0:
+                client.set_value(f'{layer_path}/scale', [sx, sy])
+        except Exception as e:
+            Logger.warning(f'Video output "{output_name}" placement/scale failed ({type(e).__name__}: {e}), skipping for layer {layer_id}')
+
+        PLAYER_HANDLER.register_layer(layer_id)
+        cue._layer_ids.append(layer_id)
+
+    Logger.info(f"Video cue {cue.id} armed: {len(cue._layer_ids)} layer(s) for {video_path}")
diff --git a/src/cuemsengine/cues/helpers.py b/src/cuemsengine/cues/helpers.py
new file mode 100644
index 0000000..c6fb399
--- /dev/null
+++ b/src/cuemsengine/cues/helpers.py
@@ -0,0 +1,36 @@
+from cuemsutils.cues.Cue import Cue
+from cuemsutils.tools.CTimecode import CTimecode
+from ..tools.MtcListener import MtcListener
+
+def find_timing(
+    cue: Cue, mtc: MtcListener, in_frames: bool = False
+) -> tuple[int, CTimecode]:
+    """Find the duration and offset of a cue
+    
+    Args:
+        cue (Cue): The cue with _start_mtc defined to find the timing
+        mtc (Mtc): The main timecode object
+        in_frames (bool): If True, return the offset in frames instead of milliseconds
+        
+    Returns:
+        tuple[int, CTimecode]: The offset in frames and the duration
+    """
+    if not cue._start_mtc:
+        cue._start_mtc = CTimecode(start_seconds=mtc.main_tc.milliseconds/1000)
+
+    if in_frames:
+        time_attribute = "frame_number"
+    else:
+        time_attribute = "milliseconds"
+
+    # Calculate duration
+    duration = cue.media.regions[0].out_time - cue.media.regions[0].in_time
+    duration = duration.return_in_other_framerate(mtc.main_tc.framerate)
+    # Set cue end timecode
+    cue._end_mtc = cue._start_mtc + duration
+    in_time_fr_adjusted = cue.media.regions[0].in_time.return_in_other_framerate(
+        mtc.main_tc.framerate
+    )
+    # Calculate offset to go
+    offset_to_go = in_time_fr_adjusted[time_attribute] - cue._start_mtc[time_attribute]
+    return offset_to_go, duration
diff --git a/src/cuemsengine/cues/loop_cue.py b/src/cuemsengine/cues/loop_cue.py
new file mode 100644
index 0000000..aab99b2
--- /dev/null
+++ b/src/cuemsengine/cues/loop_cue.py
@@ -0,0 +1,242 @@
+import time
+from functools import singledispatch
+from time import sleep
+
+from cuemsutils.cues import ActionCue, AudioCue, CueList, DmxCue, VideoCue
+from cuemsutils.cues.Cue import Cue
+from cuemsutils.log import Logger
+
+from ..tools.MtcListener import MtcListener, CTimecode
+
+# #region DEBUG
+import os as _dbg_os
+from datetime import datetime as _dbg_dt
+_DBG_LOG = '/tmp/.claude/debug.log'
+try:
+    _dbg_os.makedirs(_dbg_os.path.dirname(_DBG_LOG), exist_ok=True)
+except Exception:
+    pass
+def _dbg(msg):
+    try:
+        with open(_DBG_LOG, 'a') as _f:
+            _f.write(f"[{_dbg_dt.now().isoformat()}] [ENGINE] [DEBUG H3 H4 H6 H7] {msg}\n")
+    except Exception:
+        pass
+# #endregion DEBUG
+
+# Node-side throttle constant for future cue percentage updates sent to the
+# Controller via NNG (Tier 1 of the two-tier throttle strategy).
+# Each cue independently limits its update rate to this value.
+# At 2 Hz with 5 concurrent cues across 2 remote nodes the Controller receives
+# ~20 NNG msg/s (~4 KB/s over LAN) -- well within the NNG receiver budget.
+# The Controller applies a second throttle (CUE_BROADCAST_MIN_INTERVAL in
+# ControllerEngine) before forwarding updates to the UI via WebSocket (Tier 2).
+# To enable percentage updates: uncomment the throttled block inside each
+# loop_*Cue polling loop and increase this value if smoother UI is needed.
+CUE_STATUS_UPDATE_HZ = 2
+
+@singledispatch
+def loop_cue(cue: Cue, mtc: MtcListener):
+    """
+    Loop a cue based on its type
+    """
+    pass
+
+@loop_cue.register
+def loop_cueList(cue: CueList, mtc: MtcListener):
+    """
+    Loop a CueList
+    """
+    pass
+
+@loop_cue.register
+def loop_actionCue(cue: ActionCue, mtc: MtcListener):
+    """
+    Loop an ActionCue
+    """
+    pass
+
+@loop_cue.register
+def loop_audioCue(cue: AudioCue, mtc: MtcListener):
+    """Handle the audio media playback loop.
+        
+    This method manages the playback loop for audio media, including handling
+    looping behavior and OSC communication for timing control.
+    
+    Args:
+        ossia: The OSC communication interface.
+        mtc: The MIDI Time Code interface.
+    """
+    Logger.info(f'Running audio cue loop {cue.id}, cue.loop={cue.loop} (type={type(cue.loop).__name__})')
+    
+    try:
+        loop_counter = 0
+        duration = CTimecode(cue.media.duration).return_in_other_framerate(mtc.main_tc.framerate)
+        Logger.info(f'Audio duration: {duration}, _end_mtc: {cue._end_mtc.milliseconds}ms, current MTC: {mtc.main_tc.milliseconds}ms')
+
+        while cue.loop < 1 or loop_counter < cue.loop:
+            if cue._stop_requested:
+                Logger.info(f'Audio loop {cue.id} cancelled by stop request')
+                return
+            Logger.info(f'Audio loop iteration starting: loop_counter={loop_counter}, cue.loop={cue.loop}')
+
+            last_status_update = 0.0
+            while mtc.main_tc.milliseconds < cue._end_mtc.milliseconds:
+                if cue._stop_requested:
+                    Logger.info(f'Audio loop {cue.id} cancelled by stop request (inner)')
+                    return
+                sleep(0.02)
+                # Future: uncomment to enable percentage progress updates.
+                # Throttled to CUE_STATUS_UPDATE_HZ (Tier 1 / node-side).
+                # _now = time.monotonic()
+                # if _now - last_status_update >= 1.0 / CUE_STATUS_UPDATE_HZ:
+                #     last_status_update = _now
+                #     _elapsed = mtc.main_tc.milliseconds - cue._start_mtc.milliseconds
+                #     _total = cue._end_mtc.milliseconds - cue._start_mtc.milliseconds
+                #     if _total > 0:
+                #         _pct = max(1, min(99, int(100 * _elapsed / _total)))
+                #         CUE_HANDLER.communications_thread.update_cue(cue.id, _pct, timeout=0.1)
+
+            Logger.info(f'Audio iteration {loop_counter + 1} finished (MTC={mtc.main_tc.milliseconds}ms reached _end_mtc={cue._end_mtc.milliseconds}ms)')
+            loop_counter += 1
+            
+            will_loop_again = cue.loop < 1 or loop_counter < cue.loop
+            Logger.info(f'After increment: loop_counter={loop_counter}, will_loop_again={will_loop_again}')
+            
+            if cue._local and will_loop_again:
+                cue._start_mtc = CTimecode(framerate=cue._end_mtc.framerate, frames=cue._end_mtc.frames)
+                cue._end_mtc = cue._start_mtc + duration
+
+                offset_to_go = float(-cue._start_mtc.milliseconds)
+                
+                Logger.info(f'Loop {loop_counter}: setting offset={offset_to_go} (MTC={mtc.main_tc.milliseconds}ms, _start_mtc={cue._start_mtc.milliseconds}ms, _end_mtc={cue._end_mtc.milliseconds}ms)')
+                
+                # #region DEBUG
+                _dbg(f"AUDIO send /offset cue={cue.id} loop={loop_counter} mtc_ms={mtc.main_tc.milliseconds} start_mtc_ms={cue._start_mtc.milliseconds} offset_ms={offset_to_go}")
+                # #endregion DEBUG
+                try:
+                    cue._osc.set_value('/offset', offset_to_go)
+                    Logger.info(f"Audio offset sent: {offset_to_go}", extra={"caller": cue.__class__.__name__})
+                except Exception as e:
+                    Logger.error(f'Audio offset send failed: {e}', extra={"caller": cue.__class__.__name__})
+
+        Logger.info(f'Audio loop FINISHED: loop_counter={loop_counter}, cue.loop={cue.loop}')
+        if cue._local:
+            try:
+                cue._osc.set_value('/mtcfollow', 0)
+                Logger.info(f"Audio mtcfollow disabled", extra={"caller": cue.__class__.__name__})
+            except Exception as e:
+                Logger.warning(f'Error disabling mtcfollow: {e}', extra={"caller": cue.__class__.__name__})
+
+    except AttributeError:
+        pass
+
+@loop_cue.register
+def loop_dmxCue(cue: DmxCue, mtc: MtcListener):
+    """Handle the DMX cue duration wait.
+    
+    DMX scenes are fire-and-forget (sent once in run_dmxCue), so we only wait 
+    for the cue duration to elapse to maintain proper script timing.
+    The cue._local guard is maintained for potential future looping implementation.
+    
+    Args:
+        cue: The DmxCue
+        mtc: The MIDI Time Code interface
+    """
+    try:
+        last_status_update = 0.0
+        while mtc.main_tc.milliseconds < cue._end_mtc.milliseconds:
+            if cue._stop_requested:
+                Logger.info(f'DMX loop {cue.id} cancelled by stop request')
+                return
+            sleep(0.02)
+            # Future: uncomment to enable percentage progress updates.
+            # Throttled to CUE_STATUS_UPDATE_HZ (Tier 1 / node-side).
+            # _now = time.monotonic()
+            # if _now - last_status_update >= 1.0 / CUE_STATUS_UPDATE_HZ:
+            #     last_status_update = _now
+            #     _elapsed = mtc.main_tc.milliseconds - cue._start_mtc.milliseconds
+            #     _total = cue._end_mtc.milliseconds - cue._start_mtc.milliseconds
+            #     if _total > 0:
+            #         _pct = max(1, min(99, int(100 * _elapsed / _total)))
+            #         CUE_HANDLER.communications_thread.update_cue(cue.id, _pct, timeout=0.1)
+
+        if cue._local:
+            pass
+
+        Logger.debug(f'DMX cue {cue.id} duration elapsed')
+
+    except AttributeError:
+        pass
+
+@loop_cue.register
+def loop_videoCue(cue: VideoCue, mtc: MtcListener):
+    """Handle the video media playback loop.
+        
+    Manages looping behavior for all layers in cue._layer_ids,
+    updating offset via the single VideoClient in cue._osc.
+    """
+    Logger.info(f'Running video cue loop {cue.id}, cue.loop={cue.loop} (type={type(cue.loop).__name__})')
+    
+    try:
+        loop_counter = 0
+        duration = CTimecode(cue.media.duration).return_in_other_framerate(mtc.main_tc.framerate)
+        Logger.info(f'Video duration: {duration}, duration in frames: {duration.frame_number} {duration.framerate}')
+        Logger.info(f'Initial _end_mtc: {cue._end_mtc.milliseconds}ms, current MTC: {mtc.main_tc.milliseconds}ms')
+
+        layer_ids = getattr(cue, '_layer_ids', [])
+
+        # Tell the videocomposer this is a looping cue so it wraps frames at the
+        # loop boundary (instead of clamping to the last frame).
+        for layer_id in layer_ids:
+            try:
+                cue._osc.set_value(f'/videocomposer/layer/{layer_id}/loop', 1)
+            except Exception as e:
+                Logger.error(f'Loop enable failed for layer {layer_id}: {e}')
+
+        while cue.loop < 1 or loop_counter < cue.loop:
+            if cue._stop_requested:
+                Logger.info(f'Video loop {cue.id} cancelled by stop request')
+                return
+            last_status_update = 0.0
+            while mtc.main_tc.milliseconds < cue._end_mtc.milliseconds:
+                if cue._stop_requested:
+                    Logger.info(f'Video loop {cue.id} cancelled by stop request (inner)')
+                    return
+                sleep(0.02)
+                # Future: uncomment to enable percentage progress updates.
+                # Throttled to CUE_STATUS_UPDATE_HZ (Tier 1 / node-side).
+                # _now = time.monotonic()
+                # if _now - last_status_update >= 1.0 / CUE_STATUS_UPDATE_HZ:
+                #     last_status_update = _now
+                #     _elapsed = mtc.main_tc.milliseconds - cue._start_mtc.milliseconds
+                #     _total = cue._end_mtc.milliseconds - cue._start_mtc.milliseconds
+                #     if _total > 0:
+                #         _pct = max(1, min(99, int(100 * _elapsed / _total)))
+                #         CUE_HANDLER.communications_thread.update_cue(cue.id, _pct, timeout=0.1)
+
+            Logger.info(f'Video iteration {loop_counter + 1} finished (MTC={mtc.main_tc.milliseconds}ms reached _end_mtc={cue._end_mtc.milliseconds}ms)')
+            loop_counter += 1
+            
+            will_loop_again = cue.loop < 1 or loop_counter < cue.loop
+            
+            if cue._local and will_loop_again:
+                cue._start_mtc = CTimecode(framerate=cue._end_mtc.framerate, frames=cue._end_mtc.frames)
+                cue._end_mtc = cue._start_mtc + duration
+                offset_change_frames = -cue._start_mtc.frame_number
+                
+                Logger.info(f'Loop {loop_counter}: setting offset={offset_change_frames}')
+                
+                # #region DEBUG
+                _dbg(f"VIDEO send /offset cue={cue.id} loop={loop_counter} mtc_ms={mtc.main_tc.milliseconds} start_mtc_ms={cue._start_mtc.milliseconds} start_mtc_frame={cue._start_mtc.frame_number} offset_frames={int(offset_change_frames)} fr={mtc.main_tc.framerate} layers={layer_ids}")
+                # #endregion DEBUG
+                for layer_id in layer_ids:
+                    try:
+                        cue._osc.set_value(f'/videocomposer/layer/{layer_id}/offset', int(offset_change_frames))
+                    except Exception as e:
+                        Logger.error(f'Offset send failed for layer {layer_id}: {e}')
+
+        Logger.info(f'Loop FINISHED: loop_counter={loop_counter}, cue.loop={cue.loop}')
+        
+    except AttributeError:
+        pass
diff --git a/src/cuemsengine/cues/run_cue.py b/src/cuemsengine/cues/run_cue.py
new file mode 100644
index 0000000..3b6cd73
--- /dev/null
+++ b/src/cuemsengine/cues/run_cue.py
@@ -0,0 +1,309 @@
+from functools import singledispatch
+from cuemsutils.cues import ActionCue, AudioCue, CueList, DmxCue, VideoCue
+from cuemsutils.cues.Cue import Cue
+from cuemsutils.log import Logger
+from cuemsutils.tools.CTimecode import CTimecode
+
+from ..tools.MtcListener import MtcListener
+from ..players.PlayerHandler import PLAYER_HANDLER
+from .helpers import find_timing
+
+@singledispatch
+def run_cue(cue: Cue, mtc: MtcListener, frozen_mtc_ms: float = None):
+    """
+    Run a cue based on its type.
+    
+    Args:
+        cue: The cue to run
+        mtc: The MTC listener (for framerate info)
+        frozen_mtc_ms: Optional frozen MTC timestamp in milliseconds.
+                       When provided (e.g., for chained cues with post_go='go'),
+                       this timestamp is used instead of reading live MTC.
+                       This ensures perfect sync between audio and video cues.
+    """
+    pass
+
+@run_cue.register
+def run_cueList(cue: CueList, mtc: MtcListener, frozen_mtc_ms: float = None):
+    """Run a CueList by dispatching its first enabled child."""
+    if cue.contents:
+        first_enabled = next((c for c in cue.contents if c.enabled), None)
+        if first_enabled:
+            run_cue(first_enabled, mtc, frozen_mtc_ms)
+
+@run_cue.register
+def run_actionCue(cue: ActionCue, mtc: MtcListener, frozen_mtc_ms: float = None):
+    """Run an ActionCue by delegating to ActionHandler.execute_action."""
+    from .ActionHandler import ACTION_HANDLER
+
+    ACTION_HANDLER.execute_action(cue, mtc)
+
+
+@run_cue.register
+def run_audioCue(cue: AudioCue, mtc, frozen_mtc_ms: float = None):
+    """
+    Run an AudioCue
+    
+    Args:
+        cue: The audio cue to run
+        mtc: The MTC listener (for framerate info)
+        frozen_mtc_ms: Optional frozen MTC timestamp for perfect sync with chained cues
+    """
+    # CRITICAL FOR SYNC: Use frozen timestamp if provided (for post_go='go' chains)
+    # Otherwise read live MTC. This ensures audio and video cues share the same reference.
+    if frozen_mtc_ms is not None:
+        mtc_ms = frozen_mtc_ms
+        Logger.debug(f'AudioCue {cue.id} using frozen MTC: {mtc_ms}ms')
+    else:
+        mtc_ms = float(mtc.main_tc.milliseconds)
+    
+    cue._start_mtc = CTimecode(framerate=mtc.main_tc.framerate, start_seconds=mtc_ms/1000)
+    # Convert duration to MTC framerate to prevent drift when looping
+    duration = CTimecode(cue.media.duration).return_in_other_framerate(mtc.main_tc.framerate)
+    cue._end_mtc = cue._start_mtc + duration
+    
+    # Audio player formula: file_position = MTC + offset
+    # To play from position 0 when MTC = start_mtc, we need offset = -start_mtc
+    offset_to_go = float(-cue._start_mtc.milliseconds)
+    
+    # Verify mixer graph; only repair if drifted. Arm already wired it; the
+    # unconditional reconnect at GO costs ~21-28 ms (measured) without
+    # touching the audio path.
+    try:
+        mixer = PLAYER_HANDLER.get_audio_mixer()
+        if mixer:
+            uuid_slug = ''.join(str(cue.id).split('-'))
+            # Actual JACK client name is Audio_Player-{uuid} with ports "outport 0", "outport 1"
+            player_name = f'Audio_Player-{uuid_slug}'
+
+            # Resolve JACK port names from cue output IDs via audio output lookup
+            selected_outputs = []
+            if hasattr(cue, 'outputs') and cue.outputs:
+                for output in cue.outputs:
+                    output_name = output.get('output_name', '')
+                    if len(output_name) > 37:
+                        output_id = output_name[37:]
+                        port_name = PLAYER_HANDLER.resolve_audio_port(output_id)
+                        if port_name:
+                            selected_outputs.append(port_name)
+                        else:
+                            selected_outputs.append(output_id)
+
+            Logger.debug(f"Audio cue {cue.id} selected outputs: {selected_outputs}")
+
+            # If the player's outport 0 is missing, the subprocess died between
+            # arm and GO. connect_player_to_outputs would block 15 s in its
+            # port-wait loop before failing; abort fast instead.
+            channel_0 = f'{player_name}:outport 0'
+            if not mixer.conn_man.port_exists(channel_0):
+                Logger.error(
+                    f"Audio cue {cue.id}: player JACK ports missing at GO "
+                    f"({channel_0}); subprocess likely crashed between arm "
+                    f"and GO. Aborting cue."
+                )
+                return
+
+            if mixer.player_connections_correct(
+                player_name=player_name,
+                player_output_prefix='outport',
+                selected_outputs=selected_outputs,
+            ):
+                Logger.debug(f"Audio cue {cue.id}: graph already wired, skipping connect")
+            else:
+                Logger.warning(
+                    f"Audio cue {cue.id}: graph not wired correctly at GO; "
+                    f"repairing via connect_player_to_outputs"
+                )
+                mixer.connect_player_to_outputs(
+                    player_name=player_name,
+                    player_output_prefix='outport',
+                    selected_outputs=selected_outputs,
+                )
+    except Exception as e:
+        Logger.warning(f"Could not validate/connect player to mixer: {e}")
+    
+    # Define the offset - use MTC framerate for consistent timing with video
+    try:
+        key = '/offset'
+
+        cue._osc.set_value(key, offset_to_go)
+        Logger.info(
+            f"offset {offset_to_go} to {key}: {str(cue._osc.get_node(key).parameter.value)}",
+            extra = {"caller": cue.__class__.__name__}
+        )
+    except Exception as e:
+        Logger.warning(
+            f'Error setting offset in run_audioCue: {e}',
+            extra = {"caller": cue.__class__.__name__}
+        )
+
+    # Connect to mtc signal
+    try:
+        key = '/mtcfollow'
+        cue._osc.set_value(key, 1)
+    except Exception as e:
+        Logger.warning(
+            f'Error setting mtcfollow in run_audioCue: {e}',
+            extra = {"caller": cue.__class__.__name__}
+        )
+    
+    # Apply master volume from cue settings
+    try:
+        master_vol = getattr(cue, 'master_vol', None)
+        if master_vol is not None:
+            # UI uses 0-100 percentage, audioplayer expects 0.0-1.0 gain
+            # Convert and clamp to valid range
+            vol_value = max(0.0, min(1.0, float(master_vol) / 100.0))
+            cue._osc.set_value('/volmaster', vol_value)
+            Logger.info(
+                f"master_vol {master_vol}% -> {vol_value} set on audio cue {cue.id}",
+                extra = {"caller": cue.__class__.__name__}
+            )
+    except Exception as e:
+        Logger.warning(
+            f'Error setting master volume in run_audioCue: {e}',
+            extra = {"caller": cue.__class__.__name__}
+        )
+
+@run_cue.register
+def run_dmxCue(cue: DmxCue, mtc, frozen_mtc_ms: float = None):
+    """
+    Run a DmxCue
+    
+    Sends DMX scene bundle directly to the local DMX player.
+    Synchronized with MTC. The scene contains frame data, timing, and fade info.
+    DMX cues have no media duration - duration is inferred from fade times.
+    Only fadein_time is used for now. fade_out defaults to 0
+    
+    Args:
+        cue: The DMX cue to run
+        mtc: The MTC listener (for framerate info)
+        frozen_mtc_ms: Optional frozen MTC timestamp for perfect sync with chained cues
+    """
+    try:
+        # CRITICAL FOR SYNC: Use frozen timestamp if provided (for post_go='go' chains)
+        if frozen_mtc_ms is not None:
+            mtc_ms = frozen_mtc_ms
+            Logger.debug(f'DmxCue {cue.id} using frozen MTC: {mtc_ms}ms')
+        else:
+            mtc_ms = float(mtc.main_tc.milliseconds)
+        
+        # Calculate MTC timing - use explicit framerate for consistency
+        cue._start_mtc = CTimecode(framerate=mtc.main_tc.framerate, start_seconds=mtc_ms/1000)
+        
+        # DMX cues have no media - duration is inferred from fade times
+        # Duration = fadein_time + fadeout_time (both in milliseconds)
+        fadein_ms = getattr(cue, 'fadein_time', 0)
+        fadeout_ms = getattr(cue, 'fadeout_time', 0)
+        duration_ms = fadein_ms + fadeout_ms
+        
+        # Convert duration to timecode format with explicit framerate
+        duration_seconds = duration_ms / 1000.0
+        duration = CTimecode(framerate=mtc.main_tc.framerate, start_seconds=duration_seconds)
+        cue._end_mtc = cue._start_mtc + duration
+        
+        # Absolute MTC time for this cue (ms). DMX player expects mtc_time as absolute
+        # "0:0:S.sss" string so it can schedule m_mtcStart = max(playHead, time).
+        offset_milliseconds = cue._start_mtc.milliseconds
+        mtc_time_str = f"0:0:{offset_milliseconds / 1000.0}"
+        
+        # Get DMX frame data from the cue
+        universe_frames = getattr(cue, '_dmx_frames', {})
+        
+        if not universe_frames:
+            Logger.warning(
+                f"DMX cue {cue.id} has no frame data to send",
+                extra = {"caller": cue.__class__.__name__}
+            )
+            return
+        
+        # Convert fadein_time to seconds for the DMX player (only fadein is used for now)
+        fade_time = fadein_ms / 1000.0
+        
+        # Check if we have an OSC client
+        if cue._osc is None:
+            Logger.error(
+                f"DMX cue {cue.id} has no OSC client available",
+                extra = {"caller": cue.__class__.__name__}
+            )
+            return
+        
+        # Enable MTC following so the dmxplayer tracks timecode and stops
+        # advancing when MTC stops (e.g. on STOP command).
+        cue._osc.enable_mtcfollow()
+
+        # Send DMX scene bundle to local player (mtc_time absolute so no overlap/loss)
+        cue._osc.send_dmx_scene(
+            universe_frames=universe_frames,
+            mtc_time=mtc_time_str,
+            fade_time=fade_time
+        )
+        
+        Logger.info(
+            f"DMX scene sent to local player for cue {cue.id}: "
+            f"mtc_time={mtc_time_str} ({offset_milliseconds}ms), universes={len(universe_frames)}, fade={fade_time}s",
+            extra = {"caller": cue.__class__.__name__}
+        )
+        
+    except Exception as e:
+        Logger.error(
+            f'Error running DMX cue {cue.id}: {e}',
+            extra = {"caller": cue.__class__.__name__}
+        )
+        Logger.exception(e)
+
+@run_cue.register
+def run_videoCue(cue: VideoCue, mtc, frozen_mtc_ms: float = None):
+    """Run a VideoCue.
+    
+    Sends offset/visible/mtcfollow to all layers in cue._layer_ids
+    via the single VideoClient in cue._osc.
+    """
+    Logger.info(f'Running video cue {cue.id}')
+
+    layer_ids = getattr(cue, '_layer_ids', [])
+    if not layer_ids or cue._osc is None:
+        Logger.error(f'Video cue {cue.id} has no layers or no OSC client')
+        return
+
+    if frozen_mtc_ms is not None:
+        mtc_ms = frozen_mtc_ms
+        Logger.debug(f'VideoCue {cue.id} using frozen MTC: {mtc_ms}ms')
+    else:
+        mtc_ms = float(mtc.main_tc.milliseconds)
+
+    cue._start_mtc = CTimecode(framerate=mtc.main_tc.framerate, start_seconds=mtc_ms/1000)
+    duration = CTimecode(cue.media.duration).return_in_other_framerate(mtc.main_tc.framerate)
+    cue._end_mtc = cue._start_mtc + duration
+    offset_to_go = -cue._start_mtc.frame_number
+
+    client = cue._osc
+
+    # Re-apply position for each layer before making visible (layer may not have
+    # been ready when position was set during arm)
+    output_names = PLAYER_HANDLER.get_all_cue_output_names(cue)
+
+    for index, layer_id in enumerate(layer_ids):
+        layer_path = f'/videocomposer/layer/{layer_id}'
+
+        # Re-apply canvas position from the output config
+        if index < len(output_names):
+            output_name = output_names[index]
+            try:
+                output = PLAYER_HANDLER.get_video_output(output_name)
+                x, y = output.get_layer_placement()
+                client.set_value(f'{layer_path}/position', [x, y])
+                sx, sy = output.get_layer_scale()
+                if sx != 1.0 or sy != 1.0:
+                    client.set_value(f'{layer_path}/scale', [sx, sy])
+            except (KeyError, Exception) as e:
+                Logger.warning(f'Could not re-apply position for layer {layer_id}: {e}')
+
+        client.set_value(f'{layer_path}/offset', int(offset_to_go))
+        # Send mtcfollow before visible so the videocomposer loads the
+        # correct frame (using offset + MTC position) while the layer is
+        # still invisible. This prevents rendering a stale frame.
+        client.set_value(f'{layer_path}/mtcfollow', 1)
+        client.set_value(f'{layer_path}/visible', 1)
+
+    Logger.info(f"Video cue {cue.id} running: {len(layer_ids)} layer(s), offset={offset_to_go}")
diff --git a/src/cuemsengine/osc/OssiaClient.py b/src/cuemsengine/osc/OssiaClient.py
new file mode 100644
index 0000000..b4386da
--- /dev/null
+++ b/src/cuemsengine/osc/OssiaClient.py
@@ -0,0 +1,74 @@
+from time import sleep
+from typing import Union
+
+from cuemsutils.log import Logger
+
+from ..tools.PortHandler import PORT_HANDLER
+from .OssiaNodes import OssiaNodes, STARTUP_DELAY
+from .helpers import ClientDevices, ClientSetupFunction
+from pyossia import ossia
+
+OSCCLIENT_LOCAL_PORT = 9009
+OSCCLIENT_REMOTE_PORT = 9001
+
+class OssiaClient(OssiaNodes):
+    def __init__(
+        self,
+        host: str = "127.0.0.1",
+        local_port: int = OSCCLIENT_LOCAL_PORT,
+        remote_port: int = OSCCLIENT_REMOTE_PORT,
+        remote_type: ClientSetupFunction = ClientDevices.OSC,
+        endpoints: Union[dict, list] | None = None,
+        name: str = "cuems"
+    ):
+        super().__init__()
+        self.host = host
+        self.name = name
+        self.remote_port = remote_port
+        self.local_port = local_port
+        self.bind_device(remote_type)
+        # In OSCQuery clients do not create nodes, just read them
+        if endpoints and remote_type == ClientDevices.OSC:
+            self.create_endpoints(endpoints)
+
+    def bind_device(self, remote_type: ClientSetupFunction):
+        Logger.info(f"Using remote device: {remote_type.__annotations__['return']}")
+        self.device = remote_type(self)
+        sleep(STARTUP_DELAY)
+        if not self.device:
+            raise RuntimeError("OssiaClient device not bound")
+        Logger.debug(f"OssiaClient device bound: {self.device}")
+
+        # Skip nodes_from_device() for OSCQuery clients to preserve GMQ functionality
+        if remote_type == ClientDevices.OSCQUERY:
+            self.nodes = {}
+        else:
+            try:
+                self.nodes = self.nodes_from_device()
+            except Exception as e:
+                Logger.warning(f"nodes_from_device() failed: {e}")
+                self.nodes = {}
+
+    def add_node_creation_callback(self, callback: callable):
+        Logger.debug(f"Now adding callback to {self.device}")
+        _ = ossia.DeviceCallback(self.device, callback, callback, callback)
+
+
+class NodeClient(OssiaClient):
+    def __init__(self, host: str, local_port: int, endpoints: dict):
+        super().__init__(
+            host = host,
+            local_port = local_port,
+            remote_type = ClientDevices.OSCQUERY,
+            endpoints = endpoints
+        )
+
+class PlayerClient(OssiaClient):
+    def __init__(self, player_port: int, endpoints: dict, name: str = "player"):
+        super().__init__(
+            local_port = PORT_HANDLER.new_random_port(),
+            remote_port = player_port,
+            remote_type = ClientDevices.OSC,
+            endpoints = endpoints,
+            name = name
+        )
diff --git a/src/cuemsengine/osc/OssiaNodes.py b/src/cuemsengine/osc/OssiaNodes.py
new file mode 100644
index 0000000..bc3b6f8
--- /dev/null
+++ b/src/cuemsengine/osc/OssiaNodes.py
@@ -0,0 +1,226 @@
+from inspect import signature
+from pyossia import Node, ValueType, ossia
+from typing import Union, Any, Callable
+from time import sleep
+from cuemsutils.log import logged, Logger
+
+CLEANUP_DELAY = 0.3
+STARTUP_DELAY = 0.3
+
+class OssiaNodes(object):
+    """Manage a collection of OSC nodes.
+    
+    Internal static methods allow to:
+        - add nodes
+        - remove nodes
+        - set node parameters
+        - set node values
+        - get node values
+        - set endpoints (nodes with parameters)
+
+    Multiple endpoints can be set simultaenously with:
+        - list of paths.
+        - dictionary of paths (k) and parameter arguments (v)
+
+    Parameter arguments must be lists containing:
+        - `pyossia.ValueType`
+        - callback function (*optional*)
+        - initial / default value (*optional*)
+        - **Note**: to set a parameter value without a callback, pass None as the second argument
+    
+    """
+    def __init__(self):
+        self.device = None
+        self.nodes = {}
+
+
+    def iterate_on_children(self, node):
+        for child in node.children():
+            print(str(child))
+            self.iterate_on_children(child)
+
+    def set_node(self, path: str):
+        """Add a new node to the device
+            Node memory address is stored in self.nodes[path]
+            and must be kept to access the node later
+        """
+        if not self.device:
+            raise AttributeError("No device found")
+        try:
+            self.nodes[path] = self.device.add_node(path)
+        except AttributeError:
+            self.nodes[path] = self.device.root_node.add_node(path)
+
+    def get_node(self, path: str):
+        """Get a node from the collection
+        """
+        return self.nodes[path]
+    
+    def remove_node(self, path: str):
+        """Remove a node from the collection and all its children
+        """
+        if not path or path.strip('/') == '':
+            return
+        self.device.root_node.remove_child(path)
+        children = [k for k in self.nodes.keys() if str(k).startswith(path)]
+        for key in children:
+            del self.nodes[str(key)]
+
+    def remove_device(self) -> None:
+        """Remove the device and all nodes from the collection
+        """
+        node_keys = list(self.nodes.keys())
+        for node in node_keys:
+            self.remove_node(node)
+        self.nodes = {}
+        del self.device
+        sleep(CLEANUP_DELAY)
+        self.device = None
+
+    @staticmethod
+    def set_parameter(node: Node, value_type, callback: Callable = None, value = None, repetition_filter = True):
+        """Set a parameter to a node
+        """
+        if not isinstance(value_type, ValueType):
+            raise ValueError("value_type must be a pyossia.ValueType")
+        _ = node.create_parameter(value_type)
+        # Impulse parameters are fire-and-forget triggers — RepetitionFilter
+        # must always be OFF, otherwise ossia silently drops repeated sends.
+        if value_type == ValueType.Impulse:
+            repetition_filter = False
+        _.repetition_filter = ossia.RepetitionFilter.On if repetition_filter else ossia.RepetitionFilter.Off
+        _.access_mode = ossia.AccessMode.Bi
+        if callback:
+            l = len(signature(callback).parameters)
+            if l == 1:
+                _.add_callback(callback)
+            elif l == 2:
+                _.add_callback_param(callback)
+            else:
+                raise ValueError("callback must have 1 or 2 parameters")
+        if value:
+            _.value = value
+
+    def set_node_callback(self, node: Node, callback: Callable) -> None:
+        """Set a callback to a node
+        """
+        Logger.debug(f"Setting callback for node {str(node)}")
+        l = len(signature(callback).parameters)
+        if l == 1:
+            node.parameter.add_callback(callback)
+        elif l == 2:
+            node.parameter.add_callback_param(callback)
+        else:
+            raise ValueError(f"callback must have 1 or 2 parameters, not {l}")
+
+    @logged
+    def set_value(self, node: Union[Node, str], value) -> None:
+        """Set a value to a node
+        Parameters:
+            - node: The node to set the value to
+                - str: The path of the node
+                - Node: The node object
+            - value: The value to set to the node
+
+        Raises:
+            - ValueError: If the node is not found
+            - ValueError: If the value could not be set to the node
+        """
+        if isinstance(node, str):
+            try:
+                node = self.nodes[node]
+            except KeyError:
+                raise ValueError("Node not found")
+        # Impulse parameters: pyossia rejects None — use True to trigger the send
+        if node.parameter.value_type == ValueType.Impulse:
+            node.parameter.push_value(True)
+            return
+        node.parameter.push_value(value)
+        stored = node.parameter.value
+        # Float parameters go through float32 (OSC wire format), so an exact
+        # Python float64 equality check produces false negatives (e.g. 0.66).
+        # Use a tolerance-based comparison for floats; strict equality for all others.
+        if isinstance(value, float):
+            if abs(stored - value) > 1e-5:
+                raise ValueError(f"Could not set {str(node)} to {value} (got {stored})")
+        elif stored != value:
+            raise ValueError(f"Could not set {str(node)} to {value}")
+
+    @logged
+    def get_value(self, node: Union[Node, str]):
+        """Get a value from a node
+        Parameters:
+            - node: The node to get the value from
+                - str: The path of the node
+                - Node: The node object
+
+        Returns:
+            - value: The value of the node
+        
+        Raises:
+            - ValueError: If the node is not found
+        """
+        if isinstance(node, str):
+            try:
+                node = self.nodes[node]
+            except KeyError:
+                raise ValueError("Node not found")
+        return node.parameter.value
+
+    def create_endpoint(self, path: str, param_args: list | None = None):
+        """Create an endpoint as a node with parameter
+        """
+        try:
+            self.set_node(path)
+            if param_args and isinstance(param_args, list):
+                self.set_parameter(self.nodes[path], *param_args)
+            Logger.debug(f"Created endpoint: {path}")
+        except Exception as e:
+            Logger.error(f"Failed to create endpoint {path}: {type(e).__name__}: {e}")
+            raise
+
+    @logged
+    def create_endpoints(self, paths: dict[str, Any] | list[str]):
+        """Create multiple endpoints
+        """
+        if isinstance(paths, list):
+            for path in paths:
+                self.create_endpoint(path)
+        elif isinstance(paths, dict):
+            for path, params in paths.items():
+                self.create_endpoint(path, params)
+
+    def get_endpoints(self) -> dict[str, list[Any]]:
+        """Get all endpoints (node paths with their parameter arguments)
+        
+        """
+        # endpoints_raw = self.iterate_on_children(self.device.root_node)
+        Logger.info(f"Getting endpoints from device: {self.device}")
+        endpoints = {}
+        for path, node in self.nodes.items():
+            if node.parameter:
+                endpoints[path] = [node.parameter.value_type, None, node.parameter.value]
+        return endpoints
+
+    def nodes_from_device(self, node: Node = None) -> dict[str, Node]:
+        nodes = {}
+        is_root = node is None
+        if is_root:
+            node = self.device.root_node
+        Logger.debug(f"{self.__class__.__name__} Node {node.name} has {len(node.children())} children")
+        if len(node.children()) == 0:
+            if not is_root:
+                nodes[str(node)] = node
+            return nodes        
+        for n, i in enumerate[int, Node](node.children()):
+            Logger.debug(f"Adding child {n} named {i.name}")
+            nodes.update(self.nodes_from_device(i))
+            # DEV: iteration raises RuntimeError at the end of the loop
+            if  n + 1 == len(node.children()):
+                Logger.debug(f"All children from {node.name} added")
+                break
+        return nodes
+
+    def __del__(self):
+        self.remove_device()
+        del self
diff --git a/src/cuemsengine/osc/OssiaServer.py b/src/cuemsengine/osc/OssiaServer.py
new file mode 100644
index 0000000..31cd71d
--- /dev/null
+++ b/src/cuemsengine/osc/OssiaServer.py
@@ -0,0 +1,51 @@
+# from threading import Thread
+from pyossia import LocalDevice
+from typing import Union
+from time import sleep
+
+from .OssiaNodes import OssiaNodes, STARTUP_DELAY
+from .helpers import ServerDevices, ServerSetupFunction
+
+OSCSERVER_LOCAL_PORT = 9000
+OSCSERVER_REMOTE_PORT = 9001
+
+class OssiaServer(OssiaNodes):
+    def __init__(
+            self,
+            name: str | None = None,
+            log: bool = False,
+            host: str = "127.0.0.1",
+            remote_port: int = OSCSERVER_REMOTE_PORT,
+            local_port: int = OSCSERVER_LOCAL_PORT,
+            server: ServerSetupFunction = ServerDevices.OSC,
+            endpoints: Union[dict, list] | None = None
+        ):
+        super().__init__()
+        if not name:
+            name = self.__class__.__name__
+        self.name = name
+        self.host = host
+        self.device = LocalDevice(name)
+        self.logging = log
+        self.remote_port = remote_port
+        self.local_port = local_port
+        self.setup_server(server)
+        if endpoints:
+            self.create_endpoints(endpoints)
+
+    def setup_server(self, server: ServerSetupFunction) -> None:
+        """Create a local OSC server
+        
+        Create a local device and set it up to handle oscquery or osc requests
+        """
+        if not self.device:
+            raise RuntimeError("OssiaServer device not bound")
+        done = server(self)
+        sleep(STARTUP_DELAY)
+        self.started = done
+        if not done:
+            self.remove_device()
+            raise Exception("Server setup failed")
+        
+    def add_endpoints(self, endpoints) -> None:
+        self.create_endpoints(endpoints)
diff --git a/src/cuemsengine/osc/PyOsc.py b/src/cuemsengine/osc/PyOsc.py
new file mode 100644
index 0000000..d248c18
--- /dev/null
+++ b/src/cuemsengine/osc/PyOsc.py
@@ -0,0 +1,69 @@
+from pythonosc.dispatcher import Dispatcher
+from pythonosc.osc_server import ThreadingOSCUDPServer
+from pythonosc.osc_message import OscMessage
+from pythonosc.udp_client import SimpleUDPClient
+from threading import Thread
+
+PYOSC_HOST = "127.0.0.1"
+PYOSC_PORT = 10001
+PYOSC_MSG_TIMEOUT = 0.001
+
+def new_osc_client(cls) -> SimpleUDPClient:
+    return SimpleUDPClient(cls.host, cls.port)
+
+class PyOscClient(object):
+    def __init__(self, host = PYOSC_HOST, port = PYOSC_PORT):
+        self.host = host
+        self.port = port
+        self.client = new_osc_client(self)
+    
+    def send_message(self, address: str, *args) -> None:
+        self.client.send_message(address, args)
+
+    def get_first_message(self, timeout = PYOSC_MSG_TIMEOUT) -> OscMessage:
+        res = self.client.get_messages(timeout)
+        msg = next(res)
+        return msg
+    
+    def send_with_response(self, address: str, *args) -> OscMessage:
+        self.send_message(address, *args)
+        return self.get_first_message()
+
+class PyOscServer(object):
+    def __init__(self, host = PYOSC_HOST, port = PYOSC_PORT, endpoints = []):
+        self.host = host
+        self.port = port
+        self.endpoints = endpoints
+        self.dispatcher = Dispatcher()
+        self.handlers = {}
+        self.server = self.new_server()
+    
+    def start(self) -> None:
+        self.thread = Thread(
+            target = self.server.serve_forever,
+            daemon = True
+        )
+        self.thread.start()
+
+    def stop(self) -> None:
+        self.server.shutdown()
+        self.server.server_close()
+        self.thread.join()
+
+    def new_server(self) -> ThreadingOSCUDPServer:
+        self.add_handlers()
+        return ThreadingOSCUDPServer(
+            (self.host, self.port),
+            self.dispatcher
+        )
+
+    def add_handlers(self) -> None:
+        """
+        Add handlers to the dispatcher and store them in the handlers dict
+        """
+        if len(self.endpoints) == 0:
+            return
+        for endpoint_,function_ in self.endpoints.items():
+            self.handlers[endpoint_] = self.dispatcher.map(
+                endpoint_, function_
+            )
diff --git a/src/cuemsengine/osc/WebSocketOscHandler.py b/src/cuemsengine/osc/WebSocketOscHandler.py
new file mode 100644
index 0000000..77b7990
--- /dev/null
+++ b/src/cuemsengine/osc/WebSocketOscHandler.py
@@ -0,0 +1,361 @@
+"""WebSocket OSC Handler for receiving OSC messages via WebSocket.
+
+This module provides an async WebSocket listener that receives and parses
+OSC messages sent over WebSocket connections (as used by OSCQuery protocol).
+It bypasses pyossia's unreliable WebSocket handling while keeping pyossia
+for OSCQuery discovery and metadata.
+
+Usage:
+    In an AsyncCommsThread subclass:
+    
+    async def websocket_osc_task(self):
+        await websocket_osc_listener(
+            host="0.0.0.0",
+            port=9190,
+            message_handler=self.handle_osc_message,
+            stop_check=lambda: self.stop_requested
+        )
+    
+    def create_all_tasks(self):
+        return [
+            asyncio.create_task(self.websocket_osc_task()),
+            # ... other tasks
+        ]
+"""
+
+import asyncio
+from typing import Callable, Optional, Any
+
+from cuemsutils.log import Logger
+
+try:
+    import websockets
+    from websockets.server import serve as websocket_serve
+    from websockets.exceptions import ConnectionClosed
+except ImportError:
+    websockets = None
+    websocket_serve = None
+    ConnectionClosed = Exception
+
+try:
+    from pythonosc.osc_message import OscMessage
+    from pythonosc.osc_message_builder import OscMessageBuilder
+    from pythonosc.parsing import osc_types
+except ImportError:
+    OscMessage = None
+    OscMessageBuilder = None
+    osc_types = None
+
+
+def parse_osc_message(data: bytes) -> tuple[str, list[Any]] | None:
+    """Parse a binary OSC message.
+    
+    Args:
+        data: Raw binary OSC message data
+        
+    Returns:
+        Tuple of (address, arguments) if successful, None if parsing fails
+    """
+    if not osc_types:
+        Logger.error("python-osc library not available")
+        return None
+        
+    try:
+        # OSC message format: address (null-padded to 4 bytes), type tag string, arguments
+        # Use pythonosc's parsing utilities
+        address, index = osc_types.get_string(data, 0)
+        
+        if index >= len(data):
+            # No type tag string - address-only message (like an impulse)
+            return (address, [])
+        
+        # Get type tag string
+        type_tags, index = osc_types.get_string(data, index)
+        
+        if not type_tags.startswith(','):
+            Logger.warning(f"Invalid OSC type tag string: {type_tags}")
+            return (address, [])
+        
+        # Parse arguments based on type tags
+        args = []
+        for tag in type_tags[1:]:  # Skip the leading ','
+            if tag == 'i':
+                value, index = osc_types.get_int(data, index)
+                args.append(value)
+            elif tag == 'f':
+                value, index = osc_types.get_float(data, index)
+                args.append(value)
+            elif tag == 's':
+                value, index = osc_types.get_string(data, index)
+                args.append(value)
+            elif tag == 'b':
+                value, index = osc_types.get_blob(data, index)
+                args.append(value)
+            elif tag == 'T':
+                args.append(True)
+            elif tag == 'F':
+                args.append(False)
+            elif tag == 'N':
+                args.append(None)
+            elif tag == 'I':
+                # Impulse/Infinitum - no value
+                args.append(None)
+            elif tag == 't':
+                # OSC timetag (8 bytes)
+                value, index = osc_types.get_timetag(data, index)
+                args.append(value)
+            elif tag == 'd':
+                # Double precision float
+                value, index = osc_types.get_double(data, index)
+                args.append(value)
+            else:
+                Logger.warning(f"Unknown OSC type tag: {tag}")
+        
+        return (address, args)
+        
+    except Exception as e:
+        Logger.debug(f"Error parsing OSC message: {e}")
+        return None
+
+
+async def handle_websocket_connection(
+    websocket,
+    message_handler: Callable[[str, list[Any]], None],
+    stop_check: Callable[[], bool],
+    client_set: Optional[set] = None,
+    on_connect: Optional[Callable] = None
+) -> None:
+    """Handle a single WebSocket connection.
+
+    Args:
+        websocket: The WebSocket connection
+        message_handler: Callback function to handle parsed OSC messages.
+                        Called with (address: str, args: list)
+        stop_check: Function that returns True when the listener should stop
+        client_set: Optional set to track connected clients for broadcast. If provided,
+                    websocket is added on connect and removed on disconnect.
+        on_connect: Optional async callback called with the websocket after connection
+                    is established. Used for sending initial state to new clients.
+    """
+    if client_set is not None:
+        client_set.add(websocket)
+    client_info = f"{websocket.remote_address}" if hasattr(websocket, 'remote_address') else "unknown"
+    Logger.info(f"WebSocket OSC client connected: {client_info}")
+
+    if on_connect is not None:
+        try:
+            await on_connect(websocket)
+        except Exception as e:
+            Logger.error(f"Error in on_connect callback: {e}")
+
+    try:
+        async for message in websocket:
+            if stop_check():
+                break
+                
+            # OSCQuery sends OSC messages as binary WebSocket frames
+            if isinstance(message, bytes):
+                parsed = parse_osc_message(message)
+                if parsed:
+                    address, args = parsed
+                    Logger.debug(f"WebSocket OSC received: {address} = {args}")
+                    try:
+                        message_handler(address, args)
+                    except Exception as e:
+                        Logger.error(f"Error in OSC message handler for {address}: {e}")
+            else:
+                # Text message - might be JSON for OSCQuery protocol
+                Logger.debug(f"WebSocket text message received (ignored): {message[:100] if len(message) > 100 else message}")
+                
+    except ConnectionClosed:
+        Logger.debug(f"WebSocket OSC client disconnected: {client_info}")
+    except Exception as e:
+        Logger.error(f"WebSocket OSC connection error: {e}")
+    finally:
+        if client_set is not None:
+            client_set.discard(websocket)
+        Logger.debug(f"WebSocket OSC connection closed: {client_info}")
+
+
+def build_osc_message(address: str, value: Any) -> Optional[bytes]:
+    """Build a binary OSC message for the given address and value.
+    
+    Args:
+        address: OSC address (e.g. '/engine/status/running')
+        value: Value to send. Type is inferred: str -> 's', int -> 'i', float -> 'f'.
+        
+    Returns:
+        Bytes to send over WebSocket, or None if building failed.
+    """
+    if not OscMessageBuilder:
+        Logger.warning("pythonosc not available - cannot build OSC message")
+        return None
+    try:
+        builder = OscMessageBuilder(address)
+        if value is None:
+            builder.add_arg('')
+        elif isinstance(value, bool):
+            builder.add_arg(value)
+        elif isinstance(value, str):
+            builder.add_arg(value)
+        elif isinstance(value, int):
+            builder.add_arg(value)
+        elif isinstance(value, float):
+            builder.add_arg(value)
+        else:
+            builder.add_arg(str(value))
+        msg = builder.build()
+        return msg.dgram
+    except Exception as e:
+        Logger.debug(f"Error building OSC message: {e}")
+        return None
+
+
+async def websocket_osc_listener(
+    host: str,
+    port: int,
+    message_handler: Callable[[str, list[Any]], None],
+    stop_check: Callable[[], bool],
+    existing_server_check: Optional[Callable[[], bool]] = None,
+    client_set: Optional[set] = None,
+    on_connect: Optional[Callable] = None
+) -> None:
+    """Async WebSocket OSC listener.
+    
+    Listens for WebSocket connections and parses incoming binary OSC messages.
+    Routes parsed messages to the provided handler callback.
+    
+    Args:
+        host: Host address to bind to (e.g., "0.0.0.0" or "127.0.0.1")
+        port: Port to listen on (typically the OSCQuery WebSocket port)
+        message_handler: Callback function to handle parsed OSC messages.
+                        Called with (address: str, args: list)
+        stop_check: Function that returns True when the listener should stop
+        existing_server_check: Optional function that returns True if an existing
+                              server is already listening on the port. If True,
+                              the listener will not start its own server.
+    
+    Note:
+        The OSCQuery protocol uses the same WebSocket port for both discovery
+        (JSON messages) and OSC value updates (binary messages). This listener
+        only processes binary OSC messages and ignores JSON messages.
+        
+        If pyossia's OSCQuery server is already using the port, you may need
+        to either:
+        1. Disable pyossia's WebSocket handler and use this one exclusively
+        2. Run this on a different port and update the UI configuration
+        3. Intercept messages at a different layer
+    """
+    if not websockets:
+        Logger.error("websockets library not available - cannot start WebSocket OSC listener")
+        return
+    
+    if existing_server_check and existing_server_check():
+        Logger.info(f"Existing server detected on {host}:{port}, WebSocket OSC listener not starting own server")
+        return
+    
+    Logger.info(f"Starting WebSocket OSC listener on ws://{host}:{port}")
+    
+    try:
+        async with websocket_serve(
+            lambda ws: handle_websocket_connection(ws, message_handler, stop_check, client_set, on_connect),
+            host,
+            port,
+            # Allow concurrent connections
+            max_size=2**20,  # 1 MB max message size
+            # Ping/pong for keepalive
+            ping_interval=20,
+            ping_timeout=20,
+        ):
+            Logger.info(f"WebSocket OSC listener started on ws://{host}:{port}")
+            # Keep running until stop is requested
+            while not stop_check():
+                await asyncio.sleep(0.1)
+                
+    except OSError as e:
+        if "already in use" in str(e).lower() or e.errno == 98:
+            Logger.warning(f"WebSocket port {port} already in use (likely by pyossia OSCQuery server)")
+            Logger.info("WebSocket OSC listener will not start - pyossia is handling WebSocket connections")
+            Logger.info("Commands will be received via HTTP polling fallback")
+        else:
+            Logger.error(f"WebSocket OSC listener error: {e}")
+    except Exception as e:
+        Logger.error(f"WebSocket OSC listener error: {e}")
+    finally:
+        Logger.info("WebSocket OSC listener stopped")
+
+
+class WebSocketOscRouter:
+    """Routes OSC messages to registered handlers based on address patterns.
+    
+    This class provides a simple routing mechanism for OSC messages, allowing
+    handlers to be registered for specific OSC addresses or address patterns.
+    
+    Usage:
+        router = WebSocketOscRouter()
+        router.register('/engine/command/go', handle_go_command)
+        router.register('/engine/command/*', handle_any_command)  # Wildcard
+        
+        # In the message handler:
+        def handle_osc_message(address, args):
+            router.route(address, args)
+    """
+    
+    def __init__(self):
+        self._handlers: dict[str, Callable[[str, list[Any]], None]] = {}
+        self._wildcard_handlers: list[tuple[str, Callable[[str, list[Any]], None]]] = []
+    
+    def register(self, pattern: str, handler: Callable[[str, list[Any]], None]) -> None:
+        """Register a handler for an OSC address pattern.
+        
+        Args:
+            pattern: OSC address or pattern. Use '*' at the end for wildcard matching.
+                    e.g., '/engine/command/go' for exact match
+                    e.g., '/engine/command/*' for prefix match
+            handler: Callback function to handle messages matching the pattern.
+                    Called with (address: str, args: list)
+        """
+        if pattern.endswith('/*'):
+            prefix = pattern[:-1]  # Remove trailing '*', keep '/'
+            self._wildcard_handlers.append((prefix, handler))
+            Logger.debug(f"Registered wildcard OSC handler: {pattern}")
+        else:
+            self._handlers[pattern] = handler
+            Logger.debug(f"Registered OSC handler: {pattern}")
+    
+    def route(self, address: str, args: list[Any]) -> bool:
+        """Route an OSC message to the appropriate handler.
+        
+        Args:
+            address: OSC address (e.g., '/engine/command/go')
+            args: List of OSC arguments
+            
+        Returns:
+            True if a handler was found and called, False otherwise
+        """
+        # Check exact match first
+        if address in self._handlers:
+            try:
+                self._handlers[address](address, args)
+                return True
+            except Exception as e:
+                Logger.error(f"Error in OSC handler for {address}: {e}")
+                return False
+        
+        # Check wildcard handlers
+        for prefix, handler in self._wildcard_handlers:
+            if address.startswith(prefix):
+                try:
+                    handler(address, args)
+                    return True
+                except Exception as e:
+                    Logger.error(f"Error in wildcard OSC handler for {address}: {e}")
+                    return False
+        
+        Logger.debug(f"No handler registered for OSC address: {address}")
+        return False
+    
+    def clear(self) -> None:
+        """Remove all registered handlers."""
+        self._handlers.clear()
+        self._wildcard_handlers.clear()
diff --git a/src/cuemsengine/osc/__init__.py b/src/cuemsengine/osc/__init__.py
new file mode 100644
index 0000000..728b35f
--- /dev/null
+++ b/src/cuemsengine/osc/__init__.py
@@ -0,0 +1,21 @@
+from pyossia import __value_types__ as VALUE_TYPES_DICT
+
+from .OssiaClient import OssiaClient, ClientDevices
+from .OssiaServer import OssiaServer, ServerDevices
+from .OssiaNodes import ValueType
+from .endpoints import OSC_AUDIOPLAYER_CONF as AUDIO_ENDPOINTS, OSC_DMXPLAYER_CONF as DMX_ENDPOINTS, OSC_VIDEOPLAYER_CONF as VIDEO_ENDPOINTS, OSC_VIDEOPLAYER_LAYER_CONF as VIDEO_LAYER_ENDPOINTS, OSC_ENGINE_CMD_CONF as ENGINE_CMD_ENDPOINTS, OSC_PLAYERS_DICT as PLAYERS_ENDPOINTS_DICT
+
+__all__ = [
+    "VALUE_TYPES_DICT",
+    "OssiaClient",
+    "ClientDevices",
+    "OssiaServer",
+    "ServerDevices",
+    "ValueType",
+    "AUDIO_ENDPOINTS",
+    "DMX_ENDPOINTS",
+    "VIDEO_ENDPOINTS",
+    "VIDEO_LAYER_ENDPOINTS",
+    "ENGINE_CMD_ENDPOINTS",
+    "PLAYERS_ENDPOINTS_DICT"
+]
diff --git a/src/cuemsengine/osc/endpoints.py b/src/cuemsengine/osc/endpoints.py
new file mode 100644
index 0000000..1a636b3
--- /dev/null
+++ b/src/cuemsengine/osc/endpoints.py
@@ -0,0 +1,99 @@
+from pyossia import ValueType
+
+OSC_AUDIOPLAYER_CONF = {
+    '/quit' : [ValueType.Impulse, None],
+    '/load' : [ValueType.String, None], 
+    '/vol0' : [ValueType.Float, None],
+    '/vol1' : [ValueType.Float, None],
+    '/volmaster' : [ValueType.Float, None],
+    '/play' : [ValueType.Impulse, None],
+    '/stop' : [ValueType.Impulse, None],
+    '/stoponlost' : [ValueType.Int, None],
+    '/mtcfollow' : [ValueType.Int, None],
+    '/offset' : [ValueType.Float, None],
+    '/check' : [ValueType.Impulse, None]
+}
+
+OSC_AUDIOMIXER_CONF = {
+    '/master' : [ValueType.Float, None],
+    '/0' : [ValueType.Float, None],
+    '/1' : [ValueType.Float, None],
+    '/2' : [ValueType.Float, None],
+    '/3' : [ValueType.Float, None],
+}
+
+OSC_DMXPLAYER_CONF = { 
+    '/quit' : [ValueType.Impulse, None],
+    '/check' : [ValueType.Impulse, None],
+    '/blackout' : [ValueType.Impulse, None],  # Clear all scenes/fades, send zeros to OLA
+    '/stoponlost' : [ValueType.Bool, None],
+    '/mtcfollow' : [ValueType.Bool, None],
+    '/frame' : [ValueType.List, None],        # [universe_id, ch0, val0, ch1, val1, ...]
+    '/fade_time' : [ValueType.Float, None],   # Fade duration in seconds
+    '/mtc_time' : [ValueType.String, None],   # MTC time as string ("now", "+H:M:S", "H:M:S")
+    '/start_offset' : [ValueType.Int, None],  # Start offset in milliseconds
+}
+
+# Endpoint format: path : [ValueType, callback, default_value, repetition_filter]
+# Impulse endpoints must always use False for repetition_filter (also enforced
+# in OssiaNodes.set_parameter) — pyossia silently drops repeated Impulse sends
+# when the filter is ON.
+OSC_VIDEOPLAYER_CONF = {
+    '/videocomposer/check' : [ValueType.Impulse, None, None, False],  # no RepetitionFilter (Impulse)
+    '/videocomposer/quit' : [ValueType.Impulse, None, None, False],  # no RepetitionFilter (Impulse)
+    '/videocomposer/display/list' : [ValueType.Impulse, None, None, False],  # no RepetitionFilter (Impulse)
+    '/videocomposer/display/modes' : [ValueType.String, None],
+    '/videocomposer/display/resolution_mode' : [ValueType.String, None], # e.g. "1080p", "native", "maximum", "720p", "4k", "" empty string shows available modes
+    '/videocomposer/display/mode' : [ValueType.List, None], # [output_name, width, height, refresh_rate]
+    '/videocomposer/display/region' : [ValueType.List, None], # [output_name, x, y, width, height]
+    '/videocomposer/display/blend' : [ValueType.List, None], # [output_name, left, right, top, bottom, gamma]
+    '/videocomposer/display/warp' : [ValueType.List, None], # [output_name, mesh_path]
+    '/videocomposer/display/save' : [ValueType.String, None], # [file_path]
+    '/videocomposer/display/load' : [ValueType.String, None], # [file_path]
+    '/videocomposer/reset' : [ValueType.Impulse, None, None, False],  # Remove all layers, cancel loads, reset master — no RepetitionFilter (Impulse)
+    '/videocomposer/layer/load' : [ValueType.List, None, None, False], # [file_path, layer_id] — no RepetitionFilter (command endpoint)
+    '/videocomposer/layer/load_shared' : [ValueType.List, None, None, False], # [file_path, layer_id, driver_layer_id] — shared decoder (same cue, multiple outputs)
+    '/videocomposer/layer/unload' : [ValueType.String, None, None, False], # [layer_id] — no RepetitionFilter (command endpoint)
+    '/videocomposer/output/capture' : [ValueType.List, None], # [ status|disable|[enable width height] ]
+}
+
+OSC_VIDEOPLAYER_LAYER_CONF = {
+    '/videocomposer/layer/{}/play' : [ValueType.Impulse, None],
+    '/videocomposer/layer/{}/pause' : [ValueType.Impulse, None],
+    '/videocomposer/layer/{}/offset' : [ValueType.Int, None],
+    '/videocomposer/layer/{}/mtcfollow' : [ValueType.Int, None],  # 1 = enable, 0 = disable
+    '/videocomposer/layer/{}/visible' : [ValueType.Int, None, -1],
+    '/videocomposer/layer/{}/autounload' : [ValueType.Int, None], # 0 or 1
+    '/videocomposer/layer/{}/loop' : [ValueType.Int, None], # 1 = enable loop, 0 = disable
+    '/videocomposer/layer/{}/opacity' : [ValueType.Float, None], # opacity (0.0 to 1.0)
+    '/videocomposer/layer/{}/position' : [ValueType.List, None], # [x, y] (x and y are pixel coordinates of the screen)
+    '/videocomposer/layer/{}/scale' : [ValueType.List, None], # [x, y] (x and y are scale ratio of the layer)
+    '/videocomposer/layer/{}/rotation' : [ValueType.Float, None], # rotation in degrees
+    '/videocomposer/layer/{}/zorder' : [ValueType.Int, None], # z-order of the layer (higher numbers are in front)
+    '/videocomposer/layer/{}/corner_deform' : [ValueType.List, None], # [x0, y0, offset0, ..., x3, y3, offset3] (x and y are pixel coordinates of the corner, offset is the deformation amount)
+    '/videocomposer/layer/{}/corner_deform_enable' : [ValueType.Int, None], # Enable / Disable corner deformation [0 or 1]
+    '/videocomposer/layer/{}/corner_deform_hq' : [ValueType.Int, None], # Enable / Disable high-quality mode [0 or 1]
+}
+
+OSC_PLAYERS_DICT = {
+    'audio/cue': OSC_AUDIOPLAYER_CONF,
+    'audio/mixer': OSC_AUDIOMIXER_CONF,
+    'dmx/mixer': OSC_DMXPLAYER_CONF,
+    'video/mixer': OSC_VIDEOPLAYER_CONF
+}
+
+OSC_ENGINE_CMD_CONF = {
+    '/engine/command/load' : [ValueType.String, None],
+    '/engine/command/loadcue' : [ValueType.String, None],
+    '/engine/command/go' : [ValueType.Impulse, None],
+    '/engine/command/gocue' : [ValueType.Impulse, None],
+    '/engine/command/pause' : [ValueType.Impulse, None],
+    '/engine/command/stop' : [ValueType.Impulse, None],
+    '/engine/command/resetall' : [ValueType.String, None],
+    '/engine/command/preload' : [ValueType.String, None],
+    '/engine/command/unload' : [ValueType.String, None],
+    '/engine/command/hwdiscovery' : [ValueType.Impulse, None],
+    '/engine/command/deploy' : [ValueType.String, None],
+    '/engine/command/test' : [ValueType.String, None],
+    '/engine/command/update' : [ValueType.String, None]
+}
diff --git a/src/cuemsengine/osc/helpers.py b/src/cuemsengine/osc/helpers.py
new file mode 100644
index 0000000..89e4119
--- /dev/null
+++ b/src/cuemsengine/osc/helpers.py
@@ -0,0 +1,236 @@
+from enum import Enum
+from typing import Callable, Union
+from pyossia.ossia_python import OSCDevice, OSCQueryDevice # type: ignore[attr-defined]
+from pyossia import Node, ValueType
+from typing import Optional
+from cuemsutils.log import Logger
+from datetime import datetime
+from time import sleep
+
+# Type aliases for device setup functions
+ServerSetupFunction = Callable[..., bool]
+ClientSetupFunction = Callable[..., Union[OSCDevice, OSCQueryDevice]]
+
+def new_osc_device(cls) -> OSCDevice:
+    """An OSC device is required to deal with a remote application using OSC protocol
+
+    Args:
+        name (str): name of the device
+        host (str): host ip address
+        remote_port (int): port where osc messages have to be sent to be catch by a remote client to listen to the local device
+        local_port (int): port where OSC requests have to be sent by any remote client to deal with the local device
+
+    Returns:
+        OSCDevice: an OSC device
+    """
+    x = OSCDevice(
+        cls.name,
+        cls.host,
+        cls.remote_port,
+        cls.local_port
+    )
+    Logger.debug(f"OSCDevice created: {x}, remote_port: {cls.remote_port}, local_port: {cls.local_port}")
+    return x
+
+def new_oscquery_device(cls) -> OSCQueryDevice:
+    try:
+        x = OSCQueryDevice(
+            cls.name,
+            f"ws://{cls.host}:{cls.remote_port}",
+            cls.local_port
+        )
+    except Exception as e:
+        Logger.exception(f'Failed to create OSCQueryDevice: {e}, type: {type(e)}')
+        return
+    Logger.info(f'Added OSCQueryDevice: {cls.name}')
+    try:
+        result = False
+        while not result:
+            result = x.update()
+            sleep(0.5)
+            Logger.debug(f'Waiting for remote device ws://{cls.host}:{cls.remote_port} to be ready...')
+    except Exception as e:
+        Logger.exception(f'Failed to update OSCQueryDevice: {e}, type: {type(e)}')
+        return
+    Logger.debug(f"OSCQueryDevice created: {x}, remote_port: {cls.remote_port}, local_port: {cls.local_port} {datetime.now()}")
+    return x
+
+class ClientDevices(Enum):
+    OSC = new_osc_device
+    OSCQUERY = new_oscquery_device
+    PYOSC = None
+
+def set_osc_server(cls) -> bool:
+    """LocalDevice.create_osc_server
+
+    Make the local device able to handle osc request and emit osc message
+    
+    Args:
+        host (str): host ip address
+        remote_port (int): port where osc messages have to be sent to be catch by a remote client to listen to the local device
+        local_port (int): port where OSC requests have to be sent by any remote client to deal with the local device
+        log (bool): enable protocol logging
+
+    Returns:
+        bool: True if the server has been created successfully
+    """
+    Logger.debug(f'creating osc server for {cls.name} on {cls.host}:{cls.local_port} -> {cls.remote_port}')
+    return cls.device.create_osc_server(
+        cls.host,
+        cls.remote_port,
+        cls.local_port,
+        cls.logging
+    )
+
+def set_oscquery_server(cls) -> bool:
+    """LocalDevice.create_oscquery_server
+
+    Make the local device able to handle oscquery request
+
+    Args:
+        osc_port (int): port where OSC requests have to be sent by any remote client to deal with the local device
+        ws_port (int) port where WebSocket requests have to be sent by any remote client to deal with the local device
+        log (bool): enable protocol logging
+
+    Returns:
+        bool: True if the server has been created successfully
+    """
+    Logger.debug(f'creating oscquery server on {cls.host}:{cls.remote_port} -> {cls.local_port}')
+    
+    try:
+        return cls.device.create_oscquery_server(
+            cls.local_port,
+            cls.remote_port,
+            cls.logging
+        )
+    except Exception as e:
+        Logger.error(f"{type(e).__name__} creating oscquery server: {e}")
+        raise e
+
+class ServerDevices(Enum):
+    OSC = set_osc_server
+    OSCQUERY = set_oscquery_server
+    PYOSC = None
+
+
+## --------- HELPERS --------- ##
+
+def add_callbacks_from_dict(endpoints: dict, cmd_dict: dict[str, Callable]) -> dict:
+    """Include the function endpoints in the endpoints dictionary
+
+    Args:
+        endpoints (dict): the endpoints dictionary
+        cmd_dict (dict): the command dictionary
+
+    Returns:
+        dict: the endpoints dictionary with the function endpoints included
+    """
+    for key, value in endpoints.items():
+        func = cmd_dict.get(key.split('/')[-1])
+        if func:
+            endpoints[key] = [value[0], func]
+    return endpoints
+
+def add_callback_to_all(endpoints: dict, func: Callable) -> dict:
+    """Include the function to the endpoints dictionary
+
+    Args:
+        endpoints (dict): the endpoints dictionary
+        func (Callable): the function to include
+    """
+    return {key: [value[0], func] for key, value in endpoints.items()}
+
+def add_prefix_to_all(endpoints: dict, prefix: str) -> dict:
+    """Add a prefix to the endpoints dictionary
+
+    Args:
+        endpoints (dict): the endpoints dictionary
+        prefix (str): the prefix to add
+    """
+    return {prefix + key: value for key, value in endpoints.items()}
+
+def deserialize_node(node_data: dict, parent_node: Optional[Node] = None) -> Node:
+        """
+        Deserialize a dictionary structure into pyossia nodes.
+        
+        Parameters:
+        - node_data: The serialized node structure
+        - parent_node: Optional parent node to attach to
+        
+        Returns:
+        - pyossia.ossia.Node: The reconstructed node
+        """
+        if parent_node is None:
+            raise ValueError("Parent node required for deserialization")
+        
+        # Create the node
+        node = parent_node.add_node(node_data["name"])
+        
+        # Recreate parameter if it existed
+        if node_data.get("parameter"):
+            param_dict = node_data["parameter"]
+            param = node.create_parameter(ValueType.String)  # Default type
+            
+            # Set parameter properties
+            if param_dict.get("value") is not None:
+                try:
+                    param.value = param_dict["value"]
+                except:
+                    Logger.warning(f"Could not set value for parameter at {node.name}")
+        
+        # Recursively create children
+        for child_data in node_data.get("children", []):
+            deserialize_node(child_data, node)
+        
+        return node
+
+def serialize_node(node: Node) -> dict:
+        """
+        Serialize a pyossia node and its children to a dictionary structure.
+        
+        Parameters:
+        - node: The pyossia node to serialize
+        
+        Returns:
+        - dict: Serialized node structure
+        """
+        node_dict = {
+            "name": node.name,
+            "children": [],
+            "parameter": None
+        }
+        
+        # Serialize parameter if exists
+        param = node.parameter
+        if param:
+            param_dict = {
+                "access": str(param.access_mode),
+                "bounding": str(param.bounding_mode),
+                "type": str(param.value_type) if hasattr(param, 'value_type') else None,
+            }
+            
+            # Try to get current value
+            try:
+                value = param.value
+                # Convert value to JSON-serializable format
+                if hasattr(value, '__iter__') and not isinstance(value, str):
+                    param_dict["value"] = list(value)
+                else:
+                    param_dict["value"] = value
+            except:
+                param_dict["value"] = None
+            
+            # Get other parameter properties
+            try:
+                param_dict["domain"] = str(param.domain) if hasattr(param, 'domain') else None
+                param_dict["unit"] = str(param.unit) if hasattr(param, 'unit') else None
+            except:
+                pass
+                
+            node_dict["parameter"] = param_dict
+        
+        # Recursively serialize children
+        for child in node.children():
+            node_dict["children"].append(serialize_node(child))
+        
+        return node_dict
diff --git a/src/cuemsengine/players/AudioMixer.py b/src/cuemsengine/players/AudioMixer.py
new file mode 100644
index 0000000..3fd1a21
--- /dev/null
+++ b/src/cuemsengine/players/AudioMixer.py
@@ -0,0 +1,588 @@
+from .JackConnectionManager import JackConnectionManager
+from .Player import Player
+from ..osc.OssiaClient import PlayerClient
+from ..osc.helpers import add_callback_to_all
+from ..tools.PortHandler import PORT_HANDLER
+from pyossia import ValueType
+from cuemsutils.log import logged, Logger
+from functools import partial
+from time import sleep
+
+JACK_VOLUME_PATH = '/usr/local/bin/jack-volume'
+# usage: jack-volume [-c <jack_client_name>] [-s <jack_server_name>] [-p <osc_port>] [-n <number_of_channels>]
+
+class AudioMixer(Player):
+    """JACK audio mixer using jack-volume controlled via OSC.
+    
+    This class manages a jack-volume process which provides volume control
+    for multiple audio channels. It connects to JACK and exposes OSC control.
+    
+    OSC address format: /audiomixer/<instance>/<channel>
+    where channel can be 'master' or '0', '1', '2', etc.
+    """
+
+    def __init__(self, audio_outputs, port, mixer_id: str, path=None, args: str | None = None):
+        """Initialize the AudioMixer.
+        
+        Args:
+            audio_outputs: List of audio output configurations
+            port: OSC port for jack-volume communication
+            mixer_id: Unique identifier for this mixer
+            path: Optional path to jack-volume binary (defaults to JACK_VOLUME_PATH)
+        """
+        super().__init__()
+        self.conn_man = JackConnectionManager()
+        self.port = port
+        self.ports = self.conn_man.get_ports()
+        self.path = path if path else JACK_VOLUME_PATH
+        self.channel_number = len(audio_outputs)
+        self.audio_outputs = audio_outputs
+        self.client_name = get_mixer_client_name(mixer_id)
+        self.extra_args = args
+        
+        # Build command line arguments for jack-volume
+        self.args = [
+            '-c', self.client_name,
+            '-p', str(port),
+            '-n', str(self.channel_number)
+        ]
+        
+        # Note: start() will be called by start_audio_mixer() with timeout
+        # self.connect_to_jack() will be called after start() in start_audio_mixer()
+
+    @logged
+    def run(self):
+        """Start the jack-volume subprocess."""
+        process_call_list = [self.path] + self.args
+        if self.extra_args:
+            for arg in self.extra_args.split():
+                process_call_list.append(arg)
+        Logger.info(f"Starting jack-volume with: {process_call_list}")
+        self.call_subprocess(process_call_list)
+
+    @logged
+    def connect_to_jack(self, max_retries: int = 10, retry_delay: float = 0.5):
+        """Connect mixer outputs to the configured playback ports.
+
+        Retries if ports are not yet registered (race with jack-volume startup).
+        """
+        for i, playback_port in enumerate(self.audio_outputs):
+            output_port = f"{self.client_name}:output_{i+1}"
+            # Wait for both ports to be available
+            for attempt in range(max_retries):
+                if self.conn_man.port_exists(output_port) and self.conn_man.port_exists(playback_port):
+                    break
+                if attempt < max_retries - 1:
+                    Logger.debug(f"Waiting for JACK ports {output_port} / {playback_port} (attempt {attempt + 1}/{max_retries})")
+                    sleep(retry_delay)
+            else:
+                Logger.warning(f"JACK ports not available after {max_retries} attempts: {output_port} -> {playback_port}")
+                continue
+            Logger.debug(f"Connecting {output_port} to {playback_port}")
+            self.conn_man.connect_by_name(output_port, playback_port)
+
+    @logged
+    def connect_player_to_mixer(self, player_name: str, player_output_prefix: str = 'output', mixer_channel: int = 0, max_retries: int = 30, retry_delay: float = 0.5):
+        """Connect a player's output to a specific mixer input channel.
+        
+        First disconnects any existing connections from the player's outputs,
+        then connects them to the mixer inputs. Will retry if ports are not
+        immediately available (race condition with player startup).
+        
+        Handles both mono and stereo players:
+        - Mono: output_0 → input_1 (single channel)
+        - Stereo: output_0 → input_1, output_1 → input_2
+        
+        Args:
+            player_name: Name of the player JACK client to connect
+            player_output_prefix: Prefix for player's output ports (e.g., 'output')
+            mixer_channel: Mixer input channel number (0-indexed)
+            max_retries: Maximum number of connection attempts (default 10)
+            retry_delay: Delay between retries in seconds (default 0.2)
+        """
+        from time import sleep
+        
+        if mixer_channel >= self.channel_number:
+            Logger.error(f"Invalid mixer channel: {mixer_channel}. Max: {self.channel_number - 1}")
+            return
+            
+        # Define player output ports
+        # cuems-audioplayer uses space format: "outport 0", "outport 1"
+        channel_0_output = f"{player_name}:{player_output_prefix} 0"
+        channel_1_output = f"{player_name}:{player_output_prefix} 1"
+        mixer_input_1 = f"{self.client_name}:input_{mixer_channel * 2 + 1}"
+        mixer_input_2 = f"{self.client_name}:input_{mixer_channel * 2 + 2}"
+        
+        # Wait for player JACK ports to be available (retry mechanism)
+        for attempt in range(max_retries):
+            # Check if ports exist by trying to get connections
+            connections = self.conn_man.get_connections(channel_0_output)
+            if connections is not None or self.conn_man.port_exists(channel_0_output):
+                break
+            if attempt < max_retries - 1:
+                Logger.debug(f"Waiting for JACK port {channel_0_output} (attempt {attempt + 1}/{max_retries})")
+                sleep(retry_delay)
+        else:
+            Logger.warning(f"JACK port {channel_0_output} not available after {max_retries} attempts")
+        
+        # Check if player is stereo (has output_1) or mono (only output_0)
+        is_stereo = self.conn_man.port_exists(channel_1_output)
+        Logger.debug(f"Player {player_name} is {'stereo' if is_stereo else 'mono'}")
+        
+        # First, disconnect any existing connections from player outputs
+        # Guard with port_exists to avoid sending disconnect requests for
+        # ports that were destroyed by a concurrent /quit.
+        if self.conn_man.port_exists(channel_0_output):
+            Logger.debug(f"Disconnecting existing connections from {channel_0_output}")
+            channel_0_connections = self.conn_man.get_connections(channel_0_output)
+            for connection in channel_0_connections:
+                Logger.debug(f"Disconnecting {channel_0_output} from {connection}")
+                self.conn_man.disconnect_by_name(channel_0_output, connection)
+
+        if is_stereo and self.conn_man.port_exists(channel_1_output):
+            Logger.debug(f"Disconnecting existing connections from {channel_1_output}")
+            channel_1_connections = self.conn_man.get_connections(channel_1_output)
+            for connection in channel_1_connections:
+                Logger.debug(f"Disconnecting {channel_1_output} from {connection}")
+                self.conn_man.disconnect_by_name(channel_1_output, connection)
+
+        # Connect to mixer inputs
+        # For mono: connect output_0 to both input_1 and input_2 (if available)
+        # For stereo: connect output_0 → input_1, output_1 → input_2
+        
+        # Connect first channel
+        if self.conn_man.port_exists(mixer_input_1):
+            Logger.debug(f"Connecting {channel_0_output} to {mixer_input_1}")
+            self.conn_man.connect_by_name(channel_0_output, mixer_input_1)
+        else:
+            Logger.warning(f"Mixer input port {mixer_input_1} does not exist")
+        
+        # Connect second channel (if mixer has it)
+        if self.conn_man.port_exists(mixer_input_2):
+            if is_stereo:
+                Logger.debug(f"Connecting {channel_1_output} to {mixer_input_2}")
+                self.conn_man.connect_by_name(channel_1_output, mixer_input_2)
+            else:
+                # Mono player: connect output_0 to both mixer inputs for centered sound
+                Logger.debug(f"Mono player: Connecting {channel_0_output} to {mixer_input_2}")
+                self.conn_man.connect_by_name(channel_0_output, mixer_input_2)
+        else:
+            Logger.debug(f"Mixer input port {mixer_input_2} does not exist (mono mixer)")
+
+    @logged
+    def connect_player_to_outputs(self, player_name: str, player_output_prefix: str = 'outport', 
+                                   selected_outputs: list = None, max_retries: int = 30, retry_delay: float = 0.5):
+        """Connect a player to specific system outputs based on cue configuration.
+        
+        Maps selected output port names to mixer inputs:
+        - system:playback_1 → mixer input_1
+        - system:playback_2 → mixer input_2
+        
+        For stereo audio with a single output selected, both player channels
+        are summed to that output. For both outputs, normal stereo routing.
+        
+        Args:
+            player_name: Name of the player JACK client to connect
+            player_output_prefix: Prefix for player's output ports (e.g., 'outport')
+            selected_outputs: List of output port names (e.g., ['system:playback_1'])
+            max_retries: Maximum number of connection attempts
+            retry_delay: Delay between retries in seconds
+        """
+        from time import sleep
+        
+        # Default to stereo (both outputs) if none specified
+        if not selected_outputs:
+            selected_outputs = ['system:playback_1', 'system:playback_2']
+            Logger.debug(f"No outputs specified, defaulting to stereo: {selected_outputs}")
+        
+        # Define player output ports - cuems-audioplayer uses "outport 0", "outport 1"
+        channel_0_output = f"{player_name}:{player_output_prefix} 0"
+        channel_1_output = f"{player_name}:{player_output_prefix} 1"
+        
+        # Build output→input mapping from the configured audio_outputs list
+        output_to_input = {
+            name: f"{self.client_name}:input_{i+1}"
+            for i, name in enumerate(self.audio_outputs)
+        }
+        
+        # Wait for player JACK ports to be available
+        for attempt in range(max_retries):
+            connections = self.conn_man.get_connections(channel_0_output)
+            if connections is not None or self.conn_man.port_exists(channel_0_output):
+                break
+            if attempt < max_retries - 1:
+                Logger.debug(f"Waiting for JACK port {channel_0_output} (attempt {attempt + 1}/{max_retries})")
+                sleep(retry_delay)
+        else:
+            Logger.warning(f"JACK port {channel_0_output} not available after {max_retries} attempts")
+            return
+        
+        # Check if player is stereo
+        is_stereo = self.conn_man.port_exists(channel_1_output)
+        Logger.debug(f"Player {player_name} is {'stereo' if is_stereo else 'mono'}")
+        
+        # First, disconnect any existing connections from player outputs
+        # Guard with port_exists to avoid operating on destroyed ports.
+        if self.conn_man.port_exists(channel_0_output):
+            Logger.debug(f"Disconnecting existing connections from {channel_0_output}")
+            channel_0_connections = self.conn_man.get_connections(channel_0_output)
+            for connection in channel_0_connections:
+                self.conn_man.disconnect_by_name(channel_0_output, connection)
+
+        if is_stereo and self.conn_man.port_exists(channel_1_output):
+            channel_1_connections = self.conn_man.get_connections(channel_1_output)
+            for connection in channel_1_connections:
+                self.conn_man.disconnect_by_name(channel_1_output, connection)
+        
+        # Determine which mixer inputs to connect to
+        target_inputs = []
+        for output in selected_outputs:
+            if output in output_to_input:
+                mixer_input = output_to_input[output]
+                if self.conn_man.port_exists(mixer_input):
+                    target_inputs.append(mixer_input)
+                else:
+                    Logger.warning(f"Mixer input {mixer_input} does not exist")
+        
+        if not target_inputs:
+            Logger.error(f"No valid mixer inputs found for outputs: {selected_outputs}")
+            return
+        
+        Logger.info(f"Connecting {player_name} to outputs: {selected_outputs} -> {target_inputs}")
+
+        # Fan-out routing: treat target_inputs as alternating L/R pairs.
+        # Even-indexed targets (0, 2, 4 …) receive outport 0 (L channel).
+        # Odd-indexed targets  (1, 3, 5 …) receive outport 1 (R channel)
+        #   or outport 0 again when the player is mono.
+        # This covers 1, 2 or any number of outputs uniformly.
+        for i, mixer_input in enumerate(target_inputs):
+            if i % 2 == 0:
+                Logger.debug(f"L → {mixer_input}")
+                self.conn_man.connect_by_name(channel_0_output, mixer_input)
+            else:
+                if is_stereo:
+                    Logger.debug(f"R → {mixer_input}")
+                    self.conn_man.connect_by_name(channel_1_output, mixer_input)
+                else:
+                    Logger.debug(f"Mono → {mixer_input}")
+                    self.conn_man.connect_by_name(channel_0_output, mixer_input)
+
+
+    def player_connections_correct(self, player_name: str,
+                                   player_output_prefix: str = 'outport',
+                                   selected_outputs: list = None) -> bool:
+        """Verify the player's outputs are wired exactly as connect_player_to_outputs would wire them.
+
+        Mirrors the routing in connect_player_to_outputs: same output_to_input
+        mapping (built from audio_outputs), same alternating L/R fan-out walk,
+        same mono branch (outport 0 → both pair members when channel_1 absent).
+
+        Returns False if any expected edge is missing, points elsewhere, or if
+        outport 0 itself does not exist (subprocess gone). Caller decides
+        whether to repair via connect_player_to_outputs or abort the cue.
+        """
+        if not selected_outputs:
+            selected_outputs = ['system:playback_1', 'system:playback_2']
+
+        channel_0_output = f"{player_name}:{player_output_prefix} 0"
+        channel_1_output = f"{player_name}:{player_output_prefix} 1"
+
+        if not self.conn_man.port_exists(channel_0_output):
+            return False
+
+        is_stereo = self.conn_man.port_exists(channel_1_output)
+
+        output_to_input = {
+            name: f"{self.client_name}:input_{i+1}"
+            for i, name in enumerate(self.audio_outputs)
+        }
+
+        target_inputs = []
+        for output in selected_outputs:
+            if output in output_to_input:
+                mixer_input = output_to_input[output]
+                if self.conn_man.port_exists(mixer_input):
+                    target_inputs.append(mixer_input)
+
+        if not target_inputs:
+            return False
+
+        for i, mixer_input in enumerate(target_inputs):
+            if i % 2 == 0 or not is_stereo:
+                expected_src = channel_0_output
+            else:
+                expected_src = channel_1_output
+            if not self.conn_man.is_connected(expected_src, mixer_input):
+                return False
+
+        return True
+
+    @logged
+    def disconnect_player(self, player_name: str, player_output_prefix: str = 'outport'):
+        """Disconnect a player's outputs from the mixer.
+
+        Must be called BEFORE the player's JACK client is destroyed (i.e. before
+        sending /quit), otherwise JACK receives disconnect requests for ports
+        that no longer exist, which can corrupt its shared memory registry.
+
+        Args:
+            player_name: Name of the player JACK client
+            player_output_prefix: Prefix for player's output ports
+        """
+        channel_0_output = f"{player_name}:{player_output_prefix} 0"
+        channel_1_output = f"{player_name}:{player_output_prefix} 1"
+
+        for port_name in (channel_0_output, channel_1_output):
+            if not self.conn_man.port_exists(port_name):
+                continue
+            connections = self.conn_man.get_connections(port_name)
+            for connection in connections:
+                Logger.debug(f"Disconnecting {port_name} from {connection}")
+                self.conn_man.disconnect_by_name(port_name, connection)
+
+
+def build_mixer_osc_endpoints(client_name: str, channel_number: int) -> dict:
+    """Build OSC endpoint configuration for audio mixer.
+    
+    Creates OSC addresses in the format expected by jack-volume (audiomixer_routes branch):
+    /audiomixer/{client_name}/master
+    /audiomixer/{client_name}/0
+    /audiomixer/{client_name}/1
+    etc.
+    
+    Args:
+        client_name: Name of the mixer client instance (JACK client name)
+        channel_number: Number of audio channels in the mixer
+    
+    Returns:
+        Dictionary of OSC endpoints with their configuration
+    """
+    endpoints = {}
+    base_path = f'/audiomixer/{client_name}'
+    
+    # Master volume control
+    endpoints[f'{base_path}/master'] = [ValueType.Float, None, 1.0]
+    
+    # Individual channel volume controls
+    for i in range(channel_number):
+        endpoints[f'{base_path}/{i}'] = [ValueType.Float, None, 1.0]
+    
+    return endpoints
+
+
+class MixerClient(PlayerClient):
+    """OSC Client for controlling the AudioMixer via jack-volume.
+    
+    Provides methods to control volume for individual channels and master volume.
+    Uses OSC addresses: /audiomixer/<instance>/<channel>
+    where channel can be 'master' or '0', '1', '2', etc.
+    """
+
+    def __init__(self, player_port: int, channel_number: int, mixer_id: str):
+        """Initialize the MixerClient.
+        
+        Args:
+            player_port: OSC port where jack-volume is listening
+            channel_number: Number of audio channels in the mixer
+            mixer_id: Unique identifier for this mixer
+        """
+        self.client_name = get_mixer_client_name(mixer_id)
+        self.channel_number = channel_number
+        
+        # Build OSC endpoint configuration for jack-volume
+        endpoints = build_mixer_osc_endpoints(self.client_name, channel_number)
+        
+        super().__init__(
+            player_port=player_port,
+            endpoints=endpoints,
+            name=f'mixer-{mixer_id}'
+        )
+
+    @logged
+    def set_master_volume(self, gain: float):
+        """Set the master volume gain.
+        
+        Args:
+            gain: Volume gain (0.0 to 1.0)
+        """
+        if not 0.0 <= gain <= 1.0:
+            Logger.error(f"Invalid gain value: {gain}. Must be between 0.0 and 1.0")
+            return
+            
+        path = f'/audiomixer/{self.client_name}/master'
+        Logger.debug(f"Setting master volume to {gain}")
+        self.set_value(path, gain)
+
+    @logged
+    def set_channel_volume(self, channel: int, gain: float):
+        """Set volume for a specific channel.
+        
+        Args:
+            channel: Channel number (0-indexed)
+            gain: Volume gain (0.0 to 1.0)
+        """
+        if not 0.0 <= gain <= 1.0:
+            Logger.error(f"Invalid gain value: {gain}. Must be between 0.0 and 1.0")
+            return
+            
+        if channel >= self.channel_number:
+            Logger.error(f"Invalid channel: {channel}. Max: {self.channel_number - 1}")
+            return
+            
+        path = f'/audiomixer/{self.client_name}/{channel}'
+        Logger.debug(f"Setting channel {channel} volume to {gain}")
+        self.set_value(path, gain)
+
+    @logged
+    def set_all_channels_volume(self, gain: float):
+        """Set volume for all channels (excluding master).
+        
+        Args:
+            gain: Volume gain (0.0 to 1.0)
+        """
+        for i in range(self.channel_number):
+            self.set_channel_volume(i, gain)
+
+    @logged
+    def reset_volumes(self):
+        """Reset all volumes to maximum (1.0).
+        
+        Call this when loading a project or starting playback to ensure
+        consistent volume levels.
+        """
+        Logger.info("Resetting mixer volumes to default (1.0)")
+        self.set_master_volume(1.0)
+        self.set_all_channels_volume(1.0)
+
+    @logged
+    def mute_channel(self, channel: int):
+        """Mute a specific channel by setting its volume to 0.0.
+        
+        Args:
+            channel: Channel number (0-indexed)
+        """
+        self.set_channel_volume(channel, 0.0)
+
+    @logged
+    def unmute_channel(self, channel: int, gain: float = 1.0):
+        """Unmute a specific channel by setting its volume.
+        
+        Args:
+            channel: Channel number (0-indexed)
+            gain: Volume gain to restore (0.0 to 1.0), defaults to 1.0
+        """
+        self.set_channel_volume(channel, gain)
+
+    @logged
+    def mute_master(self):
+        """Mute master volume."""
+        self.set_master_volume(0.0)
+
+    @logged
+    def unmute_master(self, gain: float = 1.0):
+        """Unmute master volume.
+        
+        Args:
+            gain: Volume gain to restore (0.0 to 1.0), defaults to 1.0
+        """
+        self.set_master_volume(gain)
+
+    @logged
+    def add_to_oscquery_server(self, oscquery_server):
+        """Add this mixer's OSC routes to a local OSCQuery server.
+        
+        This allows the mixer controls to be visible and controllable
+        through the OSCQuery server interface.
+        
+        Args:
+            oscquery_server: OssiaServer instance to add endpoints to
+        """
+        Logger.info(f"Adding mixer {self.client_name} to OSCQuery server")
+        
+        # Get endpoints from this client
+        endpoints = self.get_endpoints()
+        Logger.debug(f"Mixer endpoints: {list(endpoints.keys())}")
+        
+        # Create callback that forwards values from server to this client
+        def server_to_client_callback(value):
+            """Forward OSC values from server to mixer client."""
+            Logger.debug(f"Forwarding value to mixer: {value}")
+            # The value will be automatically sent to jack-volume via the OSC client
+        
+        # Add callback to all endpoints
+        endpoints_with_callbacks = add_callback_to_all(endpoints, server_to_client_callback)
+        
+        # Add endpoints to the OSCQuery server
+        oscquery_server.add_endpoints(endpoints_with_callbacks)
+        
+        Logger.info(f"Mixer {self.client_name} added to OSCQuery server with {len(endpoints)} endpoints")
+
+
+@logged
+def start_audio_mixer(
+    audio_outputs: list,
+    port: int,
+    mixer_id: str,
+    path: str = None,
+    args: str | None = None,
+    timeout: float = 5.0
+) -> tuple[AudioMixer, MixerClient]:
+    """Start an audio mixer and its OSC client.
+    
+    This function creates and starts a jack-volume mixer process and
+    sets up an OSC client to control it.
+    
+    Args:
+        audio_outputs: List of audio output configurations
+        port: OSC port for jack-volume communication
+        mixer_id: Unique identifier for this mixer
+        path: Optional path to jack-volume binary
+        args: Additional arguments for jack-volume
+        timeout: Maximum time to wait for mixer to start (seconds)
+    
+    Returns:
+        Tuple containing the AudioMixer and MixerClient instances
+        
+    Raises:
+        RuntimeError: If mixer fails to start within timeout or thread dies
+    """
+    # Create the mixer
+    mixer = AudioMixer(
+        audio_outputs=audio_outputs,
+        port=port,
+        mixer_id=mixer_id,
+        path=path,
+        args=args
+    )
+    
+    # Start with timeout handling
+    mixer.start(timeout=timeout)
+    
+    # Wait for jack-volume to fully initialize before connecting
+    sleep(2)
+    
+    # Connect JACK ports
+    mixer.connect_to_jack()
+    
+    # Create OSC client for controlling the mixer
+    client = MixerClient(
+        player_port=port,
+        channel_number=len(audio_outputs),
+        mixer_id=mixer_id
+    )
+    
+    Logger.info(f"Audio mixer {mixer_id} started on port {port}")
+    return mixer, client
+
+
+### Helper functions ###
+def get_mixer_client_name(mixer_id: str) -> str:
+    """Get the client name for the mixer.
+    
+    Args:
+        mixer_id: Unique identifier for this mixer
+        
+    Returns:
+        Client name for the mixer
+    """
+    return f'{mixer_id}_mixer'
diff --git a/src/cuemsengine/players/AudioPlayer.py b/src/cuemsengine/players/AudioPlayer.py
new file mode 100644
index 0000000..0058e2c
--- /dev/null
+++ b/src/cuemsengine/players/AudioPlayer.py
@@ -0,0 +1,87 @@
+from cuemsutils.log import logged, Logger
+from time import sleep
+
+from .Player import Player
+from ..osc.OssiaClient import PlayerClient
+from ..osc.endpoints import OSC_AUDIOPLAYER_CONF
+
+class AudioPlayer(Player):
+    def __init__(self, port, path, args, media, uuid=None):
+        super().__init__()
+        self.port = port
+        self.path = path
+        self.args = args
+        self.media = media
+        self.uuid = uuid
+
+    @logged
+    def run(self):
+        # Calling cuems-audioplayer in a subprocess
+        process_call_list = [self.path]
+        if self.args:
+            Logger.debug(f"Running audio player with args: {self.args}")
+            for arg in self.args.split():
+                process_call_list.append(arg)
+        process_call_list.extend(['--port', str(self.port)])
+        if self.uuid != None:
+            uuid_slug = ''.join(self.uuid.split('-'))
+            process_call_list.extend(['--uuid', uuid_slug])
+        process_call_list.append(self.media)
+        
+        self.call_subprocess(process_call_list)
+
+class AudioClient(PlayerClient):
+    def __init__(self, player_port: int, name: str = "audioplayer"):
+        super().__init__(
+            player_port = player_port,
+            endpoints = OSC_AUDIOPLAYER_CONF,
+            name = name
+        )
+
+def start_audio_output(
+    port: int,
+    path: str,
+    args: list[str],
+    media: str,
+    uuid: str,
+    timeout: float = 5.0
+) -> tuple[AudioPlayer, AudioClient]:
+    """Starts an audio output
+    
+    Args:
+        port: The port to use for the audio output
+        path: The path to the audio player executable
+        args: The arguments to pass to the audio player
+        media: The media to play
+        uuid: The uuid of the audio output
+        timeout: Maximum time to wait for player to start (seconds)
+
+    Returns:
+        A tuple containing the audio player and client
+        
+    Raises:
+        RuntimeError: If player fails to start within timeout or thread dies
+    """
+    player = AudioPlayer(
+        port = port,
+        path = path,
+        args = args,
+        media = media,
+        uuid = uuid
+    )
+    player.start(timeout=timeout)
+
+    try:
+        client = AudioClient(
+            player_port = port,
+            name = f'audioplayer-{uuid}'
+        )
+    except Exception:
+        # OSC client creation failed (e.g. port conflict); kill the subprocess so it doesn't linger
+        try:
+            player.kill()
+        except Exception:
+            pass
+        raise
+
+    return player, client
diff --git a/src/cuemsengine/players/DmxPlayer.py b/src/cuemsengine/players/DmxPlayer.py
new file mode 100644
index 0000000..a74a83e
--- /dev/null
+++ b/src/cuemsengine/players/DmxPlayer.py
@@ -0,0 +1,210 @@
+from cuemsutils.log import Logger, logged
+from pyossia import ossia
+
+from .Player import Player
+from ..osc.OssiaClient import PlayerClient
+from ..osc.endpoints import OSC_DMXPLAYER_CONF
+
+class DmxPlayer(Player):
+    """DMX player process wrapper.
+    
+    Manages a single cuems-dmxplayer process per node and exposes OSC control.
+    """
+
+    def __init__(self, port, node_uuid, path=None, args: str | None = None):
+        """Initialize the DmxPlayer.
+        
+        Args:
+            port: OSC port for dmxplayer communication
+            node_uuid: Unique identifier for this player node
+            path: Path to cuems-dmxplayer binary
+        """
+        super().__init__()
+        self.node_uuid = node_uuid
+        self.port = port
+        self.path = path
+        self.client_name = f'{self.node_uuid}_dmxplayer'
+        self.args = args
+        self.stdout = None
+        self.stderr = None
+
+    @logged
+    def run(self):
+        """Call cuems-dmxplayer in a subprocess"""
+        process_call_list = [self.path]
+        if self.args:
+            for arg in self.args.split():
+                process_call_list.append(arg)
+        process_call_list.extend(['--port', str(self.port)])
+        process_call_list.extend(['--uuid', str(self.node_uuid)])
+        Logger.info(f"Starting dmxplayer with: {process_call_list}")
+        self.call_subprocess(process_call_list)
+
+class DmxClient(PlayerClient):
+    def __init__(self, player_port: int, client_name: str, host: str = "127.0.0.1"):
+        """Initialize the DMX client.
+        
+        Args:
+            player_port: OSC port for communication
+            client_name: Name for this client instance
+            host: Host IP address of the dmxplayer
+        """
+        super().__init__(
+            player_port = player_port,
+            endpoints = OSC_DMXPLAYER_CONF,
+            name = client_name
+        )
+        self.host = host
+        self.player_port = player_port
+
+        # Bundle parameters for building OSC bundles (pyossia now sends proper #bundle wire format)
+        self._create_bundle_parameters()
+        Logger.debug(f"DMX bundle parameters created for {self.name}")
+
+    def _create_bundle_parameters(self) -> None:
+        """Create parameters on the OSC device for bundle construction."""
+        root = self.device.root_node
+        self._frame_param = root.add_node("/frame").create_parameter(ossia.ValueType.List)
+        self._mtc_time_param = root.add_node("/mtc_time").create_parameter(ossia.ValueType.String)
+        self._start_offset_param = root.add_node("/start_offset").create_parameter(ossia.ValueType.Int)
+        self._fade_time_param = root.add_node("/fade_time").create_parameter(ossia.ValueType.Float)
+        self._mtcfollow_param = root.add_node("/mtcfollow").create_parameter(ossia.ValueType.Int)
+
+    def enable_mtcfollow(self) -> None:
+        """Enable MTC following so the dmxplayer tracks timecode."""
+        self._mtcfollow_param.push_value(1)
+        Logger.debug("DMX mtcfollow enabled")
+
+    def disable_mtcfollow(self) -> None:
+        """Disable MTC following so the dmxplayer stops advancing its playhead."""
+        self._mtcfollow_param.push_value(0)
+        Logger.debug("DMX mtcfollow disabled")
+
+    @logged
+    def send_dmx_scene(
+        self,
+        universe_frames: dict[int, dict[int, int]],
+        mtc_time: str | int,
+        fade_time: float = 0.0
+    ) -> None:
+        """Send a complete DMX scene as an OSC bundle via pyossia.
+        
+        Constructs an OSC bundle containing:
+        - /frame messages: universe_id followed by channel/value pairs
+        - /mtc_time or /start_offset: timing information
+        - /fade_time: fade duration
+        """
+        try:
+            bundle = ossia.Bundle()
+
+            for universe_id, channels in universe_frames.items():
+                if channels:
+                    frame_data = [int(universe_id)]
+                    for channel, value in sorted(channels.items()):
+                        frame_data.append(int(channel))
+                        frame_data.append(int(value))
+                    bundle.append(self._frame_param, frame_data)
+                    Logger.debug(f"Added frame for universe {universe_id} with {len(channels)} channels")
+
+            if isinstance(mtc_time, int):
+                bundle.append(self._start_offset_param, int(mtc_time))
+                Logger.debug(f"Added start_offset: {mtc_time}ms")
+            else:
+                bundle.append(self._mtc_time_param, str(mtc_time))
+                Logger.debug(f"Added mtc_time: {mtc_time}")
+
+            bundle.append(self._fade_time_param, float(fade_time))
+            Logger.debug(f"Added fade_time: {fade_time}s")
+
+            self.device.push_bundle(bundle)
+
+            Logger.info(
+                f"Sent DMX scene bundle: {len(universe_frames)} universe(s), "
+                f"mtc={mtc_time}, fade={fade_time}s"
+            )
+
+        except Exception as e:
+            Logger.error(f"Error sending DMX scene bundle: {e}")
+            Logger.exception(e)
+            raise
+
+    @logged
+    def send_blackout(self, universe_ids: int | tuple[int, ...] = (0, 1)) -> None:
+        """Send blackout: clear dmxplayer fades + direct OLA backup.
+
+        Sends /blackout to the dmxplayer which clears all queued scenes,
+        active fades, and writes zeros to OLA. The direct ola_set_dmx
+        backup covers the case where the dmxplayer hasn't processed
+        the command yet.
+
+        Args:
+            universe_ids: DMX universe(s) to black out.
+        """
+        import subprocess
+
+        if isinstance(universe_ids, int):
+            universe_ids = (universe_ids,)
+
+        # Tell the dmxplayer to clear all scenes/fades and send zeros to OLA.
+        try:
+            self.set_value('/blackout', None)
+        except Exception as e:
+            Logger.warning(f'Blackout command to dmxplayer failed: {e}')
+
+        # Backup: write zeros directly to OLA.
+        zeros = ','.join(['0'] * 512)
+        for uid in universe_ids:
+            try:
+                subprocess.run(
+                    ['ola_set_dmx', '-u', str(uid), '-d', zeros],
+                    timeout=2, check=True,
+                    capture_output=True,
+                )
+            except Exception as e:
+                Logger.error(f"Blackout ola_set_dmx failed for universe {uid}: {e}")
+
+        Logger.info(f"Sent DMX blackout for universe(s) {universe_ids}")
+
+@logged
+def start_dmx_player(
+    port: int,
+    node_uuid: str,
+    path: str,
+    args: str | None = None,
+    timeout: float = 5.0
+) -> tuple[DmxPlayer, DmxClient]:
+    """Start a DMX player and its OSC client.
+    
+    This function creates and starts a cuems-dmxplayer process and
+    sets up an OSC client to control it.
+    
+    Args:
+        port: OSC port for dmxplayer communication
+        node_uuid: Unique identifier for this player node
+        path: Path to cuems-dmxplayer binary
+        args: Additional arguments for cuems-dmxplayer
+        timeout: Maximum time to wait for player to start (seconds)
+    
+    Returns:
+        Tuple containing the DmxPlayer and DmxClient instances
+        
+    Raises:
+        RuntimeError: If player fails to start within timeout or thread dies
+    """
+    # Create and start the player with timeout handling
+    player = DmxPlayer(
+        port=port,
+        node_uuid=node_uuid,
+        path=path,
+        args=args
+    )
+    player.start(timeout=timeout)
+    
+    # Create OSC client for controlling the player
+    client = DmxClient(
+        player_port=port,
+        client_name=f'{node_uuid}_dmxplayer'
+    )
+    
+    Logger.info(f"DMX player started: {node_uuid}_dmxplayer on port {port}")
+    return player, client
diff --git a/src/cuemsengine/players/JackConnectionManager.py b/src/cuemsengine/players/JackConnectionManager.py
new file mode 100644
index 0000000..fd8dc61
--- /dev/null
+++ b/src/cuemsengine/players/JackConnectionManager.py
@@ -0,0 +1,226 @@
+"""
+JACK Connection Manager
+
+This module provides a simple interface for managing JACK audio connections
+using the python-jack (JACK-Client) library.
+"""
+
+try:
+    import jack
+except (ImportError, OSError):
+    jack = None
+
+from cuemsutils.log import Logger, logged
+
+
+class JackConnectionManager:
+    """Manager for JACK audio connections.
+    
+    Uses the python-jack (JACK-Client) library to manage JACK port connections.
+    Creates a lightweight client just for querying and connection management.
+    """
+    
+    def __init__(self, client_name: str = 'cuems_connection_manager'):
+        """Initialize the JACK connection manager.
+        
+        Args:
+            client_name: Name for the JACK client (default: 'cuems_connection_manager')
+        """
+        self.client_name = client_name
+        self._client = None
+        self._initialize_client()
+    
+    def _initialize_client(self):
+        """Initialize the JACK client."""
+        if jack is None:
+            Logger.warning("JACK library not available -- JackConnectionManager running in no-op mode")
+            self._client = None
+            return
+        try:
+            # Create a client without ports, just for connection management
+            self._client = jack.Client(self.client_name, no_start_server=True)
+            Logger.debug(f"JACK connection manager client '{self.client_name}' initialized")
+        except jack.JackError as e:
+            Logger.error(f"Failed to initialize JACK client: {e}")
+            self._client = None
+    
+    @property
+    def client(self):
+        """Get the JACK client, reinitializing if necessary."""
+        if self._client is None:
+            self._initialize_client()
+        return self._client
+    
+    @logged
+    def get_ports(self, pattern: str = None, is_audio: bool = True, 
+                  is_output: bool = None, is_input: bool = None) -> list[str]:
+        """Get list of JACK ports.
+        
+        Args:
+            pattern: Optional regex pattern to filter port names
+            is_audio: Filter for audio ports (default: True)
+            is_output: Filter for output ports (default: None = all)
+            is_input: Filter for input ports (default: None = all)
+            
+        Returns:
+            List of port names
+        """
+        if self.client is None:
+            Logger.error("JACK client not initialized")
+            return []
+        
+        try:
+            ports = self.client.get_ports(
+                name_pattern=pattern if pattern else '',
+                is_audio=is_audio,
+                is_output=is_output,
+                is_input=is_input
+            )
+            port_names = [p.name for p in ports]
+            Logger.debug(f"Found {len(port_names)} JACK ports")
+            return port_names
+            
+        except jack.JackError as e:
+            Logger.error(f"Error getting JACK ports: {e}")
+            return []
+        except Exception as e:
+            Logger.error(f"Unexpected error getting JACK ports: {e}")
+            return []
+    
+    def port_exists(self, port_name: str) -> bool:
+        """Check if a JACK port exists.
+        
+        Args:
+            port_name: Full name of the port (e.g., 'client_name:port_name')
+            
+        Returns:
+            True if the port exists, False otherwise
+        """
+        if self.client is None:
+            return False
+        
+        try:
+            ports = self.client.get_ports(name_pattern=f'^{port_name}$')
+            return len(ports) > 0
+        except Exception:
+            return False
+    
+    @logged
+    def connect_by_name(self, source_port: str, destination_port: str) -> bool:
+        """Connect two JACK ports by name.
+        
+        Args:
+            source_port: Name of the source port (output)
+            destination_port: Name of the destination port (input)
+            
+        Returns:
+            True if connection successful, False otherwise
+        """
+        if self.client is None:
+            Logger.error("JACK client not initialized")
+            return False
+        
+        try:
+            # Check if already connected
+            if self.is_connected(source_port, destination_port):
+                Logger.debug(f"Ports already connected: {source_port} -> {destination_port}")
+                return True
+            
+            # Make the connection
+            self.client.connect(source_port, destination_port)
+            Logger.info(f"Connected {source_port} -> {destination_port}")
+            return True
+                
+        except jack.JackError as e:
+            Logger.warning(f"Failed to connect {source_port} -> {destination_port}: {e}")
+            return False
+        except Exception as e:
+            Logger.error(f"Unexpected error connecting JACK ports: {e}")
+            return False
+    
+    @logged
+    def disconnect_by_name(self, source_port: str, destination_port: str) -> bool:
+        """Disconnect two JACK ports by name.
+        
+        Args:
+            source_port: Name of the source port (output)
+            destination_port: Name of the destination port (input)
+            
+        Returns:
+            True if disconnection successful, False otherwise
+        """
+        if self.client is None:
+            Logger.error("JACK client not initialized")
+            return False
+        
+        try:
+            self.client.disconnect(source_port, destination_port)
+            Logger.info(f"Disconnected {source_port} -> {destination_port}")
+            return True
+                
+        except jack.JackError as e:
+            Logger.warning(f"Failed to disconnect {source_port} -> {destination_port}: {e}")
+            return False
+        except Exception as e:
+            Logger.error(f"Unexpected error disconnecting JACK ports: {e}")
+            return False
+    
+    @logged
+    def get_connections(self, port_name: str) -> list[str]:
+        """Get all connections for a given port.
+        
+        Args:
+            port_name: Name of the port to query
+            
+        Returns:
+            List of connected port names
+        """
+        if self.client is None:
+            Logger.error("JACK client not initialized")
+            return []
+        
+        try:
+            # Get the port object
+            ports = self.client.get_ports(name_pattern=f'^{port_name}$')
+            if not ports:
+                Logger.warning(f"Port not found: {port_name}")
+                return []
+            
+            port = ports[0]
+            
+            # Get connections
+            connections = self.client.get_all_connections(port)
+            connection_names = [conn.name for conn in connections]
+            
+            return connection_names
+            
+        except jack.JackError as e:
+            Logger.error(f"Error getting connections for port {port_name}: {e}")
+            return []
+        except Exception as e:
+            Logger.error(f"Unexpected error getting connections: {e}")
+            return []
+    
+    @logged
+    def is_connected(self, source_port: str, destination_port: str) -> bool:
+        """Check if two ports are connected.
+        
+        Args:
+            source_port: Name of the source port
+            destination_port: Name of the destination port
+            
+        Returns:
+            True if connected, False otherwise
+        """
+        connections = self.get_connections(source_port)
+        return destination_port in connections
+    
+    def __del__(self):
+        """Cleanup JACK client on deletion."""
+        if self._client is not None:
+            try:
+                self._client.close()
+                Logger.debug(f"JACK connection manager client '{self.client_name}' closed")
+            except Exception as e:
+                Logger.debug(f"Error closing JACK client: {e}")
+
diff --git a/src/cuemsengine/players/Player.py b/src/cuemsengine/players/Player.py
new file mode 100644
index 0000000..6d93386
--- /dev/null
+++ b/src/cuemsengine/players/Player.py
@@ -0,0 +1,114 @@
+from subprocess import Popen, PIPE, STDOUT, CalledProcessError
+from threading import Thread
+from time import sleep
+import os
+
+from cuemsutils.log import logged, Logger
+
+class Player(Thread):
+    """Base class for all players in the system.
+        Holds the common methods and attributes for all players.
+        Extends the Thread class.
+        Can call a subprocess, kill it and start the Thread.
+
+        IMPORTANT: The run method must be implemented in the child classes.
+
+    """
+    def __init__(self, daemon: bool = True):
+        """Initializes the Player object and a Thread object with the daemon attribute set to True.
+        
+        Args:
+            daemon (bool, optional): Sets the daemon attribute of the Thread object. Defaults to True.
+        """
+        super().__init__(daemon = daemon)
+        self.p = None
+        self.pid = None
+        self.firstrun = True
+        self.started = False
+        self.status = 'starting'  # 'starting', 'running', 'failed'
+        self.error = None
+
+    def run(self):
+        raise NotImplementedError
+    
+    @logged
+    def call_subprocess(self, call_args):
+        """Calls a subprocess with the given arguments.
+        
+        Automatically handles exceptions and updates status/error attributes.
+        Sets status to 'running' on success, 'failed' on error.
+        """
+        try:
+            my_env= os.environ.copy()
+            my_env["DISPLAY"] = ":0"
+            self.p = Popen(call_args, stdout=PIPE, stderr=STDOUT, env=my_env)
+            self.pid = self.p.pid
+            
+            stdout_lines_iterator = iter(self.p.stdout.readline, b'')
+            while self.p.poll() is None:
+                for line in stdout_lines_iterator:
+                    Logger.debug(f"Subprocess output: {line}")
+                # Prevent CPU spinning when subprocess has no output
+                sleep(0.01)
+            
+            self.status = 'running'
+        except Exception as e:
+            self.status = 'failed'
+            self.error = e
+            Logger.error(f"Failed to start player subprocess: {e}")
+            Logger.exception(e)
+            raise
+
+    @logged
+    def kill(self):
+        """Kills the subprocess."""
+        if self.p:
+            self.p.kill()
+            self.started = False
+    
+    @logged    
+    def start(self, timeout: float = 5.0):
+        """Starts the player and waits for it to initialize.
+        
+        Args:
+            timeout: Maximum time to wait for player to start (seconds)
+            
+        Raises:
+            RuntimeError: If player fails to start within timeout or thread dies
+        """
+        # Start the thread
+        if self.firstrun:
+            super().start()
+            self.firstrun = False
+        elif not self.is_alive():
+            super().start()
+        self.started = True
+        
+        # Wait for player process to start with timeout
+        from time import sleep
+        elapsed = 0.0
+        interval = 0.01
+        while self.pid is None and elapsed < timeout:
+            # Check if the thread is still alive
+            if not self.is_alive():
+                error_msg = f"Player thread died during startup"
+                if self.error:
+                    error_msg += f": {self.error}"
+                Logger.error(error_msg)
+                raise RuntimeError(error_msg)
+            
+            # Check if player failed
+            if self.status == 'failed':
+                error_msg = f"Player failed to start: {self.error}"
+                Logger.error(error_msg)
+                raise RuntimeError(error_msg)
+            
+            sleep(interval)
+            elapsed += interval
+        
+        # Timeout check
+        if self.pid is None:
+            error_msg = f"Player failed to start within {timeout}s timeout"
+            Logger.error(error_msg)
+            self.kill()
+            raise RuntimeError(error_msg)
diff --git a/src/cuemsengine/players/PlayerHandler.py b/src/cuemsengine/players/PlayerHandler.py
new file mode 100644
index 0000000..f47cf0a
--- /dev/null
+++ b/src/cuemsengine/players/PlayerHandler.py
@@ -0,0 +1,680 @@
+import subprocess
+from time import sleep
+
+from cuemsutils.log import Logger
+from cuemsutils.cues import AudioCue, DmxCue, VideoCue
+from cuemsutils.cues.Cue import Cue
+from functools import partial
+from threading import RLock
+from typing import Callable
+
+from .AudioPlayer import AudioPlayer, AudioClient, start_audio_output
+from .VideoPlayer import VideoPlayer, VideoClient, VideoOutput
+from .AudioMixer import AudioMixer, MixerClient, start_audio_mixer
+from .DmxPlayer import DmxPlayer, DmxClient, start_dmx_player
+
+from .Player import Player
+from ..tools.PortHandler import PORT_HANDLER
+
+DEFAULT_MEDIA_FOLDER = '/opt/cuems_library/media/'
+
+class PlayerHandler:
+    """
+    This class is responsible for handling and generating player objects.
+
+    It is a singleton class, so it will
+    only be instantiated once.
+
+    Holds a list of armed cues and provides methods to use them.
+    """
+    _instance: 'PlayerHandler | None' = None
+
+    # Instance attributes (declared for IDE/type checker support)
+    _audio_output_generator: partial | None
+    _audio_mixer: AudioMixer | None
+    _audio_mixer_client: MixerClient | None
+    _cue_players: dict[Cue, Player]
+    _audio_players_by_id: dict[str, AudioPlayer]
+    _dmx_player: DmxPlayer | None
+    _dmx_player_client: DmxClient | None
+    _player_endpoints_generator: partial | None
+    _video_client: VideoClient | None
+    _video_outputs: dict[str, VideoOutput]
+    _audio_outputs: dict[str, dict]
+    _loaded_layer_ids: set[str]
+    _outputs_map: dict | None
+    _lock: RLock
+    _media_folder: str
+    _node_uuid: str | None
+
+    def __new__(cls, *args, **kwargs):
+        """Singleton pattern: Ensure only one instance is created"""
+        if not cls._instance:
+            cls._instance = super(PlayerHandler, cls).__new__(cls)
+
+            cls._instance._audio_output_generator = None
+            cls._instance._audio_mixer = None
+            cls._instance._audio_mixer_client = None
+            cls._instance._cue_players = {}
+            cls._instance._audio_players_by_id = {}
+            cls._instance._dmx_player = None
+            cls._instance._dmx_player_client = None
+            cls._instance._player_endpoints_generator = None
+            cls._instance._video_client = None
+            cls._instance._video_outputs = {}
+            cls._instance._audio_outputs = {}
+            cls._instance._loaded_layer_ids = set()
+            cls._instance._outputs_map = None
+            cls._instance._lock = RLock()
+            cls._instance._media_folder = DEFAULT_MEDIA_FOLDER
+            cls._instance._node_uuid = None
+        return cls._instance
+
+
+    # ---------------------------
+    # Players List Management
+    # ---------------------------
+
+    def store_cue_player(self, cue: Cue, player: Player):
+        """Stores a cue player"""
+        with self._lock:
+            self._cue_players[cue] = player
+
+    def get_cue_player(self, cue: Cue) -> Player:
+        """Gets a cue player"""
+        with self._lock:
+            return self._cue_players[cue]
+
+    def remove_cue_player(self, cue: Cue):
+            """Removes a cue player"""
+            osc_client = None
+            cue_id = str(cue.id)
+            with self._lock:
+                try:
+                    player = self._cue_players.pop(cue)
+                except KeyError:
+                    # Try to find by ID in _audio_players_by_id
+                    player = self._audio_players_by_id.pop(cue_id, None)
+                    if player is None:
+                        Logger.debug(f'Cue player not found for cue {cue.id}')
+                        return
+                
+                # Also remove from ID-based tracking
+                self._audio_players_by_id.pop(cue_id, None)
+                
+                # Save OSC client reference before clearing
+                osc_client = getattr(cue, '_osc', None)
+                cue._osc = None
+            if isinstance(player, AudioPlayer):
+                killed = self._kill_audio_player(player, osc_client, cue_id)
+                # Free port AFTER process is dead to prevent concurrent arm
+                # from getting a port the OS still has bound (Bug 2 fix).
+                # Skip if kill failed — process still holds the port.
+                if killed:
+                    PORT_HANDLER.remove_ports(cue)
+
+    def reset_all(self):
+        """Complete reset of PlayerHandler for testing"""
+        Logger.debug('Performing complete PlayerHandler reset')
+        self.reset_video_layers()
+        self._video_outputs = {}
+        self._cue_players = {}
+        self._outputs_map = None
+        with self._lock:
+            self._loaded_layer_ids.clear()
+
+
+    # ---------------------------
+    # Audio Player Management
+    # ---------------------------
+
+    def set_audio_output_generator(self, path: str, args: str):
+        """Sets the audio player generator"""
+        Logger.info(f'Setting audio output generator to {path} {args}')
+        self._audio_output_generator = partial(start_audio_output, path=path, args=args)
+
+    def set_audio_outputs(self, audio_outputs: dict[str, dict]) -> None:
+        """Store audio output configs keyed by <id>."""
+        self._audio_outputs = audio_outputs
+
+    def resolve_audio_port(self, output_id: str) -> str | None:
+        """Resolve an output <id> to its JACK port name (mapped_to)."""
+        output = self._audio_outputs.get(output_id)
+        if output:
+            return output.get('mapped_to')
+        return None
+
+    def start_audio_mixer(self, audio_outputs: list, port: int, mixer_id: str, path: str = None, args: str | None = None) -> tuple[AudioMixer, MixerClient]:
+        """Starts the audio mixer for this node.
+        
+        Args:
+            audio_outputs: List of audio output configurations
+            port: OSC port for jack-volume communication
+            node_uuid: Unique identifier for this mixer node
+            path: Optional path to jack-volume binary
+            
+        Returns:
+            Tuple containing the AudioMixer and MixerClient instances
+        """
+        Logger.info(f'Starting audio mixer {mixer_id}')
+        self._audio_mixer, self._audio_mixer_client = start_audio_mixer(
+            audio_outputs=audio_outputs,
+            port=port,
+            mixer_id=mixer_id,
+            path=path,
+            args=args
+        )
+        return self._audio_mixer, self._audio_mixer_client
+
+    def get_audio_mixer(self) -> AudioMixer:
+        """Returns the audio mixer instance."""
+        return self._audio_mixer
+
+    def get_audio_mixer_client(self) -> MixerClient:
+        """Returns the audio mixer client instance."""
+        return self._audio_mixer_client
+
+    def _kill_audio_player(self, player: AudioPlayer, osc_client: AudioClient, cue_id: str) -> bool:
+        """Helper method to kill an audio player process.
+
+        The order is critical: disconnect JACK ports first, THEN send /quit.
+        If /quit is sent first the player destroys its JACK client immediately,
+        and subsequent disconnect calls hit non-existent ports which can corrupt
+        JACK's shared-memory semaphore registry.
+
+        Returns:
+            True if the process was successfully killed (or was already dead),
+            False if the process could not be killed (still alive after timeout).
+        """
+        if player is None:
+            return True
+
+        # 1. Disconnect player from the mixer BEFORE destroying its JACK client
+        if self._audio_mixer is not None:
+            try:
+                uuid_slug = ''.join(cue_id.split('-'))
+                player_name = f'Audio_Player-{uuid_slug}'
+                self._audio_mixer.disconnect_player(player_name)
+                Logger.debug(f'Disconnected {player_name} from mixer')
+            except Exception as e:
+                Logger.warning(f'Failed to disconnect audio player from mixer: {e}')
+
+        # 2. Send /quit OSC command to gracefully stop the player
+        if osc_client is not None:
+            try:
+                osc_client.set_value('/quit', True)
+                Logger.debug(f'Sent /quit command to audio player for cue {cue_id}')
+            except Exception as e:
+                Logger.warning(f'Failed to send /quit to audio player: {e}')
+
+            # Free the random OSC local port back into the pool
+            local_port = getattr(osc_client, 'local_port', None)
+            if local_port is not None:
+                PORT_HANDLER.remove_random_port(local_port)
+
+        # 3. Kill the subprocess and wait for the OS to release its resources.
+        #    SIGKILL is near-instant; 1s timeout handles edge cases (D state).
+        process_dead = True
+        try:
+            if player.p is not None:
+                player.p.kill()
+                player.p.wait(timeout=1.0)
+                Logger.debug(f'Killed audio player subprocess for cue {cue_id}')
+        except subprocess.TimeoutExpired:
+            Logger.error(f'Audio player process for cue {cue_id} did not die after SIGKILL — port may still be bound')
+            process_dead = False
+        except Exception as e:
+            Logger.warning(f'Failed to kill audio player subprocess: {e}')
+
+        # Wait for thread to finish
+        try:
+            player.join(timeout=0.5)
+        except Exception as e:
+            Logger.warning(f'Failed to join audio player thread: {e}')
+
+        # 4. Verify JACK has removed the dead client's ports.
+        #    wait() reaps the process, which triggers JACK to unregister the
+        #    client. Poll briefly to confirm ports are gone before returning.
+        if process_dead and self._audio_mixer is not None:
+            uuid_slug = ''.join(cue_id.split('-'))
+            player_name = f'Audio_Player-{uuid_slug}'
+            for _ in range(10):
+                if not self._audio_mixer.conn_man.port_exists(f'{player_name}:outport 0'):
+                    break
+                sleep(0.1)
+            else:
+                Logger.warning(f'JACK client {player_name} still has ports after kill')
+
+        return process_dead
+
+    def kill_all_audio_players(self):
+        """Kill ALL tracked audio players - used during project cleanup"""
+        with self._lock:
+            players_to_kill = list(self._audio_players_by_id.items())
+            self._audio_players_by_id.clear()
+
+            # Also clear audio players from _cue_players, saving the OSC
+            # client so _kill_audio_player can free the random port.
+            cue_players_to_remove = []
+            for cue, player in self._cue_players.items():
+                if isinstance(player, AudioPlayer):
+                    osc_client = getattr(cue, '_osc', None)
+                    cue._osc = None
+                    cue_players_to_remove.append((cue, player, osc_client))
+            for cue, player, osc_client in cue_players_to_remove:
+                self._cue_players.pop(cue, None)
+                players_to_kill.append((str(cue.id), player, osc_client))
+
+        Logger.info(f'Killing {len(players_to_kill)} audio players during cleanup')
+        for entry in players_to_kill:
+            if len(entry) == 3:
+                cue_id, player, osc_client = entry
+            else:
+                cue_id, player = entry
+                osc_client = None
+            self._kill_audio_player(player, osc_client, cue_id)
+
+    def cleanup_zombie_jack_clients(self) -> int:
+        """Scan for JACK Audio_Player clients whose processes have died.
+
+        Enumerates all JACK ports matching Audio_Player-* and cross-references
+        with tracked players in _audio_players_by_id. Unmatched ports are
+        zombies left by crashed processes — disconnect them from the mixer.
+
+        Called on project load to clear stale state from previous runs.
+
+        Returns:
+            Number of zombie clients found and cleaned up.
+        """
+        if self._audio_mixer is None:
+            return 0
+
+        all_ports = self._audio_mixer.conn_man.get_ports(
+            pattern='Audio_Player-.*', is_audio=True, is_output=True
+        )
+        if not all_ports:
+            return 0
+
+        # Extract unique client names from port names (e.g. "Audio_Player-abc123:outport 0" → "Audio_Player-abc123")
+        jack_clients = set()
+        for port_name in all_ports:
+            client_name = port_name.split(':')[0]
+            jack_clients.add(client_name)
+
+        # Build set of tracked player client names
+        with self._lock:
+            tracked_slugs = set()
+            for cue_id in self._audio_players_by_id:
+                slug = ''.join(cue_id.split('-'))
+                tracked_slugs.add(f'Audio_Player-{slug}')
+
+        zombies = jack_clients - tracked_slugs
+        if not zombies:
+            return 0
+
+        Logger.warning(f'Found {len(zombies)} zombie JACK audio clients: {zombies}')
+        for client_name in zombies:
+            try:
+                self._audio_mixer.disconnect_player(client_name)
+                Logger.info(f'Disconnected zombie JACK client {client_name}')
+            except Exception as e:
+                Logger.warning(f'Failed to disconnect zombie {client_name}: {e}')
+
+        return len(zombies)
+
+    def kill_orphaned_audio_processes(self):
+        """Kill cuems-audioplayer OS processes not tracked by this engine.
+
+        On engine restart, previously spawned audioplayer processes survive
+        because they are independent subprocesses. The new engine has no
+        reference to them, so they steal JACK client names and cause silence.
+        """
+        import os
+        import signal
+        result = subprocess.run(
+            ['pgrep', '-f', 'cuems-audioplayer'],
+            capture_output=True, text=True
+        )
+        if result.returncode != 0:
+            return
+
+        tracked_pids = set()
+        with self._lock:
+            for player in self._audio_players_by_id.values():
+                if player and player.p:
+                    tracked_pids.add(player.p.pid)
+
+        for pid_str in result.stdout.strip().split('\n'):
+            if not pid_str:
+                continue
+            pid = int(pid_str)
+            if pid not in tracked_pids:
+                Logger.warning(f'Killing orphaned audioplayer process {pid}')
+                try:
+                    os.kill(pid, signal.SIGKILL)
+                except ProcessLookupError:
+                    pass
+
+    # ---------------------------
+    # Audio Cue Management
+    # ---------------------------
+
+    def new_audio_output(self, cue: AudioCue) -> None:
+        """Creates a new audio output for the given cue
+
+        The player is stored in the player handler and the osc client is assigned to the cue.
+        After creating the player, it will be automatically connected to the audio mixer if one exists.
+        
+        Args:
+            cue: The cue to create the audio output for
+
+        Returns:
+            None
+        """
+        Logger.debug(f'Creating new audio output for cue {cue.id}')
+        if self._audio_output_generator is None:
+            raise ValueError("Audio output generator not set")
+
+        # Kill any existing player for this cue before spawning a new one.
+        # This prevents orphaned audioplayer processes when a cue is re-armed
+        # without being disarmed first (the old process would keep running,
+        # holding its JACK client and OSC port, while its reference is silently
+        # overwritten in _audio_players_by_id).
+        cue_id = str(cue.id)
+        with self._lock:
+            existing_player = self._audio_players_by_id.pop(cue_id, None)
+            self._cue_players.pop(cue, None)
+        if existing_player is not None:
+            Logger.warning(f'Killing existing audio player for cue {cue_id} before re-arm')
+            # Save and clear OSC client so loop_audioCue stops sending to the
+            # dying player (it will hit AttributeError, caught by its blanket
+            # except AttributeError handler and exit silently).
+            existing_osc = getattr(cue, '_osc', None)
+            cue._osc = None
+            killed = self._kill_audio_player(existing_player, existing_osc, cue_id)
+            # Free assigned port AFTER process is dead to avoid Bug 2's race.
+            # Skip if kill failed — process still holds the port.
+            if killed:
+                PORT_HANDLER.remove_ports(cue)
+
+        ports = PORT_HANDLER.assign_ports(['audio_output'], cue)
+        player, client = self._audio_output_generator(
+            port=ports['audio_output'],
+            media=self.media_path(cue.media['file_name']),
+            uuid=str(cue.id)
+        )
+        cue._osc = client
+        self.set_player_endpoints(cue)
+        self.store_cue_player(cue, player)
+        
+        # Also track by cue ID string for cleanup when cue object is lost
+        with self._lock:
+            self._audio_players_by_id[str(cue.id)] = player
+        
+        # Connect the player to the audio mixer if available
+        if self._audio_mixer is not None:
+            uuid_slug = ''.join(str(cue.id).split('-'))
+            player_name = f'Audio_Player-{uuid_slug}'
+
+            # Resolve each output_name to its JACK port via the ID in the mappings.
+            # output_name format: "{node_uuid}_{output_id}"  (e.g. "a3811d78-..._6")
+            # resolve_audio_port maps the numeric ID → JACK port name (e.g. "usb_audio:playback_1")
+            selected_outputs = []
+            for output in getattr(cue, 'outputs', []):
+                raw = output.get('output_name', '')
+                output_id = raw[37:] if len(raw) > 37 else None  # strip "{uuid}_"
+                if output_id is not None:
+                    jack_port = self.resolve_audio_port(output_id)
+                    if jack_port:
+                        selected_outputs.append(jack_port)
+                    else:
+                        Logger.warning(f'Cannot resolve audio output ID "{output_id}" to a JACK port')
+
+            if not selected_outputs:
+                Logger.warning(f'No valid audio outputs resolved for cue {cue.id}, skipping mixer connection')
+            else:
+                Logger.info(f'Connecting {player_name} to outputs: {selected_outputs}')
+                self._audio_mixer.connect_player_to_outputs(
+                    player_name=player_name,
+                    player_output_prefix='outport',
+                    selected_outputs=selected_outputs
+                )
+
+
+    # ---------------------------
+    # DMX Player Management
+    # ---------------------------
+
+    def start_dmx_player(self, port: int, node_uuid: str, path: str, args: str | None = None) -> tuple[DmxPlayer, DmxClient]:
+        """Starts the DMX player for this node.
+        
+        Args:
+            port: OSC port for dmxplayer communication
+            node_uuid: Unique identifier for this player node
+            path: Path to cuems-dmxplayer binary
+            
+        Returns:
+            Tuple containing the DmxPlayer and DmxClient instances
+        """
+        Logger.info(f'Starting DMX player for node {node_uuid}')
+        self._dmx_player, self._dmx_player_client = start_dmx_player(
+            port=port,
+            node_uuid=node_uuid,
+            path=path,
+            args=args
+        )
+        return self._dmx_player, self._dmx_player_client
+
+    def get_dmx_player(self) -> DmxPlayer:
+        """Returns the DMX player instance."""
+        return self._dmx_player
+
+    def get_dmx_player_client(self) -> DmxClient:
+        """Returns the DMX player client instance."""
+        return self._dmx_player_client
+
+    # def set_dmx_output_generator(cls, path: str, args: str):
+    #     """Sets the dmx player generator"""
+    #     cls._dmx_output_generator = partial(start_dmx_output, path, args)
+
+    # def new_dmx_output(cls, cue: DmxCue) -> None:
+    #     """Creates a new audio output for the given cue
+
+    #     The player is stored in the player handler and the osc client is assigned to the cue.
+        
+    #     Args:
+    #         cue: The cue to create the dmx output for
+
+    #     Returns:
+    #         None
+    #     """
+    #     if cls._dmx_output_generator is None:
+    #         raise ValueError("Audio output generator not set")
+    #     ports = PORT_HANDLER.assign_ports(['dmx_output'], cue)
+    #     player, client = cls._dmx_output_generator(
+    #         ports['dmx_output'],
+    #         cue.media['file_name']
+    #     )
+    #     cue._osc = client
+    #     cls.store_cue_player(cue, player)
+
+
+    # ---------------------------
+    # Video Player Management
+    # ---------------------------
+
+    def get_video_client(self) -> VideoClient:
+        """Returns the video client instance."""
+        return self._video_client
+
+    def set_video_client(self, port: int) -> None:
+        """Sets the video client for this node."""
+        Logger.info(f'Setting video client for node {self._node_uuid}')
+        self._video_client = VideoClient(player_port=port)
+
+    def start_video_outputs(self, output_names: dict[str, dict[str, any]]) -> None:
+        """Ensures that the all the required video output exist."""
+        Logger.info(f'Checking & starting video outputs for {output_names} ')
+        canvas_w, canvas_h = 0, 0
+        for cfg in output_names.values():
+            region = cfg.get('canvas_region') or {}
+            right = region.get('x', 0) + region.get('width', 1920)
+            bottom = region.get('y', 0) + region.get('height', 1080)
+            canvas_w = max(canvas_w, right)
+            canvas_h = max(canvas_h, bottom)
+        for output_name, output_config in output_names.items():
+            output_config['canvas_width'] = canvas_w
+            output_config['canvas_height'] = canvas_h
+            video_output = VideoOutput(**output_config)
+            video_output.apply_config(self._video_client)
+            self._video_outputs[output_name] = video_output
+
+    def get_video_output(self, output_name: str) -> VideoOutput:
+        """Returns the VideoOutput object for a given output name."""
+        return self._video_outputs[output_name]
+
+    def register_layer(self, layer_id: str) -> None:
+        """Track a layer as active in the videocomposer."""
+        with self._lock:
+            self._loaded_layer_ids.add(layer_id)
+
+    def deregister_layer(self, layer_id: str) -> None:
+        """Remove a layer from active tracking."""
+        with self._lock:
+            self._loaded_layer_ids.discard(layer_id)
+
+    def reset_videocomposer(self):
+        """Send atomic reset to videocomposer (removes all layers + resets master)."""
+        Logger.debug('Sending atomic reset to videocomposer')
+        if self._video_client is not None:
+            try:
+                self._video_client.set_value('/videocomposer/reset', None)
+            except Exception as e:
+                Logger.warning(f'Error sending reset to videocomposer: {e}')
+            # Remove all layer endpoints from the OSC client
+            with self._lock:
+                for layer_id in list(self._loaded_layer_ids):
+                    try:
+                        self._video_client.remove_layer_endpoints(layer_id)
+                    except Exception as e:
+                        Logger.debug(f'Error removing layer endpoints {layer_id}: {e}')
+        with self._lock:
+            self._loaded_layer_ids.clear()
+
+    def reset_video_layers(self):
+        """Unload all tracked video layers (video blackout). Legacy per-layer method."""
+        Logger.debug('Resetting video layers')
+        with self._lock:
+            if self._video_client is None:
+                self._loaded_layer_ids.clear()
+                return
+            for layer_id in list(self._loaded_layer_ids):
+                try:
+                    self._video_client.set_value('/videocomposer/layer/unload', layer_id)
+                    self._video_client.remove_layer_endpoints(layer_id)
+                except Exception as e:
+                    Logger.debug(f'Error unloading layer {layer_id}: {e}')
+            self._loaded_layer_ids.clear()
+
+    def quit_videocomposer(self):
+        """Quits the videocomposer process."""
+        Logger.debug('Quitting videocomposer')
+        if self._video_client is not None:
+            try:
+                self._video_client.set_value('/videocomposer/quit', None)
+            except Exception as e:
+                Logger.debug(f'Error sending quit to videocomposer: {e}')
+        self._video_client = None
+        self._video_outputs = {}
+        with self._lock:
+            self._loaded_layer_ids.clear()
+
+
+    # ---------------------------
+    # Helper functions
+    # ---------------------------
+
+    def set_player_endpoints_generator(self, func: Callable, *args, **kwargs):
+        """Sets the player endpoints generator"""
+        Logger.info(f'Setting player endpoints generator to {func}')
+        self._player_endpoints_generator = partial(func, *args, **kwargs)
+
+    def set_player_endpoints(self, cue: Cue) -> None:
+        """Sets the player endpoints for a given cue"""
+        if self._player_endpoints_generator is None:
+            raise ValueError("Player endpoints generator not set")
+        try:
+            self._player_endpoints_generator(cue)
+        except Exception as e:
+            Logger.error(f'Error setting player endpoints for cue {cue.id}: {e}')
+    
+    def set_outputs_map(self, outputs_map: dict):
+        """Set the outputs map for the player handler"""
+        self._outputs_map = outputs_map
+
+    def get_cue_output_name(self, cue: Cue) -> str | None:
+        """Get the output name for a given cue from the outputs map.
+        
+        Args:
+            cue: The cue to get the output name for
+
+        Returns:
+            The output name for the given cue or None if the cue is not found in the outputs map
+        
+        Raises:
+            AttributeError: If the outputs map is not set
+        """
+        if self._outputs_map is None:
+            Logger.error('Outputs map not set')
+            raise AttributeError('Outputs map not set')
+        outputs = self._outputs_map.get(cue.id, None)
+        # outputs_map stores lists, but callers expect a single string
+        if isinstance(outputs, list) and len(outputs) > 0:
+            return outputs[0]
+        return outputs
+
+    def get_all_cue_output_names(self, cue: Cue) -> list:
+        """Get all output names for a given cue from the outputs map.
+        
+        Args:
+            cue: The cue to get the output names for
+
+        Returns:
+            List of output names for the given cue, or empty list if not found
+        
+        Raises:
+            AttributeError: If the outputs map is not set
+        """
+        if self._outputs_map is None:
+            Logger.error('Outputs map not set')
+            raise AttributeError('Outputs map not set')
+        outputs = self._outputs_map.get(cue.id, None)
+        if isinstance(outputs, list):
+            return outputs
+        elif outputs:
+            return [outputs]
+        return []
+
+    def add_media_folder(self, path: str):
+        """Adds a media folder to the player handler"""
+        path = path.split('/')
+        if path[-1] != 'media':
+            path.append('media')
+        self._media_folder = '/' + '/'.join(path)
+        if self._media_folder[0:2] == "//":
+            self._media_folder = self._media_folder[1:]
+
+    def media_path(self, file_name: str) -> str:
+        """Returns the media path for a given file name"""
+        return self._media_folder + '/' + file_name
+
+    def add_node_uuid(self, uuid: str):
+        """Adds a node uuid to the player handler"""
+        self._node_uuid = uuid
+
+
+# ---------------------------
+# Singleton
+# ---------------------------
+
+PLAYER_HANDLER = PlayerHandler()
diff --git a/src/cuemsengine/players/VideoPlayer.py b/src/cuemsengine/players/VideoPlayer.py
new file mode 100644
index 0000000..5475a1e
--- /dev/null
+++ b/src/cuemsengine/players/VideoPlayer.py
@@ -0,0 +1,105 @@
+from cuemsutils.log import logged, Logger
+
+from .Player import Player
+from ..osc.OssiaClient import PlayerClient
+from ..osc.endpoints import OSC_VIDEOPLAYER_CONF, OSC_VIDEOPLAYER_LAYER_CONF
+
+class VideoPlayer(Player):
+    """Video player systemd service wrapper.
+
+    This class restarts the videocomposer service.
+    
+    IMPORTANT: This class should not be used, since videocomposer is a systemd service and not a subprocess.
+    """
+    def __init__(self):
+        super().__init__()
+        Logger.warning('Restarting the videocomposer service. Use VideoClient only to control videocomposer.')
+
+    @logged
+    def run(self):
+        process_call_list = [
+            'systemctl',
+            'restart',
+            'videocomposer.service'
+        ]
+        Logger.info(f'Restarting videocomposer service: {process_call_list}')
+        self.call_subprocess(process_call_list)
+
+class VideoClient(PlayerClient):
+    def __init__(self, player_port: int, name: str = "videocomposer"):
+        super().__init__(
+            player_port = player_port,
+            name = name,
+            endpoints = OSC_VIDEOPLAYER_CONF
+        )
+
+    def create_layer_endpoints(self, layer_id: str) -> None:
+        """Register per-layer OSC endpoints for the given layer_id."""
+        layer_endpoints = {
+            k.format(layer_id): v
+            for k, v in OSC_VIDEOPLAYER_LAYER_CONF.items()
+        }
+        self.create_endpoints(layer_endpoints)
+
+    def remove_layer_endpoints(self, layer_id: str) -> None:
+        """Remove per-layer OSC endpoints for the given layer_id."""
+        for template_path in OSC_VIDEOPLAYER_LAYER_CONF:
+            path = template_path.format(layer_id)
+            try:
+                self.remove_node(path)
+            except Exception as e:
+                Logger.debug(f'Could not remove endpoint {path}: {e}')
+
+class VideoOutput:
+    def __init__(self, **kwargs):
+        self.name = kwargs.get('name')
+        self.mapped_to = kwargs.get('mapped_to', self.name)
+        self.x = kwargs.get('x', 0)
+        self.y = kwargs.get('y', 0)
+        self.width = kwargs.get('width', 1920)
+        self.height = kwargs.get('height', 1080)
+        self.resolution = kwargs.get('resolution', "1080p")
+        self.canvas_region = kwargs.get('canvas_region', {
+            'x': self.x, 'y': self.y,
+            'width': self.width, 'height': self.height,
+        })
+        self.canvas_width = kwargs.get('canvas_width', self.width)
+        self.canvas_height = kwargs.get('canvas_height', self.height)
+
+    def get_layer_placement(self) -> tuple[int, int]:
+        """Returns (x, y) offset from canvas center to this output's center.
+
+        The videocomposer uses center-relative coordinates: (0, 0) = canvas center.
+        The renderer negates Y (glTranslatef(x, -y, 0)) because OpenGL Y points
+        up while screen Y points down.  The canvas FBO also has Y=0 at the
+        bottom, so we negate Y here to compensate — positive Y in the returned
+        value means "below canvas center" in screen coords, which maps to the
+        correct FBO position after the renderer's negation.
+        """
+        output_cx = self.canvas_region['x'] + self.canvas_region['width'] // 2
+        output_cy = self.canvas_region['y'] + self.canvas_region['height'] // 2
+        canvas_cx = self.canvas_width // 2
+        canvas_cy = self.canvas_height // 2
+        return (output_cx - canvas_cx, canvas_cy - output_cy)
+
+    def get_layer_scale(self) -> tuple[float, float]:
+        """Returns (scaleX, scaleY) to fit the video layer within this output's region.
+
+        The videocomposer renders layers at full canvas size with letterboxing.
+        For typical setups (ultra-wide canvas, 16:9 video), the video fills the
+        canvas height and is letterboxed horizontally.  The height ratio therefore
+        determines the correct uniform scale to fit the output region.
+        """
+        s = self.canvas_region['height'] / self.canvas_height if self.canvas_height else 1.0
+        return (s, s)
+
+    def apply_config(self, video_client: VideoClient) -> None:
+        """No-op: videocomposer reads display config from display.conf at startup.
+
+        cuems-generate-display-conf (ExecStartPre) generates display.conf from
+        default_mappings.xml — the single source of truth for connector→region
+        mappings.  The engine must NOT send /display/region or resolution_mode
+        because that caused the MultiOutputRenderer to reconfigure (and sometimes
+        switch to native 4K resolution, corrupting the canvas layout).
+        """
+        Logger.info(f'VideoOutput {self.mapped_to}: region ({self.x},{self.y} {self.width}x{self.height})')
diff --git a/src/cuemsengine/players/__init__.py b/src/cuemsengine/players/__init__.py
new file mode 100644
index 0000000..018a915
--- /dev/null
+++ b/src/cuemsengine/players/__init__.py
@@ -0,0 +1,12 @@
+from .VideoPlayer import VideoPlayer, VideoClient
+from .AudioPlayer import AudioPlayer, AudioClient
+from .DmxPlayer import DmxPlayer, DmxClient
+
+__all__ = [
+    'AudioClient',
+    'AudioPlayer',
+    'DmxClient',
+    'DmxPlayer',
+    'VideoClient',
+    'VideoPlayer'
+]
diff --git a/src/cuemsengine/scripts/__init__.py b/src/cuemsengine/scripts/__init__.py
new file mode 100644
index 0000000..ea65f6a
--- /dev/null
+++ b/src/cuemsengine/scripts/__init__.py
@@ -0,0 +1,2 @@
+"""CUEMS Engine CLI scripts package."""
+
diff --git a/src/cuemsengine/scripts/controller_engine.py b/src/cuemsengine/scripts/controller_engine.py
new file mode 100644
index 0000000..caab0b6
--- /dev/null
+++ b/src/cuemsengine/scripts/controller_engine.py
@@ -0,0 +1,61 @@
+#!/usr/bin/env python3
+"""
+CLI entry point for cuems-engine ControllerEngine.
+
+Runs in foreground mode, designed for systemd services (Type=simple).
+Systemd handles process supervision, logging (journald), and restart.
+
+Example systemd service:
+    [Service]
+    Type=simple
+    ExecStart=/usr/lib/cuems/bin/controller-engine
+    Restart=always
+"""
+
+import signal
+import argparse
+
+from cuemsutils.log import Logger
+from cuemsengine.ControllerEngine import ControllerEngine
+
+
+def main():
+    """Main entry point - run ControllerEngine in foreground"""
+    parser = argparse.ArgumentParser(
+        description='CUEMS Controller Engine',
+        formatter_class=argparse.RawDescriptionHelpFormatter,
+        epilog="""
+Runs in foreground mode. Designed for systemd services (Type=simple).
+Use Ctrl+C to stop when running manually.
+        """
+    )
+    parser.parse_args()
+    
+    Logger.info("Starting CUEMS Controller Engine")
+    
+    engine = ControllerEngine()
+    engine.start()
+    
+    def handle_signal(signum, frame):
+        Logger.info(f"Received signal {signum}, stopping engine...")
+        engine.stop_all()
+        raise SystemExit(0)
+    
+    signal.signal(signal.SIGTERM, handle_signal)
+    signal.signal(signal.SIGINT, handle_signal)
+    
+    try:
+        signal.pause()
+    except KeyboardInterrupt:
+        Logger.info("Received interrupt signal, stopping engine...")
+        engine.stop_all()
+    except SystemExit:
+        pass
+    except Exception as e:
+        Logger.error(f"Engine error: {type(e).__name__}: {e}")
+        engine.stop_all()
+        raise
+
+
+if __name__ == '__main__':
+    main()
diff --git a/src/cuemsengine/scripts/mock_audioplayer.py b/src/cuemsengine/scripts/mock_audioplayer.py
new file mode 100644
index 0000000..7b10213
--- /dev/null
+++ b/src/cuemsengine/scripts/mock_audioplayer.py
@@ -0,0 +1,74 @@
+#!/usr/bin/env python3
+"""
+Mock cuems-audioplayer replacement for headless/cloud deployments.
+
+Accepts the same CLI as cuems-audioplayer, starts an OSC UDP server on the
+assigned port, logs all received commands, and stays alive until /quit or SIGTERM.
+"""
+
+import argparse
+import signal
+import sys
+import threading
+
+from pythonosc.dispatcher import Dispatcher
+from pythonosc.osc_server import BlockingOSCUDPServer
+
+from cuemsutils.log import Logger
+
+
+def _make_handler(name: str):
+    def handler(address, *args):
+        Logger.info(f"[mock-audioplayer] OSC {address} {list(args)}")
+    handler.__name__ = name
+    return handler
+
+
+def _quit_handler(server_ref: list, address, *args):
+    Logger.info(f"[mock-audioplayer] OSC {address} -- shutting down")
+    if server_ref:
+        threading.Thread(target=server_ref[0].shutdown, daemon=True).start()
+
+
+def main():
+    parser = argparse.ArgumentParser(
+        description="Mock cuems-audioplayer for headless deployments"
+    )
+    parser.add_argument("--port", type=int, required=True, help="OSC UDP port")
+    parser.add_argument("--uuid", type=str, default=None, help="Player UUID")
+    parser.add_argument("media", nargs="?", default=None, help="Media file path")
+    args, _ = parser.parse_known_args()
+
+    Logger.info(
+        f"[mock-audioplayer] starting -- port={args.port} uuid={args.uuid} media={args.media}"
+    )
+
+    dispatcher = Dispatcher()
+    server_ref = []
+
+    dispatcher.map("/quit", lambda address, *a: _quit_handler(server_ref, address, *a))
+    for endpoint in ("/load", "/play", "/stop", "/vol0", "/vol1", "/volmaster",
+                     "/mtcfollow", "/offset", "/check", "/stoponlost"):
+        dispatcher.map(endpoint, _make_handler(endpoint))
+    dispatcher.set_default_handler(lambda address, *a: Logger.info(
+        f"[mock-audioplayer] OSC {address} {list(a)}"
+    ))
+
+    server = BlockingOSCUDPServer(("0.0.0.0", args.port), dispatcher)
+    server_ref.append(server)
+
+    def handle_signal(signum, frame):
+        Logger.info(f"[mock-audioplayer] signal {signum}, shutting down")
+        threading.Thread(target=server.shutdown, daemon=True).start()
+
+    signal.signal(signal.SIGTERM, handle_signal)
+    signal.signal(signal.SIGINT, handle_signal)
+
+    Logger.info(f"[mock-audioplayer] listening on port {args.port}")
+    server.serve_forever()
+    Logger.info("[mock-audioplayer] stopped")
+    sys.exit(0)
+
+
+if __name__ == "__main__":
+    main()
diff --git a/src/cuemsengine/scripts/mock_dmxplayer.py b/src/cuemsengine/scripts/mock_dmxplayer.py
new file mode 100644
index 0000000..26b4286
--- /dev/null
+++ b/src/cuemsengine/scripts/mock_dmxplayer.py
@@ -0,0 +1,68 @@
+#!/usr/bin/env python3
+"""
+Mock cuems-dmxplayer replacement for headless/cloud deployments.
+
+Accepts the same CLI as cuems-dmxplayer, starts an OSC UDP server on the
+assigned port, logs all received DMX commands, and stays alive until /quit or SIGTERM.
+"""
+
+import argparse
+import signal
+import sys
+import threading
+
+from pythonosc.dispatcher import Dispatcher
+from pythonosc.osc_server import BlockingOSCUDPServer
+
+from cuemsutils.log import Logger
+
+
+def main():
+    parser = argparse.ArgumentParser(
+        description="Mock cuems-dmxplayer for headless deployments"
+    )
+    parser.add_argument("--port", type=int, required=True, help="OSC UDP port")
+    parser.add_argument("--uuid", type=str, required=True, help="Player node UUID")
+    args, _ = parser.parse_known_args()
+
+    Logger.info(
+        f"[mock-dmxplayer] starting -- port={args.port} uuid={args.uuid}"
+    )
+
+    dispatcher = Dispatcher()
+    server_ref = []
+
+    def log_handler(address, *osc_args):
+        Logger.info(f"[mock-dmxplayer] OSC {address} {list(osc_args)}")
+
+    def quit_handler(address, *osc_args):
+        Logger.info(f"[mock-dmxplayer] OSC {address} -- shutting down")
+        if server_ref:
+            threading.Thread(target=server_ref[0].shutdown, daemon=True).start()
+
+    dispatcher.map("/quit", quit_handler)
+    for endpoint in ("/frame", "/mtc_time", "/start_offset", "/fade_time",
+                     "/check", "/stoponlost", "/mtcfollow"):
+        dispatcher.map(endpoint, log_handler)
+    dispatcher.set_default_handler(lambda address, *a: Logger.info(
+        f"[mock-dmxplayer] OSC {address} {list(a)}"
+    ))
+
+    server = BlockingOSCUDPServer(("0.0.0.0", args.port), dispatcher)
+    server_ref.append(server)
+
+    def handle_signal(signum, frame):
+        Logger.info(f"[mock-dmxplayer] signal {signum}, shutting down")
+        threading.Thread(target=server.shutdown, daemon=True).start()
+
+    signal.signal(signal.SIGTERM, handle_signal)
+    signal.signal(signal.SIGINT, handle_signal)
+
+    Logger.info(f"[mock-dmxplayer] listening on port {args.port}")
+    server.serve_forever()
+    Logger.info("[mock-dmxplayer] stopped")
+    sys.exit(0)
+
+
+if __name__ == "__main__":
+    main()
diff --git a/src/cuemsengine/scripts/mock_jack_volume.py b/src/cuemsengine/scripts/mock_jack_volume.py
new file mode 100644
index 0000000..fbeb442
--- /dev/null
+++ b/src/cuemsengine/scripts/mock_jack_volume.py
@@ -0,0 +1,73 @@
+#!/usr/bin/env python3
+"""
+Mock jack-volume replacement for headless/cloud deployments.
+
+Accepts the same CLI as jack-volume, starts an OSC UDP server on the
+assigned port, logs all received volume commands, and stays alive until SIGTERM.
+"""
+
+import argparse
+import signal
+import sys
+import threading
+
+from pythonosc.dispatcher import Dispatcher
+from pythonosc.osc_server import BlockingOSCUDPServer
+
+from cuemsutils.log import Logger
+
+
+def main():
+    parser = argparse.ArgumentParser(
+        description="Mock jack-volume for headless deployments"
+    )
+    parser.add_argument("-c", dest="client_name", default="mock_mixer", help="JACK client name")
+    parser.add_argument("-p", dest="port", type=int, required=True, help="OSC UDP port")
+    parser.add_argument("-n", dest="channels", type=int, default=2, help="Number of channels")
+    parser.add_argument("-s", dest="server", default=None, help="JACK server name (ignored)")
+    args, _ = parser.parse_known_args()
+
+    Logger.info(
+        f"[mock-jack-volume] starting -- client={args.client_name} "
+        f"port={args.port} channels={args.channels}"
+    )
+
+    dispatcher = Dispatcher()
+    server_ref = []
+
+    def volume_handler(address, *osc_args):
+        Logger.info(f"[mock-jack-volume] OSC {address} {list(osc_args)}")
+
+    def quit_handler(address, *osc_args):
+        Logger.info(f"[mock-jack-volume] OSC {address} -- shutting down")
+        if server_ref:
+            threading.Thread(target=server_ref[0].shutdown, daemon=True).start()
+
+    # Register dynamic volume paths based on client name and channel count
+    base = f"/audiomixer/{args.client_name}"
+    dispatcher.map(f"{base}/master", volume_handler)
+    for i in range(args.channels):
+        dispatcher.map(f"{base}/{i}", volume_handler)
+    dispatcher.map("/quit", quit_handler)
+    dispatcher.set_default_handler(lambda address, *a: Logger.info(
+        f"[mock-jack-volume] OSC {address} {list(a)}"
+    ))
+
+    server = BlockingOSCUDPServer(("0.0.0.0", args.port), dispatcher)
+    server_ref.append(server)
+
+    def handle_signal(signum, frame):
+        Logger.info(f"[mock-jack-volume] signal {signum}, shutting down")
+        threading.Thread(target=server.shutdown, daemon=True).start()
+
+    signal.signal(signal.SIGTERM, handle_signal)
+    signal.signal(signal.SIGINT, handle_signal)
+
+    Logger.info(f"[mock-jack-volume] listening on port {args.port}")
+    server.serve_forever()
+    Logger.info("[mock-jack-volume] stopped")
+    sys.exit(0)
+
+
+if __name__ == "__main__":
+    main()
diff --git a/src/cuemsengine/scripts/mock_videocomposer.py b/src/cuemsengine/scripts/mock_videocomposer.py
new file mode 100644
index 0000000..adc4748
--- /dev/null
+++ b/src/cuemsengine/scripts/mock_videocomposer.py
@@ -0,0 +1,107 @@
+#!/usr/bin/env python3
+"""
+Mock videocomposer replacement for headless/cloud deployments.
+
+Standalone OSC UDP service (NOT launched by the engine -- run it as a systemd
+service or manually before starting the engine). Listens on the configured
+videocomposer OSC port (default 7000), logs all /videocomposer/* commands,
+and stays alive until /videocomposer/quit or SIGTERM.
+
+Usage:
+    mock-videocomposer [--port PORT] [--host HOST]
+
+Systemd example:
+    [Service]
+    Type=simple
+    ExecStart=/usr/lib/cuems/bin/mock-videocomposer --port 7000
+    Restart=always
+"""
+
+import argparse
+import signal
+import sys
+import threading
+
+from pythonosc.dispatcher import Dispatcher
+from pythonosc.osc_server import BlockingOSCUDPServer
+
+from cuemsutils.log import Logger
+
+
+def main():
+    parser = argparse.ArgumentParser(
+        description="Mock videocomposer for headless deployments",
+        formatter_class=argparse.RawDescriptionHelpFormatter,
+        epilog="""
+Runs as a standalone service (NOT launched by the engine).
+Start before the engine so OSC packets are received.
+        """
+    )
+    parser.add_argument("--port", type=int, default=7000, help="OSC UDP port (default: 7000)")
+    parser.add_argument("--host", type=str, default="0.0.0.0", help="Bind host (default: 0.0.0.0)")
+    args = parser.parse_args()
+
+    Logger.info(f"[mock-videocomposer] starting -- host={args.host} port={args.port}")
+
+    dispatcher = Dispatcher()
+    server_ref = []
+
+    def log_handler(address, *osc_args):
+        Logger.info(f"[mock-videocomposer] OSC {address} {list(osc_args)}")
+
+    def quit_handler(address, *osc_args):
+        Logger.info(f"[mock-videocomposer] OSC {address} -- shutting down")
+        if server_ref:
+            threading.Thread(target=server_ref[0].shutdown, daemon=True).start()
+
+    # Top-level videocomposer commands
+    dispatcher.map("/videocomposer/quit", quit_handler)
+    dispatcher.map("/videocomposer/check", log_handler)
+
+    # Display commands
+    for endpoint in (
+        "/videocomposer/display/list",
+        "/videocomposer/display/modes",
+        "/videocomposer/display/resolution_mode",
+        "/videocomposer/display/mode",
+        "/videocomposer/display/region",
+        "/videocomposer/display/blend",
+        "/videocomposer/display/warp",
+        "/videocomposer/display/save",
+        "/videocomposer/display/load",
+    ):
+        dispatcher.map(endpoint, log_handler)
+
+    # Layer commands (static known paths)
+    for endpoint in (
+        "/videocomposer/layer/load",
+        "/videocomposer/layer/unload",
+    ):
+        dispatcher.map(endpoint, log_handler)
+
+    # Output capture
+    dispatcher.map("/videocomposer/output/capture", log_handler)
+
+    # Catch-all for dynamic per-layer endpoints (/videocomposer/layer/<id>/*)
+    dispatcher.set_default_handler(lambda address, *a: Logger.info(
+        f"[mock-videocomposer] OSC {address} {list(a)}"
+    ))
+
+    server = BlockingOSCUDPServer((args.host, args.port), dispatcher)
+    server_ref.append(server)
+
+    def handle_signal(signum, frame):
+        Logger.info(f"[mock-videocomposer] signal {signum}, shutting down")
+        threading.Thread(target=server.shutdown, daemon=True).start()
+
+    signal.signal(signal.SIGTERM, handle_signal)
+    signal.signal(signal.SIGINT, handle_signal)
+
+    Logger.info(f"[mock-videocomposer] listening on {args.host}:{args.port}")
+    server.serve_forever()
+    Logger.info("[mock-videocomposer] stopped")
+    sys.exit(0)
+
+
+if __name__ == "__main__":
+    main()
diff --git a/src/cuemsengine/scripts/node_engine.py b/src/cuemsengine/scripts/node_engine.py
new file mode 100644
index 0000000..4fb1911
--- /dev/null
+++ b/src/cuemsengine/scripts/node_engine.py
@@ -0,0 +1,61 @@
+#!/usr/bin/env python3
+"""
+CLI entry point for cuems-engine NodeEngine.
+
+Runs in foreground mode, designed for systemd services (Type=simple).
+Systemd handles process supervision, logging (journald), and restart.
+
+Example systemd service:
+    [Service]
+    Type=simple
+    ExecStart=/usr/lib/cuems/bin/node-engine
+    Restart=always
+"""
+
+import signal
+import argparse
+
+from cuemsutils.log import Logger
+from cuemsengine.NodeEngine import NodeEngine
+
+
+def main():
+    """Main entry point - run NodeEngine in foreground"""
+    parser = argparse.ArgumentParser(
+        description='CUEMS Node Engine',
+        formatter_class=argparse.RawDescriptionHelpFormatter,
+        epilog="""
+Runs in foreground mode. Designed for systemd services (Type=simple).
+Use Ctrl+C to stop when running manually.
+        """
+    )
+    parser.parse_args()
+    
+    Logger.info("Starting CUEMS Node Engine")
+    
+    engine = NodeEngine()
+    engine.start()
+    
+    def handle_signal(signum, frame):
+        Logger.info(f"Received signal {signum}, stopping engine...")
+        engine.stop_all()
+        raise SystemExit(0)
+    
+    signal.signal(signal.SIGTERM, handle_signal)
+    signal.signal(signal.SIGINT, handle_signal)
+    
+    try:
+        signal.pause()
+    except KeyboardInterrupt:
+        Logger.info("Received interrupt signal, stopping engine...")
+        engine.stop_all()
+    except SystemExit:
+        pass
+    except Exception as e:
+        Logger.error(f"Engine error: {type(e).__name__}: {e}")
+        engine.stop_all()
+        raise
+
+
+if __name__ == '__main__':
+    main()
diff --git a/src/cuemsengine/scripts/system_ports.py b/src/cuemsengine/scripts/system_ports.py
new file mode 100644
index 0000000..a9c946b
--- /dev/null
+++ b/src/cuemsengine/scripts/system_ports.py
@@ -0,0 +1,46 @@
+#!/usr/bin/env python3
+
+from cuemsengine.tools.system_ports import get_used_ports_with_pid
+
+def main():
+    from sys import argv
+    from json import dumps
+    show_help = "--help" in argv
+    json_output = "--json" in argv
+    user = argv[1] if len(argv) > 1 else None
+    
+    if show_help:
+        print("Port Recovery Utility")
+        print("-" * 30)
+        print(f"Usage: {argv[0]} [user] [--json] [--help]")
+        print("If --json is provided, the output will be in JSON format.")
+        print("If --help is provided, the help message will be displayed.")
+        print("-" * 30)
+        print("Python documentation:")
+        print(get_used_ports_with_pid.__doc__)
+        exit(0)
+
+    try:
+        used_ports = get_used_ports_with_pid(user)
+    except Exception as e:
+        print(f"Error getting used ports: {e}")
+        exit(1)
+    
+    if json_output:
+        print(dumps(used_ports, indent=4, default=str))
+        exit(0)
+    
+    if user:
+        print(f"Getting used ports for user containing: {user}")
+    else:
+        print("Getting all used ports")
+    if used_ports:
+        print(f"Found {len(used_ports)} processes using ports:")
+        for pid, port in sorted(used_ports.items()):
+            print(f"  PID {pid}: Port {port}")
+    else:
+        print("No used ports found.")
+
+if __name__ == "__main__":
+    main()
+
diff --git a/src/cuemsengine/tools/CuemsDeploy.py b/src/cuemsengine/tools/CuemsDeploy.py
new file mode 100644
index 0000000..5535d45
--- /dev/null
+++ b/src/cuemsengine/tools/CuemsDeploy.py
@@ -0,0 +1,118 @@
+import subprocess
+import sys
+import os
+from cuemsutils.log import Logger
+from ..core.BaseEngine import CONTROLLER_HOST
+
+class CuemsDeploy():
+    def __init__(
+            self,
+            library_path = '/opt/cuems_library/',
+            tmp_path = '/tmp/cuems_library/',
+            hostname = CONTROLLER_HOST,
+            log_file = '/tmp/cuems_rsync.log'
+        ):
+        self.library_path = library_path
+        self.tmp_path = tmp_path
+        self.main_hostname = hostname
+        self.log_file = log_file
+        self.errors = []
+        self.encoding = sys.getfilesystemencoding()
+        
+        self.main_ip = self._avahi_resolve(self.main_hostname)
+        self.address = f'rsync://cuems_library_rsync@{self.main_ip}/cuems'
+    
+    def sync_files(self, project, tag, file_names=[]):
+        """Sync the files from the controller to the node"""
+        if tag == 'project' and len(file_names) == 0:
+            file_names = self._project_files(project)
+        log_file = self._deploy_log_path(project, tag)
+        self._create_deploy_log(log_file, file_names)
+
+        synced = self._sync(log_file)
+        if synced:
+            self._reset_deploy_log(log_file)
+        else:
+            Logger.error(f'Failed to sync files from {log_file}')
+            for error in self.errors:
+                Logger.error(error)
+        return synced
+
+
+    def _avahi_resolve(self, hostname):
+        try:
+            result = subprocess.run(
+                ['avahi-resolve-host-name', '-n', hostname],
+                stdout=subprocess.PIPE,
+                stderr=subprocess.PIPE
+            )
+            result.check_returncode()
+            ip = result.stdout.decode(self.encoding).replace(hostname, "").strip()
+            return ip
+        except subprocess.CalledProcessError as e:
+            return False
+
+    def _sync(self, path):
+        #rsync -rv --files-from=/opt/cuems_library/files.tmp --log-file=/tmp/cuems_rsync.log rsync://master.local/cuems /opt/cuems_library/
+        try:
+            result = subprocess.run(
+                [
+                    'rsync',
+                    '-rq',
+                    '--stats',
+                    f'--files-from={path}',
+                    f'--log-file={self.log_file}',
+                    self.address,
+                    self.library_path
+                ],
+                stdout=subprocess.PIPE,
+                stderr=subprocess.PIPE,
+                env=dict(os.environ, RSYNC_PASSWORD="f48t5eL2kLHw2Wfw")
+            )
+            result.check_returncode()
+            self.errors = []
+            return True
+        except subprocess.CalledProcessError as e:            
+            errors_string = e.stderr.decode(self.encoding)
+            
+            #convert lines to list and remove last line (final error menssage)
+            errors_list = errors_string.splitlines()
+            errors_list.pop()
+            self.errors = errors_list
+            return False
+
+    def _deploy_log_path(self, project, tag = 'project'):
+        return os.path.join(
+            self.tmp_path, f'rsync_request_{project}_{tag}.log'
+        )
+
+    def _create_deploy_log(self, log_file, file_names=[]):
+        """Create a log file for a deploy request
+        
+        Args:
+            log_file (str): The path to the log file
+            file_names (list): The list of files to deploy
+
+        Returns:
+            bool: True if the log file was created successfully, False otherwise
+        """
+        try:
+            os.makedirs(os.path.dirname(log_file), exist_ok=True)
+            with open(log_file, 'w') as f:
+                f.writelines(file_names)
+        except Exception as e:
+            Logger.error(f'Exception raised when writing rsync request log file: {e}')
+            return False
+        return True
+
+    def _reset_deploy_log(self, log_file):
+        with open(log_file, 'w') as f:
+            None
+        Logger.info(f'rsync Deploy log file {log_file} emptied')
+
+    def _project_files(self, project):
+        return [
+            '/projects/' + project + '/script.xml\n',
+            '/projects/' + project + '/mappings.xml\n', 
+            '/projects/' + project + '/settings.xml\n'
+        ]
diff --git a/src/cuemsengine/tools/MtcListener.py b/src/cuemsengine/tools/MtcListener.py
new file mode 100755
index 0000000..f47135a
--- /dev/null
+++ b/src/cuemsengine/tools/MtcListener.py
@@ -0,0 +1,153 @@
+#!/usr/bin/env python3
+
+import mido
+import os
+from typing import Callable
+from threading import Thread
+
+from cuemsutils.log import Logger
+from cuemsutils.tools.CTimecode import CTimecode
+
+# HEADLESS/CLOUD: On servers without an ALSA sequencer (/dev/snd/seq absent)
+# switch mido to the JACK-backed rtmidi backend so virtual MIDI ports are
+# still accessible.  On hardware nodes with ALSA this block is a no-op.
+if not os.path.exists('/dev/snd/seq'):
+    mido.set_backend('mido.backends.rtmidi/UNIX_JACK')
+
+class MtcListener(Thread):
+    def __init__(self, step_callback: Callable | None = None, reset_callback: Callable | None = None, port: str | None = None):
+        # self.main_tc = CTimecode('0:0:0:0')
+        self.main_tc = CTimecode()
+        self.main_tc.set_fractional(True)
+
+        self.__quarter_frames = [0,0,0,0,0,0,0,0]
+        self.port = None
+        self.port_name = None
+        self.__open_port(port)
+
+        self.step_callback = step_callback
+        self.reset_callback = reset_callback
+        super().__init__(name = 'mtclistener')
+        self.daemon = True
+
+
+    def timecode(self):
+        return self.main_tc
+
+    def milliseconds(self):
+        return int(self.main_tc.frames * (1000 / float(self.main_tc._framerate))) # type: ignore[attr-defined]
+
+    def __update_timecode(self, timecode):
+        self.main_tc = timecode
+        if (self.main_tc.milliseconds == 0):
+            if self.step_callback != None and self.reset_callback != None:
+                self.reset_callback()
+        if self.step_callback != None:
+            self.step_callback(self.main_tc) 
+
+    def __open_port(self, port):
+        # HEADLESS/CLOUD: get_input_names() can throw when no MIDI subsystem is
+        # present; catch and treat as empty list so the engine keeps running.
+        # port_name is left as None and re-detected later in ControllerEngine.start()
+        # once the timecode sender has created the virtual MIDI port.
+        try:
+            ports = mido.get_input_names() # type: ignore[attr-defined]
+        except Exception as e:
+            Logger.warning(f'Could not list MIDI input ports: {e}')
+            ports = []
+
+        if port is not None:
+            # Exact match first; fall back to substring match because ALSA/JACK
+            # port names include the client name and ID suffix
+            # e.g. "Midi Through Port-0" → "Midi Through:Midi Through Port-0 14:0"
+            if port in ports:
+                self.port_name = port
+            else:
+                matches = [p for p in ports if port in p]
+                if matches:
+                    self.port_name = matches[0]
+                    Logger.info(f'MIDI port "{port}" matched as "{self.port_name}"')
+                else:
+                    Logger.warning(f'MIDI port "{port}" not found, auto-detecting...')
+                    port = None  # fall through to auto-detect
+
+        if port is None:
+            # Prefer ports whose name contains "mtc" (e.g. MtcMaster:MTCPort)
+            mtc_ports = [s for s in ports if "mtc" in s.lower()]
+            if mtc_ports:
+                self.port_name = mtc_ports[-1]
+            elif ports:
+                self.port_name = ports[-1]
+            else:
+                # HEADLESS/CLOUD: no ports yet; caller must retry after the
+                # virtual MIDI sender port has been created.
+                self.port_name = None
+                Logger.warning('No MIDI input ports available')
+        if self.port_name:
+            Logger.info(f'MtcListener will use MIDI port: {self.port_name}')
+
+    def run(self):
+        Logger.debug('Starting MTC listener')
+        self.port = mido.open_input( # type: ignore[attr-defined]
+            self.port_name,
+            callback = self.__handle_message
+        )
+        Logger.info('Listening to MIDI messages on > {} <'.format(self.port_name))
+
+    def stop(self):
+        if self.port is not None:
+            self.port.close()
+
+    def __handle_message(self, message):
+        if message.type == 'quarter_frame':        
+            self.__quarter_frames[message.frame_type] = message.frame_value
+            if (message.frame_type == 3) or (message.frame_type == 7):
+                self.__update_timecode(self.main_tc + 1)
+            #    print('QF+:',self.main_tc)
+            if message.frame_type == 7:
+                tc = self.__mtc_decode_quarter_frames(self.__quarter_frames)
+            #    print('QFC:',tc)
+                self.__update_timecode(tc)
+        elif message.type == 'sysex':
+            # check to see if this is a timecode frame
+            if len(message.data) == 8 and message.data[0:4] == (127,127,1,1):
+                data = message.data[4:]
+                tc = self.__mtc_decode(data)
+                Logger.debug('FF:' + tc.__str__())
+                self.__update_timecode(tc)
+        else:
+            Logger.debug(message)
+            raise(NotImplementedError)
+    
+    def __mtc_decode(self, mtc_bytes):
+        #print(mtc_bytes)
+        rhh, mins, secs, frs = mtc_bytes
+        rateflag = rhh >> 5
+        hrs      = rhh & 31
+        fps = ['24','25','29.97','30'][rateflag]
+        # total_frames = frs + float(fps) * (secs + mins * 60 + hrs * 60 * 60) //  TODO: goes to frame 0 in tc, non existent frame, changed to tc 0:0:0:0 = frame 1
+        return CTimecode('{}:{}:{}:{}'.format(hrs, mins, secs, frs), framerate=fps)
+
+    def __mtc_decode_full_frame(self, full_frame_bytes):
+        mtc_bytes = full_frame_bytes[5:-1]
+        return self.__mtc_decode(mtc_bytes)
+
+    def __mtc_decode_quarter_frames(self, frame_pieces):
+        mtc_bytes = bytearray(4)
+        if len(frame_pieces) < 8:
+            return None
+        for piece in range(8):
+            mtc_index = 3 - piece//2    # quarter frame pieces are in reverse order of mtc_encode
+            this_frame = frame_pieces[piece]
+            if this_frame is bytearray or this_frame is list:
+                this_frame = this_frame[1] # type: ignore[index]
+            # ignore the frame_piece marker bits
+            data = this_frame & 15      # type: ignore[operator]
+            if piece % 2 == 0:
+                # 'even' pieces came from the low nibble
+                # and the first piece is 0, so it's even
+                mtc_bytes[mtc_index] += data
+            else:
+                # 'odd' pieces came from the high nibble
+                mtc_bytes[mtc_index] += data * 16
+        return self.__mtc_decode(mtc_bytes)
diff --git a/src/cuemsengine/tools/PortHandler.py b/src/cuemsengine/tools/PortHandler.py
new file mode 100644
index 0000000..7b2db58
--- /dev/null
+++ b/src/cuemsengine/tools/PortHandler.py
@@ -0,0 +1,214 @@
+from cuemsutils.helpers import CuemsDict
+from cuemsutils.log import Logger
+from random import choice
+from threading import RLock
+
+from .system_ports import get_used_ports_with_pid
+ # olad ports defaults to 9090 9010, raise de initial port to skip these ports
+INITIAL_PORT = 9190
+MAX_PORT = 9999
+
+class PortHandler(object):
+    def __new__(cls):
+        """
+        Singleton class responsible for handling port objects.
+
+        Holds a list of used ports and manages the assignment of new ports.
+        The ports are assigned to a cue
+        Config ports are ports that are ports assigned with None as key
+        Thread-safe: internal state mutations are guarded by a Lock.
+        """
+        if not hasattr(cls, '_instance'):
+            cls._instance = super(PortHandler, cls).__new__(cls)
+            cls._instance._lock = RLock()
+            cls._instance._ports = {None: {}}
+            cls._instance._all_used_ports = []
+            cls._instance._all_available_ports = set(range(INITIAL_PORT, MAX_PORT))
+            cls._instance._random_ports = []
+        return cls._instance
+    
+    def assign_ports(self, names: list[str], cue: CuemsDict = None) -> dict:
+        """Assign free ports to a list of names
+
+        This method is thread-safe and should be the preferred way to assign ports to a list of names for a cue or config.
+        
+        Args:
+            names: The names to assign ports to
+            cue: The cue to assign ports to
+        """
+        with self._lock:
+            new_ports = self.get_free_ports(len(names))
+        out = {k: new_ports[i] for i,k in enumerate(names)}
+        if cue is None:
+            self.add_config_ports(out)
+        else:
+            self.set_ports(cue, out)
+        return out
+
+    def last_port(self) -> int:
+        """
+        Get the last port
+        """
+        with self._lock:
+            return self._ports[-1]
+    
+    def get_ports(self, cue: CuemsDict) -> dict | None:
+        """
+        Get the ports for a cue
+        """
+        with self._lock:
+            return self._ports.get(cue, None)
+    
+    def set_ports(self, cue: CuemsDict, ports: list | dict, check_range: bool = True) -> None:
+        """
+        Set the ports for a cue
+        """
+        previous_ports = self.get_ports(cue)
+        if previous_ports == ports:
+            return
+        ports_list = self.check_ports(ports, check_range)
+        self._all_used_ports.extend(ports_list)
+        if previous_ports is not None:
+            ports.update(previous_ports)
+        self._ports[cue] = ports
+
+    def remove_ports(self, cue: CuemsDict):
+        """
+        Remove the ports for a cue
+        """
+        if self.get_ports(cue) is not None:
+            with self._lock:
+                p = self._ports.pop(cue)
+                new_ports = set(self._all_used_ports) - set(p.values())
+                self._all_used_ports = list(new_ports)
+
+    def get_all_used_ports(self) -> set:
+        """
+        Get the set of all used ports (assigned ports + random ports combined)
+        """
+        with self._lock:
+            Logger.debug(f"All used ports: {self._all_used_ports}")
+            Logger.debug(f'Random ports: {self._random_ports}')
+            return set(self._all_used_ports) | set(self._random_ports)
+
+    def check_ports(self, ports: list | dict, check_range: bool = True) -> list:
+        """
+        Check the ports for a cue and return the list of ports if they are valid
+
+        Args:
+            ports: The ports to check
+            check_range: Whether to check the port range
+
+        Returns:
+            The ports list if they are valid
+
+        Raises:
+            ValueError:
+            - If duplicate ports are found
+            - If ports are already in use
+            - If check_range is True and the port range is invalid
+        """
+        if isinstance(ports, dict):
+            ports = [i for i in ports.values()]
+        if len(ports) > len(set(ports)):
+            raise ValueError(f"Duplicate ports found")
+        all_used_ports = set(self.get_all_used_ports())
+        if all_used_ports & set(ports):
+            raise ValueError(f"Ports already in use: {all_used_ports & set(ports)}")
+        if check_range:
+            self.check_port_range(ports)
+        return ports
+
+    @staticmethod
+    def check_port_range(ports: list) -> None:
+        """
+        Check the port range
+        """
+        for port in ports:
+            if port > MAX_PORT:
+                raise ValueError(f"Port {port} is too high")
+            if port < INITIAL_PORT:
+                raise ValueError(f"Port {port} is too low")
+
+    def get_free_port(self) -> int:
+        """
+        Get a free port
+
+        Thread-safe: internal state mutations are guarded by a Lock.
+        
+        Returns:
+            The free port
+        Raises:
+            ValueError: If no free ports are found
+        """
+        available_ports = self._all_available_ports - set(self.get_all_used_ports())
+        if not available_ports:
+            raise ValueError(f"No free ports found")
+        return choice(list(available_ports))
+
+    def get_free_ports(self, n: int) -> list:
+        """
+        Get n free ports
+        """
+        return [self.get_free_port() for _ in range(n)]
+
+    def find_system_ports(self) -> list:
+        """
+        Find all system ports used on the system
+        """
+        return get_used_ports_with_pid()
+
+    def add_system_ports(self):
+        """
+        Add all system ports to the configuration dictionary
+        """
+        self.add_config_ports(self.find_system_ports())
+    
+    def add_config_ports(self, ports: list | dict):
+        """
+        Add new ports to the configuration dictionary
+        """
+        with self._lock:
+            config_ports = self.get_ports(None)
+            config_ports.update(ports)
+            self.set_ports(None, config_ports, check_range=False)
+
+    def new_random_port(self) -> int:
+        """
+        Get a new random port and store it
+        """
+        port = self.get_free_port()
+        self.store_random_port(port)
+        return port
+
+    def store_random_port(self, port: int):
+        """
+        Store a random port to the random ports set
+        """
+        with self._lock:
+            self._random_ports.append(port)
+
+    def remove_random_port(self, port: int):
+        """
+        Remove a specific port from the random ports list, freeing it for reuse.
+        Called when an OSC client that owned the port is closed.
+        """
+        with self._lock:
+            try:
+                self._random_ports.remove(port)
+            except ValueError:
+                pass
+
+    def clean_random_ports(self):
+        """
+        Clean the random ports set by keeping only ports that are in use by the system
+        """
+        sys_ports = [i for i in self.find_system_ports().values() if i in self._random_ports]
+        with self._lock:
+            self._random_ports = [i for i in self._random_ports if i in sys_ports]
+
+# ---------------------------
+# Singleton
+# ---------------------------
+
+PORT_HANDLER = PortHandler()
diff --git a/src/cuemsengine/tools/__init__.py b/src/cuemsengine/tools/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/src/cuemsengine/tools/system_ports.py b/src/cuemsengine/tools/system_ports.py
new file mode 100644
index 0000000..667fba2
--- /dev/null
+++ b/src/cuemsengine/tools/system_ports.py
@@ -0,0 +1,132 @@
+import subprocess
+import re
+from typing import Dict, Optional
+
+def get_used_ports_with_pid(user: str = None) -> Dict[str, int]:
+    """
+    Recover all used ports using the 'ss' command.
+    Returns a dictionary with PID as key and port as value.
+    
+    Args:
+        user (str): The user to filter ports by
+        If no user is provided, all used ports will be returned.
+
+    Returns:
+        Dict[str, int]: Dictionary mapping PID to port
+        
+    Example:
+        >>> ports = get_used_ports_with_pid()
+        >>> print(ports)
+        {'1234': 8080, '5678': 9090}
+    """
+    try:
+        # Run 'ss -tulnp' to get all listening ports with process info
+        result = subprocess.run(
+            ['ss', '-tulnp'], 
+            capture_output=True, 
+            text=True, 
+            check=True
+        )
+        
+        # Parse the output to extract PIDs and ports
+        pid_port_dict = {}
+        pid = None
+        port = None
+
+        for line in result.stdout.strip().split('\n')[1:]:  # Skip header line
+            if line.strip():
+                if user and user not in line:
+                    continue
+                # Parse the ss output format
+                parts = line.split()
+                for part in parts:
+                    if user and user not in part:
+                        continue
+                    if "pid=" in part:
+                        pid_match = re.search(r'pid=(\d+)', part)
+                        if pid_match:
+                            pid = int(pid_match.group(1))
+                            pid_port_dict[pid] = port
+                    elif ":" in part:
+                        try:
+                            port = int(part.split(':')[-1])
+                        except (ValueError, IndexError):
+                            continue
+                    else:
+                        continue
+                if pid and port:
+                    pid_port_dict[str(pid)] = port
+                pid = None
+                port = None
+                            
+        return pid_port_dict
+        
+    except subprocess.CalledProcessError as e:
+        # Handle case where 'ss' command is not available or fails
+        print(f"Warning: Could not execute 'ss' command: {e}")
+        return {}
+    except Exception as e:
+        print(f"Error getting used ports: {e}")
+        return {}
+
+
+def get_port_by_pid(target_pid: int) -> Optional[int]:
+    """
+    Get the port used by a specific PID.
+    
+    Args:
+        target_pid (int): The process ID to look up
+        
+    Returns:
+        Optional[int]: The port number if found, None otherwise
+        
+    Example:
+        >>> port = get_port_by_pid(1234)
+        >>> print(port)
+        8080
+    """
+    ports = get_used_ports_with_pid()
+    return ports.get(target_pid)
+
+
+def get_pid_by_port(target_port: int) -> Optional[int]:
+    """
+    Get the PID using a specific port.
+    
+    Args:
+        target_port (int): The port number to look up
+        
+    Returns:
+        Optional[int]: The process ID if found, None otherwise
+        
+    Example:
+        >>> pid = get_pid_by_port(8080)
+        >>> print(pid)
+        1234
+    """
+    ports = get_used_ports_with_pid()
+    # Reverse lookup: find PID by port
+    for pid, port in ports.items():
+        if port == target_port:
+            return pid
+    return None
+
+
+def is_port_in_use(port: int) -> bool:
+    """
+    Check if a specific port is in use.
+    
+    Args:
+        port (int): The port number to check
+        
+    Returns:
+        bool: True if port is in use, False otherwise
+        
+    Example:
+        >>> if is_port_in_use(8080):
+        ...     print("Port 8080 is in use")
+        ... else:
+        ...     print("Port 8080 is available")
+    """
+    ports = get_used_ports_with_pid()
+    return port in ports.values()
diff --git a/src/engine.py b/src/engine.py
deleted file mode 100644
index ffbf34f..0000000
--- a/src/engine.py
+++ /dev/null
@@ -1,5 +0,0 @@
-#!/usr/bin/env python3
-
-from cuems.CuemsEngine import CuemsEngine
-
-my_engine = CuemsEngine()
diff --git a/src/test builders parsers XML.py b/src/test builders parsers XML.py
deleted file mode 100644
index c6e23b8..0000000
--- a/src/test builders parsers XML.py	
+++ /dev/null
@@ -1,73 +0,0 @@
-#%%
-from cuems.Cue import Cue
-from cuems.AudioCue import AudioCue
-from cuems.DmxCue import DmxCue
-from cuems.CuemsScript import CuemsScript
-from cuems.CueList import CueList
-from cuems.CTimecode import CTimecode
-from cuems.Settings import Settings
-from cuems.DictParser import CuemsParser
-from cuems.XmlBuilder import XmlBuilder
-from cuems.XmlReaderWriter import XmlReader, XmlWriter
-
-import xml.etree.ElementTree as ET
-
-
-
-c = Cue(33, {'loop': False})
-c2 = Cue(None, { 'loop': False})
-c3 = Cue(5, {'loop': False})
-ac = AudioCue(45, {'loop': True, 'media': 'file.ext', 'master_vol': 66} )
-
-#ac.outputs = {'stereo': 1}
-#d_c = DmxCue(time=23, scene={0:{0:10, 1:50}, 1:{20:23, 21:255}, 2:{5:10, 6:23, 7:125, 8:200}}, init_dict={'loop' : True})
-#d_c.outputs = {'universe0': 3}
-g = Cue(33, {'loop': False})
-
-#custom_cue_list = CueList([c, c2])
-custom_cue_list = CueList( c )
-custom_cue_list.append(c2)
-custom_cue_list.append(ac)
-#custom_cue_list.append(d_c)
-
-
-script = CuemsScript(cuelist=custom_cue_list)
-script.name = "Test Script"
-print('OBJECT:')
-print(script)
-
-xml_data = XmlBuilder(script, {'cms':'http://stagelab.net/cuems'}, '/etc/cuems/script.xsd').build()
-
-
-writer = XmlWriter(schema = '/home/ion/src/cuems/python/cuems-engine/src/cuems/cues.xsd', xmlfile = '/home/ion/src/cuems/python/cuems-engine/src/cuems/cues.xml')
-
-writer.write(xml_data)
-
-reader = XmlReader(schema = '/home/ion/src/cuems/python/cuems-engine/src/cuems/cues.xsd', xmlfile = '/home/ion/src/cuems/python/cuems-engine/src/cuems/cues.xml')
-xml_dict = reader.read()
-print("-------++++++---------")
-print('DICT from XML:')
-print(xml_dict)
-print("-------++++++---------")
-store = CuemsParser(xml_dict).parse()
-print("--------------------")
-print('Re-build object from xml:')
-print(store)
-print("--------------------")
-
-if str(script) == str(store):
-    print('original object and rebuilt object are EQUAL :)')
-else:
-    print('original object and rebuilt object are NOT equal :(')
-
-
-
-print('xxxxxxxxxxxxxxxxxxxx')
-for o in store.cuelist.contents:
-    print(type(o))
-    print(o)
-    if isinstance(o, DmxCue):
-        print('Dmx scene, universe0, channel0, value : {}'.format(o.scene.universe(0).channel(0)))
-
-
-# %%
diff --git a/src/test_xml_files/default_mappings.xml b/src/test_xml_files/default_mappings.xml
deleted file mode 100644
index 25d8c27..0000000
--- a/src/test_xml_files/default_mappings.xml
+++ /dev/null
@@ -1,2 +0,0 @@
-<?xml version='1.0' encoding='utf-8'?>
-<cms:CuemsProjectMappings xmlns:cms="http://stagelab.net/cuems" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://stagelab.net/cuems /etc/cuems/project_mappings.xsd"><audio><outputs><output><name>system:playback_1</name><mappings><mapped_to>system:playback_1</mapped_to></mappings></output><output><name>system:playback_2</name><mappings><mapped_to>system:playback_2</mapped_to></mappings></output></outputs><default_output>system:playback_1</default_output><inputs><input><name>system:capture_1</name><mappings><mapped_to>system:capture_1</mapped_to></mappings></input><input><name>system:capture_2</name><mappings><mapped_to>system:capture_2</mapped_to></mappings></input></inputs><default_input>system:capture_1</default_input></audio><video><outputs><output><name>0</name><mappings><mapped_to>0</mapped_to></mappings></output><output><name>1</name><mappings><mapped_to>1</mapped_to></mappings></output></outputs><default_output>0</default_output></video><dmx /></cms:CuemsProjectMappings>
\ No newline at end of file
diff --git a/src/test_xml_files/project_mappings.xml b/src/test_xml_files/project_mappings.xml
deleted file mode 100644
index de932c7..0000000
--- a/src/test_xml_files/project_mappings.xml
+++ /dev/null
@@ -1,41 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<cms:CuemsProjectMappings xmlns:cms="http://stagelab.net/cuems" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://stagelab.net/cuems ../cuems/project_mappings.xsd">
-    <audio>
-        <outputs>
-            <output>
-                <name>system:playback_1</name>
-                <mappings>
-                    <mapped_to>Out1</mapped_to>
-                </mappings>
-            </output>
-            <output>
-                <name>system:playback_2</name>
-                <mappings>
-                    <mapped_to>Out2</mapped_to>
-                </mappings>
-            </output>
-        </outputs>
-        <default_output>system:playback_1</default_output>
-    </audio>
-    <video>
-        <outputs>
-            <output>
-                <name>0</name>
-                <mappings>
-                    <mapped_to>VideoOut1</mapped_to>
-                    <mapped_to>VideoOut3</mapped_to>
-                </mappings>
-            </output>
-            <output>
-                <name>1</name>
-                <mappings>
-                    <mapped_to>VideoOut2</mapped_to>
-                    <mapped_to>VideoOut4</mapped_to>
-                </mappings>
-            </output>
-        </outputs>
-        <default_output>0</default_output>
-    </video>
-    <dmx>
-    </dmx>
-</cms:CuemsProjectMappings>
\ No newline at end of file
diff --git a/src/test_xml_files/project_settings.xml b/src/test_xml_files/project_settings.xml
deleted file mode 100644
index a1bcf32..0000000
--- a/src/test_xml_files/project_settings.xml
+++ /dev/null
@@ -1,4 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<cms:CuemsProjectSettings xmlns:cms="http://stagelab.net/cuems" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://stagelab.net/cuems ../cuems/project_settings.xsd">
-
-</cms:CuemsProjectSettings>
\ No newline at end of file
diff --git a/src/test_xml_files/settings.xml b/src/test_xml_files/settings.xml
deleted file mode 100644
index ebcb42c..0000000
--- a/src/test_xml_files/settings.xml
+++ /dev/null
@@ -1,33 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<cms:CuemsSettings xmlns:cms="http://stagelab.net/cuems" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://stagelab.net/cuems ../cuems/settings.xsd">
-    <Settings>
-        <library_path>/opt/cuems_library</library_path>
-        <tmp_upload_path>/tmp/cuemsupload</tmp_upload_path>
-        <database_name>project-manager.db</database_name>
-        <node id="0" master="True">
-            <osc_dest_host>localhost</osc_dest_host>
-            <oscquery_port>9090</oscquery_port>
-            <oscquery_out_port>9091</oscquery_out_port>
-            <websocket_port>9092</websocket_port>
-            <load_timeout>15000</load_timeout>
-            <discovery_timeout>15000</discovery_timeout>
-            <mtc_port>Midi Through Port-0</mtc_port>
-            <osc_in_port_base>7000</osc_in_port_base>
-            <videoplayer>
-                <path>/usr/bin/xjadeo</path>
-                <args>--ontop --fullscreen --no-splash --quiet --no-initial-sync --midi-driver alsa-seq --ignore-file-offset</args>
-                <outputs>2</outputs>
-            </videoplayer>
-            <audioplayer>
-                <path>/usr/local/bin/audioplayer-cuems</path>
-                <args></args>
-                <audio_cards>1</audio_cards>
-            </audioplayer>
-            <dmxplayer>
-                <path>/usr/local/bin/dmxplayer-cuems</path>
-                <args></args>
-                <universes>1</universes>
-            </dmxplayer>
-        </node>
-    </Settings>
-</cms:CuemsSettings>
\ No newline at end of file
diff --git a/src/ws-server.py b/src/ws-server.py
deleted file mode 100644
index 82ef536..0000000
--- a/src/ws-server.py
+++ /dev/null
@@ -1,72 +0,0 @@
-
-from cuems.log import logger
-from cuems.cuems_editor.CuemsWsServer import CuemsWsServer
-
-from multiprocessing import Queue
-import time
-import uuid
-import os
-
-engine_queue = Queue()
-editor_queue = Queue()
-
-settings_dict = {}
-settings_dict['session_uuid'] = str(uuid.uuid1())
-settings_dict['library_path'] = '/opt/cuems_library'
-settings_dict['tmp_upload_path'] = '/tmp/cuemsuploads'
-settings_dict['database_name'] = 'project-manager.db'
-
-
-try:
-    if not os.path.exists(settings_dict['tmp_upload_path']):
-        os.mkdir(settings_dict['tmp_upload_path'])
-        logger.info('creating tmp upload folder {}'.format(settings_dict['tmp_upload_path']))
-except Exception as e:
-    print("error: {} {}".format(type(e), e))
-
-def f(text):
-    editor_queue.put(text)
-
-
-server = CuemsWsServer(engine_queue, editor_queue, settings_dict)
-logger.info('start server')
-server.start(9092)
-
-f('playing')
-
-time.sleep(5)
-f('cue 2 50%')
-time.sleep(1)
-f('cue 2 55%')
-
-time.sleep(1)
-f('cue 2 60%')
-f('cue 3 5%')
-f('cue 4 60%')
-time.sleep(1)
-f('cue 5 5%')
-time.sleep(2)
-f('cue 6 60%')
-time.sleep(2)
-f('cue 7 5%')
-time.sleep(1)
-f('cue 8 60%')
-time.sleep(1)
-f('cue 9 5%')
-time.sleep(2)
-f('cue 10 60%')
-time.sleep(2)
-f('cue 11 5%')
-time.sleep(2)
-f('cue 12 60%')
-time.sleep(2)
-f('cue 13 5%')
-time.sleep(2)
-f('cue 14 60%')
-f('cue 15 5%')
-
-
-time.sleep(20)
-f('cue 2 80%')
-
-#server.stop()
diff --git a/tests/PYOSSIA_EVALUATION_RESULTS.md b/tests/PYOSSIA_EVALUATION_RESULTS.md
new file mode 100644
index 0000000..225099e
--- /dev/null
+++ b/tests/PYOSSIA_EVALUATION_RESULTS.md
@@ -0,0 +1,190 @@
+# pyossia Architecture Evaluation Results
+
+**Date:** February 2026  
+**Context:** Evaluated after python-daemon removal
+
+---
+
+## Executive Summary
+
+**DECISION: Hybrid Approach (Keep current architecture with refinements)**
+
+pyossia's **client functionality works reliably**, but its **server and MIDI bindings are broken**. The GMQ failures were NOT caused by python-daemon - they're caused by pyossia's server ports never actually opening.
+
+---
+
+## Test Results
+
+### Test 1: pyossia OSC Client (OSCDevice) ✓ PASSED
+
+```
+Messages sent: 300
+Messages received: 300
+Loss rate: 0.00%
+Duration: 30 seconds
+```
+
+**Finding:** pyossia.OSCDevice reliably sends OSC messages. The `set_value()` method used throughout CUEMS works correctly.
+
+### Test 2: pyossia MidiDevice ✗ NOT USABLE
+
+```
+MidiDevice constructor requires:
+1. ossia_network_context (NOT exposed to Python)
+2. string name
+3. ossia::net::midi::midi_info (handle attribute throws TypeError)
+
+Attempts:
+- MidiDevice() → TypeError
+- MidiDevice("name") → TypeError  
+- MidiDevice("name", "input") → TypeError
+```
+
+**Finding:** MidiDevice class exists but cannot be instantiated from Python. The bindings are incomplete - `ossia_network_context` is not exposed and `MidiInfo.handle` throws "Unregistered type: libremidi::port_information".
+
+### Test 3: pyossia Server (LocalDevice) ✗ BROKEN
+
+```
+LocalDevice.create_osc_server() returns: True
+LocalDevice.create_oscquery_server() returns: True
+
+Actual port binding test:
+- UDP port: NOT bound (socket.bind succeeds)
+- TCP port: NOT listening (connection refused)
+
+Messages received via GMQ: 0
+Messages received via callback: 0
+```
+
+**Finding:** LocalDevice.create_*_server() methods return True but **don't actually open network ports**. No messages can ever be received. This is why GlobalMessageQueue was unreliable - it had nothing to do with python-daemon.
+
+### Additional Finding: GIL/Threading Issues
+
+When using callbacks with certain pyossia operations, Python crashes with:
+```
+pybind11::handle::dec_ref() is being called while the GIL is either not held or invalid
+```
+
+---
+
+## Root Cause Analysis
+
+### What Works
+| Component | Status | Evidence |
+|-----------|--------|----------|
+| pyossia.OSCDevice | ✓ Works | 0% message loss over 30s |
+| pyossia.OSCQueryDevice | ✓ Works | Used for player discovery |
+| set_value() method | ✓ Works | Reliable OSC sending |
+
+### What's Broken
+| Component | Status | Root Cause |
+|-----------|--------|------------|
+| LocalDevice OSC Server | ✗ Broken | Ports never bind |
+| LocalDevice OSCQuery Server | ✗ Broken | Ports never bind |
+| GlobalMessageQueue | ✗ Broken | Server doesn't receive |
+| Callbacks | ✗ Broken | GIL issues, server broken |
+| MidiDevice | ✗ Broken | Incomplete Python bindings |
+
+### Historical "Unreliability" Explained
+
+| Issue | Blamed On | Actual Cause |
+|-------|-----------|--------------|
+| GlobalMessageQueue failures | python-daemon | pyossia server doesn't open ports |
+| Callbacks not firing | python-daemon | pyossia server doesn't receive |
+| WebSocket issues | python-daemon | Possibly daemon, but server also broken |
+| OSC to xjadeo fails | pyossia | Actually works! oscsend was unnecessary |
+
+---
+
+## Decision Matrix Application
+
+Per the plan's decision matrix:
+
+| Condition | Our Result |
+|-----------|------------|
+| pyossia OSC client works | ✓ Yes |
+| pyossia OSC server works | ✗ No |
+| pyossia MIDI works | ✗ No |
+
+**Applicable Row:** "pyossia OSC works, MIDI doesn't"  
+**Decision:** Hybrid: pyossia for OSC client, mido for MIDI, custom router if needed
+
+---
+
+## Recommended Architecture
+
+```
+┌─────────────────────────────────────────────────────────────────┐
+│                    RECOMMENDED (Hybrid)                          │
+├─────────────────────────────────────────────────────────────────┤
+│                                                                  │
+│  Bus Communication:  pynng (NNG)      ← KEEP (proven reliable)  │
+│                                                                  │
+│  OSC SENDING:        pyossia.OSCDevice ← KEEP (reliable)        │
+│    - VideoPlayer                                                │
+│    - AudioPlayer                                                │
+│    - DMXPlayer                                                  │
+│                                                                  │
+│  OSC RECEIVING:      pythonosc        ← USE (if needed)         │
+│    - External control                                           │
+│    - OSC servers                                                │
+│                                                                  │
+│  MIDI:               mido             ← USE (for MIDI-OSC)      │
+│    - MIDI input/output                                          │
+│    - MTC (already using)                                        │
+│                                                                  │
+│  MIDI-OSC Router:    Custom           ← BUILD (if needed)       │
+│    - mido (MIDI side)                                           │
+│    - pyossia.OSCDevice (OSC side)                              │
+│                                                                  │
+└─────────────────────────────────────────────────────────────────┘
+```
+
+---
+
+## Action Items
+
+### Immediate (No Change Needed)
+- [x] Keep NNG for ControllerEngine ↔ NodeEngine communication
+- [x] Keep pyossia.OSCDevice for audio/DMX/video player control
+- [x] Keep mido for MTC
+
+### Potential Cleanup
+- [ ] **Remove oscsend workaround** - pyossia OSCDevice is reliable, oscsend subprocess calls are unnecessary
+- [ ] Remove GlobalMessageQueue code/tests if unused
+
+### Future MIDI-OSC Routing
+If MIDI↔OSC bridging is needed, build a simple custom router:
+
+```python
+# Example MIDI-OSC router (future implementation)
+import mido
+from pyossia.ossia_python import OSCDevice
+
+class MidiOscRouter:
+    def __init__(self, midi_port, osc_host, osc_port):
+        self.midi = mido.open_input(midi_port, callback=self._on_midi)
+        self.osc = OSCDevice("midi_router", osc_host, osc_port, 0)
+        
+    def _on_midi(self, msg):
+        # Route MIDI CC to OSC
+        if msg.type == 'control_change':
+            node = self.osc.root_node.add_node(f'/midi/cc/{msg.control}')
+            param = node.create_parameter(ValueType.Int)
+            param.value = msg.value
+```
+
+---
+
+## Conclusion
+
+**pyossia is valuable but limited in Python:**
+
+1. **Keep using** pyossia.OSCDevice for OSC client operations - it works reliably
+2. **Don't use** pyossia for OSC server features - the server never binds ports
+3. **Don't use** pyossia.MidiDevice - bindings are incomplete
+4. **Don't use** GlobalMessageQueue - it can't receive messages
+
+The oscsend workaround for video can be removed since pyossia OSC sending is reliable. The NNG workaround should stay because pyossia cannot receive OSC reliably.
+
+For future MIDI↔OSC routing, use mido + pyossia.OSCDevice as a simple custom solution.
diff --git a/tests/__init__.py b/tests/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/tests/conftest.py b/tests/conftest.py
new file mode 100644
index 0000000..586550b
--- /dev/null
+++ b/tests/conftest.py
@@ -0,0 +1,215 @@
+import signal
+import sys
+import pytest
+import threading
+import multiprocessing
+import os
+import time
+from pathlib import Path
+
+# Store references to cleanup functions
+_cleanup_functions = []
+
+# WATCHDOG: Force exit if cleanup hangs after test completion
+_test_start_time = time.time()
+_pytest_finished = False
+_cleanup_start_time = None
+
+def _watchdog():
+    """Background thread that force-exits if cleanup hangs"""
+    while True:
+        time.sleep(0.5)
+        
+        # If cleanup started, give it 5 seconds max
+        if _cleanup_start_time:
+            cleanup_time = time.time() - _cleanup_start_time
+            if cleanup_time > 5:
+                print(f"\n⚠️  WATCHDOG: Cleanup took {cleanup_time:.1f}s, force exiting")
+                sys.stdout.flush()
+                sys.stderr.flush()
+                os._exit(0)
+        
+        # Absolute max runtime: 40 seconds (should never hit this)
+        runtime = time.time() - _test_start_time
+        if runtime > 40:
+            print(f"\n⚠️  WATCHDOG: Total runtime {runtime:.0f}s exceeded, force exiting")
+            sys.stdout.flush()
+            sys.stderr.flush()
+            os._exit(1)
+
+_watchdog_thread = threading.Thread(target=_watchdog, daemon=True, name="Watchdog")
+_watchdog_thread.start()
+
+def add_cleanup_function(func):
+    """Register a cleanup function to be called on test interruption"""
+    _cleanup_functions.append(func)
+
+def signal_handler(signum, frame):
+    """Handle SIGINT (Ctrl+C) by calling all registered cleanup functions"""
+    print("\nReceived interrupt signal, cleaning up...")
+    
+    # Call all registered cleanup functions
+    for cleanup_func in _cleanup_functions:
+        try:
+            cleanup_func()
+        except Exception as e:
+            print(f"Error during cleanup: {e}")
+    
+    # Terminate all daemon threads
+    for thread in threading.enumerate():
+        if thread != threading.current_thread() and thread.daemon:
+            print(f"Terminating daemon thread: {thread.name}")
+            # For daemon threads, we can't force terminate them gracefully
+            # but setting daemon=True should make them exit when main exits
+    
+    # Terminate any remaining multiprocessing processes
+    for process in multiprocessing.active_children():
+        print(f"Terminating process: {process.name}")
+        process.terminate()
+        process.join(timeout=1)
+        if process.is_alive():
+            print(f"Force killing process: {process.name}")
+            process.kill()
+    
+    print("Cleanup complete, exiting...")
+    sys.exit(1)
+
+# Register the signal handler for SIGINT (Ctrl+C)
+signal.signal(signal.SIGINT, signal_handler)
+
+@pytest.fixture(scope="session", autouse=True)
+def cleanup_on_exit():
+    """Session-level fixture that ensures cleanup happens even on interruption"""
+    global _pytest_finished, _cleanup_start_time
+    
+    yield
+    
+    # Mark that tests are done, now in cleanup phase
+    _cleanup_start_time = time.time()
+    
+    # Do quick cleanup
+    for cleanup_func in _cleanup_functions:
+        try:
+            cleanup_func()
+        except:
+            pass
+    
+    # Mark finished (watchdog will wait 2 more seconds then kill if needed)
+    _pytest_finished = True
+    
+    # Give threads a moment to finish
+    time.sleep(0.5)
+
+@pytest.fixture
+def engine_cleanup():
+    """Fixture to ensure engine instances are properly cleaned up - AGGRESSIVE MODE"""
+    import threading
+    
+    engines = []
+    
+    def force_kill_threads():
+        """Force kill all daemon threads"""
+        for thread in threading.enumerate():
+            if thread != threading.current_thread() and thread.is_alive():
+                if hasattr(thread, '_stop'):
+                    try:
+                        thread._stop()
+                    except:
+                        pass
+    
+    def aggressive_cleanup(engine):
+        """Aggressively cleanup engine with no mercy"""
+        try:
+            # Stop communications thread first
+            if hasattr(engine, 'communications_thread'):
+                comm = engine.communications_thread
+                comm.stop_requested = True
+                if hasattr(comm, 'event_loop') and comm.event_loop:
+                    try:
+                        comm.event_loop.stop()
+                    except:
+                        pass
+                if hasattr(comm, 'ocsquery_queue_loop') and comm.ocsquery_queue_loop.is_alive():
+                    # Don't wait, just mark as stopped
+                    pass
+            
+            # Stop OSCQuery
+            if hasattr(engine, 'oscquery_server'):
+                try:
+                    engine.oscquery_server.remove_device()
+                except:
+                    pass
+            
+            if hasattr(engine, 'oscquery_client'):
+                try:
+                    del engine.oscquery_client
+                except:
+                    pass
+            
+            # Quick stop calls without waiting
+            if hasattr(engine, 'stop'):
+                try:
+                    engine.stop()
+                except:
+                    pass
+            
+            if hasattr(engine, 'stop_all'):
+                try:
+                    engine.stop_all()
+                except:
+                    pass
+                    
+        except Exception:
+            pass  # Suppress all errors
+    
+    def register_engine(engine):
+        """Register an engine for cleanup"""
+        engines.append(engine)
+        return engine
+    
+    yield register_engine
+    
+    # AGGRESSIVE CLEANUP - don't wait for anything
+    for engine in engines:
+        aggressive_cleanup(engine)
+    
+    # Force kill any remaining threads
+    force_kill_threads()
+
+@pytest.fixture
+def process_cleanup():
+    """Fixture to track and cleanup multiprocessing.Process instances"""
+    processes = []
+    
+    def register_process(process):
+        """Register a process for cleanup"""
+        processes.append(process)
+        
+        def cleanup_process():
+            if process.is_alive():
+                process.terminate()
+                process.join(timeout=2)
+                if process.is_alive():
+                    process.kill()
+        
+        add_cleanup_function(cleanup_process)
+        return process
+    
+    yield register_process
+    
+    # Cleanup all processes at the end of the test
+    for process in processes:
+        try:
+            if process.is_alive():
+                process.terminate()
+                process.join(timeout=2)
+                if process.is_alive():
+                    process.kill()
+        except Exception:
+            pass
+
+# Add project root to Python path (existing functionality)
+project_root = Path(__file__).parent.parent
+src_path = str(project_root / "src")
+if src_path not in sys.path:
+    sys.path.insert(0, src_path) 
diff --git a/tests/fixtures.py b/tests/fixtures.py
new file mode 100644
index 0000000..ab94340
--- /dev/null
+++ b/tests/fixtures.py
@@ -0,0 +1,284 @@
+from pytest import fixture
+from unittest.mock import patch, PropertyMock
+from cuemsengine.core.BaseEngine import MTC_PORT
+from pathlib import Path
+
+@fixture
+def mock_config_manager():
+    with patch('cuemsutils.tools.ConfigManager.ConfigManager') as mock_cm:
+        mock_cm.node_conf = {
+            'uuid': 'test_node',
+            'mtc_port': MTC_PORT
+        }
+        mock_cm.return_value.tmp_path = '/tmp'
+        mock_cm.return_value.library_path = '/library'
+        yield mock_cm
+
+@fixture
+def mock_project_mappings():
+    with patch('cuemsutils.xml.ProjectMappings.get_node') as mock_pm:
+        mock_pm.return_value = mock_pm.get_dict()['nodes'][0]['node']
+        yield mock_pm
+
+@fixture
+def env_config_path():
+    """Mock ConfigManager to use test XML files"""
+    from pathlib import Path
+    from os import environ
+    test_conf_path = Path(__file__).parent / '..' / 'dev' / 'test_xml_files'
+
+    environ['CUEMS_CONF_PATH'] = str(test_conf_path)
+
+@fixture
+def mock_mtc_listener():
+    with patch('cuemsengine.tools.MtcListener.MtcListener') as mock_mtc:
+        yield mock_mtc
+
+@fixture
+def ossia_client_factory():
+    from cuemsengine.osc.OssiaClient import OssiaClient
+    from contextlib import contextmanager
+    
+    @contextmanager
+    def create_client(**kwargs):
+        client = OssiaClient(**kwargs)
+
+        try:
+            yield client
+        finally:
+            del client
+    yield create_client
+
+@fixture
+def ossia_server_factory():
+    from cuemsengine.osc.OssiaServer import OssiaServer
+    from contextlib import contextmanager
+    
+    @contextmanager
+    def create_server(**kwargs):
+        try:
+            server = OssiaServer(**kwargs)
+        except Exception as e:
+            print(e)
+            print(type(e))
+            raise e
+        try:
+            yield server
+        finally:
+            del server
+    yield create_server
+
+
+@fixture
+def mock_config_path():
+    """Mock ConfigManager to use test XML files"""
+    test_conf_path = Path(__file__).parent / '..' / 'dev' / 'test_xml_files'
+    from os import environ
+    environ['CUEMS_CONF_PATH'] = str(test_conf_path)
+
+@fixture
+def mock_avahi_resolve():
+    """Mock avahi-resolve-host-name to return a fixed IP address"""
+    def mock_avahi_resolve(hostname):
+        return 'localhost'
+    with patch('cuemsengine.tools.CuemsDeploy.CuemsDeploy._avahi_resolve', 
+               side_effect=mock_avahi_resolve):
+        yield
+
+@fixture
+def mock_controller_ip():
+    """Mock BaseEngine.get_controller_ip to return localhost"""
+    with patch('cuemsengine.core.BaseEngine.BaseEngine.get_controller_ip', 
+               return_value='localhost'):
+        yield
+
+@fixture
+def suppress_logging(level:str ='info'):
+    """Suppress all logging output to stdout/stderr"""
+    import logging
+    from os import environ
+    level = level.upper()
+    level_value = getattr(logging, level)
+    
+    # Set environment variable to CRITICAL level
+    environ['CUEMS_LOG_LEVEL'] = level
+    
+    # Disable all logging below CRITICAL level
+    logging.disable(level_value - 1)
+    
+    yield
+    
+    # Re-enable logging
+    logging.disable(logging.NOTSET)
+
+@fixture
+def mock_player_subprocess():
+    """Mock player subprocess calls to prevent actual player process startup"""
+    from unittest.mock import MagicMock
+    from cuemsengine.players.PlayerHandler import PLAYER_HANDLER
+    
+    # Complete reset of PLAYER_HANDLER state before test
+    PLAYER_HANDLER.reset_all()
+    
+    # Create a mock that records calls
+    call_records = []
+    
+    def mock_call_subprocess(self, call_args):
+        """Mock implementation that records the call without starting process"""
+        call_records.append({
+            'player': self.__class__.__name__,
+            'args': call_args,
+            'pid': id(self)  # Use object id as fake PID
+        })
+        # Set up mock process
+        self.p = MagicMock()
+        self.p.pid = id(self)
+        self.p.poll = MagicMock(return_value=None)
+        self.pid = id(self)
+        self.status = 'running'
+        self.error = None
+    
+    with patch('cuemsengine.players.Player.Player.call_subprocess', mock_call_subprocess):
+        yield call_records
+    
+    # Complete cleanup after test
+    PLAYER_HANDLER.reset_all()
+
+@fixture
+def mock_player_clients():
+    """Mock PlayerClient creation to record commands without OSC communication"""
+    from unittest.mock import MagicMock, Mock
+    from cuemsengine.players.PlayerHandler import PLAYER_HANDLER
+    
+    # Complete reset before test
+    PLAYER_HANDLER.reset_all()
+    
+    # Storage for all client instances and their commands
+    client_records = {
+        'clients': [],
+        'commands': []
+    }
+    
+    class MockPlayerClientBase:
+        """Base mock for player clients that records set_value calls"""
+        def __init__(self, player_port: int, name: str):
+            self.player_port = player_port
+            self.name = name
+            self.nodes = {}
+            self.endpoints = {}
+            
+            # Record this client creation
+            client_records['clients'].append({
+                'name': name,
+                'port': player_port,
+                'endpoints': list(self.endpoints.keys()) if self.endpoints else []
+            })
+            
+            # Create mock device and nodes
+            self.device = Mock()
+            self.device.root_node = Mock()
+        
+        def set_value(self, node, value):
+            """Record set_value calls"""
+            # Get node path
+            if isinstance(node, str):
+                node_path = node
+            else:
+                node_path = str(node)
+            
+            # Record the command
+            client_records['commands'].append({
+                'client': self.name,
+                'port': self.player_port,
+                'node': node_path,
+                'value': value
+            })
+            
+            # Update mock node value if it exists
+            if node_path in self.nodes:
+                self.nodes[node_path].parameter.value = value
+        
+        def get_node(self, path: str):
+            """Return mock node"""
+            return self.nodes.get(path)
+        
+        def remove_device(self):
+            """Mock cleanup"""
+            pass
+    
+    class MockVideoClient(MockPlayerClientBase):
+        """Mock VideoClient matching its signature"""
+        def __init__(self, player_port: int, name: str = "videoplayer"):
+            super().__init__(player_port, name)
+    
+    class MockAudioClient(MockPlayerClientBase):
+        """Mock AudioClient matching its signature"""
+        def __init__(self, player_port: int, name: str = "audioplayer"):
+            super().__init__(player_port, name)
+    
+    class MockDmxClient(MockPlayerClientBase):
+        """Mock DmxClient matching its signature"""
+        def __init__(self, player_port: int, client_name: str, host: str = "127.0.0.1"):
+            super().__init__(player_port, client_name)
+            self.host = host
+    
+    class MockMixerClient(MockPlayerClientBase):
+        """Mock MixerClient matching its signature"""
+        def __init__(self, player_port: int, channel_number: int, mixer_id: str):
+            super().__init__(player_port, f'mixer-{mixer_id}')
+            self.channel_number = channel_number
+            self.client_name = f'audiomixer-{mixer_id}'
+    
+    # Mock function to prevent Player subprocess from starting
+    def mock_call_subprocess(self, call_args):
+        """Mock implementation that prevents subprocess startup"""
+        # Set up mock process
+        self.p = MagicMock()
+        self.p.pid = id(self)
+        self.p.poll = MagicMock(return_value=None)
+        self.pid = id(self)
+        self.status = 'running'
+        self.error = None
+    
+    # Patch all PlayerClient subclasses AND Player.call_subprocess
+    with patch('cuemsengine.players.VideoPlayer.VideoClient', MockVideoClient), \
+         patch('cuemsengine.players.AudioPlayer.AudioClient', MockAudioClient), \
+         patch('cuemsengine.players.DmxPlayer.DmxClient', MockDmxClient), \
+         patch('cuemsengine.players.AudioMixer.MixerClient', MockMixerClient), \
+         patch('cuemsengine.players.Player.Player.call_subprocess', mock_call_subprocess):
+        yield client_records
+    
+    # Cleanup
+    PLAYER_HANDLER.reset_all()
+
+# @fixture
+# def mock_library_path():
+#     """Mock library path to use test XML files"""
+#     test_library_path = Path(__file__).parent / '..' / 'dev' / 'test_xml_files'
+    
+#     # Patch the library_path attribute after ConfigManager instantiation
+#     with patch('cuemsutils.tools.ConfigManager.ConfigManager.library_path', 
+#                new_callable=PropertyMock, return_value=str(test_library_path)):
+#         yield test_library_path
+
+# Alternative approach using monkeypatch (uncomment if preferred):
+@fixture
+def mock_library_path(monkeypatch):
+    """Mock library path using monkeypatch"""
+    test_library_path = Path(__file__).parent / '..' / 'dev' / 'test_xml_files'
+    
+    def mock_library_path_getter(self):
+        return str(test_library_path)
+    
+    monkeypatch.setattr('cuemsutils.tools.ConfigManager.ConfigManager.library_path', 
+                       property(mock_library_path_getter))
+    yield test_library_path
+
+# Most direct approach - patch the attribute value (uncomment if preferred):
+# @fixture
+# def mock_library_path():
+#     """Mock library path by patching the attribute value directly"""
+#     test_library_path = Path(__file__).parent / '..' / 'dev' / 'test_xml_files'
+    
+#     with patch('cuemsutils.tools.ConfigManager.ConfigManager.library_path'):
+#         yield test_library_path
diff --git a/tests/helpers.py b/tests/helpers.py
new file mode 100644
index 0000000..d6cbb57
--- /dev/null
+++ b/tests/helpers.py
@@ -0,0 +1,27 @@
+import signal
+from contextlib import contextmanager
+
+@contextmanager
+def timeout(seconds):
+    """Timeout context manager
+    
+    Args:
+        seconds: The number of seconds to timeout
+        
+    Raises:
+        TimeoutError: If the timeout is reached
+        
+    Example:
+    >>> with timeout(10):
+    ...     time.sleep(15)
+    ...
+    TimeoutError: Timeout after 10 seconds
+    """
+    def timeout_handler(signum, frame):
+        raise TimeoutError(f"Timeout after {seconds} seconds")
+    signal.signal(signal.SIGALRM, timeout_handler)
+    signal.alarm(seconds)
+    try:
+        yield
+    finally:
+        signal.alarm(0)
diff --git a/tests/pytest_cuems_plugin.py b/tests/pytest_cuems_plugin.py
new file mode 100644
index 0000000..3ea42aa
--- /dev/null
+++ b/tests/pytest_cuems_plugin.py
@@ -0,0 +1,173 @@
+"""
+Pytest plugin for CUEMS engine testing.
+
+This plugin provides automatic cleanup of background processes, threads,
+and other resources when tests are interrupted with Ctrl+C or fail unexpectedly.
+"""
+
+import pytest
+import signal
+import sys
+import threading
+import multiprocessing
+import os
+from typing import List, Callable
+
+# Global registry for cleanup functions
+_active_engines = []
+_active_processes = []
+_active_threads = []
+_cleanup_hooks = []
+
+class CuemsTestCleaner:
+    """Manages cleanup of CUEMS test resources"""
+    
+    @classmethod
+    def register_engine(cls, engine):
+        """Register an engine instance for cleanup"""
+        _active_engines.append(engine)
+        return engine
+    
+    @classmethod
+    def register_process(cls, process):
+        """Register a process for cleanup"""
+        _active_processes.append(process)
+        return process
+    
+    @classmethod
+    def register_thread(cls, thread):
+        """Register a thread for cleanup"""
+        _active_threads.append(thread)
+        return thread
+    
+    @classmethod
+    def add_cleanup_hook(cls, func: Callable):
+        """Add a custom cleanup function"""
+        _cleanup_hooks.append(func)
+    
+    @classmethod
+    def cleanup_all(cls):
+        """Clean up all registered resources"""
+        print("\n=== CUEMS Test Cleanup Started ===")
+        
+        # Call custom cleanup hooks first
+        for hook in _cleanup_hooks:
+            try:
+                hook()
+            except Exception as e:
+                print(f"Error in cleanup hook: {e}")
+        
+        # Stop all engines
+        for engine in _active_engines:
+            try:
+                if hasattr(engine, 'stop_all') and callable(engine.stop_all):
+                    engine.stop_all()
+                elif hasattr(engine, 'stop') and callable(engine.stop):
+                    engine.stop()
+                print(f"Stopped engine: {engine.__class__.__name__}")
+            except Exception as e:
+                print(f"Error stopping engine {engine.__class__.__name__}: {e}")
+        
+        # Terminate all registered processes
+        for process in _active_processes:
+            try:
+                if process.is_alive():
+                    process.terminate()
+                    process.join(timeout=2)
+                    if process.is_alive():
+                        process.kill()
+                    print(f"Terminated process: {process.name}")
+            except Exception as e:
+                print(f"Error terminating process {process.name}: {e}")
+        
+        # Join all registered threads
+        for thread in _active_threads:
+            try:
+                if thread.is_alive():
+                    thread.join(timeout=1)
+                    print(f"Joined thread: {thread.name}")
+            except Exception as e:
+                print(f"Error joining thread {thread.name}: {e}")
+        
+        # Clean up any remaining multiprocessing children
+        for child in multiprocessing.active_children():
+            try:
+                child.terminate()
+                child.join(timeout=1)
+                if child.is_alive():
+                    child.kill()
+                print(f"Cleaned up orphan process: {child.name}")
+            except Exception as e:
+                print(f"Error cleaning orphan process: {e}")
+        
+        # Force cleanup daemon threads
+        for thread in threading.enumerate():
+            if thread != threading.current_thread() and thread.daemon:
+                print(f"Daemon thread still running: {thread.name}")
+        
+        print("=== CUEMS Test Cleanup Complete ===")
+        
+        # Clear registries
+        _active_engines.clear()
+        _active_processes.clear()
+        _active_threads.clear()
+        _cleanup_hooks.clear()
+
+def signal_handler(signum, frame):
+    """Handle SIGINT (Ctrl+C) by cleaning up all resources"""
+    print(f"\nReceived signal {signum}, performing emergency cleanup...")
+    CuemsTestCleaner.cleanup_all()
+    sys.exit(1)
+
+# Register signal handlers
+signal.signal(signal.SIGINT, signal_handler)
+signal.signal(signal.SIGTERM, signal_handler)
+
+@pytest.fixture
+def cuems_cleaner():
+    """Fixture providing access to the CUEMS test cleaner"""
+    return CuemsTestCleaner
+
+@pytest.fixture(scope="session", autouse=True)
+def cuems_session_cleanup():
+    """Session-level automatic cleanup"""
+    yield
+    # Cleanup at end of session
+    CuemsTestCleaner.cleanup_all()
+
+@pytest.fixture(autouse=True)
+def cuems_test_isolation():
+    """Ensure each test starts with a clean state"""
+    # Clear any leftover registrations from previous tests
+    _active_engines.clear()
+    _active_processes.clear() 
+    _active_threads.clear()
+    _cleanup_hooks.clear()
+    
+    yield
+    
+    # Clean up after each test
+    CuemsTestCleaner.cleanup_all()
+
+def pytest_runtest_teardown(item, nextitem):
+    """Called after each test run"""
+    # Additional cleanup after each test
+    CuemsTestCleaner.cleanup_all()
+
+def pytest_keyboard_interrupt(excinfo):
+    """Called when Ctrl+C is pressed during test execution"""
+    print("\nKeyboard interrupt detected, cleaning up...")
+    CuemsTestCleaner.cleanup_all()
+
+def pytest_exception_interact(node, call, report):
+    """Called when test raises an exception"""
+    if report.failed:
+        print(f"\nTest failed: {node.name}, performing cleanup...")
+        CuemsTestCleaner.cleanup_all()
+
+# Make the plugin discoverable
+def pytest_configure(config):
+    """Configure the plugin"""
+    config.addinivalue_line(
+        "markers", "cuems: mark test as using CUEMS engines (automatic cleanup)"
+    ) 
diff --git a/tests/reader.py b/tests/reader.py
new file mode 100644
index 0000000..4b0ea2f
--- /dev/null
+++ b/tests/reader.py
@@ -0,0 +1,25 @@
+import pyossia as ossia
+import time
+
+def iterate_on_children(node):
+
+    for child in node.children():
+        print(str(child))
+        iterate_on_children(child)
+
+
+dev = ossia.OSCQueryDevice("test-remote", "ws://192.168.1.101:6666", 4546)
+dev.update()
+iterate_on_children(dev.root_node)
+
+print(dev)
+globq = ossia.GlobalMessageQueue(dev)
+while(True):
+  res = globq.pop()
+  while(res != None):
+    parameter, value = res
+    print("globq: Got " +  str(parameter.node) + " => " + str(value))
+    res = globq.pop()
+
+  time.sleep(0.1)
+
diff --git a/tests/test_action_cue.py b/tests/test_action_cue.py
new file mode 100644
index 0000000..46dfb70
--- /dev/null
+++ b/tests/test_action_cue.py
@@ -0,0 +1,915 @@
+"""Unit tests for ActionCue execution through ActionHandler.
+
+Tests cover all supported cue-level actions (FR-002a), idempotency (FR-004),
+non-target isolation (FR-006), rapid succession, invalid-action safety (US2),
+hooks, dual registration, result sink (003 US2), and regression guards.
+"""
+
+from __future__ import annotations
+
+import logging
+import time
+from unittest.mock import MagicMock, patch
+
+import pytest
+from cuemsutils.cues import ActionCue, AudioCue
+from cuemsutils.cues.Cue import Cue
+
+# ---------------------------------------------------------------------------
+# Fixtures
+# ---------------------------------------------------------------------------
+
+
+def _make_target(**overrides) -> AudioCue:
+    """Create a minimal target cue suitable for action testing."""
+    target = AudioCue()
+    target.enabled = True
+    target.loaded = True
+    target._stop_requested = False
+    target._go_generation = 0
+    target._local = True
+    target._osc = MagicMock()
+    for k, v in overrides.items():
+        setattr(target, k, v)
+    return target
+
+
+def _make_action_cue(action_type: str, target: Cue) -> ActionCue:
+    """Create an ActionCue wired to a given target."""
+    cue = ActionCue()
+    cue.action_type = action_type
+    cue.action_target = target.id
+    cue._action_target_object = target
+    return cue
+
+
+@pytest.fixture
+def handler():
+    """Return a fresh CueHandler with mocked infrastructure.
+
+    ``ACTION_HANDLER`` is bound to this instance so ``arm`` / ``go`` patches apply.
+    """
+    from cuemsengine.cues.ActionHandler import ACTION_HANDLER
+    from cuemsengine.cues.CueHandler import CUE_HANDLER, CueHandler
+
+    h = object.__new__(CueHandler)
+    h._armed_cues = []
+    h._armed_cues_set = set()
+    h._video_players = {}
+    h._front_video_player = None
+    h._lock = __import__("threading").Lock()
+    h.communications_thread = MagicMock()
+    ACTION_HANDLER.bind_cue_handler(h)
+    ACTION_HANDLER.clear_action_extensions()
+    ACTION_HANDLER.set_emit_enabled(False)
+    yield h
+    ACTION_HANDLER.bind_cue_handler(CUE_HANDLER)
+    ACTION_HANDLER.clear_action_extensions()
+    ACTION_HANDLER.set_emit_enabled(True)
+
+
+@pytest.fixture
+def mtc():
+    return MagicMock()
+
+
+# ---------------------------------------------------------------------------
+# T006: play — target enters running state
+# ---------------------------------------------------------------------------
+
+
+class TestPlayAction:
+    def test_play_starts_target(self, handler, mtc):
+        target = _make_target()
+        cue = _make_action_cue("play", target)
+
+        with patch.object(handler, "go") as mock_go, patch.object(handler, "arm"):
+            result = handler.execute_action(cue, mtc)
+
+        assert result["status"] == "applied"
+        assert result["action_type"] == "play"
+        mock_go.assert_called_once()
+        assert target._stop_requested is False
+
+    def test_play_disabled_target_fails(self, handler, mtc):
+        target = _make_target(enabled=False)
+        cue = _make_action_cue("play", target)
+
+        with patch.object(handler, "go") as mock_go, patch.object(handler, "arm"):
+            result = handler.execute_action(cue, mtc)
+
+        assert result["status"] == "failed"
+        assert "disabled" in result["reason"]
+        mock_go.assert_not_called()
+
+
+# ---------------------------------------------------------------------------
+# T007: pause — target enters paused state
+# ---------------------------------------------------------------------------
+
+
+class TestPauseAction:
+    def test_pause_stops_target(self, handler, mtc):
+        target = _make_target(_stop_requested=False)
+        cue = _make_action_cue("pause", target)
+
+        result = handler.execute_action(cue, mtc)
+
+        assert result["status"] == "applied"
+        assert result["action_type"] == "pause"
+        assert target._stop_requested is True
+
+
+# ---------------------------------------------------------------------------
+# T008: stop — target exits running state
+# ---------------------------------------------------------------------------
+
+
+class TestStopAction:
+    def test_stop_target(self, handler, mtc):
+        target = _make_target(_stop_requested=False, _go_generation=1)
+        cue = _make_action_cue("stop", target)
+
+        with patch.object(handler, "disarm") as mock_disarm:
+            result = handler.execute_action(cue, mtc)
+
+        assert result["status"] == "applied"
+        assert result["action_type"] == "stop"
+        assert target._stop_requested is True
+        assert target._go_generation == 2
+        mock_disarm.assert_called_once_with(target)
+
+
+# ---------------------------------------------------------------------------
+# T009: enable — target becomes enabled
+# ---------------------------------------------------------------------------
+
+
+class TestEnableAction:
+    def test_enable_target(self, handler, mtc):
+        target = _make_target(enabled=False)
+        cue = _make_action_cue("enable", target)
+
+        result = handler.execute_action(cue, mtc)
+
+        assert result["status"] == "applied"
+        assert target.enabled is True
+
+
+# ---------------------------------------------------------------------------
+# T010: disable — target becomes disabled
+# ---------------------------------------------------------------------------
+
+
+class TestDisableAction:
+    def test_disable_target(self, handler, mtc):
+        target = _make_target(enabled=True)
+        cue = _make_action_cue("disable", target)
+
+        result = handler.execute_action(cue, mtc)
+
+        assert result["status"] == "applied"
+        assert target.enabled is False
+
+
+# ---------------------------------------------------------------------------
+# T011: fade_in — target ramps into active state
+# ---------------------------------------------------------------------------
+
+
+class TestFadeInAction:
+    def test_fade_in_starts_target(self, handler, mtc):
+        target = _make_target()
+        cue = _make_action_cue("fade_in", target)
+
+        with patch.object(handler, "go") as mock_go, patch.object(handler, "arm"):
+            result = handler.execute_action(cue, mtc)
+
+        assert result["status"] == "applied"
+        assert result["action_type"] == "fade_in"
+        mock_go.assert_called_once()
+
+
+# ---------------------------------------------------------------------------
+# T012: fade_out — target ramps down and exits active state
+# ---------------------------------------------------------------------------
+
+
+class TestFadeOutAction:
+    def test_fade_out_stops_target(self, handler, mtc):
+        target = _make_target(_stop_requested=False, _go_generation=0)
+        cue = _make_action_cue("fade_out", target)
+
+        result = handler.execute_action(cue, mtc)
+
+        assert result["status"] == "applied"
+        assert result["action_type"] == "fade_out"
+        assert target._stop_requested is True
+        assert target._go_generation == 1
+
+
+# ---------------------------------------------------------------------------
+# T013: go_to — execution pointer navigates to target cue
+# ---------------------------------------------------------------------------
+
+
+class TestGoToAction:
+    def test_go_to_arms_target(self, handler, mtc):
+        target = _make_target(loaded=False)
+        cue = _make_action_cue("go_to", target)
+
+        with patch.object(handler, "arm") as mock_arm:
+            result = handler.execute_action(cue, mtc)
+
+        assert result["status"] == "applied"
+        assert result["action_type"] == "go_to"
+        mock_arm.assert_called_once()
+
+
+# ---------------------------------------------------------------------------
+# T014: idempotent repeat — same action, no harmful side effect
+# ---------------------------------------------------------------------------
+
+
+class TestIdempotentRepeat:
+    def test_enable_already_enabled(self, handler, mtc):
+        target = _make_target(enabled=True)
+        cue = _make_action_cue("enable", target)
+
+        result = handler.execute_action(cue, mtc)
+
+        assert result["status"] == "applied_no_change"
+        assert target.enabled is True
+
+    def test_disable_already_disabled(self, handler, mtc):
+        target = _make_target(enabled=False)
+        cue = _make_action_cue("disable", target)
+
+        result = handler.execute_action(cue, mtc)
+
+        assert result["status"] == "applied_no_change"
+
+    def test_stop_already_stopped(self, handler, mtc):
+        target = _make_target(_stop_requested=True)
+        cue = _make_action_cue("stop", target)
+
+        result = handler.execute_action(cue, mtc)
+
+        assert result["status"] == "applied_no_change"
+
+    def test_pause_already_paused(self, handler, mtc):
+        target = _make_target(_stop_requested=True)
+        cue = _make_action_cue("pause", target)
+
+        result = handler.execute_action(cue, mtc)
+
+        assert result["status"] == "applied_no_change"
+
+
+# ---------------------------------------------------------------------------
+# T015: non-target isolation — unrelated cues remain unchanged
+# ---------------------------------------------------------------------------
+
+
+class TestNonTargetIsolation:
+    def test_unrelated_cue_unchanged(self, handler, mtc):
+        target = _make_target(enabled=True)
+        bystander = _make_target(enabled=True, _stop_requested=False)
+        bystander_snapshot = (
+            bystander.enabled,
+            bystander._stop_requested,
+            getattr(bystander, "_go_generation", 0),
+        )
+
+        cue = _make_action_cue("disable", target)
+        handler.execute_action(cue, mtc)
+
+        assert target.enabled is False
+        assert (
+            bystander.enabled,
+            bystander._stop_requested,
+            getattr(bystander, "_go_generation", 0),
+        ) == bystander_snapshot
+
+
+# ---------------------------------------------------------------------------
+# T016: rapid succession — multiple actions, stable final state
+# ---------------------------------------------------------------------------
+
+
+class TestRapidSuccession:
+    def test_rapid_enable_disable_cycle(self, handler, mtc):
+        target = _make_target(enabled=True)
+
+        for _ in range(50):
+            handler.execute_action(_make_action_cue("disable", target), mtc)
+            handler.execute_action(_make_action_cue("enable", target), mtc)
+
+        assert target.enabled is True
+
+    def test_rapid_stop_play_cycle(self, handler, mtc):
+        target = _make_target()
+
+        with patch.object(handler, "go"), patch.object(handler, "arm"), \
+             patch.object(handler, "disarm"):
+            for _ in range(20):
+                handler.execute_action(_make_action_cue("stop", target), mtc)
+                target._stop_requested = False
+                target.loaded = True
+                handler.execute_action(_make_action_cue("play", target), mtc)
+
+        assert target._stop_requested is False
+
+
+# ===========================================================================
+# US2: Invalid / unsupported actions
+# ===========================================================================
+
+
+class TestUnknownAction:
+    def test_unknown_action_rejected(self, handler, mtc):
+        target = _make_target()
+        cue = _make_action_cue("explode", target)
+
+        result = handler.execute_action(cue, mtc)
+
+        assert result["status"] == "rejected"
+        assert "Unsupported" in result["reason"]
+
+    def test_unknown_action_no_state_change(self, handler, mtc):
+        target = _make_target(enabled=True, _stop_requested=False)
+        snapshot = (
+            target.enabled,
+            target._stop_requested,
+            getattr(target, "_go_generation", 0),
+        )
+
+        cue = _make_action_cue("explode", target)
+        handler.execute_action(cue, mtc)
+
+        assert (
+            target.enabled,
+            target._stop_requested,
+            getattr(target, "_go_generation", 0),
+        ) == snapshot
+
+
+class TestMissingTarget:
+    def test_missing_target_rejected(self, handler, mtc):
+        cue = ActionCue()
+        cue.action_type = "play"
+        cue._action_target_object = None
+
+        result = handler.execute_action(cue, mtc)
+
+        assert result["status"] == "rejected"
+        assert "Missing target" in result["reason"]
+
+
+class TestInactiveProjectTarget:
+    def test_inactive_project_target_rejected(self, handler, mtc):
+        cue = ActionCue()
+        cue.action_type = "play"
+        cue.action_target = "nonexistent-uuid"
+        cue._action_target_object = None
+
+        result = handler.execute_action(cue, mtc)
+
+        assert result["status"] == "rejected"
+
+
+# ===========================================================================
+# US2 (003): hooks, dual registration, result sink (T012–T016a)
+# ===========================================================================
+
+
+class TestActionHookDispatchOrder:
+    def test_dispatch_order_before_default_after_hooks(self, handler, mtc):
+        from cuemsengine.cues.ActionHandler import ACTION_HANDLER
+
+        order = []
+
+        def before(ctx):
+            order.append("before")
+
+        def after(ctx):
+            order.append("after")
+            assert ctx.outcome is not None
+            assert ctx.outcome["status"] == "applied"
+
+        ACTION_HANDLER.register_action_hook(
+            "before_dispatch", before, source="cue_layer"
+        )
+        ACTION_HANDLER.register_action_hook("after_dispatch", after, source="cue_layer")
+        target = _make_target(enabled=False)
+        cue = _make_action_cue("enable", target)
+        handler.execute_action(cue, mtc)
+
+        assert order == ["before", "after"]
+        assert target.enabled is True
+
+    def test_duplicate_hook_registration_last_wins(self, handler, mtc):
+        from cuemsengine.cues.ActionHandler import ACTION_HANDLER
+
+        seen = []
+
+        ACTION_HANDLER.register_action_hook(
+            "before_dispatch",
+            lambda ctx: seen.append("first"),
+            source="cue_layer",
+        )
+        ACTION_HANDLER.register_action_hook(
+            "before_dispatch",
+            lambda ctx: seen.append("second"),
+            source="cue_layer",
+        )
+        target = _make_target(enabled=False)
+        handler.execute_action(_make_action_cue("enable", target), mtc)
+
+        assert seen == ["second"]
+
+    def test_cue_layer_before_node_layer_same_phase(self, handler, mtc):
+        from cuemsengine.cues.ActionHandler import ACTION_HANDLER
+
+        order = []
+
+        ACTION_HANDLER.register_action_hook(
+            "before_dispatch",
+            lambda ctx: order.append("cue"),
+            source="cue_layer",
+        )
+        ACTION_HANDLER.register_action_hook(
+            "before_dispatch",
+            lambda ctx: order.append("node"),
+            source="node_layer",
+        )
+        target = _make_target(enabled=False)
+        handler.execute_action(_make_action_cue("enable", target), mtc)
+
+        assert order == ["cue", "node"]
+
+
+class TestActionResultSink:
+    def test_injectable_sink_records_outcome(self, handler, mtc):
+        from cuemsengine.cues.ActionHandler import ACTION_HANDLER
+
+        recorded = []
+        ACTION_HANDLER.set_emit_enabled(True)
+        ACTION_HANDLER.set_result_sink(lambda o: recorded.append(dict(o)))
+        try:
+            target = _make_target(enabled=False)
+            handler.execute_action(_make_action_cue("enable", target), mtc)
+            assert len(recorded) == 1
+            assert recorded[0]["status"] == "applied"
+            assert recorded[0]["action_type"] == "enable"
+        finally:
+            ACTION_HANDLER.set_result_sink(None)
+            ACTION_HANDLER.set_emit_enabled(False)
+
+    def test_default_path_calls_send_operation_when_sink_unset(self, handler, mtc):
+        from cuemsengine.cues.ActionHandler import ACTION_HANDLER
+
+        ACTION_HANDLER.set_emit_enabled(True)
+        ACTION_HANDLER.set_result_sink(None)
+        handler.communications_thread.send_operation = MagicMock()
+        try:
+            target = _make_target(enabled=False)
+            handler.execute_action(_make_action_cue("enable", target), mtc)
+            handler.communications_thread.send_operation.assert_called()
+            call_kw = handler.communications_thread.send_operation.call_args
+            op = call_kw[0][0]
+            assert op.target == "action_cue_outcome"
+        finally:
+            ACTION_HANDLER.set_emit_enabled(False)
+
+
+class TestActionHookExceptions:
+    def test_before_dispatch_raises_failed_and_isolates_other_cues(self, handler, mtc):
+        from cuemsengine.cues.ActionHandler import ACTION_HANDLER
+
+        def boom(ctx):
+            raise RuntimeError("hook boom")
+
+        ACTION_HANDLER.register_action_hook("before_dispatch", boom, source="cue_layer")
+        target = _make_target(enabled=True)
+        bystander = _make_target(enabled=True, _stop_requested=False)
+        snap = (
+            bystander.enabled,
+            bystander._stop_requested,
+            getattr(bystander, "_go_generation", 0),
+        )
+
+        result = handler.execute_action(_make_action_cue("disable", target), mtc)
+
+        assert result["status"] == "failed"
+        assert target.enabled is True
+        assert (
+            bystander.enabled,
+            bystander._stop_requested,
+            getattr(bystander, "_go_generation", 0),
+        ) == snap
+
+
+class TestActionMidTransitionWithHook:
+    def test_pause_while_already_paused_deterministic_with_hook(self, handler, mtc):
+        from cuemsengine.cues.ActionHandler import ACTION_HANDLER
+
+        order = []
+
+        ACTION_HANDLER.register_action_hook(
+            "before_dispatch",
+            lambda ctx: order.append("hook"),
+            source="cue_layer",
+        )
+        target = _make_target(_stop_requested=True)
+        result = handler.execute_action(_make_action_cue("pause", target), mtc)
+
+        assert result["status"] == "applied_no_change"
+        assert order == ["hook"]
+
+
+# ---------------------------------------------------------------------------
+# Regression: outcome dict shape (003 T010)
+# ---------------------------------------------------------------------------
+
+EXPECTED_ACTION_OUTCOME_KEYS = frozenset(
+    {"status", "action_type", "target_id", "reason"}
+)
+
+
+def test_action_outcome_dict_keys_stable(handler, mtc):
+    target = _make_target()
+    with patch.object(handler, "go"), patch.object(handler, "arm"):
+        result = handler.execute_action(_make_action_cue("play", target), mtc)
+    assert set(result.keys()) == EXPECTED_ACTION_OUTCOME_KEYS
+
+
+def test_action_hot_path_regression_budget(handler, mtc):
+    """SC-009 smoke: many dispatches stay within a loose wall-clock budget."""
+    target = _make_target(enabled=True)
+    t0 = time.perf_counter()
+    for _ in range(100):
+        handler.execute_action(_make_action_cue("enable", target), mtc)
+    assert time.perf_counter() - t0 < 1.0
+
+
+def test_rejected_action_warning_text_unchanged(handler, mtc, caplog):
+    """NFR-003 / SC-008: operator-visible rejection wording for unknown actions."""
+    target = _make_target()
+    with caplog.at_level(logging.WARNING):
+        handler.execute_action(_make_action_cue("explode", target), mtc)
+    assert any("Unsupported action_type" in r.getMessage() for r in caplog.records)
+
+
+# ---------------------------------------------------------------------------
+# T017: CueHandler.go() re-arms unloaded cues (cuelist loop fix)
+# ---------------------------------------------------------------------------
+
+
+def _make_action_target(**overrides) -> ActionCue:
+    """Create a minimal ActionCue target for go() re-arm testing.
+
+    ActionCue is used because arm_cue() is a no-op for it, avoiding
+    heavyweight player/layer setup that requires full infrastructure.
+    """
+    cue = ActionCue()
+    cue.enabled = True
+    cue.loaded = True
+    cue._stop_requested = False
+    cue._go_generation = 0
+    cue._local = True
+    cue.action_type = 'enable'
+    cue._action_target_object = _make_target()
+    for k, v in overrides.items():
+        setattr(cue, k, v)
+    return cue
+
+
+class TestGoRearm:
+    """Verify that go() re-arms a cue that was disarmed after a previous pass."""
+
+    def test_go_rearms_unloaded_cue(self, handler, mtc):
+        """A cue with loaded=False should be re-armed before GO proceeds."""
+        cue = _make_action_target(loaded=False)
+        cue._target_object = None
+        cue.post_go = 'pause'
+
+        thread = handler.go(cue, mtc)
+        thread.join(timeout=2)
+
+        # go() should have re-armed the cue (loaded=True set by arm(init=True))
+        # If go() didn't re-arm, it would have raised an exception
+        assert True  # reaching here means go() succeeded
+
+    def test_go_disabled_returns_none(self, handler, mtc):
+        """A disabled cue should not be executed — go() must return None."""
+        cue = _make_action_target(loaded=False, enabled=False, _local=False)
+        cue._target_object = None
+
+        result = handler.go(cue, mtc)
+        assert result is None
+
+    def test_go_already_loaded_skips_rearm(self, handler, mtc):
+        """A cue with loaded=True should NOT trigger a re-arm."""
+        cue = _make_action_target(loaded=True)
+        cue._target_object = None
+        cue.post_go = 'pause'
+
+        with patch.object(handler, 'arm') as mock_arm:
+            thread = handler.go(cue, mtc)
+            thread.join(timeout=2)
+
+        mock_arm.assert_not_called()
+
+    def test_go_arms_ahead_via_arm_ahead(self, handler, mtc):
+        """go() should call _arm_ahead to arm cues in the target chain."""
+        next_cue = _make_action_target(loaded=False)
+        next_cue._target_object = None
+        next_cue.post_go = 'pause'
+
+        cue = _make_action_target(loaded=True)
+        cue._target_object = next_cue
+        cue.post_go = 'pause'
+
+        with patch.object(handler, '_arm_ahead') as mock_ahead:
+            thread = handler.go(cue, mtc)
+            thread.join(timeout=2)
+
+        mock_ahead.assert_called_once_with(cue)
+
+
+# ---------------------------------------------------------------------------
+# T018: arm() — ActionCue play-target, _loading sentinel, non-local guard
+# ---------------------------------------------------------------------------
+
+
+class TestArmPlayTarget:
+    """Verify ActionCue play-target pre-arming in arm()."""
+
+    def test_arm_actioncue_play_prearms_action_target(self, handler, mtc):
+        """Arming an ActionCue(play) should also arm its _action_target_object."""
+        play_target = _make_action_target(loaded=False)
+        play_target._target_object = None
+        play_target._action_target_object = None
+        play_target.action_type = 'enable'
+
+        cue = ActionCue()
+        cue.enabled = True
+        cue._local = True
+        cue.action_type = 'play'
+        cue._action_target_object = play_target
+        cue._target_object = None
+        cue.post_go = 'pause'
+
+        handler.arm(cue, init=True)
+
+        assert cue.loaded is True
+        assert play_target.loaded is True
+
+    def test_arm_actioncue_stop_does_not_prearm(self, handler, mtc):
+        """Arming an ActionCue(stop) should NOT arm its _action_target_object."""
+        stop_target = _make_action_target(loaded=False)
+        stop_target._target_object = None
+
+        cue = ActionCue()
+        cue.enabled = True
+        cue._local = True
+        cue.action_type = 'stop'
+        cue._action_target_object = stop_target
+        cue._target_object = None
+        cue.post_go = 'pause'
+
+        handler.arm(cue, init=True)
+
+        assert cue.loaded is True
+        assert not getattr(stop_target, 'loaded', False)
+
+    def test_arm_nonlocal_does_not_cascade(self, handler, mtc):
+        """A non-local cue should not trigger recursive arms."""
+        play_target = _make_action_target(loaded=False)
+
+        cue = ActionCue()
+        cue.enabled = True
+        cue._local = False  # non-local
+        cue.action_type = 'play'
+        cue._action_target_object = play_target
+        cue._target_object = None
+
+        handler.arm(cue, init=True)
+
+        # Non-local cue: arm_cue not called, no cascade
+        assert not getattr(cue, 'loaded', False)
+        assert not getattr(play_target, 'loaded', False)
+
+    def test_arm_loading_waits_for_in_progress_arm(self, handler, mtc):
+        """An init=True arm on a cue being armed should wait and succeed."""
+        from threading import Event, Thread
+
+        cue = _make_action_target(loaded=False)
+        event = Event()
+        cue._loading = event  # simulate in-progress arm
+
+        def _finish_arm():
+            time.sleep(0.1)
+            cue.loaded = True
+            event.set()
+
+        t = Thread(target=_finish_arm, daemon=True)
+        t.start()
+
+        result = handler.arm(cue, init=True)
+        t.join(timeout=2)
+
+        assert result is True
+        assert cue.loaded is True
+
+    def test_arm_loading_timeout_returns_false(self, handler, mtc):
+        """An init=True arm should return False if the in-progress arm times out."""
+        from threading import Event
+
+        cue = _make_action_target(loaded=False)
+        cue._loading = Event()  # never signalled
+
+        # Patch timeout to avoid 5s wait in tests
+        with patch.object(cue._loading, 'wait', return_value=False):
+            result = handler.arm(cue, init=True)
+
+        assert result is False
+        assert not getattr(cue, 'loaded', False)
+
+    def test_arm_loading_non_init_returns_false(self, handler, mtc):
+        """A non-init arm on a cue being armed should return False immediately."""
+        from threading import Event
+
+        cue = _make_action_target(loaded=False)
+        cue._loading = Event()  # simulate in-progress arm
+
+        result = handler.arm(cue, init=False)
+
+        assert result is False
+
+    def test_arm_found_uses_set(self, handler, mtc):
+        """arm() should use _armed_cues_set for O(1) membership check."""
+        cue = _make_action_target(loaded=False)
+        cue._target_object = None
+        cue.post_go = 'pause'
+
+        # Add to set but not list — arm should see it as found
+        handler._armed_cues_set.add(cue.id)
+
+        handler.arm(cue, init=True)
+        assert cue.loaded is True
+        # Should not be added to list again (already in set)
+        assert handler._armed_cues.count(cue) == 0
+
+
+# ---------------------------------------------------------------------------
+# T019: _effective_duration_ms
+# ---------------------------------------------------------------------------
+
+
+class TestEffectiveDuration:
+
+    def test_video_cue_with_media(self):
+        from cuemsengine.cues.CueHandler import CueHandler
+        from cuemsutils.cues.MediaCue import Media
+        cue = _make_target()
+        cue.media = Media({'file_name': 'test.wav', 'duration': '00:00:05.000'})
+        # prewait=0, postwait=0, media=5s
+        duration = CueHandler._effective_duration_ms(cue)
+        assert duration >= 4900  # ~5000ms, allow rounding
+
+    def test_action_cue_zero_duration(self):
+        from cuemsengine.cues.CueHandler import CueHandler
+        cue = ActionCue()
+        cue.action_type = 'play'
+        duration = CueHandler._effective_duration_ms(cue)
+        assert duration == 0
+
+    def test_action_cue_with_prewait(self):
+        from cuemsengine.cues.CueHandler import CueHandler
+        from cuemsutils.tools.CTimecode import CTimecode
+        cue = ActionCue()
+        cue.action_type = 'play'
+        cue.prewait = CTimecode(start_seconds=2.0)
+        duration = CueHandler._effective_duration_ms(cue)
+        assert duration >= 1900  # ~2000ms
+
+    def test_dmx_cue_fadein_seconds_to_ms(self):
+        from cuemsengine.cues.CueHandler import CueHandler
+        from cuemsutils.cues import DmxCue
+        cue = DmxCue()
+        cue.fadein_time = 3.0  # 3 seconds
+        cue.fadeout_time = 0.0
+        duration = CueHandler._effective_duration_ms(cue)
+        assert duration >= 2900  # 3000ms
+
+
+# ---------------------------------------------------------------------------
+# T020: _arm_ahead
+# ---------------------------------------------------------------------------
+
+
+class TestArmAhead:
+
+    def _make_chain(self, durations_ms, handler):
+        """Build a chain of ActionCues with given effective durations via prewait."""
+        from cuemsutils.tools.CTimecode import CTimecode
+        cues = []
+        for d in durations_ms:
+            cue = ActionCue()
+            cue.enabled = True
+            cue._local = True
+            cue.action_type = 'enable'
+            cue._action_target_object = _make_target()
+            cue._target_object = None
+            cue.post_go = 'go_at_end'
+            if d > 0:
+                cue.prewait = CTimecode(start_seconds=d / 1000.0)
+            cues.append(cue)
+        # Wire chain
+        for i in range(len(cues) - 1):
+            cues[i]._target_object = cues[i + 1]
+        return cues
+
+    def test_arm_ahead_skips_short_cues(self, handler, mtc):
+        """Short cues are armed but don't count toward the 2-cue limit."""
+        # 0ms, 0ms, 0ms, 2000ms, 2000ms
+        cues = self._make_chain([0, 0, 0, 2000, 2000], handler)
+        start = _make_action_target()
+        start._target_object = cues[0]
+
+        handler._arm_ahead(start)
+
+        # All 5 should be armed (3 short + 2 counted)
+        for cue in cues:
+            assert getattr(cue, 'loaded', False), f'Cue should be loaded'
+
+    def test_arm_ahead_stops_at_two_real_cues(self, handler, mtc):
+        """Stops after finding 2 cues with duration >= threshold."""
+        # 2000ms, 2000ms, 2000ms
+        cues = self._make_chain([2000, 2000, 2000], handler)
+        start = _make_action_target()
+        start._target_object = cues[0]
+
+        handler._arm_ahead(start)
+
+        assert getattr(cues[0], 'loaded', False)
+        assert getattr(cues[1], 'loaded', False)
+        assert not getattr(cues[2], 'loaded', False)  # not reached
+
+    def test_arm_ahead_hard_cap(self, handler, mtc, caplog):
+        """Stops at MAX_LOOKAHEAD_DEPTH and logs warning."""
+        # 20 zero-duration cues
+        cues = self._make_chain([0] * 20, handler)
+        start = _make_action_target()
+        start._target_object = cues[0]
+
+        with caplog.at_level(logging.WARNING):
+            handler._arm_ahead(start)
+
+        # Only first MAX_LOOKAHEAD_DEPTH cues armed
+        depth = handler._MAX_LOOKAHEAD_DEPTH
+        for i in range(depth):
+            assert getattr(cues[i], 'loaded', False)
+        assert not getattr(cues[depth], 'loaded', False)
+
+        # Warning logged
+        assert any('depth limit' in r.getMessage() for r in caplog.records)
+
+    def test_arm_ahead_skips_cuelist(self, handler, mtc):
+        """CueList targets in the chain are skipped."""
+        from cuemsutils.cues import CueList
+        cue_after = _make_action_target(loaded=False)
+        cue_after._target_object = None
+        cue_after.prewait = __import__('cuemsutils.tools.CTimecode', fromlist=['CTimecode']).CTimecode(start_seconds=2.0)
+
+        cuelist = CueList()
+        cuelist._target_object = cue_after
+
+        start = _make_action_target()
+        start._target_object = cuelist
+
+        handler._arm_ahead(start)
+
+        # CueList skipped, cue_after armed
+        assert not getattr(cuelist, 'loaded', False)
+        assert getattr(cue_after, 'loaded', False)
+
+    def test_arm_ahead_uninit_loaded(self, handler, mtc):
+        """A cue without 'loaded' attribute should be armed (getattr fallback)."""
+        cue = ActionCue()
+        cue.enabled = True
+        cue._local = True
+        cue.action_type = 'enable'
+        cue._action_target_object = _make_target()
+        cue._target_object = None
+        cue.post_go = 'pause'
+        # Don't set 'loaded' at all
+
+        start = _make_action_target()
+        start._target_object = cue
+
+        handler._arm_ahead(start)
+
+        assert getattr(cue, 'loaded', False)
diff --git a/tests/test_comms_nodehub.py b/tests/test_comms_nodehub.py
new file mode 100644
index 0000000..1a0d493
--- /dev/null
+++ b/tests/test_comms_nodehub.py
@@ -0,0 +1,517 @@
+"""Test NodeOperation communication between NodeEngine and ControllerEngine.
+
+This test documents the expected flow of NodeOperation messages via NngHub
+when cues are armed/disarmed on NodeEngine.
+"""
+import asyncio
+import pytest
+from unittest.mock import Mock, MagicMock
+
+from cuemsengine.comms.NodesHub import ActionType, OperationType, NodeOperation
+
+
+def test_player_operation_structure():
+    """Test NodeOperation dataclass structure and creation."""
+    # ARRANGE
+    player_id = "audioplayer-12345678-aaaa-4aaa-aaaa-123456789001"
+    sender_id = "0367f391-ebf4-48b2-9f26-000000000001"
+    node_data = {
+        'name': 'audioplayer',
+        'path': '/audioplayer',
+        'children': []
+    }
+    
+    # ACT - Create ADD operation
+    add_operation = NodeOperation(
+        type=OperationType.PLAYER,
+        action=ActionType.ADD,
+        target=player_id,
+        data=node_data,
+        sender=sender_id
+    )
+    
+    # ASSERT - Verify structure
+    assert add_operation.action == ActionType.ADD
+    assert add_operation.target == player_id
+    assert add_operation.data == node_data
+    assert add_operation.sender == sender_id
+    
+    # Test string representation
+    str_repr = str(add_operation)
+    assert sender_id in str_repr
+    assert 'add' in str_repr.lower()
+    assert player_id in str_repr
+    
+    # ACT - Recreate as REMOVE operation
+    remove_operation = add_operation.duplicate()
+    remove_operation.action = ActionType.REMOVE
+    remove_operation.data = None
+
+    # ASSERT - REMOVE should not have node_data
+    assert remove_operation.action == ActionType.REMOVE
+    assert remove_operation.data is None
+
+def test_action_type_enum():
+    """Test ActionType enum values."""
+    # ASSERT - Verify enum values
+    assert ActionType.ADD.value == "add"
+    assert ActionType.REMOVE.value == "remove"
+    assert ActionType.UPDATE.value == "update"
+    
+    # Test enum conversion
+    assert ActionType("add") == ActionType.ADD
+    assert ActionType("remove") == ActionType.REMOVE
+    assert ActionType("update") == ActionType.UPDATE
+
+def test_nodes_hub_callback_signature():
+    """Test that NodesHub callback has correct signature."""
+    from cuemsengine.comms.NodesHub import NodesHub
+    
+    # ARRANGE - Create mock callback
+    received_operations = []
+    
+    def mock_callback(operation: NodeOperation):
+        """Expected callback signature for set_player_received_callback"""
+        received_operations.append(operation)
+    
+    # ACT - Verify callback can be set
+    hub = NodesHub("tcp://localhost:5555", mode=NodesHub.Mode.LISTENER)
+    hub.set_receive_callbacks({OperationType.PLAYER: mock_callback})
+    
+    # ASSERT - Verify callback was registered
+    assert hub._on_operation_received is not None
+    assert hub._on_operation_received[OperationType.PLAYER] == mock_callback
+    
+    # Test callback works with NodeOperation
+    test_op = NodeOperation(
+        type=OperationType.PLAYER,
+        action=ActionType.ADD,
+        sender="test-node",
+        target="test-player",
+        data={'test': 'data'}
+    )
+    
+    mock_callback(test_op)
+    assert len(received_operations) == 1
+    assert received_operations[0] == test_op
+
+
+def test_node_operation_serialization_format():
+    """Test NodeOperation serialization via __dict__ method."""
+    # ARRANGE
+    player_id = "audioplayer-12345678aaaa4aaaaaa123456789001"
+    sender_id = "node-001"
+    node_data = {
+        "name": "audioplayer",
+        "path": "/audioplayer",
+        "children": []
+    }
+    
+    # ACT - Create NodeOperation and get dict representation
+    operation = NodeOperation(
+        type=OperationType.PLAYER,
+        action=ActionType.ADD,
+        sender=sender_id,
+        target=player_id,
+        data=node_data
+    )
+    serialized = operation.__dict__()
+    
+    # ASSERT - Verify dict structure and values
+    assert serialized == {
+        "type": "player",
+        "action": "add",
+        "sender": sender_id,
+        "target": player_id,
+        "data": node_data
+    }
+    
+    # ASSERT - Verify __str__ representation
+    str_repr = str(operation)
+    assert str_repr == f"NodeOperation by {sender_id}: add on player {player_id} (with data)"
+    
+    # Test REMOVE operation serialization
+    remove_op = operation.duplicate()
+    remove_op.action = ActionType.REMOVE
+    remove_op.data = None
+    
+    remove_serialized = remove_op.__dict__()
+    assert remove_serialized["action"] == "remove"
+    assert remove_serialized["data"] is None
+    
+    # ASSERT - Verify __str__ for REMOVE (without data)
+    assert str(remove_op) == f"NodeOperation by {sender_id}: remove on player {player_id} (without data)"
+
+class TestNodesHubIntegration:
+    """Integration tests for NodesHub NNG communication."""
+    
+    def test_send_operation_from_node_to_controller(self):
+        """Test that NodeOperation can be sent from DIALER to LISTENER."""
+        from cuemsengine.comms.NodesHub import NodesHub
+        
+        NNG_ADDRESS = "tcp://127.0.0.1:15551"
+        received_operations = []
+        
+        async def run_test():
+            # ARRANGE - Create listener (controller) and dialer (node) hubs
+            listener_hub = NodesHub(NNG_ADDRESS, mode=NodesHub.Mode.LISTENER)
+            dialer_hub = NodesHub(NNG_ADDRESS, mode=NodesHub.Mode.DIALER)
+            
+            def on_player_received(operation: NodeOperation):
+                received_operations.append(operation)
+            
+            listener_hub.set_receive_callbacks({OperationType.PLAYER: on_player_received})
+            
+            # ACT - Start hubs (transport + message receiver)
+            listener_task = asyncio.create_task(listener_hub.start())
+            receiver_task = asyncio.create_task(listener_hub.start_message_receiver())
+            await asyncio.sleep(0.1)  # Allow listener to bind
+            
+            dialer_task = asyncio.create_task(dialer_hub.start())
+            await asyncio.sleep(0.1)  # Allow dialer to connect
+            
+            operation = NodeOperation(
+                type=OperationType.PLAYER,
+                action=ActionType.ADD,
+                sender="test-node-001",
+                target="audioplayer-12345",
+                data={"name": "audioplayer", "path": "/audioplayer"}
+            )
+            await dialer_hub.send_operation(operation)
+            
+            # Wait for message to be received and processed
+            await asyncio.sleep(0.3)
+            
+            # Cleanup
+            for task in [listener_task, dialer_task, receiver_task]:
+                task.cancel()
+                try:
+                    await task
+                except asyncio.CancelledError:
+                    pass
+        
+        asyncio.run(run_test())
+        
+        # ASSERT - Verify operation was received
+        assert len(received_operations) == 1
+        received = received_operations[0]
+        assert received.type == OperationType.PLAYER
+        assert received.action == ActionType.ADD
+        assert received.target == "audioplayer-12345"
+        assert received.data == {"name": "audioplayer", "path": "/audioplayer"}
+    
+    def test_send_multiple_operations(self):
+        """Test sending multiple operations in sequence."""
+        from cuemsengine.comms.NodesHub import NodesHub
+        
+        NNG_ADDRESS = "tcp://127.0.0.1:15552"
+        received_operations = []
+        
+        async def run_test():
+            # ARRANGE
+            listener_hub = NodesHub(NNG_ADDRESS, mode=NodesHub.Mode.LISTENER)
+            dialer_hub = NodesHub(NNG_ADDRESS, mode=NodesHub.Mode.DIALER)
+            
+            def on_operation_received(operation: NodeOperation):
+                received_operations.append(operation)
+            
+            listener_hub.set_receive_callbacks({
+                OperationType.PLAYER: on_operation_received,
+                OperationType.CUE: on_operation_received
+            })
+            
+            # Start hubs (transport + message receiver)
+            listener_task = asyncio.create_task(listener_hub.start())
+            receiver_task = asyncio.create_task(listener_hub.start_message_receiver())
+            await asyncio.sleep(0.1)
+            dialer_task = asyncio.create_task(dialer_hub.start())
+            await asyncio.sleep(0.1)
+            
+            # ACT - Send multiple operations
+            operations = [
+                NodeOperation(
+                    type=OperationType.PLAYER,
+                    action=ActionType.ADD,
+                    sender="node-001",
+                    target="player-1",
+                    data={"index": 1}
+                ),
+                NodeOperation(
+                    type=OperationType.PLAYER,
+                    action=ActionType.UPDATE,
+                    sender="node-001",
+                    target="player-1",
+                    data={"index": 1, "updated": True}
+                ),
+                NodeOperation(
+                    type=OperationType.PLAYER,
+                    action=ActionType.REMOVE,
+                    sender="node-001",
+                    target="player-1",
+                    data=None
+                ),
+            ]
+            
+            for op in operations:
+                await dialer_hub.send_operation(op)
+                await asyncio.sleep(0.05)
+            
+            await asyncio.sleep(0.3)
+            
+            # Cleanup
+            for task in [listener_task, dialer_task, receiver_task]:
+                task.cancel()
+                try:
+                    await task
+                except asyncio.CancelledError:
+                    pass
+        
+        asyncio.run(run_test())
+        
+        # ASSERT - Verify all operations received in order
+        assert len(received_operations) == 3
+        assert received_operations[0].action == ActionType.ADD
+        assert received_operations[1].action == ActionType.UPDATE
+        assert received_operations[2].action == ActionType.REMOVE
+    
+    def test_operation_dict_serialization_roundtrip(self):
+        """Test that operation serialization/deserialization preserves data integrity."""
+        from cuemsengine.comms.NodesHub import NodesHub
+        
+        NNG_ADDRESS = "tcp://127.0.0.1:15553"
+        received_operations = []
+        
+        async def run_test():
+            # ARRANGE
+            listener_hub = NodesHub(NNG_ADDRESS, mode=NodesHub.Mode.LISTENER)
+            dialer_hub = NodesHub(NNG_ADDRESS, mode=NodesHub.Mode.DIALER)
+            
+            def on_operation_received(operation: NodeOperation):
+                received_operations.append(operation)
+            
+            listener_hub.set_receive_callbacks({OperationType.PLAYER: on_operation_received})
+            
+            # Start hubs (transport + message receiver)
+            listener_task = asyncio.create_task(listener_hub.start())
+            receiver_task = asyncio.create_task(listener_hub.start_message_receiver())
+            await asyncio.sleep(0.1)
+            dialer_task = asyncio.create_task(dialer_hub.start())
+            await asyncio.sleep(0.1)
+            
+            # ACT - Send operation with complex nested data
+            complex_data = {
+                "name": "videoplayer",
+                "path": "/videoplayer",
+                "children": [
+                    {"name": "play", "type": "bool", "value": False},
+                    {"name": "volume", "type": "float", "value": 0.75},
+                ],
+                "metadata": {"created": "2025-01-01", "version": 2}
+            }
+            
+            operation = NodeOperation(
+                type=OperationType.PLAYER,
+                action=ActionType.ADD,
+                sender="node-complex",
+                target="videoplayer-xyz",
+                data=complex_data
+            )
+            
+            await dialer_hub.send_operation(operation)
+            await asyncio.sleep(0.3)
+            
+            # Cleanup
+            for task in [listener_task, dialer_task, receiver_task]:
+                task.cancel()
+                try:
+                    await task
+                except asyncio.CancelledError:
+                    pass
+        
+        asyncio.run(run_test())
+        
+        # ASSERT - Verify data integrity after roundtrip
+        assert len(received_operations) == 1
+        received = received_operations[0]
+        assert received.data["name"] == "videoplayer"
+        assert received.data["children"][0]["name"] == "play"
+        assert received.data["metadata"]["version"] == 2
+
+
+class TestCommunicationsIntegration:
+    """Integration tests using ControllerCommunications and NodeCommunications."""
+    
+    def test_node_to_controller_via_communications_threads(self):
+        """Test NodeOperation sent via NodeCommunications reaches ControllerCommunications."""
+        from unittest.mock import patch, MagicMock, AsyncMock
+        from cuemsengine.comms.ControllerCommunications import ControllerCommunications
+        from cuemsengine.comms.NodeCommunications import NodeCommunications
+        import time
+        
+        NNG_ADDRESS = "tcp://127.0.0.1:15561"
+        received_operations = []
+        
+        def player_callback(operation: NodeOperation):
+            received_operations.append(operation)
+        
+        def editor_callback(msg, ctx):
+            pass  # Stub
+        
+        # Mock IPC communicators with async methods
+        mock_comm = MagicMock()
+        mock_comm.responder_connect = AsyncMock()
+        mock_comm.responder_get_request = AsyncMock(side_effect=asyncio.CancelledError)
+        
+        with patch('cuemsengine.comms.ControllerCommunications.Communicator', return_value=mock_comm):
+            # ARRANGE - Create communications threads
+            controller = ControllerCommunications(
+                NNG_ADDRESS,
+                editor_callback=editor_callback,
+                player_operation_callback=player_callback
+            )
+            node = NodeCommunications(NNG_ADDRESS, node_id="test-node-001")
+            
+            # Start controller thread (which starts the NNG listener)
+            controller.start()
+            time.sleep(0.3)  # Allow controller to bind
+            
+            # Start node thread (which starts the NNG dialer)
+            node.start()
+            time.sleep(0.3)  # Allow node to connect
+            
+            # ACT - Send operation from node
+            node.add_player("audioplayer-xyz", {"name": "audioplayer", "volume": 0.8})
+            
+            # Wait for message to be received
+            time.sleep(0.5)
+            
+            # Cleanup
+            node.stop()
+            controller.stop()
+            time.sleep(0.2)
+        
+        # ASSERT
+        assert len(received_operations) == 1
+        op = received_operations[0]
+        assert op.type == OperationType.PLAYER
+        assert op.action == ActionType.ADD
+        assert op.target == "audioplayer-xyz"
+        assert op.sender == "test-node-001"
+        assert op.data["name"] == "audioplayer"
+    
+    def test_multiple_operations_via_communications(self):
+        """Test multiple operations flow correctly through communications layer."""
+        from unittest.mock import patch, MagicMock, AsyncMock
+        from cuemsengine.comms.ControllerCommunications import ControllerCommunications
+        from cuemsengine.comms.NodeCommunications import NodeCommunications
+        import time
+        
+        NNG_ADDRESS = "tcp://127.0.0.1:15562"
+        received_operations = []
+        
+        def player_callback(operation: NodeOperation):
+            received_operations.append(operation)
+        
+        def editor_callback(msg, ctx):
+            pass
+        
+        mock_comm = MagicMock()
+        mock_comm.responder_connect = AsyncMock()
+        mock_comm.responder_get_request = AsyncMock(side_effect=asyncio.CancelledError)
+        
+        with patch('cuemsengine.comms.ControllerCommunications.Communicator', return_value=mock_comm):
+            controller = ControllerCommunications(
+                NNG_ADDRESS,
+                editor_callback=editor_callback,
+                player_operation_callback=player_callback
+            )
+            node = NodeCommunications(NNG_ADDRESS, node_id="node-multi")
+            
+            controller.start()
+            time.sleep(0.3)
+            node.start()
+            time.sleep(0.3)
+            
+            # ACT - Send multiple operations
+            node.add_player("player-1", {"index": 1})
+            time.sleep(0.1)
+            node.add_player("player-2", {"index": 2})
+            time.sleep(0.1)
+            node.remove_player("player-1")
+            
+            time.sleep(0.5)
+            
+            node.stop()
+            controller.stop()
+            time.sleep(0.2)
+        
+        # ASSERT
+        assert len(received_operations) == 3
+        assert received_operations[0].action == ActionType.ADD
+        assert received_operations[0].target == "player-1"
+        assert received_operations[1].action == ActionType.ADD
+        assert received_operations[1].target == "player-2"
+        assert received_operations[2].action == ActionType.REMOVE
+        assert received_operations[2].target == "player-1"
+    
+    def test_send_custom_operation_via_node_communications(self):
+        """Test sending custom NodeOperation via NodeCommunications.send_operation()."""
+        from unittest.mock import patch, MagicMock, AsyncMock
+        from cuemsengine.comms.ControllerCommunications import ControllerCommunications
+        from cuemsengine.comms.NodeCommunications import NodeCommunications
+        import time
+        
+        NNG_ADDRESS = "tcp://127.0.0.1:15563"
+        received_operations = []
+        
+        def player_callback(operation: NodeOperation):
+            received_operations.append(operation)
+        
+        def editor_callback(msg, ctx):
+            pass
+        
+        mock_comm = MagicMock()
+        mock_comm.responder_connect = AsyncMock()
+        mock_comm.responder_get_request = AsyncMock(side_effect=asyncio.CancelledError)
+        
+        with patch('cuemsengine.comms.ControllerCommunications.Communicator', return_value=mock_comm):
+            controller = ControllerCommunications(
+                NNG_ADDRESS,
+                editor_callback=editor_callback,
+                player_operation_callback=player_callback
+            )
+            node = NodeCommunications(NNG_ADDRESS, node_id="node-custom")
+            
+            controller.start()
+            time.sleep(0.3)
+            node.start()
+            time.sleep(0.3)
+            
+            # ACT - Send custom operation directly
+            custom_op = NodeOperation(
+                type=OperationType.PLAYER,
+                action=ActionType.UPDATE,
+                sender="node-custom",
+                target="videoplayer-001",
+                data={
+                    "name": "videoplayer",
+                    "state": "playing",
+                    "position": 12345,
+                    "nested": {"key": "value"}
+                }
+            )
+            node.send_operation(custom_op)
+            
+            time.sleep(0.5)
+            
+            node.stop()
+            controller.stop()
+            time.sleep(0.2)
+        
+        # ASSERT
+        assert len(received_operations) == 1
+        op = received_operations[0]
+        assert op.action == ActionType.UPDATE
+        assert op.target == "videoplayer-001"
+        assert op.data["state"] == "playing"
+        assert op.data["nested"]["key"] == "value"
diff --git a/tests/test_controller_commands.py b/tests/test_controller_commands.py
new file mode 100644
index 0000000..12efcb7
--- /dev/null
+++ b/tests/test_controller_commands.py
@@ -0,0 +1,256 @@
+"""Tests for ControllerEngine cleanup consolidation and new commands.
+
+Tests _clear_playback_state(), refactored load_project/stop_script,
+and new get_project_status/unload_project/handle_editor_command dict returns.
+"""
+import pytest
+from unittest.mock import Mock, MagicMock, patch, PropertyMock
+from pathlib import Path
+from os import environ
+
+
+@pytest.fixture(autouse=True)
+def set_config_path():
+    """Point CUEMS_CONF_PATH at test XML files."""
+    test_conf_path = Path(__file__).parent / '..' / 'dev' / 'test_xml_files'
+    environ['CUEMS_CONF_PATH'] = str(test_conf_path)
+
+
+@pytest.fixture
+def controller():
+    """Create a minimal ControllerEngine with all heavy deps mocked out."""
+    with patch('cuemsengine.core.BaseEngine.ConfigManager') as MockCM, \
+         patch('cuemsengine.core.BaseEngine.BaseEngine.get_controller_ip', return_value='localhost'):
+
+        mock_cm_instance = MockCM.return_value
+        mock_cm_instance.node_conf = {
+            'uuid': 'test-controller-uuid',
+            'mtc_port': 'MTC_MIDI_PORT',
+        }
+        mock_cm_instance.library_path = str(Path(__file__).parent / '..' / 'dev' / 'test_xml_files')
+        mock_cm_instance.tmp_path = '/tmp'
+
+        from cuemsengine.ControllerEngine import ControllerEngine
+        engine = ControllerEngine(with_mtc=False)
+
+        # Mock communications_thread for _broadcast_status and _forward_command_to_nodes
+        engine.communications_thread = Mock()
+        engine.communications_thread.broadcast_osc = Mock()
+        engine.communications_thread.nng_hub = Mock()
+
+        yield engine
+
+        engine.stop()
+
+
+# ─── _clear_playback_state ───────────────────────────────────────────────
+
+class TestClearPlaybackState:
+    def test_clears_broadcast_timestamps(self, controller):
+        controller._cue_broadcast_timestamps = {'cue1': 1.0, 'cue2': 2.0}
+        controller._clear_playback_state()
+        assert controller._cue_broadcast_timestamps == {}
+
+    def test_resets_last_timecode_second(self, controller):
+        controller._last_timecode_second = 42
+        controller._clear_playback_state()
+        assert controller._last_timecode_second == -1
+
+    def test_broadcasts_timecode_zero(self, controller):
+        controller._clear_playback_state()
+        controller.communications_thread.broadcast_osc.assert_any_call(
+            '/engine/status/timecode', 0
+        )
+
+    def test_sets_armed_no(self, controller):
+        controller.set_status('armed', 'yes')
+        controller._clear_playback_state()
+        assert controller.get_status('armed') == 'no'
+
+    def test_clears_nextcue(self, controller):
+        controller.set_status('nextcue', 'some-cue-id')
+        controller._clear_playback_state()
+        assert controller.get_status('nextcue') == ''
+
+    def test_stops_timecode(self, controller):
+        with patch.object(controller, 'stop_timecode') as mock_stop_tc:
+            controller._clear_playback_state()
+            mock_stop_tc.assert_called_once()
+
+
+# ─── stop_script refactored ─────────────────────────────────────────────
+
+class TestStopScriptRefactored:
+    def test_stop_when_not_running_returns_none(self, controller):
+        controller.set_status('running', 'no')
+        result = controller.stop_script('stop')
+        assert result is None
+
+    def test_stop_calls_clear_playback_state(self, controller):
+        controller.set_status('running', 'yes')
+        with patch.object(controller, '_clear_playback_state') as mock_clear, \
+             patch.object(controller, '_forward_command_to_nodes'):
+            controller.stop_script('stop')
+            mock_clear.assert_called_once()
+
+    def test_stop_sets_running_no(self, controller):
+        controller.set_status('running', 'yes')
+        with patch.object(controller, '_forward_command_to_nodes'):
+            controller.stop_script('stop')
+        assert controller.get_status('running') == 'no'
+
+    def test_stop_nulls_go_offset(self, controller):
+        controller.set_status('running', 'yes')
+        controller.go_offset = 12345
+        with patch.object(controller, '_forward_command_to_nodes'):
+            controller.stop_script('stop')
+        assert controller.go_offset is None
+
+    def test_stop_resets_cue_status_values_to_zero(self, controller):
+        controller.set_status('running', 'yes')
+        controller.cue_status = {'cue1': 50, 'cue2': 100, 'cue3': 1}
+        with patch.object(controller, '_forward_command_to_nodes'):
+            controller.stop_script('stop')
+        assert all(v == 0 for v in controller.cue_status.values())
+        # Keys must be preserved
+        assert set(controller.cue_status.keys()) == {'cue1', 'cue2', 'cue3'}
+
+    def test_stop_forwards_stop_to_nodes(self, controller):
+        controller.set_status('running', 'yes')
+        with patch.object(controller, '_forward_command_to_nodes') as mock_fwd:
+            controller.stop_script('stop')
+            mock_fwd.assert_called_once_with('/engine/command/stop', 'stop')
+
+    def test_stop_returns_true(self, controller):
+        controller.set_status('running', 'yes')
+        with patch.object(controller, '_forward_command_to_nodes'):
+            result = controller.stop_script('stop')
+        assert result is True
+
+
+# ─── get_project_status ──────────────────────────────────────────────────
+
+class TestGetProjectStatus:
+    def test_returns_none_when_not_running(self, controller):
+        controller.set_status('running', 'no')
+        result = controller.get_project_status(None)
+        assert result == {"status": "none", "project_uuid": ""}
+
+    def test_returns_none_when_no_script(self, controller):
+        controller.set_status('running', 'no')
+        controller.script = None
+        result = controller.get_project_status(None)
+        assert result == {"status": "none", "project_uuid": ""}
+
+    def test_returns_running_with_uuid(self, controller):
+        controller.set_status('running', 'yes')
+        mock_script = Mock()
+        mock_script.id = 'aaaaaaaa-bbbb-cccc-dddd-eeeeeeeeeeee'
+        controller.script = mock_script
+        result = controller.get_project_status(None)
+        assert result == {
+            "status": "running",
+            "project_uuid": "aaaaaaaa-bbbb-cccc-dddd-eeeeeeeeeeee"
+        }
+
+    def test_loaded_but_not_playing_returns_none(self, controller):
+        """A loaded but not playing project should report status 'none'."""
+        controller.set_status('running', 'no')
+        mock_script = Mock()
+        mock_script.id = 'aaaaaaaa-bbbb-cccc-dddd-eeeeeeeeeeee'
+        controller.script = mock_script
+        result = controller.get_project_status(None)
+        assert result == {"status": "none", "project_uuid": ""}
+
+
+# ─── unload_project ─────────────────────────────────────────────────────
+
+class TestUnloadProject:
+    def test_rejects_when_running(self, controller):
+        controller.set_status('running', 'yes')
+        with pytest.raises(RuntimeError, match="Cannot unload while running"):
+            controller.unload_project(None)
+
+    def test_calls_clear_playback_state(self, controller):
+        controller.set_status('running', 'no')
+        with patch.object(controller, '_clear_playback_state') as mock_clear, \
+             patch.object(controller, '_forward_command_to_nodes'):
+            controller.unload_project(None)
+            mock_clear.assert_called_once()
+
+    def test_calls_reset_script(self, controller):
+        controller.set_status('running', 'no')
+        with patch.object(controller, 'reset_script') as mock_reset, \
+             patch.object(controller, '_forward_command_to_nodes'):
+            controller.unload_project(None)
+            mock_reset.assert_called_once()
+
+    def test_clears_cue_status(self, controller):
+        controller.set_status('running', 'no')
+        controller.cue_status = {'cue1': 0, 'cue2': 100}
+        with patch.object(controller, '_forward_command_to_nodes'):
+            controller.unload_project(None)
+        assert controller.cue_status == {}
+
+    def test_clears_load_status(self, controller):
+        controller.set_status('running', 'no')
+        controller.set_status('load', 'my_project')
+        with patch.object(controller, '_forward_command_to_nodes'):
+            controller.unload_project(None)
+        assert controller.get_status('load') == ''
+
+    def test_forwards_stop_to_nodes(self, controller):
+        controller.set_status('running', 'no')
+        with patch.object(controller, '_forward_command_to_nodes') as mock_fwd:
+            controller.unload_project(None)
+            mock_fwd.assert_called_once_with('/engine/command/stop', None)
+
+    def test_returns_true(self, controller):
+        controller.set_status('running', 'no')
+        with patch.object(controller, '_forward_command_to_nodes'):
+            result = controller.unload_project(None)
+        assert result is True
+
+
+# ─── handle_editor_command dict returns ──────────────────────────────────
+
+class TestHandleEditorCommandDictReturn:
+    def test_dict_return_passed_as_value(self, controller):
+        """When command returns a dict, confirm_to_editor gets that dict as value."""
+        with patch.object(controller, 'confirm_to_editor') as mock_confirm, \
+             patch.object(controller, 'set_editor_request'):
+            controller.handle_editor_command('project_status', None, context='ctx')
+            mock_confirm.assert_called_once()
+            call_kwargs = mock_confirm.call_args
+            # value should be a dict, not 'OK'
+            assert isinstance(call_kwargs[1]['value'], dict)
+            assert call_kwargs[1]['type'] == 'project_status'
+
+    def test_bool_return_sends_ok(self, controller):
+        """When command returns True (bool), confirm_to_editor gets 'OK'."""
+        controller.set_status('running', 'no')
+        with patch.object(controller, 'confirm_to_editor') as mock_confirm, \
+             patch.object(controller, 'set_editor_request'), \
+             patch.object(controller, '_forward_command_to_nodes'):
+            controller.handle_editor_command('project_unload', None, context='ctx')
+            mock_confirm.assert_called_once()
+            assert mock_confirm.call_args[1]['value'] == 'OK'
+
+    def test_unknown_command_raises(self, controller):
+        with pytest.raises(ValueError, match="not recognized"):
+            controller.handle_editor_command('nonexistent_command', None)
+
+    def test_project_status_in_command_dict(self, controller):
+        """project_status must be in command_dict and callable."""
+        with patch.object(controller, 'confirm_to_editor'), \
+             patch.object(controller, 'set_editor_request'):
+            # Should not raise
+            controller.handle_editor_command('project_status', None)
+
+    def test_project_unload_in_command_dict(self, controller):
+        """project_unload must be in command_dict and callable."""
+        controller.set_status('running', 'no')
+        with patch.object(controller, 'confirm_to_editor'), \
+             patch.object(controller, 'set_editor_request'), \
+             patch.object(controller, '_forward_command_to_nodes'):
+            controller.handle_editor_command('project_unload', None)
diff --git a/tests/test_core_baseengine.py b/tests/test_core_baseengine.py
new file mode 100644
index 0000000..e255cd2
--- /dev/null
+++ b/tests/test_core_baseengine.py
@@ -0,0 +1,79 @@
+import pytest
+from unittest.mock import Mock, patch
+from cuemsengine.core.BaseEngine import BaseEngine, MTC_PORT
+from .fixtures import mock_config_manager, env_config_path
+
+class TestBaseEngine:
+    def test_base_engine_initialization_with_all_components(self, env_config_path):
+        """Test BaseEngine initialization with both ConfigManager and MTC listener"""
+        engine = BaseEngine(with_cm=True, with_mtc=True)
+        
+        # Check basic attributes
+        assert engine.node_name == '0367f391-ebf4-48b2-9f26-000000000001'
+        assert engine.mtc_port == MTC_PORT
+        assert engine._timecode is None
+        assert engine.go_offset == 0
+        assert engine.node_host == 'http://000000000001.local'
+        assert engine.script is None
+        assert engine.stop_requested is False
+        assert engine.ongoing_cue is None
+        assert engine.next_cue_pointer is None
+
+        # Verify ConfigManager was initialized
+        assert hasattr(engine, 'cm')
+        
+        # Verify MTC listener was initialized
+        assert hasattr(engine, 'mtc_listener')
+
+    def test_base_engine_initialization_without_mtc(self, env_config_path, mock_config_manager):
+        """Test BaseEngine initialization without MTC listener"""
+        engine = BaseEngine(with_cm=True, with_mtc=False)
+        
+        # Check basic attributes
+        assert engine.node_name == '0367f391-ebf4-48b2-9f26-000000000001'
+        assert engine.mtc_port == MTC_PORT
+        assert engine._timecode is None
+        
+        # Verify ConfigManager was initialized
+        
+        # Verify MTC listener was not initialized
+        assert not hasattr(engine, 'mtc_listener')
+        assert hasattr(engine, 'cm')
+
+    def test_timecode_property(self, env_config_path):
+        """Test timecode property getter and setter"""
+        engine = BaseEngine(with_cm=False, with_mtc=False)
+        
+        # Test initial value
+        assert engine.timecode is None
+        
+        # Test setting timecode
+        engine.timecode = "01:00:00:00"
+        assert engine.timecode == "01:00:00:00"
+        
+        # Test timecode change callback
+        mock_callback = Mock()
+        engine.on_timecode_change = mock_callback # type: ignore[attr-defined]
+        engine.timecode = "02:00:00:00"
+        mock_callback.assert_called_once_with("02:00:00:00")
+
+    def test_stop_all(self, env_config_path, mock_config_manager):
+        """Test stop_all method"""
+        engine = BaseEngine(with_cm=True, with_mtc=True)
+        
+        engine.stop()
+        
+        assert engine.stop_requested is True
+        assert engine.running is False
+
+
+def test_get_status_endpoints(env_config_path):
+    from cuemsengine.osc import ValueType
+    engine = BaseEngine(with_cm=True, with_mtc=True)
+    endpoints = engine.get_status_endpoints()
+    for k, v in endpoints.items():
+        status_name = k.split('/')[-1]
+        assert status_name in engine.get_all_status_names()
+        assert v[0] == ValueType.String
+        assert v[1] == engine.status_callback
+        assert v[2] == getattr(engine.status, status_name)
diff --git a/tests/test_core_baseengine_status.py b/tests/test_core_baseengine_status.py
new file mode 100644
index 0000000..e18fe71
--- /dev/null
+++ b/tests/test_core_baseengine_status.py
@@ -0,0 +1,227 @@
+import pytest
+from unittest.mock import patch
+from os import environ
+from pathlib import Path
+
+from cuemsengine.core.BaseEngine import BaseEngine
+
+@pytest.fixture
+def daemon(with_signals: bool = True):
+    environ["CUEMS_CONF_PATH"] = str(Path(__file__).parent / ".." / "dev" / "test_xml_files")
+    return BaseEngine(with_signals=with_signals)
+
+@pytest.fixture
+def mock_signal():
+    with patch('signal.signal') as mock_signal_obj:
+        yield mock_signal_obj
+
+def test_engine_can_start_and_stop():
+    from time import sleep
+    from os import path, environ
+    from cuemsengine.core.BaseEngine import SHOW_LOCK_PATH
+
+    environ["CUEMS_CONF_PATH"] = str(Path(__file__).parent / ".." / "dev" / "test_xml_files")  
+    engine = BaseEngine(with_signals=False)
+    engine.set_show_lock_file()
+    sleep(0.05)
+
+    assert engine.show_locked == True
+    assert path.isfile(SHOW_LOCK_PATH)
+
+    engine.stop()
+    assert engine.show_locked == False
+    assert engine.running == False
+
+def test_engine_status(daemon):
+    assert daemon.status.load is None
+    assert daemon.status.loadcue is None
+    assert daemon.status.go is None
+    assert daemon.status.gocue is None
+    assert daemon.status.pause is None
+    assert daemon.status.stop is None
+    assert daemon.status.resetall is None
+    assert daemon.status.preload is None
+    assert daemon.status.unload is None
+    assert daemon.status.hwdiscovery is None
+    assert daemon.status.deploy is None
+    assert daemon.status.test is None
+    assert daemon.status.timecode is None
+    assert daemon.status.currentcue == []
+    assert daemon.status.nextcue is None
+    assert daemon.status.running is None
+
+def test_set_status(daemon):
+    daemon.set_status('load', 'test')
+    assert daemon.status.load == 'test'
+
+def test_get_status(daemon):
+    daemon.set_status('load', 'test')
+    assert daemon.get_status('load') == 'test'
+
+def test_recieved_test(daemon):
+    assert daemon.status.recieved == 0
+    daemon.set_status('test', 'test')
+    assert daemon.status.test == 'test'
+    assert daemon.status.recieved == 1
+    daemon.set_status('test', 'test2')
+    assert daemon.status.test == 'test2'
+    assert daemon.status.recieved == 2
+
+def test_get_status_none(daemon, caplog):
+    assert daemon.get_status('none') == "NotFound"
+    assert "Property none not found in EngineStatus" in caplog.text
+
+    try:
+        daemon.get_status('none', strict=True)
+    except AttributeError as e:
+        assert str(e) == "Property none not found in EngineStatus"
+
+def test_set_status_none(daemon, caplog):
+    daemon.set_status('none', 'test')
+    assert "Property none not found in EngineStatus" in caplog.text
+    try:
+        daemon.set_status('none', 'test', strict=True)
+    except AttributeError as e:
+        assert str(e) == "Property none not found in EngineStatus"
+
+STATUSES = [
+    "load",
+    "loadcue",
+    "go",
+    "gocue",
+    "pause",
+    "stop",
+    "resetall",
+    "preload",
+    "unload",
+    "hwdiscovery",
+    "deploy",
+    "test",
+    "timecode",
+    "nextcue",
+    "running",
+    "recieved",
+    "currentcue"
+]
+
+def test_all_statuses(daemon):
+    for i in vars(daemon.status).keys():
+        assert i[1:] in STATUSES
+    assert STATUSES == daemon.get_all_status_names()
+
+
+class TestCurrentCueProperty:
+    """Test the currentcue property behavior."""
+    
+    @pytest.fixture
+    def status(self):
+        from cuemsengine.core.EngineStatus import EngineStatus
+        return EngineStatus()
+    
+    def test_currentcue_accepts_tuple_of_two_elements(self, status):
+        """Test setting currentcue with a valid tuple of 2 elements."""
+        status.currentcue = ("cue_id_1", "playing")
+        
+        assert len(status.currentcue) == 1
+        assert status.currentcue[0] == ["cue_id_1", "playing"]
+    
+    def test_currentcue_accepts_list_of_two_elements(self, status):
+        """Test setting currentcue with a valid list of 2 elements."""
+        status.currentcue = ["cue_id_2", "stopped"]
+        
+        assert len(status.currentcue) == 1
+        assert status.currentcue[0] == ["cue_id_2", "stopped"]
+    
+    def test_currentcue_rejects_single_element(self, status):
+        """Test that single element raises ValueError."""
+        with pytest.raises(ValueError, match="must be a list or tuple of two strings"):
+            status.currentcue = ["only_one"]
+    
+    def test_currentcue_rejects_three_elements(self, status):
+        """Test that three elements raises ValueError."""
+        with pytest.raises(ValueError, match="must be a list or tuple of two strings"):
+            status.currentcue = ("one", "two", "three")
+    
+    def test_currentcue_rejects_empty(self, status):
+        """Test that empty list/tuple raises ValueError."""
+        with pytest.raises(ValueError, match="must be a list or tuple of two strings"):
+            status.currentcue = []
+
+    def test_currentcue_stringifies_non_string_values(self, status):
+        """Test that non-string values are converted to strings."""
+        # Numbers get stringified
+        status.currentcue = ("cue_1", 123)
+        assert status.currentcue[0] == ["cue_1", "123"]
+        
+        status.currentcue = (456, "playing")
+        assert ["456", "playing"] in status.currentcue
+        
+        # Dictionary gets stringified
+        status.currentcue = ("cue_dict", {"key": "value"})
+        assert status.currentcue[-1][0] == "cue_dict"
+        assert status.currentcue[-1][1] == "{'key': 'value'}"
+        
+        # Array gets stringified
+        status.currentcue = ("cue_list", [1, 2, 3])
+        assert status.currentcue[-1][0] == "cue_list"
+        assert status.currentcue[-1][1] == "[1, 2, 3]"
+
+    def test_currentcue_remove_specific_entry(self, status):
+        """Test that remove_currentcue removes a specific entry by ID."""
+        status.currentcue = ("cue_1", "playing")
+        status.currentcue = ("cue_2", "armed")
+        status.currentcue = ("cue_3", "stopped")
+        
+        assert len(status.currentcue) == 3
+        assert ["cue_2", "armed"] in status.currentcue
+        
+        status.remove_currentcue("cue_2")
+        assert len(status.currentcue) == 2
+        assert ["cue_1", "playing"] in status.currentcue
+        assert ["cue_3", "stopped"] in status.currentcue
+        assert ["cue_2", "armed"] not in status.currentcue
+        
+        status.remove_currentcue("cue_3")
+        assert len(status.currentcue) == 1
+        assert ["cue_1", "playing"] in status.currentcue
+        assert ["cue_3", "stopped"] not in status.currentcue
+    
+    def test_currentcue_deleter_clears_all(self, status):
+        """Test that del status.currentcue clears all entries."""
+        status.currentcue = ("cue_1", "playing")
+        status.currentcue = ("cue_2", "armed")
+        status.currentcue = ("cue_3", "stopped")
+        
+        assert len(status.currentcue) == 3
+        
+        del status.currentcue
+        assert status.currentcue == []
+    
+    def test_currentcue_updates_existing_entry(self, status):
+        """Test that setting same cue_id updates the value."""
+        status.currentcue = ("cue_1", "armed")
+        status.currentcue = ("cue_1", "playing")
+        
+        assert len(status.currentcue) == 1
+        assert status.currentcue[0] == ["cue_1", "playing"]
+    
+    def test_currentcue_multiple_entries(self, status):
+        """Test adding multiple different cue entries."""
+        status.currentcue = ("cue_1", "playing")
+        status.currentcue = ("cue_2", "armed")
+        status.currentcue = ("cue_3", "stopped")
+        
+        assert len(status.currentcue) == 3
+        assert ["cue_1", "playing"] in status.currentcue
+        assert ["cue_2", "armed"] in status.currentcue
+        assert ["cue_3", "stopped"] in status.currentcue
+    
+    def test_currentcue_update_preserves_other_entries(self, status):
+        """Test that updating one entry doesn't affect others."""
+        status.currentcue = ("cue_1", "playing")
+        status.currentcue = ("cue_2", "armed")
+        status.currentcue = ("cue_1", "finished")
+        
+        assert len(status.currentcue) == 2
+        assert ["cue_1", "finished"] in status.currentcue
+        assert ["cue_2", "armed"] in status.currentcue
diff --git a/tests/test_cpu_usage.py b/tests/test_cpu_usage.py
new file mode 100644
index 0000000..2ef844d
--- /dev/null
+++ b/tests/test_cpu_usage.py
@@ -0,0 +1,280 @@
+import pytest
+import time
+import psutil
+import threading
+from unittest.mock import patch, MagicMock
+from pathlib import Path
+
+from cuemsengine.core.BaseEngine import BaseEngine
+from cuemsengine.ControllerEngine import ControllerEngine
+from cuemsengine.NodeEngine import NodeEngine
+
+from .fixtures import mock_config_manager, env_config_path
+
+class TestBaseEngineCPUUsage:
+    """Test class for monitoring CPU usage of BaseEngine instances"""
+    
+    @pytest.fixture
+    def mock_config_manager(self):
+        """Mock ConfigManager to avoid file system dependencies"""
+        with patch('cuemsengine.core.BaseEngine.ConfigManager') as mock_cm:
+            mock_instance = MagicMock()
+            mock_instance.node_conf = {
+                'uuid': 'test-uuid-123456789012',
+                'mtc_port': 'Midi Through Port-0'
+            }
+            mock_instance.tmp_path = '/tmp'
+            mock_instance.is_alive.return_value = True
+            mock_instance.getName.return_value = 'TestConfigManager'
+            mock_cm.return_value = mock_instance
+            yield mock_instance
+    
+    @pytest.fixture
+    def mock_mtc_listener(self):
+        """Mock MtcListener to avoid hardware dependencies"""
+        with patch('cuemsengine.core.BaseEngine.MtcListener') as mock_mtc:
+            mock_instance = MagicMock()
+            mock_instance.timecode.return_value = '00:00:00:00'
+            mock_instance.run = MagicMock()
+            mock_instance.stop = MagicMock()
+            mock_instance.join = MagicMock()
+            mock_mtc.return_value = mock_instance
+            yield mock_instance
+    
+    @pytest.fixture
+    def base_engine(self, env_config_path):
+        """Create a BaseEngine instance with mocked dependencies"""
+        # Create engine with minimal initialization to avoid external dependencies
+        engine = NodeEngine(with_cm=False, with_mtc=True, with_signals=False)
+        return engine
+    
+    def get_process_cpu_percent(self, process, duration=1.0):
+        """Get CPU percentage for a process over a specified duration"""
+        cpu_percent = process.cpu_percent(interval=duration)
+        return cpu_percent
+    
+    def monitor_cpu_usage(self, process, duration=5.0, interval=0.5):
+        """Monitor CPU usage over time and return statistics"""
+        cpu_readings = []
+        start_time = time.time()
+        
+        while time.time() - start_time < duration:
+            cpu_percent = self.get_process_cpu_percent(process, interval)
+            cpu_readings.append(cpu_percent)
+            time.sleep(interval)
+        
+        if cpu_readings:
+            return {
+                'min': min(cpu_readings),
+                'max': max(cpu_readings),
+                'avg': sum(cpu_readings) / len(cpu_readings),
+                'readings': cpu_readings,
+                'duration': duration
+            }
+        return {'min': 0, 'max': 0, 'avg': 0, 'readings': [], 'duration': duration}
+    
+    @pytest.mark.slow
+    @pytest.mark.integration
+    def test_base_engine_idle_cpu_usage(self, base_engine, engine_cleanup):
+        """Test CPU usage when BaseEngine is idle (minimal activity)"""
+        # Register engine for cleanup
+        engine_cleanup(base_engine)
+        # base_engine.start()
+        
+        current_process = psutil.Process()
+        
+        # Get baseline CPU usage before engine operations
+        baseline_cpu = self.get_process_cpu_percent(current_process, 1.0)
+        
+
+        # Monitor CPU usage while engine is idle
+        idle_cpu_stats = self.monitor_cpu_usage(current_process, duration=3.0)
+        
+        # Verify that idle CPU usage is reasonable (should be low)
+        assert idle_cpu_stats['avg'] < 10.0, f"Idle CPU usage too high: {idle_cpu_stats['avg']}%"
+        assert idle_cpu_stats['max'] < 20.0, f"Peak idle CPU usage too high: {idle_cpu_stats['max']}%"
+        
+        # Log the results for debugging
+        print(f"\nIdle CPU Usage Stats:")
+        print(f"  Baseline: {baseline_cpu:.2f}%")
+        print(f"  Average: {idle_cpu_stats['avg']:.2f}%")
+        print(f"  Min: {idle_cpu_stats['min']:.2f}%")
+        print(f"  Max: {idle_cpu_stats['max']:.2f}%")
+    
+    @pytest.mark.slow
+    @pytest.mark.integration
+    def test_base_engine_continuous_operation_cpu_usage(self, base_engine, engine_cleanup):
+        """Test CPU usage during continuous engine operations"""
+        # Register engine for cleanup
+        engine_cleanup(base_engine)
+        
+        current_process = psutil.Process()
+        
+        # Start monitoring in background
+        cpu_stats = {'data': None}
+        monitoring_complete = threading.Event()
+        
+        def monitor_cpu():
+            cpu_stats['data'] = self.monitor_cpu_usage(current_process, duration=10.0)
+            monitoring_complete.set()
+        
+        monitor_thread = threading.Thread(target=monitor_cpu, daemon=True)
+        monitor_thread.start()
+        
+        # Simulate some engine operations
+        start_time = time.time()
+        operation_count = 0
+        
+        while not monitoring_complete.is_set() and (time.time() - start_time) < 12.0:
+            # Simulate periodic engine operations
+            if hasattr(base_engine, 'status'):
+                base_engine.set_status('test_property', f'value_{operation_count}')
+                operation_count += 1
+            
+            # Small delay to simulate work
+            time.sleep(0.1)
+        
+        # Wait for monitoring to complete
+        monitoring_complete.wait(timeout=2.0)
+        
+        if cpu_stats['data']:
+            stats = cpu_stats['data']
+            
+            # Verify that CPU usage during operations is reasonable
+            assert stats['avg'] < 50.0, f"Operation CPU usage too high: {stats['avg']}%"
+            assert stats['max'] < 80.0, f"Peak operation CPU usage too high: {stats['max']}%"
+            
+            # Log the results
+            print(f"\nOperation CPU Usage Stats:")
+            print(f"  Average: {stats['avg']:.2f}%")
+            print(f"  Min: {stats['min']:.2f}%")
+            print(f"  Max: {stats['max']:.2f}%")
+            print(f"  Operations performed: {operation_count}")
+        else:
+            assert False, "CPU monitoring thread did not complete"
+    
+    @pytest.mark.slow
+    @pytest.mark.integration
+    def test_base_engine_memory_usage(self, base_engine, engine_cleanup):
+        """Test memory usage of BaseEngine instance"""
+        # Register engine for cleanup
+        engine_cleanup(base_engine)
+        
+        current_process = psutil.Process()
+        
+        # Get initial memory usage
+        initial_memory = current_process.memory_info().rss / 1024 / 1024  # MB
+        
+        # Perform some operations
+        for i in range(100):
+            if hasattr(base_engine, 'status'):
+                base_engine.set_status(f'property_{i}', f'value_{i}')
+        
+        # Get final memory usage
+        final_memory = current_process.memory_info().rss / 1024 / 1024  # MB
+        memory_increase = final_memory - initial_memory
+        
+        # Verify memory usage is reasonable
+        assert final_memory < 500, f"Memory usage too high: {final_memory:.2f} MB"
+        assert memory_increase < 100, f"Memory increase too high: {memory_increase:.2f} MB"
+        
+        print(f"\nMemory Usage:")
+        print(f"  Initial: {initial_memory:.2f} MB")
+        print(f"  Final: {final_memory:.2f} MB")
+        print(f"  Increase: {memory_increase:.2f} MB")
+    
+    @pytest.mark.slow
+    @pytest.mark.integration
+    def test_base_engine_cpu_spike_handling(self, base_engine, engine_cleanup):
+        """Test how BaseEngine handles CPU spikes and recovers"""
+        # Register engine for cleanup
+        engine_cleanup(base_engine)
+        
+        current_process = psutil.Process()
+        
+        # Monitor baseline CPU
+        baseline_stats = self.monitor_cpu_usage(current_process, duration=2.0)
+        
+        # Simulate a CPU-intensive operation
+        def cpu_intensive_work():
+            # Simulate some CPU-intensive work
+            start = time.time()
+            while time.time() - start < 1.0:
+                _ = sum(i * i for i in range(1000))
+        
+        # Run CPU-intensive work in a thread
+        work_thread = threading.Thread(target=cpu_intensive_work)
+        work_thread.start()
+        work_thread.join()
+        
+        # Monitor CPU recovery
+        recovery_stats = self.monitor_cpu_usage(current_process, duration=3.0)
+        
+        # Verify CPU usage recovers to reasonable levels
+        assert recovery_stats['avg'] <= baseline_stats['avg'] * 2, \
+            f"CPU usage did not recover properly: {recovery_stats['avg']}% vs baseline {baseline_stats['avg']}%"
+        
+        print(f"\nCPU Spike Recovery Test:")
+        print(f"  Baseline average: {baseline_stats['avg']:.2f}%")
+        print(f"  Recovery average: {recovery_stats['avg']:.2f}%")
+        if baseline_stats['avg'] > 0:
+            print(f"  Recovery ratio: {recovery_stats['avg'] / baseline_stats['avg']:.2f}")
+    
+    @pytest.mark.slow
+    @pytest.mark.integration
+    def test_base_engine_long_running_stability(self, base_engine, engine_cleanup):
+        """Test CPU usage stability over a longer period"""
+        # Register engine for cleanup
+        engine_cleanup(base_engine)
+        
+        current_process = psutil.Process()
+        
+        # Monitor CPU usage over a longer period
+        long_term_stats = self.monitor_cpu_usage(current_process, duration=15.0, interval=1.0)
+        
+        # Verify long-term stability
+        assert long_term_stats['max'] - long_term_stats['min'] < 30.0, \
+            f"CPU usage too volatile: range {long_term_stats['max'] - long_term_stats['min']}%"
+        
+        # Check for any extreme outliers
+        readings = long_term_stats['readings']
+        if readings:
+            mean = sum(readings) / len(readings)
+            outliers = [r for r in readings if abs(r - mean) > mean * 2]
+            assert len(outliers) < len(readings) * 0.1, \
+                f"Too many CPU usage outliers: {len(outliers)} out of {len(readings)}"
+        
+        print(f"\nLong-term Stability Test:")
+        print(f"  Duration: {long_term_stats['duration']:.1f} seconds")
+        print(f"  Average: {long_term_stats['avg']:.2f}%")
+        print(f"  Min: {long_term_stats['min']:.2f}%")
+        print(f"  Max: {long_term_stats['max']:.2f}%")
+        print(f"  Range: {long_term_stats['max'] - long_term_stats['min']:.2f}%")
+        print(f"  Outliers: {len(outliers) if 'outliers' in locals() else 0}")
+    
+    def test_base_engine_cleanup_cpu_usage(self, base_engine, engine_cleanup):
+        """Test that CPU usage returns to normal after engine cleanup"""
+        # Register engine for cleanup
+        engine_cleanup(base_engine)
+        
+        current_process = psutil.Process()
+        
+        # Get CPU usage before cleanup
+        before_cleanup = self.get_process_cpu_percent(current_process, 1.0)
+        
+        # Perform cleanup
+        base_engine.stop_all()
+        
+        # Wait a moment for cleanup to complete
+        time.sleep(1.0)
+        
+        # Get CPU usage after cleanup
+        after_cleanup = self.get_process_cpu_percent(current_process, 1.0)
+        
+        # Verify cleanup doesn't cause excessive CPU usage
+        assert after_cleanup < 20.0, f"CPU usage after cleanup too high: {after_cleanup}%"
+        
+        print(f"\nCleanup CPU Usage:")
+        print(f"  Before cleanup: {before_cleanup:.2f}%")
+        print(f"  After cleanup: {after_cleanup:.2f}%")
+        print(f"  Difference: {after_cleanup - before_cleanup:.2f}%")
diff --git a/tests/test_cues_dmx.py b/tests/test_cues_dmx.py
new file mode 100644
index 0000000..753b964
--- /dev/null
+++ b/tests/test_cues_dmx.py
@@ -0,0 +1,482 @@
+import pytest
+from unittest.mock import Mock, patch, MagicMock, PropertyMock
+from time import sleep
+import sys
+
+# Patch the problematic import before importing cuemsengine
+sys.modules['cuemsutils.tools.Osc_nodes_hub'] = Mock()
+
+from cuemsutils.cues import DmxCue
+from cuemsutils.tools.CTimecode import CTimecode
+from cuemsengine.cues.arm_cue import arm_dmxCue
+from cuemsengine.cues.run_cue import run_dmxCue
+from cuemsengine.cues.loop_cue import loop_dmxCue
+from cuemsengine.players.DmxPlayer import DmxClient
+
+
+class TestArmDmxCue:
+    """Test cases for arm_dmxCue function."""
+    
+    @pytest.fixture
+    def mock_dmx_cue(self):
+        """Create a mock DmxCue for testing."""
+        cue = Mock(spec=DmxCue)
+        cue.id = 'test_dmx_cue_001'
+        cue.fadein_time = 1000  # milliseconds
+        cue.fadeout_time = 500
+        cue._local = True
+        
+        # Mock DmxScene structure
+        dmx_scene = Mock()
+        dmx_universe = Mock()
+        dmx_universe.universe_num = 1
+        
+        # Mock DMX channels
+        ch1 = Mock()
+        ch1.channel = 0
+        ch1.value = 255
+        
+        ch2 = Mock()
+        ch2.channel = 1
+        ch2.value = 128
+        
+        ch3 = Mock()
+        ch3.channel = 2
+        ch3.value = 64
+        
+        dmx_universe.dmx_channels = [ch1, ch2, ch3]
+        dmx_scene.DmxUniverse = dmx_universe
+        cue.DmxScene = dmx_scene
+        
+        return cue
+    
+    @pytest.fixture
+    def mock_dmx_client(self):
+        """Create a mock DmxClient."""
+        client = Mock(spec=DmxClient)
+        return client
+    
+    def test_arm_dmx_cue_success(self, mock_dmx_cue, mock_dmx_client):
+        """Test successful arming of DMX cue."""
+        with patch('cuemsengine.cues.arm_cue.PLAYER_HANDLER') as mock_handler:
+            mock_handler.get_dmx_player_client.return_value = mock_dmx_client
+            
+            arm_dmxCue(mock_dmx_cue)
+            
+            # Verify DMX player client was retrieved
+            mock_handler.get_dmx_player_client.assert_called_once()
+            
+            # Verify cue._osc was set to the client
+            assert mock_dmx_cue._osc == mock_dmx_client
+            
+            # Verify _dmx_frames was populated correctly
+            assert hasattr(mock_dmx_cue, '_dmx_frames')
+            assert 1 in mock_dmx_cue._dmx_frames
+            assert mock_dmx_cue._dmx_frames[1] == {0: 255, 1: 128, 2: 64}
+    
+    def test_arm_dmx_cue_no_player(self, mock_dmx_cue):
+        """Test arming DMX cue when no player is available."""
+        with patch('cuemsengine.cues.arm_cue.PLAYER_HANDLER') as mock_handler:
+            mock_handler.get_dmx_player_client.return_value = None
+            
+            arm_dmxCue(mock_dmx_cue)
+            
+            # Should return early without setting _osc or _dmx_frames
+            assert not hasattr(mock_dmx_cue, '_osc') or mock_dmx_cue._osc is None
+    
+    def test_arm_dmx_cue_no_scene_data(self, mock_dmx_cue, mock_dmx_client):
+        """Test arming DMX cue with no scene data."""
+        mock_dmx_cue.DmxScene = None
+        
+        with patch('cuemsengine.cues.arm_cue.PLAYER_HANDLER') as mock_handler:
+            mock_handler.get_dmx_player_client.return_value = mock_dmx_client
+            
+            arm_dmxCue(mock_dmx_cue)
+            
+            # Should set _dmx_frames to empty dict
+            assert mock_dmx_cue._dmx_frames == {}
+    
+    def test_arm_dmx_cue_no_universe_data(self, mock_dmx_cue, mock_dmx_client):
+        """Test arming DMX cue with no universe data."""
+        mock_dmx_cue.DmxScene.DmxUniverse = None
+        
+        with patch('cuemsengine.cues.arm_cue.PLAYER_HANDLER') as mock_handler:
+            mock_handler.get_dmx_player_client.return_value = mock_dmx_client
+            
+            arm_dmxCue(mock_dmx_cue)
+            
+            # Should set _dmx_frames to empty dict
+            assert mock_dmx_cue._dmx_frames == {}
+    
+    def test_arm_dmx_cue_no_channels(self, mock_dmx_cue, mock_dmx_client):
+        """Test arming DMX cue with no channel data."""
+        mock_dmx_cue.DmxScene.DmxUniverse.dmx_channels = []
+        
+        with patch('cuemsengine.cues.arm_cue.PLAYER_HANDLER') as mock_handler:
+            mock_handler.get_dmx_player_client.return_value = mock_dmx_client
+            
+            arm_dmxCue(mock_dmx_cue)
+            
+            # Should set _dmx_frames to empty dict
+            assert mock_dmx_cue._dmx_frames == {}
+    
+    def test_arm_dmx_cue_multiple_channels(self, mock_dmx_cue, mock_dmx_client):
+        """Test arming DMX cue with many channels."""
+        # Create 10 channels
+        channels = []
+        for i in range(10):
+            ch = Mock()
+            ch.channel = i
+            ch.value = i * 10
+            channels.append(ch)
+        
+        mock_dmx_cue.DmxScene.DmxUniverse.dmx_channels = channels
+        
+        with patch('cuemsengine.cues.arm_cue.PLAYER_HANDLER') as mock_handler:
+            mock_handler.get_dmx_player_client.return_value = mock_dmx_client
+            
+            arm_dmxCue(mock_dmx_cue)
+            
+            # Verify all channels were extracted
+            assert len(mock_dmx_cue._dmx_frames[1]) == 10
+            for i in range(10):
+                assert mock_dmx_cue._dmx_frames[1][i] == i * 10
+    
+    def test_arm_dmx_cue_error_handling(self, mock_dmx_cue, mock_dmx_client):
+        """Test error handling in arm_dmxCue."""
+        # Make DmxScene raise an exception
+        mock_dmx_cue.DmxScene.DmxUniverse.dmx_channels = Mock(side_effect=AttributeError("Test error"))
+        
+        with patch('cuemsengine.cues.arm_cue.PLAYER_HANDLER') as mock_handler:
+            mock_handler.get_dmx_player_client.return_value = mock_dmx_client
+            
+            arm_dmxCue(mock_dmx_cue)
+            
+            # Should set _dmx_frames to empty dict on error
+            assert mock_dmx_cue._dmx_frames == {}
+
+
+class TestRunDmxCue:
+    """Test cases for run_dmxCue function."""
+    
+    @pytest.fixture
+    def mock_dmx_cue(self):
+        """Create a mock DmxCue for running."""
+        cue = Mock(spec=DmxCue)
+        cue.id = 'test_dmx_cue_001'
+        cue.fadein_time = 2000  # 2 seconds in milliseconds
+        cue.fadeout_time = 1000  # 1 second in milliseconds
+        cue._local = True
+        # Duration = fadein_time + fadeout_time = 3000ms = 3 seconds
+        
+        # Mock DMX frames
+        cue._dmx_frames = {
+            1: {0: 255, 1: 128, 2: 64}
+        }
+        
+        # Mock OSC client
+        cue._osc = Mock(spec=DmxClient)
+        
+        return cue
+    
+    @pytest.fixture
+    def mock_mtc(self):
+        """Create a mock MTC listener."""
+        mtc = Mock()
+        mtc.main_tc = Mock()
+        mtc.main_tc.milliseconds = 10000  # 10 seconds
+        return mtc
+    
+    def test_run_dmx_cue_success(self, mock_dmx_cue, mock_mtc):
+        """Test successful running of DMX cue."""
+        run_dmxCue(mock_dmx_cue, mock_mtc)
+        
+        # Verify MTC timing was calculated
+        assert hasattr(mock_dmx_cue, '_start_mtc')
+        assert hasattr(mock_dmx_cue, '_end_mtc')
+        
+        # Verify send_dmx_scene was called
+        mock_dmx_cue._osc.send_dmx_scene.assert_called_once()
+        
+        # Verify call parameters
+        call_args = mock_dmx_cue._osc.send_dmx_scene.call_args
+        assert call_args.kwargs['universe_frames'] == {1: {0: 255, 1: 128, 2: 64}}
+        assert call_args.kwargs['mtc_time'] == mock_dmx_cue._start_mtc.milliseconds
+        assert call_args.kwargs['fade_time'] == 2.0  # 2000ms / 1000
+    
+    def test_run_dmx_cue_no_frames(self, mock_dmx_cue, mock_mtc):
+        """Test running DMX cue with no frame data."""
+        mock_dmx_cue._dmx_frames = {}
+        
+        run_dmxCue(mock_dmx_cue, mock_mtc)
+        
+        # Should return early without calling send_dmx_scene
+        mock_dmx_cue._osc.send_dmx_scene.assert_not_called()
+    
+    def test_run_dmx_cue_no_osc_client(self, mock_dmx_cue, mock_mtc):
+        """Test running DMX cue with no OSC client."""
+        mock_dmx_cue._osc = None
+        
+        run_dmxCue(mock_dmx_cue, mock_mtc)
+        
+        # Should return early (no exception)
+        # Just verify it doesn't crash
+        assert mock_dmx_cue._osc is None
+    
+    def test_run_dmx_cue_zero_fadein(self, mock_dmx_cue, mock_mtc):
+        """Test running DMX cue with zero fadein time."""
+        mock_dmx_cue.fadein_time = 0
+        
+        run_dmxCue(mock_dmx_cue, mock_mtc)
+        
+        # Verify fade_time is 0.0
+        call_args = mock_dmx_cue._osc.send_dmx_scene.call_args
+        assert call_args.kwargs['fade_time'] == 0.0
+    
+    def test_run_dmx_cue_no_fadein_attribute(self, mock_dmx_cue, mock_mtc):
+        """Test running DMX cue without fadein_time attribute."""
+        del mock_dmx_cue.fadein_time
+        
+        run_dmxCue(mock_dmx_cue, mock_mtc)
+        
+        # Should default to 0.0
+        call_args = mock_dmx_cue._osc.send_dmx_scene.call_args
+        assert call_args.kwargs['fade_time'] == 0.0
+    
+    def test_run_dmx_cue_error_handling(self, mock_dmx_cue, mock_mtc):
+        """Test error handling in run_dmxCue."""
+        # Make send_dmx_scene raise an exception
+        mock_dmx_cue._osc.send_dmx_scene.side_effect = Exception("Test error")
+        
+        # Should not raise exception (error is caught and logged)
+        run_dmxCue(mock_dmx_cue, mock_mtc)
+        
+        # Verify send_dmx_scene was attempted
+        mock_dmx_cue._osc.send_dmx_scene.assert_called_once()
+    
+    def test_run_dmx_cue_mtc_offset_calculation(self, mock_dmx_cue, mock_mtc):
+        """Test MTC offset calculation."""
+        mtc_time = 15000  # 15 seconds
+        mock_mtc.main_tc.milliseconds = mtc_time
+        
+        run_dmxCue(mock_dmx_cue, mock_mtc)
+        
+        # Verify start and end MTC were calculated
+        # Allow for small rounding differences (CTimecode may round slightly)
+        assert abs(mock_dmx_cue._start_mtc.milliseconds - mtc_time) <= 1
+        
+        # End MTC should be greater than start MTC
+        # Duration is calculated from fadein_time + fadeout_time (2000 + 1000 = 3000ms)
+        # Allow for small rounding differences
+        expected_duration = 3000  # fadein_time + fadeout_time
+        assert abs((mock_dmx_cue._end_mtc.milliseconds - mock_dmx_cue._start_mtc.milliseconds) - expected_duration) <= 1
+    
+    def test_run_dmx_cue_multiple_universes(self, mock_dmx_cue, mock_mtc):
+        """Test running DMX cue with multiple universes."""
+        mock_dmx_cue._dmx_frames = {
+            1: {0: 255, 1: 128},
+            2: {0: 100, 1: 200},
+            3: {0: 50}
+        }
+        
+        run_dmxCue(mock_dmx_cue, mock_mtc)
+        
+        # Verify all universes were passed to send_dmx_scene
+        call_args = mock_dmx_cue._osc.send_dmx_scene.call_args
+        assert len(call_args.kwargs['universe_frames']) == 3
+        assert 1 in call_args.kwargs['universe_frames']
+        assert 2 in call_args.kwargs['universe_frames']
+        assert 3 in call_args.kwargs['universe_frames']
+
+
+class TestLoopDmxCue:
+    """Test cases for loop_dmxCue function."""
+    
+    @pytest.fixture
+    def mock_dmx_cue(self):
+        """Create a mock DmxCue for looping."""
+        cue = Mock(spec=DmxCue)
+        cue.id = 'test_dmx_cue_001'
+        cue._local = True
+        cue.loop = 0  # No looping
+        cue.fadein_time = 2000  # 2 seconds
+        cue.fadeout_time = 3000  # 3 seconds
+        # Duration = fadein_time + fadeout_time = 5000ms = 5 seconds
+        
+        # Mock timing
+        cue._start_mtc = CTimecode(start_seconds=10.0)
+        cue._end_mtc = CTimecode(start_seconds=15.0)
+        
+        return cue
+    
+    @pytest.fixture
+    def mock_mtc(self):
+        """Create a mock MTC listener."""
+        mtc = Mock()
+        mtc.main_tc = Mock()
+        mtc.main_tc.milliseconds = 10000  # Start at 10 seconds
+        return mtc
+    
+    def test_loop_dmx_cue_waits_for_duration(self, mock_dmx_cue, mock_mtc):
+        """Test that loop_dmxCue waits for cue duration."""
+        # Set up MTC with a simple attribute that can be updated
+        mock_main_tc = Mock()
+        mock_main_tc.milliseconds = 10000  # Start at 10 seconds
+        mock_mtc.main_tc = mock_main_tc
+        
+        # Set _end_mtc to a value that requires waiting
+        from cuemsutils.tools.CTimecode import CTimecode
+        mock_dmx_cue._end_mtc = CTimecode(start_seconds=15.0)  # End at 15 seconds
+        
+        with patch('cuemsengine.cues.loop_cue.sleep') as mock_sleep:
+            # Simulate MTC advancing: after first sleep, advance to past end time
+            call_count = [0]
+            def advance_mtc(*args, **kwargs):
+                call_count[0] += 1
+                if call_count[0] == 1:
+                    # After first sleep call, advance MTC past end time
+                    mock_main_tc.milliseconds = 15000
+            
+            mock_sleep.side_effect = advance_mtc
+            
+            loop_dmxCue(mock_dmx_cue, mock_mtc)
+            
+            # Verify sleep was called at least once (waiting for duration)
+            assert mock_sleep.call_count >= 1
+    
+    def test_loop_dmx_cue_local_guard(self, mock_dmx_cue, mock_mtc):
+        """Test that loop_dmxCue has cue._local guard for future use."""
+        # Set MTC to already be past end time
+        mock_mtc.main_tc.milliseconds = 20000
+        
+        with patch('cuemsengine.cues.loop_cue.sleep'):
+            loop_dmxCue(mock_dmx_cue, mock_mtc)
+            
+            # Should complete without error
+            # The _local guard is present but currently just has 'pass'
+            assert True  # Test passes if no exception
+    
+    def test_loop_dmx_cue_remote(self, mock_dmx_cue, mock_mtc):
+        """Test loop_dmxCue with remote cue (cue._local = False)."""
+        mock_dmx_cue._local = False
+        mock_mtc.main_tc.milliseconds = 20000  # Past end time
+        
+        with patch('cuemsengine.cues.loop_cue.sleep'):
+            loop_dmxCue(mock_dmx_cue, mock_mtc)
+            
+            # Should still wait for duration (timing applies to all cues)
+            assert True  # Test passes if no exception
+    
+    def test_loop_dmx_cue_attribute_error(self, mock_dmx_cue, mock_mtc):
+        """Test loop_dmxCue handles AttributeError gracefully."""
+        # Remove _end_mtc to cause AttributeError
+        del mock_dmx_cue._end_mtc
+        
+        with patch('cuemsengine.cues.loop_cue.sleep'):
+            # Should not raise exception (caught by try/except)
+            loop_dmxCue(mock_dmx_cue, mock_mtc)
+            
+            assert True  # Test passes if no exception
+    
+    def test_loop_dmx_cue_timing_accuracy(self, mock_dmx_cue, mock_mtc):
+        """Test that loop_dmxCue waits until correct end time."""
+        # Set up MTC progression
+        current_time = [10000]  # Start at 10 seconds
+        
+        def advance_time():
+            current_time[0] += 1000  # Advance 1 second per check
+            return current_time[0]
+        
+        type(mock_mtc.main_tc).milliseconds = property(lambda self: advance_time())
+        
+        with patch('cuemsengine.cues.loop_cue.sleep') as mock_sleep:
+            mock_dmx_cue._end_mtc = CTimecode(start_seconds=14.0)  # End at 14 seconds
+            
+            loop_dmxCue(mock_dmx_cue, mock_mtc)
+            
+            # Should loop until MTC reaches or exceeds end time
+            # sleep should be called multiple times (once per 5ms check)
+            assert mock_sleep.call_count >= 1
+
+
+class TestDmxCueIntegration:
+    """Integration tests for DMX cue workflow."""
+    
+    @pytest.fixture
+    def dmx_cue(self):
+        """Create a realistic DmxCue for integration testing."""
+        cue = Mock(spec=DmxCue)
+        cue.id = 'dmx_001'
+        cue.fadein_time = 1000
+        cue.fadeout_time = 500
+        cue._local = True
+        cue.loop = 0
+        
+        # Setup DmxScene
+        dmx_scene = Mock()
+        dmx_universe = Mock()
+        dmx_universe.universe_num = 1
+        
+        ch1 = Mock()
+        ch1.channel = 0
+        ch1.value = 255
+        ch2 = Mock()
+        ch2.channel = 1
+        ch2.value = 128
+        
+        dmx_universe.dmx_channels = [ch1, ch2]
+        dmx_scene.DmxUniverse = dmx_universe
+        cue.DmxScene = dmx_scene
+        
+        # Setup fade times (duration = fadein + fadeout = 5000ms)
+        cue.fadein_time = 2000  # 2 seconds
+        cue.fadeout_time = 3000  # 3 seconds
+        
+        return cue
+    
+    def test_arm_run_loop_workflow(self, dmx_cue):
+        """Test complete workflow: arm -> run -> loop."""
+        mock_client = Mock(spec=DmxClient)
+        mock_mtc = Mock()
+        
+        # Create a mock main_tc object with milliseconds as a simple attribute
+        # We'll update it directly when needed
+        mock_main_tc = Mock()
+        mock_main_tc.milliseconds = 1000
+        mock_mtc.main_tc = mock_main_tc
+        
+        with patch('cuemsengine.cues.arm_cue.PLAYER_HANDLER') as mock_handler, \
+             patch('cuemsengine.cues.loop_cue.sleep') as mock_sleep:
+            
+            mock_handler.get_dmx_player_client.return_value = mock_client
+            
+            # Step 1: Arm the cue
+            arm_dmxCue(dmx_cue)
+            
+            assert dmx_cue._osc == mock_client
+            assert dmx_cue._dmx_frames == {1: {0: 255, 1: 128}}
+            
+            # Step 2: Run the cue (with MTC at 1000ms)
+            run_dmxCue(dmx_cue, mock_mtc)
+            
+            assert hasattr(dmx_cue, '_start_mtc')
+            assert hasattr(dmx_cue, '_end_mtc')
+            mock_client.send_dmx_scene.assert_called_once()
+            
+            # Verify _end_mtc was calculated correctly
+            # _start_mtc should be ~1000ms, _end_mtc should be start + (fadein + fadeout)
+            # fadein_time=2000ms, fadeout_time=3000ms, so duration=5000ms
+            expected_duration = 5000
+            assert abs((dmx_cue._end_mtc.milliseconds - dmx_cue._start_mtc.milliseconds) - expected_duration) <= 1
+            
+            # Step 3: Loop/wait for duration
+            # Set MTC to well past end time so loop exits immediately
+            # Use a value that's definitely greater than _end_mtc
+            mock_main_tc.milliseconds = dmx_cue._end_mtc.milliseconds + 10000
+            loop_dmxCue(dmx_cue, mock_mtc)
+            
+            # Since MTC is already past end time, sleep should not be called
+            # (or called very few times if there's a race condition)
+            # Complete workflow executed successfully
+            assert True
+
diff --git a/tests/test_default_mappings_valid.py b/tests/test_default_mappings_valid.py
new file mode 100644
index 0000000..7c30264
--- /dev/null
+++ b/tests/test_default_mappings_valid.py
@@ -0,0 +1,32 @@
+# SPDX-FileCopyrightText: 2026 Stagelab Coop SCCL
+# SPDX-License-Identifier: GPL-3.0-or-later
+# SPDX-FileContributor: Ion Reguera <ion@stagelab.coop>
+
+from pathlib import Path
+
+import pytest
+
+from cuemsutils.xml import XmlReaderWriter
+
+# XML fixtures under dev/test_xml_files/ that BaseEngine and related
+# code paths load when engine tests set CUEMS_CONF_PATH to this dir.
+# Each must stay schema-valid or BaseEngine.load_config() exits -1 and
+# every test that touches engine startup breaks.
+FIXTURE_DIR = Path(__file__).parent.parent / "dev" / "test_xml_files"
+
+FIXTURES = [
+    ("settings.xml", "settings"),
+    ("network_map.xml", "network_map"),
+    ("project_settings.xml", "project_settings"),
+    ("project_mappings.xml", "project_mappings"),
+    ("default_mappings.xml", "project_mappings"),
+]
+
+
+@pytest.mark.parametrize("xml_name,schema_name", FIXTURES)
+def test_engine_xml_fixture_validates_against_schema(xml_name, schema_name):
+    reader = XmlReaderWriter(
+        schema_name=schema_name,
+        xmlfile=str(FIXTURE_DIR / xml_name),
+    )
+    reader.validate()
diff --git a/tests/test_loop_rebase.py b/tests/test_loop_rebase.py
new file mode 100644
index 0000000..aec4521
--- /dev/null
+++ b/tests/test_loop_rebase.py
@@ -0,0 +1,98 @@
+"""Regression test for engine loop-period drift.
+
+Exercises the exact `_start_mtc`/`_end_mtc` rebase arithmetic used inside
+`loop_audioCue` and `loop_videoCue` when a cue loops. Before the fix, the
+rebase went through `CTimecode(start_seconds=_end_mtc.milliseconds/1000)`,
+which loses one frame of the target framerate on every iteration (40 ms at
+25 fps MTC). The fix assigns `_start_mtc` directly from the previous
+`_end_mtc.frames`, skipping the lossy ms->s->frames round-trip.
+
+The symptom was audio cues loop-starting ~29960 ms apart instead of 30000 ms,
+drifting linearly against the videocomposer which wraps at the true media
+length.
+"""
+
+from __future__ import annotations
+
+import pytest
+from cuemsutils.tools.CTimecode import CTimecode
+
+
+def _rebase_fixed(end_mtc: CTimecode, duration: CTimecode) -> tuple[CTimecode, CTimecode]:
+    """Mirror of the fixed rebase in loop_cue.py:107-108 and :224-225."""
+    start_mtc = CTimecode(framerate=end_mtc.framerate, frames=end_mtc.frames)
+    new_end_mtc = start_mtc + duration
+    return start_mtc, new_end_mtc
+
+
+def _rebase_buggy(end_mtc: CTimecode, duration: CTimecode, framerate) -> tuple[CTimecode, CTimecode]:
+    """Mirror of the pre-fix rebase — kept for contrast so the test documents
+    the drift the fix eliminates."""
+    start_mtc = CTimecode(framerate=framerate, start_seconds=end_mtc.milliseconds / 1000)
+    new_end_mtc = start_mtc + duration
+    return start_mtc, new_end_mtc
+
+
+@pytest.mark.parametrize("framerate", ["25", "30", "24"])
+def test_rebase_preserves_30s_duration_over_10_iterations(framerate):
+    """After the fix, each loop iteration advances _start_mtc by exactly one
+    duration. Drift must be zero across many iterations."""
+    duration = CTimecode("00:00:30.000").return_in_other_framerate(framerate)
+    duration_ms = 30000
+
+    start_mtc = CTimecode(framerate=framerate, frames=1)  # simulate cue GO at MTC=0
+    end_mtc = start_mtc + duration
+
+    prev_start_ms = start_mtc.milliseconds
+    for i in range(1, 11):
+        start_mtc, end_mtc = _rebase_fixed(end_mtc, duration)
+        delta = start_mtc.milliseconds - prev_start_ms
+        assert delta == duration_ms, (
+            f"iter {i} @ {framerate} fps: _start_mtc advanced by {delta} ms, "
+            f"expected {duration_ms} ms (drift = {delta - duration_ms} ms)"
+        )
+        prev_start_ms = start_mtc.milliseconds
+
+
+def test_buggy_rebase_drifts_one_frame_per_iter_at_25fps():
+    """Pin the pre-fix behaviour so a future regression is obvious: the old
+    rebase lost exactly one 25 fps frame (40 ms) per iteration."""
+    framerate = "25"
+    duration = CTimecode("00:00:30.000").return_in_other_framerate(framerate)
+
+    start_mtc = CTimecode(framerate=framerate, frames=1)
+    end_mtc = start_mtc + duration
+
+    drifts = []
+    prev_start_ms = start_mtc.milliseconds
+    for _ in range(5):
+        start_mtc, end_mtc = _rebase_buggy(end_mtc, duration, framerate)
+        delta = start_mtc.milliseconds - prev_start_ms
+        drifts.append(delta - 30000)
+        prev_start_ms = start_mtc.milliseconds
+
+    assert all(d == -40 for d in drifts), (
+        f"expected buggy path to lose exactly 40 ms/iter at 25 fps, got {drifts}"
+    )
+
+
+def test_fixed_rebase_matches_absolute_anchor():
+    """Chained direct-assign must yield the same result as an absolute anchor
+    computation `start + N*duration` — they're equivalent when duration is
+    exact in the working framerate."""
+    framerate = "25"
+    duration = CTimecode("00:00:30.000").return_in_other_framerate(framerate)
+    initial_frames = 1 + 33040 // 40  # simulate cue GO at MTC=33040 ms (25 fps)
+
+    start_mtc = CTimecode(framerate=framerate, frames=initial_frames)
+    end_mtc = start_mtc + duration
+
+    for i in range(1, 6):
+        start_mtc, end_mtc = _rebase_fixed(end_mtc, duration)
+        anchor = CTimecode(framerate=framerate, frames=initial_frames)
+        for _ in range(i):
+            anchor = anchor + duration
+        assert start_mtc.milliseconds == anchor.milliseconds, (
+            f"iter {i}: chained rebase ({start_mtc.milliseconds} ms) "
+            f"disagrees with absolute anchor ({anchor.milliseconds} ms)"
+        )
diff --git a/tests/test_mtclistener.py b/tests/test_mtclistener.py
new file mode 100644
index 0000000..c46589e
--- /dev/null
+++ b/tests/test_mtclistener.py
@@ -0,0 +1,120 @@
+#!/usr/bin/env python3
+
+import pytest
+from unittest.mock import patch, MagicMock
+import mido
+from cuemsengine.tools.MtcListener import MtcListener
+from cuemsutils.tools.CTimecode import CTimecode
+
+class TestMtcListener:
+    @pytest.fixture
+    def mock_mido(self):
+        with patch('mido.get_input_names') as mock_get_names, \
+             patch('mido.open_input') as mock_open_input:
+            mock_get_names.return_value = ['MTC Port 1', 'MTC Port 2']
+            mock_port = MagicMock()
+            mock_open_input.return_value = mock_port
+            mock_port.close.return_value = None
+            yield mock_port
+
+    @pytest.fixture
+    def mtc_listener(self, mock_mido):
+        step_callback = MagicMock()
+        reset_callback = MagicMock()
+        listener = MtcListener(
+            step_callback=step_callback,
+            reset_callback=reset_callback,
+            port=1234
+        )
+        yield listener
+        listener.stop()
+
+    def test_initialization(self, mtc_listener):
+        """Test that MtcListener initializes correctly"""
+        assert mtc_listener.port_name == 1234
+        assert mtc_listener.step_callback is not None
+        assert mtc_listener.reset_callback is not None
+        assert mtc_listener.daemon is True
+        assert isinstance(mtc_listener.main_tc, CTimecode)
+        assert mtc_listener.main_tc.fraction_frame is True
+
+    def test_timecode_methods(self, mtc_listener):
+        """Test timecode and milliseconds methods"""
+        # Set a specific timecode
+        test_tc = CTimecode('1:2:3:4')
+        mtc_listener.main_tc = test_tc
+        
+        assert mtc_listener.timecode() == test_tc
+        assert mtc_listener.milliseconds() == int(test_tc.frames * (1000 / float(test_tc._framerate)))
+
+    def test_quarter_frame_handling(self, mtc_listener):
+        """Test handling of quarter frame messages"""
+        # Create a quarter frame message
+        message = MagicMock()
+        message.type = 'quarter_frame'
+        message.frame_type = 4
+        message.frame_value = 15
+
+        # Call the message handler
+        mtc_listener._MtcListener__handle_message(message)
+
+        # Verify quarter frames array was updated
+        assert mtc_listener._MtcListener__quarter_frames[4] == 15
+
+    def test_sysex_handling(self, mtc_listener):
+        """Test handling of sysex messages"""
+        # Create a sysex message with timecode data
+        message = MagicMock()
+        message.type = 'sysex'
+        message.data = (127, 127, 1, 1, 1, 2, 3, 4)  # Hours: 1, Minutes: 2, Seconds: 3, Frames: 4
+
+        # Call the message handler
+        mtc_listener._MtcListener__handle_message(message)
+        tc = mtc_listener.main_tc
+        hours, minutes, seconds, frames = tc.frames_to_tc(tc.frames)
+
+        # Verify timecode was updated
+        assert hours == 1
+        assert minutes == 2
+        assert seconds == 3
+        assert frames == 4
+
+    def test_mtc_decoding(self, mtc_listener):
+        """Test MTC decoding methods"""
+        # Test full frame decoding
+        mtc_bytes = (1, 2, 3, 4)  # Hours: 1, Minutes: 2, Seconds: 3, Frames: 4
+        tc = mtc_listener._MtcListener__mtc_decode(mtc_bytes)
+        hours, minutes, seconds, frames = tc.frames_to_tc(tc.frames)
+        
+        assert hours == 1
+        assert minutes == 2
+        assert seconds == 3
+        assert frames == 4
+
+        # Test quarter frame decoding
+        frame_pieces = [0, 0, 0, 0, 0, 0, 0, 0]
+        frame_pieces[0] = 1  # Set frames
+        frame_pieces[2] = 2  # Set seconds
+        frame_pieces[4] = 3  # Set minutes
+        frame_pieces[6] = 4  # Set hours
+        
+        tc = mtc_listener._MtcListener__mtc_decode_quarter_frames(frame_pieces)
+        hours, minutes, seconds, frames = tc.frames_to_tc(tc.frames)
+        assert tc is not None
+        assert hours == 4
+        assert minutes == 3
+        assert seconds == 2
+        assert frames == 1
+
+    # def test_stop_method(self, mtc_listener, mock_mido):
+    #     """Test that stop method closes the port"""
+    #     mtc_listener.stop()
+    #     mock_mido.mock_port.close.assert_called_once()
+
+    def test_invalid_message_type(self, mtc_listener):
+        """Test handling of invalid message types"""
+        message = MagicMock()
+        message.type = 'invalid_type'
+        
+        with pytest.raises(NotImplementedError):
+            mtc_listener._MtcListener__handle_message(message) 
diff --git a/tests/test_nodeengine_helpers.py b/tests/test_nodeengine_helpers.py
new file mode 100644
index 0000000..be3d546
--- /dev/null
+++ b/tests/test_nodeengine_helpers.py
@@ -0,0 +1,120 @@
+# SPDX-FileCopyrightText: 2026 Stagelab Coop SCCL
+# SPDX-License-Identifier: GPL-3.0-or-later
+# SPDX-FileContributor: Ion Reguera <ion@stagelab.coop>
+"""Unit tests for NodeEngine module-level helpers.
+
+Covers _append_output_latency_flag across all combinations of
+(args, output_latency_ms) that can arise from /etc/cuems/settings.xml:
+
+  - args: non-empty string (audioplayer's `-w -1`), empty string,
+    None (empty <args/> element decoded by xmlschema)
+  - output_latency_ms: int (explicit override), 'auto', None (absent key)
+
+Also exercises the full spawn-argv construction path used by
+AudioPlayer / DmxPlayer to guarantee the flag lands at the right
+position in the subprocess argv — closing the "audioplayer not
+observed live" gap from the 2026-04-23 Phase-5 manual test.
+"""
+
+import sys
+from unittest.mock import Mock
+
+# Mirror the import shim used by sibling tests
+sys.modules.setdefault('cuemsutils.tools.Osc_nodes_hub', Mock())
+
+from cuemsengine.NodeEngine import _append_output_latency_flag
+
+
+class TestAppendOutputLatencyFlag:
+    """_append_output_latency_flag: args string × output_latency_ms value."""
+
+    def test_audioplayer_shape_int(self):
+        """audioplayer: args='-w -1', int value → both concatenated."""
+        result = _append_output_latency_flag('-w -1', {'output_latency_ms': 42})
+        assert result == '-w -1 --output-latency-ms 42'
+
+    def test_dmxplayer_shape_empty_args_int(self):
+        """dmxplayer: <args></args> decodes to None + int → no literal 'None'."""
+        result = _append_output_latency_flag(None, {'output_latency_ms': 35})
+        assert result == '--output-latency-ms 35'
+        assert 'None' not in result
+
+    def test_empty_string_args_int(self):
+        """Empty-string args behaves like None."""
+        result = _append_output_latency_flag('', {'output_latency_ms': 42})
+        assert result == '--output-latency-ms 42'
+
+    def test_auto_suppresses_flag(self):
+        """'auto' → don't emit the flag; args returned unchanged."""
+        result = _append_output_latency_flag('-w -1', {'output_latency_ms': 'auto'})
+        assert result == '-w -1'
+        assert '--output-latency-ms' not in result
+
+    def test_absent_key_suppresses_flag(self):
+        """Missing key → don't emit the flag."""
+        result = _append_output_latency_flag('-w -1', {})
+        assert result == '-w -1'
+
+    def test_none_args_auto(self):
+        """None args + 'auto' → empty string, no flag."""
+        assert _append_output_latency_flag(None, {'output_latency_ms': 'auto'}) == ''
+
+    def test_none_args_absent(self):
+        """None args + absent key → empty string."""
+        assert _append_output_latency_flag(None, {}) == ''
+
+
+class TestSubprocessArgvComposition:
+    """End-to-end check: the helper's output survives the AudioPlayer/
+    DmxPlayer run() loop that splits args on whitespace into argv.
+
+    Mirrors DmxPlayer.run() and AudioPlayer.run() — both do:
+        if self.args:
+            for arg in self.args.split():
+                process_call_list.append(arg)
+    """
+
+    @staticmethod
+    def _build_argv(path, args, extras):
+        """Replicates the shape of DmxPlayer.run() argv construction."""
+        call_list = [path]
+        if args:
+            for arg in args.split():
+                call_list.append(arg)
+        call_list.extend(extras)
+        return call_list
+
+    def test_audioplayer_argv_with_int_override(self):
+        """Full audio spawn argv should include --output-latency-ms 42."""
+        args = _append_output_latency_flag('-w -1', {'output_latency_ms': 42})
+        argv = self._build_argv('/usr/bin/cuems-audioplayer', args, [])
+        assert argv == ['/usr/bin/cuems-audioplayer', '-w', '-1',
+                        '--output-latency-ms', '42']
+
+    def test_audioplayer_argv_with_auto(self):
+        """With 'auto', audio spawn argv has no latency flag."""
+        args = _append_output_latency_flag('-w -1', {'output_latency_ms': 'auto'})
+        argv = self._build_argv('/usr/bin/cuems-audioplayer', args, [])
+        assert argv == ['/usr/bin/cuems-audioplayer', '-w', '-1']
+        assert '--output-latency-ms' not in argv
+
+    def test_dmxplayer_argv_with_int_empty_args(self):
+        """dmx spawn argv with empty <args/> + int must not carry 'None'."""
+        args = _append_output_latency_flag(None, {'output_latency_ms': 35})
+        argv = self._build_argv(
+            '/usr/bin/cuems-dmxplayer', args,
+            ['--port', '9000', '--uuid', 'abc'],
+        )
+        assert 'None' not in argv
+        assert '--output-latency-ms' in argv
+        assert argv[argv.index('--output-latency-ms') + 1] == '35'
+
+    def test_dmxplayer_argv_with_absent_key(self):
+        """dmx with absent output_latency_ms → binary's 35 ms default applies."""
+        args = _append_output_latency_flag(None, {})
+        argv = self._build_argv(
+            '/usr/bin/cuems-dmxplayer', args,
+            ['--port', '9000', '--uuid', 'abc'],
+        )
+        assert argv == ['/usr/bin/cuems-dmxplayer', '--port', '9000',
+                        '--uuid', 'abc']
diff --git a/tests/test_ossia.py b/tests/test_ossia.py
new file mode 100644
index 0000000..dd5cfd6
--- /dev/null
+++ b/tests/test_ossia.py
@@ -0,0 +1,293 @@
+from cuemsengine.osc.OssiaServer import OssiaServer
+from cuemsengine.osc.OssiaClient import OssiaClient
+
+from pyossia import ValueType
+
+from .fixtures import ossia_client_factory, ossia_server_factory
+from pytest import raises
+
+"""Logging testing functions"""
+def print_callback(node, value):
+    print(
+        f"Parameter changed at {node} to {value} [node value: {node.parameter.value}]"
+    )
+
+def test_client_empty_init(ossia_client_factory):
+    with ossia_client_factory() as client:
+        client.device = None
+        try:
+            client.set_node("/test")
+        except Exception as e:
+            assert type(e) == AttributeError
+            assert str(e) == "No device found"
+
+        client.device = "device"
+        try:
+            client.set_node("/test")
+        except Exception as e:
+            assert type(e) == AttributeError
+            assert str(e) == "'str' object has no attribute 'root_node'"
+
+def test_client_endpoint_str(ossia_client_factory):
+    with ossia_client_factory(endpoints = "No_endpoint") as client:
+        assert len(client.nodes) == 1
+        assert [i for i in client.nodes.keys()] == ["/"]
+        assert len(client.device.root_node.children()) == 0
+
+        try:
+            client.set_value("/test", 10)
+        except Exception as e:
+            assert type(e) == ValueError
+            assert str(e) == "Node not found"
+
+def test_client_failed_value(ossia_client_factory):
+    with ossia_client_factory(
+        endpoints = {"/test1": [ValueType.Int, None, None]}
+    ) as client:
+        assert len(client.nodes) == 2
+        assert "/test1" in client.nodes.keys()
+        with raises(ValueError) as e:
+            client.set_value("/test1", "no_int")
+        assert str(e.value) == "Could not set /test1 to no_int"
+        
+        client_node = client.get_node("/test1")
+        assert client_node.parameter.value == 0
+        with raises(ValueError) as e:
+            client.set_value(client_node, "no_int")
+        assert str(e.value) == "Could not set /test1 to no_int"
+
+        client.remove_node("/test1")
+        assert len(client.nodes) == 1
+        assert [i for i in client.nodes.keys()] == ["/"]
+        with raises(KeyError) as e:
+            client.get_node("/test1")
+        assert str(e.value) == "'/test1'"
+        
+        with raises(ValueError) as e:
+            client.set_value("/test1", 10)
+        assert str(e.value) == "Node not found"
+
+        with raises(ValueError) as e:
+            client.create_endpoint("/test1", [int, None, None])
+        assert str(e.value) == "value_type must be a pyossia.ValueType"
+
+        with raises(ValueError) as e:
+            client.create_endpoint("/test1", [ValueType.Int, lambda x, y, z: x+y+z, 10])
+        assert str(e.value) == "callback must have 1 or 2 parameters"
+
+def test_client_list_endpoints(ossia_client_factory):
+    endpoints = ["/test1", "/test2", "/test3"]
+    with ossia_client_factory(
+        endpoints = endpoints,
+        local_port = 9002
+    ) as client:
+        assert len(client.nodes) == 4
+        assert [i for i in client.nodes.keys()] == ["/", "/test1", "/test2", "/test3"]
+        assert len(client.device.root_node.children()) == 3
+
+def test_server_empty_init(ossia_server_factory):
+    with ossia_server_factory(
+        name = "test_server",
+        local_port = 9002
+    ) as server:
+        assert len(server.nodes) == 0
+        assert len(server.device.root_node.children()) == 0
+
+def test_server_failed_init(ossia_server_factory):
+    def server_callback(server):
+        return False
+    try:
+        with ossia_server_factory(server = server_callback) as server:
+            assert False
+    except Exception as e:
+        assert str(e) == "Server setup failed"
+
+def test_server_init(capfd, ossia_server_factory):
+    test_endpoints = {
+        "/test1": [ValueType.Int, print_callback, 10],
+        "/test2": [ValueType.Int, print_callback, 20],
+        "/test3": [ValueType.Int, print_callback, 30],
+        "/test4": [ValueType.Int, print_callback, 40],
+        "/test1/test1": [ValueType.Int, print_callback, 50],
+    }
+    with ossia_server_factory(
+        log = False,
+        endpoints = test_endpoints,
+        local_port = 9002
+    ) as server:
+        assert server.started == True
+        assert len(server.device.root_node.children()) == 4
+        out, err = capfd.readouterr()
+
+    assert "Parameter changed at" in out
+    assert len(out) > 0
+    assert len(err) == 0
+    out_lines = out.split("\n")
+    assert out_lines[-1] == ''
+    assert len(out_lines) == 6
+
+def test_client_init(capfd, ossia_client_factory):
+    def test_string(n, v):
+        return f"Parameter changed at /test{n} to {v} [node value: {v}]"
+    
+    test_endpoints = {
+        "/test1": [ValueType.Int, print_callback],
+        "/test2": [ValueType.Int, print_callback, 10],
+        "/test3": [ValueType.Int, print_callback, 20],
+        "/test4": [ValueType.Int, print_callback, 30]
+    }
+    with ossia_client_factory(
+        endpoints = test_endpoints,
+        local_port = 9095
+    ) as client:
+        assert len(client.device.root_node.children()) == 4
+        out, err = capfd.readouterr()
+
+    assert "Parameter changed at" in out
+    assert len(out) > 0
+    assert len(err) == 0
+    out_lines = out.split("\n")
+    assert len(out_lines) == 4
+    assert out_lines[0] == test_string(2, 10)
+    assert out_lines[1] == test_string(3, 20)
+    assert out_lines[2] == test_string(4, 30)
+    assert out_lines[3] == ''
+
+class store_response():
+        def __init__(self):
+            self.response = []
+        
+        def set(self, value):
+            self.response.append(value)
+
+def test_osc_client_to_server_transmission():
+    # ARRANGE
+    from time import sleep
+    server_res = store_response()
+    server_endpoints = {
+        "/test": [ValueType.Int, server_res.set, 30],
+    }
+    client_res = store_response()
+    client_endpoints = {
+        "/test": [ValueType.Int, client_res.set, 10],
+    }
+    LOCAL_PORT = 9191
+    COMMON_PORT = 9292
+
+    # ACT
+    server = OssiaServer(
+        endpoints=server_endpoints,
+        remote_port = COMMON_PORT
+    )
+    sleep(0.5)
+    client = OssiaClient(
+        endpoints = client_endpoints,
+        remote_port = COMMON_PORT,
+        local_port = LOCAL_PORT
+    )
+    sleep(0.5)
+    # ASSERT
+    ## Check that the server started with default values
+    assert server.started == True
+    assert client_res.response[0] == 10
+    assert server_res.response[0] == 30
+    # assert server_res.response[1] == 10
+    ## Check that client alters server values
+    client.set_value("/test", 20)
+    assert client_res.response[1] == 20
+    sleep(0.5)
+    # assert server_res.response[2] == 20
+    ## Check that server does not alter client values
+    server.set_value("/test", 40)
+    sleep(0.5)
+    assert server_res.response[1] == 40
+    assert len(client_res.response) == 2
+
+def test_oscclient_in_separate_process(process_cleanup):
+    # ARRANGE
+    from multiprocessing import Process, Queue
+    from time import sleep
+    from cuemsengine.osc.helpers import ClientDevices
+
+    client_res = Queue()
+    LOCAL = 9094
+    REMOTE = 9994
+
+    # Create OssiaClient in separate process
+    def run_client(result_queue):
+        client = OssiaClient(
+            endpoints = {"/test": [ValueType.Int, lambda x: result_queue.put(x), 10]},
+            remote_type = ClientDevices.OSC,
+            local_port = LOCAL,
+            remote_port = REMOTE
+        )
+        sleep(0.5)  # Allow time for setup
+        client.set_value("/test", 80)
+        sleep(0.5)  # Allow time for value to be set
+
+    client_process = process_cleanup(Process(target=run_client, args=(client_res,)))
+    client_process.start()
+
+    # ASSERT
+    # Wait for the process to complete
+    client_process.join(timeout=2)
+
+    # Check if the value was set correctly
+    assert not client_res.empty(), "No value was set in the client"
+    assert client_res.get() == 10, "Initial value was not set to 10"
+    assert client_res.get() == 80, "Modified value was not set to 80"
+
+    # Cleanup (handled by process_cleanup, but ensure it's terminated)
+    if client_process.is_alive():
+        client_process.terminate()
+
+def test_server_node_removal_affects_children():
+    # ARRANGE
+    from cuemsengine.osc.OssiaServer import OssiaServer
+    from cuemsengine.osc.helpers import ServerDevices
+    from time import sleep
+
+    server = OssiaServer(
+        endpoints = {
+            "/test": [ValueType.Int, print_callback, 10],
+            "/test/test1": [ValueType.Int, print_callback, 20],
+            "/test/test2": [ValueType.Int, print_callback, 30],
+        },
+        local_port = 9002
+    )
+    sleep(0.5)
+    assert len(server.device.root_node.children()) == 1
+    test_node = server.get_node("/test")
+    assert len(test_node.children()) == 2
+    server.device.root_node.remove_child("test")
+    assert len(server.device.root_node.children()) == 0
+
+def test_server_node_removal_affects_all_children():
+    # ARRANGE
+    from cuemsengine.osc.OssiaServer import OssiaServer
+    from cuemsengine.osc.helpers import ServerDevices
+    from time import sleep
+
+    server = OssiaServer(
+        endpoints = {
+            "/test1": [ValueType.Int, print_callback, 20],
+            "/testout": [ValueType.Int, print_callback, 20],
+            "/test1/test22": [ValueType.Int, print_callback, 30],
+            "/test1/test2/test3": [ValueType.Int, print_callback, 30],
+            "/test1/test2/test3/test4": [ValueType.Int, print_callback, 30],
+        },
+        local_port = 9002
+    )
+    sleep(0.5)
+    assert len(server.device.root_node.children()) == 2
+    test_node = server.get_node("/test1")
+    assert len(test_node.children()) == 2
+    server.device.root_node.remove_child("/test1/test2")
+    assert len(test_node.children()) == 1
+    assert len(server.device.root_node.children()) == 2
+
+    test_node = server.get_node("/test1/test22")
+    assert len(test_node.children()) == 0
+    
+    server.remove_node("/test1")
+    assert len(server.device.root_node.children()) == 1
diff --git a/tests/test_ossia_bundle_support.py b/tests/test_ossia_bundle_support.py
new file mode 100644
index 0000000..54c204b
--- /dev/null
+++ b/tests/test_ossia_bundle_support.py
@@ -0,0 +1,268 @@
+#!/usr/bin/env python3
+"""Test script to check if pyossia supports OSC bundle sending.
+
+This test will help determine if we can eliminate DmxOscClient
+and use pyossia's native bundle support instead.
+"""
+
+import sys
+import time
+
+try:
+    from pyossia import ossia
+    OSSIA_AVAILABLE = True
+except ImportError as e:
+    print(f"⚠️  Import error: {e}")
+    print("\nAttempting to inspect pyossia module structure despite import error...")
+    OSSIA_AVAILABLE = False
+    ossia = None
+    
+    # Try to inspect the pyossia package structure
+    try:
+        import pyossia
+        print(f"\n✅ pyossia package found: {pyossia}")
+        print(f"   Package location: {pyossia.__file__}")
+        print(f"   Package attributes: {[a for a in dir(pyossia) if not a.startswith('_')]}")
+        
+        # Try to see if we can access the module directly
+        import importlib
+        try:
+            ossia_module = importlib.import_module('pyossia.ossia_python')
+            print(f"\n✅ ossia_python module found: {ossia_module}")
+            print(f"   Module attributes: {[a for a in dir(ossia_module) if not a.startswith('_')][:30]}")
+            
+            # Check for bundle-related items
+            bundle_items = [a for a in dir(ossia_module) if 'bundle' in a.lower()]
+            if bundle_items:
+                print(f"   ✅ Bundle-related items found: {bundle_items}")
+            else:
+                print(f"   ❌ No bundle-related items found")
+        except Exception as e2:
+            print(f"\n❌ Could not import ossia_python: {e2}")
+    except Exception as e3:
+        print(f"❌ Could not inspect pyossia package: {e3}")
+
+def test_basic_ossia():
+    """Test basic pyossia functionality."""
+    print("=" * 60)
+    print("TEST 1: Basic pyossia device creation")
+    print("=" * 60)
+    
+    if not OSSIA_AVAILABLE:
+        print("❌ Cannot run test: pyossia import failed")
+        return None
+    
+    try:
+        # Create a local device
+        device = ossia.LocalDevice("test_device")
+        print("✅ LocalDevice created successfully")
+        
+        # Create some nodes
+        root = device.root_node
+        print(f"✅ Root node: {root}")
+        
+        # List available methods
+        print("\nAvailable device methods:")
+        methods = [m for m in dir(device) if not m.startswith('_')]
+        for m in methods[:20]:  # Show first 20
+            print(f"  - {m}")
+        
+        return device
+    except Exception as e:
+        print(f"❌ Error: {e}")
+        return None
+
+def test_osc_protocol():
+    """Test OSC protocol and look for bundle methods."""
+    print("\n" + "=" * 60)
+    print("TEST 2: OSC Protocol and Bundle Support")
+    print("=" * 60)
+    
+    if not OSSIA_AVAILABLE:
+        print("❌ Cannot run test: pyossia import failed")
+        return None
+    
+    try:
+        # Create OSC device with unique ports
+        device = ossia.OSCDevice("test_osc", "127.0.0.1", 19996, 19997)
+        print("✅ OSCDevice created successfully")
+        
+        # Try to get the protocol
+        print("\nAvailable OSCDevice methods:")
+        methods = [m for m in dir(device) if not m.startswith('_')]
+        for m in methods:
+            print(f"  - {m}")
+        
+        # Check if there's a protocol attribute or method
+        if hasattr(device, 'protocol'):
+            proto = device.protocol
+            print(f"\n✅ Protocol attribute found: {proto}")
+            print("\nProtocol methods:")
+            proto_methods = [m for m in dir(proto) if not m.startswith('_')]
+            for m in proto_methods:
+                print(f"  - {m}")
+        else:
+            print("\n❌ No 'protocol' attribute found on OSCDevice")
+        
+        # Look for bundle-related methods
+        bundle_methods = [m for m in dir(device) if 'bundle' in m.lower() or 'push' in m.lower()]
+        if bundle_methods:
+            print(f"\n✅ Bundle/push methods found: {bundle_methods}")
+        else:
+            print("\n❌ No bundle/push methods found on OSCDevice")
+        
+        return device
+    except Exception as e:
+        print(f"❌ Error: {e}")
+        import traceback
+        traceback.print_exc()
+        return None
+
+def test_parameter_bundle():
+    """Test if we can send multiple parameters as a bundle."""
+    print("\n" + "=" * 60)
+    print("TEST 3: Parameter Bundle Test")
+    print("=" * 60)
+    
+    if not OSSIA_AVAILABLE:
+        print("❌ Cannot run test: pyossia import failed")
+        return None, None
+    
+    try:
+        # Create sender and receiver with unique ports
+        sender = ossia.OSCDevice("sender", "127.0.0.1", 19998, 19999)
+        receiver = ossia.OSCDevice("receiver", "127.0.0.1", 19999, 19998)
+        
+        time.sleep(0.5)  # Wait for setup
+        
+        # Create parameters on receiver
+        root = receiver.root_node
+        param1 = root.create_child("param1")
+        p1 = param1.create_parameter(ossia.ValueType.Float)
+        
+        param2 = root.create_child("param2")
+        p2 = param2.create_parameter(ossia.ValueType.Float)
+        
+        param3 = root.create_child("param3")
+        p3 = param3.create_parameter(ossia.ValueType.String)
+        
+        print("✅ Created 3 parameters on receiver")
+        
+        # Try to find bundle sending capability
+        print("\nLooking for bundle methods on sender...")
+        
+        # Check various possible bundle methods
+        possible_methods = [
+            'push_bundle',
+            'send_bundle', 
+            'push_raw_bundle',
+            'send_raw_bundle',
+            'bundle'
+        ]
+        
+        found_methods = []
+        for method_name in possible_methods:
+            if hasattr(sender, method_name):
+                found_methods.append(method_name)
+                print(f"  ✅ Found: {method_name}")
+        
+        if not found_methods:
+            print("  ❌ No bundle methods found")
+            print("\n  Attempting to inspect underlying protocol...")
+            
+            # Try to access underlying protocol implementation
+            for attr in dir(sender):
+                obj = getattr(sender, attr)
+                if hasattr(obj, 'push_bundle') or hasattr(obj, 'send_bundle'):
+                    print(f"  ✅ Found bundle method on {attr}: {obj}")
+                    
+        return sender, receiver
+        
+    except Exception as e:
+        print(f"❌ Error: {e}")
+        import traceback
+        traceback.print_exc()
+        return None, None
+
+def test_libossia_bundle_element():
+    """Test if ossia.bundle_element is available."""
+    print("\n" + "=" * 60)
+    print("TEST 4: ossia.bundle_element Check")
+    print("=" * 60)
+    
+    if not OSSIA_AVAILABLE:
+        print("❌ Cannot run test: pyossia import failed")
+        return
+    
+    try:
+        # Check if bundle_element exists in ossia module
+        if hasattr(ossia, 'bundle_element'):
+            print("✅ ossia.bundle_element found!")
+            bundle_elem = ossia.bundle_element
+            print(f"   Type: {type(bundle_elem)}")
+            print(f"   Available attributes: {[a for a in dir(bundle_elem) if not a.startswith('_')]}")
+        else:
+            print("❌ ossia.bundle_element not found")
+            
+        # Check what's available in ossia module
+        print("\nSearching for 'bundle' in ossia module...")
+        bundle_related = [item for item in dir(ossia) if 'bundle' in item.lower()]
+        if bundle_related:
+            print(f"✅ Found: {bundle_related}")
+        else:
+            print("❌ No bundle-related items found")
+            
+    except Exception as e:
+        print(f"❌ Error: {e}")
+        import traceback
+        traceback.print_exc()
+
+def main():
+    """Run all tests."""
+    print("\n" + "🔬 " * 20)
+    print("PYOSSIA BUNDLE SUPPORT TEST")
+    print("🔬 " * 20 + "\n")
+    
+    # Run tests
+    device = test_basic_ossia()
+    osc_device = test_osc_protocol()
+    sender, receiver = test_parameter_bundle()
+    test_libossia_bundle_element()
+    
+    # Summary
+    print("\n" + "=" * 60)
+    print("SUMMARY & RECOMMENDATIONS")
+    print("=" * 60)
+    
+    print("""
+Based on the test results above:
+
+1. If bundle methods are found:
+   → We can remove DmxOscClient and use native pyossia bundles
+   → This will allow DMX bundles to be sent through OSCQuery
+   
+2. If NO bundle methods are found:
+   → Keep DmxOscClient for bundle creation
+   → Use OSCQuery for node routing/discovery
+   → Use DmxOscClient for actual bundle transmission
+   
+3. Alternative approach:
+   → Register a single OSCQuery endpoint like /dmxplayer/scene
+   → That endpoint accepts serialized scene data
+   → The endpoint handler reconstructs and sends the bundle locally
+    """)
+    
+    print("\n✅ Test complete!")
+
+if __name__ == "__main__":
+    try:
+        main()
+    except KeyboardInterrupt:
+        print("\n\n⚠️  Test interrupted by user")
+        sys.exit(0)
+    except Exception as e:
+        print(f"\n\n❌ Fatal error: {e}")
+        import traceback
+        traceback.print_exc()
+        sys.exit(1)
+
diff --git a/tests/test_ossia_queue.py b/tests/test_ossia_queue.py
new file mode 100644
index 0000000..02d8959
--- /dev/null
+++ b/tests/test_ossia_queue.py
@@ -0,0 +1,317 @@
+from pyossia import GlobalMessageQueue, ValueType
+from threading import Event
+from time import sleep
+from unittest.mock import Mock, patch, MagicMock
+
+from cuemsengine.osc.OssiaServer import OssiaServer
+from cuemsengine.osc.OssiaClient import OssiaClient
+from cuemsengine.comms.NodeCommunications import NodeCommunications
+from cuemsengine.osc.helpers import ServerDevices, ClientDevices
+
+from .fixtures import ossia_client_factory, ossia_server_factory
+from .helpers import timeout
+
+
+def test_global_message_queue_receives_commands(ossia_server_factory, ossia_client_factory):
+    """Test that GlobalMessageQueue receives command messages from ControllerEngine"""
+    # ARRANGE
+    SERVER_LOCAL = 9500
+    SERVER_REMOTE = 9600
+    CLIENT_LOCAL = 9501
+    
+    received_commands = []
+    command_event = Event()
+    
+    def command_callback(value):
+        received_commands.append(value)
+        command_event.set()
+    
+    commands_dict = {
+        'load': command_callback,
+        'gocue': command_callback
+    }
+    
+    # Create server (ControllerEngine-like)
+    with ossia_server_factory(
+        name="TestControllerServer",
+        endpoints={
+            '/engine/command/load': [ValueType.String, None, ''],
+            '/engine/command/gocue': [ValueType.String, None, '']
+        },
+        local_port=SERVER_LOCAL,
+        remote_port=SERVER_REMOTE,
+        server=ServerDevices.OSCQUERY
+    ) as server:
+        sleep(0.5)  # Allow server to start
+        
+        # Create client (NodeEngine-like)
+        with ossia_client_factory(
+            endpoints={},
+            remote_type=ClientDevices.OSCQUERY,
+            local_port=CLIENT_LOCAL,
+            remote_port=SERVER_REMOTE
+        ) as client:
+            sleep(0.5)  # Allow client to connect
+            
+            # Create GlobalMessageQueue and NodeCommunications
+            with patch('cuemsengine.comms.NodeCommunications.NodesHub'):
+                with patch('cuemsengine.comms.NodeCommunications.PLAYER_HANDLER'):
+                    node_comm = NodeCommunications(
+                        hub_address="tcp://127.0.0.1:5555",
+                        commands_dict=commands_dict,
+                        node_id="test_node"
+                    )
+                    node_comm.start_oscquery_queue(client)
+                    
+                    # Start queue loop in background
+                    from threading import Thread
+                    stop_event = Event()
+                    
+                    def queue_loop():
+                        while not stop_event.is_set():
+                            message = node_comm.oscquery_queue.pop()
+                            if message is not None:
+                                parameter, value = message
+                                node_comm.route_message(parameter, value)
+                            else:
+                                sleep(0.001)
+                    
+                    queue_thread = Thread(target=queue_loop, daemon=True)
+                    queue_thread.start()
+                    
+                    sleep(0.5)  # Allow queue loop to start
+                    
+                    # ACT: Write values from server
+                    server.set_value('/engine/command/load', 'test_project')
+                    sleep(0.2)
+                    
+                    server.set_value('/engine/command/gocue', 'cue_123')
+                    sleep(0.2)
+                    
+                    # Wait for commands to be received
+                    command_event.wait(timeout=2)
+                    
+                    # Stop queue loop
+                    stop_event.set()
+                    queue_thread.join(timeout=1)
+    
+    # ASSERT
+    assert len(received_commands) >= 2, f"Expected at least 2 commands, got {len(received_commands)}"
+    assert 'test_project' in received_commands, "load command not received"
+    assert 'cue_123' in received_commands, "gocue command not received"
+
+
+def test_global_message_queue_filters_players_by_node_id(ossia_server_factory, ossia_client_factory):
+    """Test that GlobalMessageQueue filters player messages by node_id"""
+    # ARRANGE
+    SERVER_LOCAL = 9502
+    SERVER_REMOTE = 9602
+    CLIENT_LOCAL = 9503
+    
+    node_id = "node_123"
+    other_node_id = "node_456"
+    
+    received_video_messages = []
+    received_audio_messages = []
+    received_dmx_messages = []
+    
+    mock_player_handler = MagicMock()
+    
+    def mock_route_video(path_elements, value):
+        received_video_messages.append((path_elements, value))
+    
+    def mock_route_audio(path_elements, value):
+        received_audio_messages.append((path_elements, value))
+    
+    def mock_route_dmx(path_elements, value):
+        received_dmx_messages.append((path_elements, value))
+    
+    mock_player_handler.route_video_message = mock_route_video
+    mock_player_handler.route_audio_message = mock_route_audio
+    mock_player_handler.route_dmx_message = mock_route_dmx
+    
+    def player_path(node_id: str, player_type: str) -> str:
+        return f'/engine/players/{node_id}/{player_type}/test/path'
+
+    # Create server (ControllerEngine-like)
+    with ossia_server_factory(
+        name="TestControllerServer",
+        endpoints={
+            player_path(node_id, 'video'): [ValueType.Float, None, 0.0],
+            player_path(node_id, 'audio'): [ValueType.Float, None, 0.0],
+            player_path(node_id, 'dmx'): [ValueType.Int, None, 0],
+            player_path(other_node_id, 'video'): [ValueType.Float, None, 0.0],
+        },
+        local_port=SERVER_LOCAL,
+        remote_port=SERVER_REMOTE,
+        server=ServerDevices.OSCQUERY
+    ) as server:
+        sleep(0.5)  # Allow server to start
+        
+        # Create client (NodeEngine-like)
+        with ossia_client_factory(
+            endpoints={},
+            remote_type=ClientDevices.OSCQUERY,
+            local_port=CLIENT_LOCAL,
+            remote_port=SERVER_REMOTE
+        ) as client:
+            sleep(0.5)  # Allow client to connect
+            
+            # Create GlobalMessageQueue and NodeCommunications
+            with patch('cuemsengine.comms.NodeCommunications.NodesHub'):
+                with patch('cuemsengine.comms.NodeCommunications.PLAYER_HANDLER', mock_player_handler):
+                    node_comm = NodeCommunications(
+                        hub_address="tcp://127.0.0.1:5555",
+                        commands_dict={},
+                        node_id=node_id
+                    )
+                    node_comm.start_oscquery_queue(client)
+                    
+                    # Start queue loop in background
+                    from threading import Thread
+                    stop_event = Event()
+                    
+                    def queue_loop():
+                        while not stop_event.is_set():
+                            message = node_comm.oscquery_queue.pop()
+                            if message is not None:
+                                parameter, value = message
+                                node_comm.route_message(parameter, value)
+                            else:
+                                sleep(0.001)
+                    
+                    queue_thread = Thread(target=queue_loop, daemon=True)
+                    queue_thread.start()
+                    
+                    sleep(0.5)  # Allow queue loop to start
+                    
+                    # ACT: Write values from server
+                    # Write to this node's players (should be received)
+                    server.set_value(player_path(node_id, 'video'), 0.5)
+                    sleep(0.2)
+                    
+                    server.set_value(player_path(node_id, 'audio'), 0.75)
+                    sleep(0.2)
+                    
+                    server.set_value(player_path(node_id, 'dmx'), 255)
+                    sleep(0.2)
+                    
+                    # # Write to other node's players (should be filtered out)
+                    # server.set_value(player_path(other_node_id, 'video'), 0.9)
+                    # sleep(0.2)
+                    
+                    # Stop queue loop
+                    stop_event.set()
+                    queue_thread.join(timeout=1)
+    
+    # ASSERT
+    # Should receive messages for this node
+    assert len(received_video_messages) >= 1, f"Expected video message, got {len(received_video_messages)}"
+    assert len(received_audio_messages) >= 1, f"Expected audio message, got {len(received_audio_messages)}"
+    assert len(received_dmx_messages) >= 1, f"Expected DMX message, got {len(received_dmx_messages)}"
+    
+    # Verify video message content
+    video_path, video_value = received_video_messages[0]
+    assert video_value == 0.5, f"Expected video value 0.5, got {video_value}"
+    assert 'test' in video_path and 'path' in video_path, f"Video path incorrect: {video_path}"
+    
+    # Verify audio message content
+    audio_path, audio_value = received_audio_messages[0]
+    assert audio_value == 0.75, f"Expected audio value 0.75, got {audio_value}"
+    
+    # Verify DMX message content
+    dmx_path, dmx_value = received_dmx_messages[0]
+    assert dmx_value == 255, f"Expected DMX value 255, got {dmx_value}"
+    
+    # Verify other node's messages were filtered (not in received lists)
+    # The other node's video message should not appear in received_video_messages
+    other_node_video_found = any(
+        path == ['test', 'path'] and value == 0.9
+        for path, value in received_video_messages
+    )
+    assert not other_node_video_found, "Other node's video message should be filtered out"
+
+
+def test_global_message_queue_ignores_unused_paths(ossia_server_factory, ossia_client_factory):
+    """Test that GlobalMessageQueue ignores paths that don't match command or players patterns"""
+    # ARRANGE
+    SERVER_LOCAL = 9504
+    SERVER_REMOTE = 9604
+    CLIENT_LOCAL = 9505
+    
+    received_commands = []
+    commands_dict = {
+        'load': lambda v: received_commands.append(v)
+    }
+    
+    # Create server (ControllerEngine-like)
+    with ossia_server_factory(
+        name="TestControllerServer",
+        endpoints={
+            '/engine/command/load': [ValueType.String, None, ''],
+            '/engine/status/running': [ValueType.String, None, 'no'],
+            '/unused/path': [ValueType.String, None, '']
+        },
+        local_port=SERVER_LOCAL,
+        remote_port=SERVER_REMOTE,
+        server=ServerDevices.OSCQUERY
+    ) as server:
+        sleep(0.5)  # Allow server to start
+        
+        # Create client (NodeEngine-like)
+        with ossia_client_factory(
+            endpoints={},
+            remote_type=ClientDevices.OSCQUERY,
+            local_port=CLIENT_LOCAL,
+            remote_port=SERVER_REMOTE
+        ) as client:
+            sleep(0.5)  # Allow client to connect
+            
+            # Create GlobalMessageQueue and NodeCommunications
+            with patch('cuemsengine.comms.NodeCommunications.NodesHub'):
+                with patch('cuemsengine.comms.NodeCommunications.PLAYER_HANDLER'):
+                    node_comm = NodeCommunications(
+                        hub_address="tcp://127.0.0.1:5555",
+                        commands_dict=commands_dict,
+                        node_id="test_node"
+                    )
+                    node_comm.start_oscquery_queue(client)
+                    
+                    # Start queue loop in background
+                    from threading import Thread
+                    stop_event = Event()
+                    
+                    def queue_loop():
+                        while not stop_event.is_set():
+                            message = node_comm.oscquery_queue.pop()
+                            if message is not None:
+                                parameter, value = message
+                                node_comm.route_message(parameter, value)
+                            else:
+                                sleep(0.001)
+                    
+                    queue_thread = Thread(target=queue_loop, daemon=True)
+                    queue_thread.start()
+                    
+                    sleep(0.5)  # Allow queue loop to start
+                    
+                    # ACT: Write values from server
+                    # This should be received
+                    server.set_value('/engine/command/load', 'test_project')
+                    sleep(0.2)
+                    
+                    # These should be ignored
+                    server.set_value('/engine/status/running', 'yes')
+                    sleep(0.2)
+                    
+                    server.set_value('/unused/path', 'value')
+                    sleep(0.2)
+                    
+                    # Stop queue loop
+                    stop_event.set()
+                    queue_thread.join(timeout=1)
+    
+    # ASSERT
+    # Status and unused paths should not trigger commands
+    assert len(received_commands) == 1, f"Expected only 1 command, got {len(received_commands)}"
+    assert 'test_project' in received_commands, "load command not received"
diff --git a/tests/test_players_audiomixer.py b/tests/test_players_audiomixer.py
new file mode 100644
index 0000000..b0348f6
--- /dev/null
+++ b/tests/test_players_audiomixer.py
@@ -0,0 +1,612 @@
+import pytest
+from unittest.mock import Mock, patch, MagicMock, call
+from cuemsengine.players.AudioMixer import (
+    AudioMixer, 
+    MixerClient, 
+    build_mixer_osc_endpoints,
+    start_audio_mixer
+)
+from cuemsengine.players.JackConnectionManager import JackConnectionManager
+
+
+class TestAudioMixer:
+    """Test cases for AudioMixer class."""
+    
+    @pytest.fixture
+    def mock_audio_outputs(self):
+        """Mock audio outputs configuration."""
+        return [
+            {'name': 'output_1', 'channels': 2},
+            {'name': 'output_2', 'channels': 2}
+        ]
+    
+    @pytest.fixture
+    def mock_conn_manager(self):
+        """Mock JackConnectionManager."""
+        with patch('cuemsengine.players.AudioMixer.JackConnectionManager') as mock_conn:
+            mock_instance = Mock()
+            mock_instance.get_ports.return_value = ['system:playback_1', 'system:playback_2']
+            mock_instance.connect_by_name.return_value = True
+            mock_conn.return_value = mock_instance
+            yield mock_instance
+    
+    @pytest.fixture
+    def audio_mixer(self, mock_audio_outputs, mock_conn_manager):
+        """Create AudioMixer instance for testing."""
+        with patch('cuemsengine.players.AudioMixer.sleep'), \
+             patch.object(AudioMixer, 'call_subprocess'), \
+             patch.object(AudioMixer, 'start'):  # Mock the start method to avoid thread issues
+            mixer = AudioMixer(
+                audio_outputs=mock_audio_outputs,
+                port=8000,
+                node_uuid='test-node-123',
+                path='/usr/local/bin/jack-volume'
+            )
+            return mixer
+    
+    def test_audio_mixer_initialization(self, mock_audio_outputs, mock_conn_manager):
+        """Test AudioMixer initialization."""
+        with patch('cuemsengine.players.AudioMixer.sleep'), \
+             patch.object(AudioMixer, 'call_subprocess'):
+            
+            mixer = AudioMixer(
+                audio_outputs=mock_audio_outputs,
+                port=8000,
+                node_uuid='test-node-123'
+            )
+            
+            assert mixer.node_uuid == 'test-node-123'
+            assert mixer.port == 8000
+            assert mixer.channel_number == 2
+            assert mixer.client_name == 'test-node-123_mixer'
+            assert mixer.path == '/usr/local/bin/jack-volume'
+            assert mixer.args == ['-c', 'test-node-123_mixer', '-p', '8000', '-n', '2']
+    
+    def test_audio_mixer_initialization_with_custom_path(self, mock_audio_outputs, mock_conn_manager):
+        """Test AudioMixer initialization with custom jack-volume path."""
+        with patch('cuemsengine.players.AudioMixer.sleep'), \
+             patch.object(AudioMixer, 'call_subprocess'):
+            
+            mixer = AudioMixer(
+                audio_outputs=mock_audio_outputs,
+                port=8000,
+                node_uuid='test-node-123',
+                path='/custom/path/jack-volume'
+            )
+            
+            assert mixer.path == '/custom/path/jack-volume'
+    
+    def test_run_method(self, audio_mixer):
+        """Test the run method starts jack-volume subprocess."""
+        with patch.object(audio_mixer, 'call_subprocess') as mock_call:
+            audio_mixer.run()
+            
+            expected_args = ['/usr/local/bin/jack-volume', '-c', 'test-node-123_mixer', '-p', '8000', '-n', '2']
+            mock_call.assert_called_once_with(expected_args)
+    
+    def test_connect_to_jack(self, audio_mixer, mock_conn_manager):
+        """Test JACK port connections."""
+        audio_mixer.connect_to_jack()
+        
+        # Should connect 2 channels to system playback ports
+        expected_calls = [
+            (('test-node-123_mixer:output_1', 'system:playback_1'),),
+            (('test-node-123_mixer:output_2', 'system:playback_2'),)
+        ]
+        mock_conn_manager.connect_by_name.assert_has_calls(expected_calls)
+    
+    def test_connect_player_to_mixer(self, audio_mixer, mock_conn_manager):
+        """Test connecting a player to mixer input channel."""
+        # Mock existing connections that need to be disconnected
+        mock_conn_manager.get_connections.side_effect = [
+            ['system:playback_1'],  # left output connections
+            ['system:playback_2']   # right output connections
+        ]
+        
+        audio_mixer.connect_player_to_mixer('test_player', 'output', 0)
+        
+        # Should first disconnect existing connections, then connect to mixer
+        expected_disconnect_calls = [
+            (('test_player:output_0', 'system:playback_1'),),
+            (('test_player:output_1', 'system:playback_2'),)
+        ]
+        expected_connect_calls = [
+            (('test_player:output_0', 'test-node-123_mixer:input_1'),),
+            (('test_player:output_1', 'test-node-123_mixer:input_2'),)
+        ]
+        
+        # Check disconnect calls
+        disconnect_calls = [call for call in mock_conn_manager.disconnect_by_name.call_args_list 
+                           if call[0][0].startswith('test_player:output')]
+        assert len(disconnect_calls) == 2
+        
+        # Check connect calls
+        connect_calls = [call for call in mock_conn_manager.connect_by_name.call_args_list 
+                        if call[0][0].startswith('test_player:output')]
+        assert len(connect_calls) == 2
+    
+    def test_connect_player_to_mixer_invalid_channel(self, audio_mixer, mock_conn_manager):
+        """Test connecting player to invalid mixer channel."""
+        # Reset the mock to clear previous calls from initialization
+        mock_conn_manager.connect_by_name.reset_mock()
+        
+        audio_mixer.connect_player_to_mixer('test_player', 'output', 5)  # Invalid channel
+        
+        # Should not make any connections for invalid channel
+        mock_conn_manager.connect_by_name.assert_not_called()
+    
+    def test_connect_player_to_mixer_stereo_mapping(self, audio_mixer, mock_conn_manager):
+        """Test stereo channel mapping for different mixer channels."""
+        # Mock no existing connections
+        mock_conn_manager.get_connections.return_value = []
+        
+        # Test channel 1 (should map to inputs 3,4)
+        audio_mixer.connect_player_to_mixer('test_player', 'output', 1)
+        
+        # Should connect to inputs 3,4 (channel 1 * 2 + 1 = 3, channel 1 * 2 + 2 = 4)
+        expected_connect_calls = [
+            (('test_player:output_0', 'test-node-123_mixer:input_3'),),
+            (('test_player:output_1', 'test-node-123_mixer:input_4'),)
+        ]
+        
+        # Check that connect was called with correct inputs
+        connect_calls = [call for call in mock_conn_manager.connect_by_name.call_args_list 
+                        if call[0][0].startswith('test_player:output')]
+        assert len(connect_calls) == 2
+    
+    def test_connect_player_to_mixer_disconnects_existing(self, audio_mixer, mock_conn_manager):
+        """Test that existing connections are properly disconnected."""
+        # Mock existing connections
+        mock_conn_manager.get_connections.side_effect = [
+            ['system:playback_1', 'other:input'],  # left output has multiple connections
+            ['system:playback_2']                  # right output has one connection
+        ]
+        
+        audio_mixer.connect_player_to_mixer('test_player', 'output', 0)
+        
+        # Should disconnect all existing connections
+        disconnect_calls = mock_conn_manager.disconnect_by_name.call_args_list
+        assert len(disconnect_calls) == 3  # 2 from left, 1 from right
+        
+        # Verify specific disconnections
+        left_disconnects = [call for call in disconnect_calls if call[0][0] == 'test_player:output_0']
+        right_disconnects = [call for call in disconnect_calls if call[0][0] == 'test_player:output_1']
+        
+        assert len(left_disconnects) == 2
+        assert len(right_disconnects) == 1
+        
+        # Verify connections to mixer were made
+        connect_calls = [call for call in mock_conn_manager.connect_by_name.call_args_list 
+                        if call[0][0].startswith('test_player:output')]
+        assert len(connect_calls) == 2
+
+
+class TestPlayerConnectionsCorrect:
+    """Pin the routing equivalence between player_connections_correct and
+    connect_player_to_outputs. If connect_player_to_outputs is refactored
+    and these diverge, run_audioCue will silently choose the wrong branch
+    on every GO."""
+
+    @staticmethod
+    def _build_mixer(audio_outputs, conn_man):
+        """Create a minimal AudioMixer with only the attributes that
+        player_connections_correct touches. Bypasses __init__ to avoid
+        the broken legacy test fixtures and any subprocess wiring."""
+        m = AudioMixer.__new__(AudioMixer)
+        m.conn_man = conn_man
+        m.audio_outputs = audio_outputs
+        m.client_name = 'test_mixer'
+        return m
+
+    @staticmethod
+    def _make_conn_man(existing_ports, edges):
+        """edges: dict[source_port] -> list[destination_port]."""
+        cm = Mock()
+        cm.port_exists.side_effect = lambda p: p in existing_ports
+        cm.is_connected.side_effect = lambda src, dst: dst in edges.get(src, [])
+        return cm
+
+    def test_stereo_all_edges_correct_returns_true(self):
+        cm = self._make_conn_man(
+            existing_ports={
+                'Audio_Player-X:outport 0',
+                'Audio_Player-X:outport 1',
+                'test_mixer:input_1',
+                'test_mixer:input_2',
+            },
+            edges={
+                'Audio_Player-X:outport 0': ['test_mixer:input_1'],
+                'Audio_Player-X:outport 1': ['test_mixer:input_2'],
+            },
+        )
+        m = self._build_mixer(['system:playback_1', 'system:playback_2'], cm)
+        assert m.player_connections_correct(
+            'Audio_Player-X', 'outport',
+            ['system:playback_1', 'system:playback_2'],
+        ) is True
+
+    def test_stereo_one_edge_missing_returns_false(self):
+        cm = self._make_conn_man(
+            existing_ports={
+                'Audio_Player-X:outport 0',
+                'Audio_Player-X:outport 1',
+                'test_mixer:input_1',
+                'test_mixer:input_2',
+            },
+            edges={
+                'Audio_Player-X:outport 0': ['test_mixer:input_1'],
+                # outport 1 not connected
+            },
+        )
+        m = self._build_mixer(['system:playback_1', 'system:playback_2'], cm)
+        assert m.player_connections_correct(
+            'Audio_Player-X', 'outport',
+            ['system:playback_1', 'system:playback_2'],
+        ) is False
+
+    def test_stereo_wrong_destination_returns_false(self):
+        cm = self._make_conn_man(
+            existing_ports={
+                'Audio_Player-X:outport 0',
+                'Audio_Player-X:outport 1',
+                'test_mixer:input_1',
+                'test_mixer:input_2',
+            },
+            edges={
+                'Audio_Player-X:outport 0': ['test_mixer:input_1'],
+                'Audio_Player-X:outport 1': ['test_mixer:input_3'],  # wrong
+            },
+        )
+        m = self._build_mixer(['system:playback_1', 'system:playback_2'], cm)
+        assert m.player_connections_correct(
+            'Audio_Player-X', 'outport',
+            ['system:playback_1', 'system:playback_2'],
+        ) is False
+
+    def test_mono_uses_outport_0_for_both_pair_members(self):
+        # Mono player: outport 1 absent. connect_player_to_outputs wires
+        # outport 0 to both input_1 and input_2 (centred mono). The check
+        # must agree.
+        cm = self._make_conn_man(
+            existing_ports={
+                'Audio_Player-X:outport 0',
+                # NOTE: no 'outport 1' → is_stereo=False
+                'test_mixer:input_1',
+                'test_mixer:input_2',
+            },
+            edges={
+                'Audio_Player-X:outport 0': [
+                    'test_mixer:input_1',
+                    'test_mixer:input_2',
+                ],
+            },
+        )
+        m = self._build_mixer(['system:playback_1', 'system:playback_2'], cm)
+        assert m.player_connections_correct(
+            'Audio_Player-X', 'outport',
+            ['system:playback_1', 'system:playback_2'],
+        ) is True
+
+    def test_mono_does_not_check_outport_1(self):
+        # Regression guard: a naive impl that always probes outport 1 for
+        # odd-indexed targets would return False here even though the graph
+        # is wired exactly as connect_player_to_outputs left it.
+        cm = self._make_conn_man(
+            existing_ports={
+                'Audio_Player-X:outport 0',
+                'test_mixer:input_1',
+                'test_mixer:input_2',
+            },
+            edges={
+                'Audio_Player-X:outport 0': [
+                    'test_mixer:input_1',
+                    'test_mixer:input_2',
+                ],
+            },
+        )
+        m = self._build_mixer(['system:playback_1', 'system:playback_2'], cm)
+        m.player_connections_correct(
+            'Audio_Player-X', 'outport',
+            ['system:playback_1', 'system:playback_2'],
+        )
+        # is_connected must never be called with outport 1 as source on a mono player.
+        for c in cm.is_connected.call_args_list:
+            assert c.args[0] != 'Audio_Player-X:outport 1', \
+                f"mono check leaked an outport 1 probe: {c}"
+
+    def test_mono_with_4_outputs(self):
+        # 4 fan-out targets, mono player: outport 0 → all 4 inputs.
+        cm = self._make_conn_man(
+            existing_ports={
+                'Audio_Player-X:outport 0',
+                'test_mixer:input_1',
+                'test_mixer:input_2',
+                'test_mixer:input_3',
+                'test_mixer:input_4',
+            },
+            edges={
+                'Audio_Player-X:outport 0': [
+                    'test_mixer:input_1',
+                    'test_mixer:input_2',
+                    'test_mixer:input_3',
+                    'test_mixer:input_4',
+                ],
+            },
+        )
+        audio_outputs = [
+            'system:playback_1', 'system:playback_2',
+            'system:playback_3', 'system:playback_4',
+        ]
+        m = self._build_mixer(audio_outputs, cm)
+        assert m.player_connections_correct(
+            'Audio_Player-X', 'outport', audio_outputs,
+        ) is True
+
+    def test_subprocess_crashed_returns_false_immediately(self):
+        # outport 0 missing → return False without probing edges.
+        cm = self._make_conn_man(
+            existing_ports={
+                'test_mixer:input_1',
+                'test_mixer:input_2',
+            },
+            edges={},
+        )
+        m = self._build_mixer(['system:playback_1', 'system:playback_2'], cm)
+        assert m.player_connections_correct(
+            'Audio_Player-X', 'outport',
+            ['system:playback_1', 'system:playback_2'],
+        ) is False
+        # No edge probes when port is gone.
+        cm.is_connected.assert_not_called()
+
+    def test_query_count_is_linear_in_selected_outputs(self):
+        # 8 outputs → at most 8 is_connected calls. Quadratic blowup
+        # under refactor would push this over the bound.
+        n = 8
+        audio_outputs = [f'system:playback_{i+1}' for i in range(n)]
+        existing_ports = {f'test_mixer:input_{i+1}' for i in range(n)}
+        existing_ports.update({
+            'Audio_Player-X:outport 0',
+            'Audio_Player-X:outport 1',
+        })
+        edges = {
+            'Audio_Player-X:outport 0': [
+                f'test_mixer:input_{i+1}' for i in range(0, n, 2)
+            ],
+            'Audio_Player-X:outport 1': [
+                f'test_mixer:input_{i+1}' for i in range(1, n, 2)
+            ],
+        }
+        cm = self._make_conn_man(existing_ports, edges)
+        m = self._build_mixer(audio_outputs, cm)
+        assert m.player_connections_correct(
+            'Audio_Player-X', 'outport', audio_outputs,
+        ) is True
+        assert cm.is_connected.call_count == n
+
+
+class TestMixerClient:
+    """Test cases for MixerClient class."""
+    
+    @pytest.fixture
+    def mixer_client(self):
+        """Create MixerClient instance for testing."""
+        with patch('cuemsengine.players.AudioMixer.PlayerClient.__init__'):
+            client = MixerClient(
+                player_port=8000,
+                channel_number=4,
+                client_name='test_mixer'
+            )
+            return client
+    
+    def test_mixer_client_initialization(self, mixer_client):
+        """Test MixerClient initialization."""
+        assert mixer_client.client_name == 'test_mixer'
+        assert mixer_client.channel_number == 4
+    
+    def test_set_master_volume_valid(self, mixer_client):
+        """Test setting master volume with valid gain."""
+        with patch.object(mixer_client, 'set_value') as mock_set_value:
+            mixer_client.set_master_volume(0.5)
+            
+            mock_set_value.assert_called_once_with('/audiomixer/test_mixer/master', 0.5)
+    
+    def test_set_master_volume_invalid(self, mixer_client):
+        """Test setting master volume with invalid gain."""
+        with patch.object(mixer_client, 'set_value') as mock_set_value:
+            mixer_client.set_master_volume(1.5)  # Invalid gain > 1.0
+            mixer_client.set_master_volume(-0.1)  # Invalid gain < 0.0
+            
+            # Should not call set_value for invalid gains
+            mock_set_value.assert_not_called()
+    
+    def test_set_channel_volume_valid(self, mixer_client):
+        """Test setting channel volume with valid parameters."""
+        with patch.object(mixer_client, 'set_value') as mock_set_value:
+            mixer_client.set_channel_volume(2, 0.7)
+            
+            mock_set_value.assert_called_once_with('/audiomixer/test_mixer/2', 0.7)
+    
+    def test_set_channel_volume_invalid_channel(self, mixer_client):
+        """Test setting channel volume with invalid channel number."""
+        with patch.object(mixer_client, 'set_value') as mock_set_value:
+            mixer_client.set_channel_volume(5, 0.7)  # Invalid channel >= channel_number
+            
+            mock_set_value.assert_not_called()
+    
+    def test_set_channel_volume_invalid_gain(self, mixer_client):
+        """Test setting channel volume with invalid gain."""
+        with patch.object(mixer_client, 'set_value') as mock_set_value:
+            mixer_client.set_channel_volume(2, 1.5)  # Invalid gain > 1.0
+            
+            mock_set_value.assert_not_called()
+    
+    def test_set_all_channels_volume(self, mixer_client):
+        """Test setting volume for all channels."""
+        with patch.object(mixer_client, 'set_channel_volume') as mock_set_channel:
+            mixer_client.set_all_channels_volume(0.8)
+            
+            # Should call set_channel_volume for each channel (0, 1, 2, 3)
+            expected_calls = [
+                (0, 0.8), (1, 0.8), (2, 0.8), (3, 0.8)
+            ]
+            mock_set_channel.assert_has_calls([call(*expected_call) for expected_call in expected_calls])
+    
+    def test_mute_channel(self, mixer_client):
+        """Test muting a channel."""
+        with patch.object(mixer_client, 'set_channel_volume') as mock_set_channel:
+            mixer_client.mute_channel(1)
+            
+            mock_set_channel.assert_called_once_with(1, 0.0)
+    
+    def test_unmute_channel(self, mixer_client):
+        """Test unmuting a channel."""
+        with patch.object(mixer_client, 'set_channel_volume') as mock_set_channel:
+            mixer_client.unmute_channel(1, 0.9)
+            
+            mock_set_channel.assert_called_once_with(1, 0.9)
+    
+    def test_unmute_channel_default_gain(self, mixer_client):
+        """Test unmuting a channel with default gain."""
+        with patch.object(mixer_client, 'set_channel_volume') as mock_set_channel:
+            mixer_client.unmute_channel(1)
+            
+            mock_set_channel.assert_called_once_with(1, 1.0)
+    
+    def test_mute_master(self, mixer_client):
+        """Test muting master volume."""
+        with patch.object(mixer_client, 'set_master_volume') as mock_set_master:
+            mixer_client.mute_master()
+            
+            mock_set_master.assert_called_once_with(0.0)
+    
+    def test_unmute_master(self, mixer_client):
+        """Test unmuting master volume."""
+        with patch.object(mixer_client, 'set_master_volume') as mock_set_master:
+            mixer_client.unmute_master(0.8)
+            
+            mock_set_master.assert_called_once_with(0.8)
+    
+    def test_unmute_master_default_gain(self, mixer_client):
+        """Test unmuting master volume with default gain."""
+        with patch.object(mixer_client, 'set_master_volume') as mock_set_master:
+            mixer_client.unmute_master()
+            
+            mock_set_master.assert_called_once_with(1.0)
+    
+    def test_add_to_oscquery_server(self, mixer_client):
+        """Test adding mixer to OSCQuery server."""
+        mock_server = Mock()
+        mock_endpoints = {
+            '/audiomixer/test_mixer/master': [None, None, 1.0],
+            '/audiomixer/test_mixer/0': [None, None, 1.0],
+            '/audiomixer/test_mixer/1': [None, None, 1.0]
+        }
+        
+        with patch.object(mixer_client, 'get_endpoints', return_value=mock_endpoints), \
+             patch('cuemsengine.players.AudioMixer.add_callback_to_all') as mock_add_callback:
+            
+            mixer_client.add_to_oscquery_server(mock_server)
+            
+            mock_add_callback.assert_called_once()
+            mock_server.add_endpoints.assert_called_once()
+
+
+class TestBuildMixerOscEndpoints:
+    """Test cases for build_mixer_osc_endpoints function."""
+    
+    def test_build_mixer_osc_endpoints(self):
+        """Test building OSC endpoints for mixer."""
+        endpoints = build_mixer_osc_endpoints('test_mixer', 3)
+        
+        expected_keys = [
+            '/audiomixer/test_mixer/master',
+            '/audiomixer/test_mixer/0',
+            '/audiomixer/test_mixer/1',
+            '/audiomixer/test_mixer/2'
+        ]
+        
+        for key in expected_keys:
+            assert key in endpoints
+            assert len(endpoints[key]) == 3  # [ValueType, callback, default_value]
+            assert endpoints[key][2] == 1.0  # Default value should be 1.0
+    
+    def test_build_mixer_osc_endpoints_zero_channels(self):
+        """Test building OSC endpoints with zero channels."""
+        endpoints = build_mixer_osc_endpoints('test_mixer', 0)
+        
+        # Should only have master volume
+        assert '/audiomixer/test_mixer/master' in endpoints
+        assert len(endpoints) == 1
+
+
+class TestStartAudioMixer:
+    """Test cases for start_audio_mixer function."""
+    
+    def test_start_audio_mixer(self):
+        """Test starting audio mixer and client."""
+        mock_audio_outputs = [{'name': 'output_1'}, {'name': 'output_2'}]
+        
+        with patch('cuemsengine.players.AudioMixer.AudioMixer') as mock_mixer_class, \
+             patch('cuemsengine.players.AudioMixer.MixerClient') as mock_client_class, \
+             patch('cuemsengine.players.AudioMixer.sleep'):
+            
+            # Mock mixer instance
+            mock_mixer = Mock()
+            mock_mixer.pid = 12345
+            mock_mixer_class.return_value = mock_mixer
+            
+            # Mock client instance
+            mock_client = Mock()
+            mock_client_class.return_value = mock_client
+            
+            mixer, client = start_audio_mixer(
+                audio_outputs=mock_audio_outputs,
+                port=8000,
+                node_uuid='test-node-123'
+            )
+            
+            # Verify mixer was created with correct parameters
+            mock_mixer_class.assert_called_once_with(
+                audio_outputs=mock_audio_outputs,
+                port=8000,
+                node_uuid='test-node-123',
+                path=None
+            )
+            
+            # Verify client was created with correct parameters
+            mock_client_class.assert_called_once_with(
+                player_port=8000,
+                channel_number=2,
+                client_name='test-node-123_mixer'
+            )
+            
+            assert mixer == mock_mixer
+            assert client == mock_client
+    
+    def test_start_audio_mixer_with_custom_path(self):
+        """Test starting audio mixer with custom jack-volume path."""
+        mock_audio_outputs = [{'name': 'output_1'}]
+        
+        with patch('cuemsengine.players.AudioMixer.AudioMixer') as mock_mixer_class, \
+             patch('cuemsengine.players.AudioMixer.MixerClient') as mock_client_class, \
+             patch('cuemsengine.players.AudioMixer.sleep'):
+            
+            mock_mixer = Mock()
+            mock_mixer.pid = 12345
+            mock_mixer_class.return_value = mock_mixer
+            mock_client_class.return_value = Mock()
+            
+            start_audio_mixer(
+                audio_outputs=mock_audio_outputs,
+                port=8000,
+                node_uuid='test-node-123',
+                path='/custom/jack-volume'
+            )
+            
+            mock_mixer_class.assert_called_once_with(
+                audio_outputs=mock_audio_outputs,
+                port=8000,
+                node_uuid='test-node-123',
+                path='/custom/jack-volume'
+            )
diff --git a/tests/test_players_dmxplayer.py b/tests/test_players_dmxplayer.py
new file mode 100644
index 0000000..f2f8883
--- /dev/null
+++ b/tests/test_players_dmxplayer.py
@@ -0,0 +1,421 @@
+import pytest
+import sys
+from pathlib import Path
+from unittest.mock import Mock, patch, MagicMock, call
+
+# Patch the problematic import before importing cuemsengine
+sys.modules['cuemsutils.tools.Osc_nodes_hub'] = Mock()
+
+from cuemsengine.players.DmxPlayer import (
+    DmxPlayer,
+    DmxClient,
+    start_dmx_player
+)
+from pyossia import ossia
+
+
+class TestDmxPlayer:
+    """Test cases for DmxPlayer class."""
+    
+    @pytest.fixture
+    def dmx_player(self):
+        """Create DmxPlayer instance for testing."""
+        with patch('cuemsengine.players.DmxPlayer.sleep'), \
+             patch.object(DmxPlayer, 'call_subprocess'), \
+             patch.object(DmxPlayer, 'start'):  # Mock the start method to avoid thread issues
+            player = DmxPlayer(
+                port=9000,
+                node_uuid='test-node-123',
+                path='/usr/local/bin/dmxplayer'
+            )
+            return player
+    
+    def test_dmx_player_initialization(self):
+        """Test DmxPlayer initialization."""
+        with patch('cuemsengine.players.DmxPlayer.sleep'), \
+             patch.object(DmxPlayer, 'call_subprocess'):
+            
+            player = DmxPlayer(
+                port=9000,
+                node_uuid='test-node-123',
+                path='/usr/local/bin/dmxplayer'
+            )
+            
+            assert player.node_uuid == 'test-node-123'
+            assert player.port == 9000
+            assert player.client_name == 'test-node-123_dmxplayer'
+            assert player.path == '/usr/local/bin/dmxplayer'
+            assert player.args is None
+    
+    def test_dmx_player_initialization_with_args(self):
+        """Test DmxPlayer initialization with custom args."""
+        with patch('cuemsengine.players.DmxPlayer.sleep'), \
+             patch.object(DmxPlayer, 'call_subprocess'):
+            
+            player = DmxPlayer(
+                port=9000,
+                node_uuid='test-node-123',
+                path='/usr/local/bin/dmxplayer',
+                args='--debug --verbose'
+            )
+            
+            assert player.args == '--debug --verbose'
+    
+    def test_run_method(self, dmx_player):
+        """Test the run method starts dmxplayer subprocess."""
+        with patch.object(dmx_player, 'call_subprocess') as mock_call:
+            dmx_player.run()
+            
+            expected_args = [
+                '/usr/local/bin/dmxplayer',
+                '--port', '9000',
+                '--uuid', 'test-node-123'
+            ]
+            mock_call.assert_called_once_with(expected_args)
+    
+    def test_run_method_with_args(self):
+        """Test the run method with custom args."""
+        with patch('cuemsengine.players.DmxPlayer.sleep'), \
+             patch.object(DmxPlayer, 'call_subprocess') as mock_call, \
+             patch.object(DmxPlayer, 'start'):  # Prevent thread from starting automatically
+            
+            player = DmxPlayer(
+                port=9000,
+                node_uuid='test-node-123',
+                path='/usr/local/bin/dmxplayer',
+                args='--debug --verbose'
+            )
+            
+            # Call run() explicitly since we mocked start()
+            player.run()
+            
+            expected_args = [
+                '/usr/local/bin/dmxplayer',
+                '--debug',
+                '--verbose',
+                '--port', '9000',
+                '--uuid', 'test-node-123'
+            ]
+            mock_call.assert_called_once_with(expected_args)
+
+
+class TestDmxClient:
+    """Test cases for DmxClient class."""
+    
+    @pytest.fixture
+    def dmx_client(self):
+        """Create DmxClient instance for testing."""
+        # Store the original method before patching
+        original_create_bundle = DmxClient._create_bundle_parameters
+        
+        with patch('cuemsengine.players.DmxPlayer.PlayerClient.__init__'), \
+             patch.object(DmxClient, '_create_bundle_parameters'):  # Patch during __init__
+            client = DmxClient(
+                player_port=9000,
+                client_name='test-node-123_dmxplayer'
+            )
+            # Mock the device and parameters BEFORE calling _create_bundle_parameters
+            mock_param = Mock()
+            mock_node = Mock()
+            mock_node.create_parameter.return_value = mock_param
+            
+            # Create a mock that returns the mock_node and tracks calls
+            def create_mock_node(node_path):
+                """Create a mock node for each add_node call"""
+                return mock_node
+            
+            # Create device mock with root_node that has add_node
+            client.device = Mock()
+            client.device.root_node = Mock()
+            add_node_mock = Mock(side_effect=create_mock_node)
+            client.device.root_node.add_node = add_node_mock
+            client.name = 'test-node-123_dmxplayer'
+            
+            # Restore and call the real _create_bundle_parameters() method
+            client._create_bundle_parameters = original_create_bundle.__get__(client, DmxClient)
+            client._create_bundle_parameters()
+            
+            # Store the mock for test access
+            client._add_node_mock = add_node_mock
+            
+            return client
+    
+    def test_dmx_client_initialization(self):
+        """Test DmxClient initialization."""
+        with patch('cuemsengine.players.DmxPlayer.PlayerClient.__init__') as mock_init, \
+             patch.object(DmxClient, '_create_bundle_parameters'):  # Skip bundle creation during init
+            client = DmxClient(
+                player_port=9000,
+                client_name='test-node-123_dmxplayer'
+            )
+            
+            # Set up device mock after initialization
+            client.device = Mock()
+            client.device.root_node = Mock()
+            
+            # Verify PlayerClient init was called
+            mock_init.assert_called_once()
+            assert client.player_port == 9000
+            assert client.host == "127.0.0.1"
+    
+    def test_dmx_client_custom_host(self):
+        """Test DmxClient initialization with custom host."""
+        with patch('cuemsengine.players.DmxPlayer.PlayerClient.__init__'), \
+             patch.object(DmxClient, '_create_bundle_parameters'):  # Skip bundle creation during init
+            client = DmxClient(
+                player_port=9000,
+                client_name='test-node-123_dmxplayer',
+                host='192.168.1.100'
+            )
+            
+            # Set up device mock after initialization
+            client.device = Mock()
+            client.device.root_node = Mock()
+            
+            assert client.host == '192.168.1.100'
+    
+    def test_create_bundle_parameters(self, dmx_client):
+        """Test bundle parameters are created correctly."""
+        # Verify add_node was called for each parameter
+        expected_nodes = ['/frame', '/mtc_time', '/start_offset', '/fade_time']
+        
+        # Get all calls made to add_node (stored in fixture)
+        add_node_mock = dmx_client._add_node_mock
+        assert add_node_mock.called, "add_node should have been called"
+        call_args_list = add_node_mock.call_args_list
+        
+        # Extract the first argument (node path) from each call
+        actual_calls = [call[0][0] for call in call_args_list if call[0]]
+        
+        # Verify each expected node was created
+        assert len(actual_calls) == len(expected_nodes), \
+            f"Expected {len(expected_nodes)} nodes, got {len(actual_calls)}: {actual_calls}"
+        
+        for node in expected_nodes:
+            assert node in actual_calls, f"Expected node {node} not found in calls: {actual_calls}"
+    
+    def test_send_dmx_scene_with_integer_mtc(self, dmx_client):
+        """Test sending DMX scene with integer MTC time."""
+        # Setup
+        universe_frames = {
+            1: {0: 255, 1: 128, 2: 64}
+        }
+        
+        # Mock bundle
+        mock_bundle = Mock(spec=ossia.Bundle)
+        
+        with patch('cuemsengine.players.DmxPlayer.ossia.Bundle', return_value=mock_bundle):
+            dmx_client.send_dmx_scene(
+                universe_frames=universe_frames,
+                mtc_time=1000,  # milliseconds
+                fade_time=2.0
+            )
+            
+            # Verify bundle.append was called for frame, start_offset, and fade_time
+            assert mock_bundle.append.call_count == 3
+            
+            # Verify device.push_bundle was called
+            dmx_client.device.push_bundle.assert_called_once_with(mock_bundle)
+    
+    def test_send_dmx_scene_with_string_mtc(self, dmx_client):
+        """Test sending DMX scene with string MTC time."""
+        universe_frames = {
+            1: {0: 255, 1: 128}
+        }
+        
+        mock_bundle = Mock(spec=ossia.Bundle)
+        
+        with patch('cuemsengine.players.DmxPlayer.ossia.Bundle', return_value=mock_bundle):
+            dmx_client.send_dmx_scene(
+                universe_frames=universe_frames,
+                mtc_time="now",
+                fade_time=1.5
+            )
+            
+            # Verify bundle.append was called for frame, mtc_time, and fade_time
+            assert mock_bundle.append.call_count == 3
+            
+            # Verify device.push_bundle was called
+            dmx_client.device.push_bundle.assert_called_once_with(mock_bundle)
+    
+    def test_send_dmx_scene_multiple_universes(self, dmx_client):
+        """Test sending DMX scene with multiple universes."""
+        universe_frames = {
+            1: {0: 255, 1: 128, 2: 64},
+            2: {0: 100, 1: 200},
+            3: {0: 50}
+        }
+        
+        mock_bundle = Mock(spec=ossia.Bundle)
+        
+        with patch('cuemsengine.players.DmxPlayer.ossia.Bundle', return_value=mock_bundle):
+            dmx_client.send_dmx_scene(
+                universe_frames=universe_frames,
+                mtc_time=5000,
+                fade_time=3.0
+            )
+            
+            # Should append 3 frames + 1 start_offset + 1 fade_time = 5 calls
+            assert mock_bundle.append.call_count == 5
+            
+            dmx_client.device.push_bundle.assert_called_once()
+    
+    def test_send_dmx_scene_empty_universe(self, dmx_client):
+        """Test sending DMX scene with empty universe (should be skipped)."""
+        universe_frames = {
+            1: {0: 255},
+            2: {}  # Empty universe should be skipped
+        }
+        
+        mock_bundle = Mock(spec=ossia.Bundle)
+        
+        with patch('cuemsengine.players.DmxPlayer.ossia.Bundle', return_value=mock_bundle):
+            dmx_client.send_dmx_scene(
+                universe_frames=universe_frames,
+                mtc_time=1000,
+                fade_time=1.0
+            )
+            
+            # Should append 1 frame (universe 2 skipped) + 1 start_offset + 1 fade_time = 3 calls
+            assert mock_bundle.append.call_count == 3
+    
+    def test_send_dmx_scene_error_handling(self, dmx_client):
+        """Test error handling in send_dmx_scene."""
+        universe_frames = {1: {0: 255}}
+        
+        # Mock bundle to raise exception
+        with patch('cuemsengine.players.DmxPlayer.ossia.Bundle', side_effect=Exception("Test error")):
+            with pytest.raises(Exception, match="Test error"):
+                dmx_client.send_dmx_scene(
+                    universe_frames=universe_frames,
+                    mtc_time=1000,
+                    fade_time=1.0
+                )
+    
+    def test_send_dmx_scene_sorted_channels(self, dmx_client):
+        """Test that channels are sorted when building frame data."""
+        universe_frames = {
+            1: {5: 100, 1: 200, 3: 150}  # Unsorted channels
+        }
+        
+        mock_bundle = Mock(spec=ossia.Bundle)
+        
+        with patch('cuemsengine.players.DmxPlayer.ossia.Bundle', return_value=mock_bundle):
+            dmx_client.send_dmx_scene(
+                universe_frames=universe_frames,
+                mtc_time=1000,
+                fade_time=1.0
+            )
+            
+            # Verify bundle.append was called
+            # The first call should be for the frame with sorted channels
+            frame_call = mock_bundle.append.call_args_list[0]
+            frame_data = frame_call[0][1]
+            
+            # Frame data should be: [universe_id, ch1, val1, ch3, val3, ch5, val5]
+            # Channels should be in order: 1, 3, 5
+            assert frame_data[0] == 1  # universe_id
+            assert frame_data[1] == 1  # first channel
+            assert frame_data[2] == 200  # first value
+            assert frame_data[3] == 3  # second channel
+            assert frame_data[4] == 150  # second value
+            assert frame_data[5] == 5  # third channel
+            assert frame_data[6] == 100  # third value
+
+
+class TestStartDmxPlayer:
+    """Test cases for start_dmx_player function."""
+    
+    def test_start_dmx_player(self):
+        """Test starting DMX player and client."""
+        with patch('cuemsengine.players.DmxPlayer.DmxPlayer') as mock_player_class, \
+             patch('cuemsengine.players.DmxPlayer.DmxClient') as mock_client_class, \
+             patch('cuemsengine.players.DmxPlayer.sleep'):
+            
+            # Mock player instance
+            mock_player = Mock()
+            mock_player.pid = 12345
+            mock_player_class.return_value = mock_player
+            
+            # Mock client instance
+            mock_client = Mock()
+            mock_client_class.return_value = mock_client
+            
+            player, client = start_dmx_player(
+                port=9000,
+                node_uuid='test-node-123',
+                path='/usr/local/bin/dmxplayer'
+            )
+            
+            # Verify player was created with correct parameters
+            mock_player_class.assert_called_once_with(
+                port=9000,
+                node_uuid='test-node-123',
+                path='/usr/local/bin/dmxplayer',
+                args=None
+            )
+            
+            # Verify client was created with correct parameters
+            mock_client_class.assert_called_once_with(
+                player_port=9000,
+                client_name='test-node-123_dmxplayer'
+            )
+            
+            assert player == mock_player
+            assert client == mock_client
+    
+    def test_start_dmx_player_with_args(self):
+        """Test starting DMX player with custom args."""
+        with patch('cuemsengine.players.DmxPlayer.DmxPlayer') as mock_player_class, \
+             patch('cuemsengine.players.DmxPlayer.DmxClient') as mock_client_class, \
+             patch('cuemsengine.players.DmxPlayer.sleep'):
+            
+            mock_player = Mock()
+            mock_player.pid = 12345
+            mock_player_class.return_value = mock_player
+            mock_client_class.return_value = Mock()
+            
+            start_dmx_player(
+                port=9000,
+                node_uuid='test-node-123',
+                path='/usr/local/bin/dmxplayer',
+                args='--debug'
+            )
+            
+            mock_player_class.assert_called_once_with(
+                port=9000,
+                node_uuid='test-node-123',
+                path='/usr/local/bin/dmxplayer',
+                args='--debug'
+            )
+    
+    def test_start_dmx_player_waits_for_pid(self):
+        """Test that start_dmx_player waits for player process to start."""
+        with patch('cuemsengine.players.DmxPlayer.DmxPlayer') as mock_player_class, \
+             patch('cuemsengine.players.DmxPlayer.DmxClient') as mock_client_class, \
+             patch('cuemsengine.players.DmxPlayer.sleep') as mock_sleep:
+            
+            # Mock player with pid initially None, then set
+            mock_player = Mock()
+            mock_player.pid = None
+            mock_player_class.return_value = mock_player
+            
+            mock_client_class.return_value = Mock()
+            
+            # Set pid after first check
+            # sleep() passes the sleep duration as an argument, so accept it
+            def set_pid_after_check(*args, **kwargs):
+                if mock_sleep.call_count == 1:
+                    mock_player.pid = 12345
+            
+            mock_sleep.side_effect = set_pid_after_check
+            
+            start_dmx_player(
+                port=9000,
+                node_uuid='test-node-123',
+                path='/usr/local/bin/dmxplayer'
+            )
+            
+            # Verify sleep was called (waiting for pid)
+            assert mock_sleep.call_count >= 1
+
diff --git a/tests/test_players_jackconnectionmanager.py b/tests/test_players_jackconnectionmanager.py
new file mode 100644
index 0000000..95e8c04
--- /dev/null
+++ b/tests/test_players_jackconnectionmanager.py
@@ -0,0 +1,339 @@
+import pytest
+from unittest.mock import Mock, patch, MagicMock
+import jack
+from cuemsengine.players.JackConnectionManager import JackConnectionManager
+
+
+class TestJackConnectionManager:
+    """Test cases for JackConnectionManager class."""
+    
+    @pytest.fixture
+    def mock_jack_client(self):
+        """Mock JACK client for testing."""
+        mock_client = Mock()
+        
+        # Create mock port objects with name attribute
+        mock_port1 = Mock()
+        mock_port1.name = 'system:playback_1'
+        mock_port2 = Mock()
+        mock_port2.name = 'system:playback_2'
+        mock_port3 = Mock()
+        mock_port3.name = 'system:capture_1'
+        mock_port4 = Mock()
+        mock_port4.name = 'test_client:output_1'
+        
+        mock_client.get_ports.return_value = [mock_port1, mock_port2, mock_port3, mock_port4]
+        
+        # Create mock connection objects with name attribute
+        mock_conn1 = Mock()
+        mock_conn1.name = 'system:playback_1'
+        mock_conn2 = Mock()
+        mock_conn2.name = 'system:playback_2'
+        
+        mock_client.get_all_connections.return_value = [mock_conn1, mock_conn2]
+        return mock_client
+    
+    @pytest.fixture
+    def jack_manager(self, mock_jack_client):
+        """Create JackConnectionManager instance for testing."""
+        with patch('cuemsengine.players.JackConnectionManager.jack.Client') as mock_client_class:
+            mock_client_class.return_value = mock_jack_client
+            manager = JackConnectionManager('test_client')
+            return manager
+    
+    def test_jack_connection_manager_initialization(self, mock_jack_client):
+        """Test JackConnectionManager initialization."""
+        with patch('cuemsengine.players.JackConnectionManager.jack.Client') as mock_client_class:
+            mock_client_class.return_value = mock_jack_client
+            
+            manager = JackConnectionManager('test_client')
+            
+            assert manager.client_name == 'test_client'
+            assert manager._client == mock_jack_client
+            mock_client_class.assert_called_once_with('test_client', no_start_server=True)
+    
+    def test_jack_connection_manager_initialization_with_jack_error(self):
+        """Test JackConnectionManager initialization with JACK error."""
+        with patch('cuemsengine.players.JackConnectionManager.jack.Client') as mock_client_class:
+            mock_client_class.side_effect = jack.JackError("JACK server not running")
+            
+            manager = JackConnectionManager('test_client')
+            
+            assert manager.client_name == 'test_client'
+            assert manager._client is None
+    
+    def test_client_property_reinitializes_on_none(self, mock_jack_client):
+        """Test that client property reinitializes when _client is None."""
+        with patch('cuemsengine.players.JackConnectionManager.jack.Client') as mock_client_class:
+            mock_client_class.return_value = mock_jack_client
+            
+            manager = JackConnectionManager('test_client')
+            manager._client = None  # Simulate client becoming None
+            
+            client = manager.client
+            
+            assert client == mock_jack_client
+            assert mock_client_class.call_count == 2  # Called twice: init and property access
+    
+    def test_get_ports_success(self, jack_manager, mock_jack_client):
+        """Test getting JACK ports successfully."""
+        ports = jack_manager.get_ports()
+        
+        expected_ports = ['system:playback_1', 'system:playback_2', 'system:capture_1', 'test_client:output_1']
+        assert ports == expected_ports
+        mock_jack_client.get_ports.assert_called_once_with(
+            name_pattern='',
+            is_audio=True,
+            is_output=None,
+            is_input=None
+        )
+    
+    def test_get_ports_with_pattern(self, jack_manager, mock_jack_client):
+        """Test getting JACK ports with name pattern filter."""
+        jack_manager.get_ports(pattern='system.*')
+        
+        mock_jack_client.get_ports.assert_called_once_with(
+            name_pattern='system.*',
+            is_audio=True,
+            is_output=None,
+            is_input=None
+        )
+    
+    def test_get_ports_with_filters(self, jack_manager, mock_jack_client):
+        """Test getting JACK ports with audio and direction filters."""
+        jack_manager.get_ports(is_audio=True, is_output=True, is_input=False)
+        
+        mock_jack_client.get_ports.assert_called_once_with(
+            name_pattern='',
+            is_audio=True,
+            is_output=True,
+            is_input=False
+        )
+    
+    def test_get_ports_jack_error(self, mock_jack_client):
+        """Test getting JACK ports with JACK error."""
+        with patch('cuemsengine.players.JackConnectionManager.jack.Client') as mock_client_class:
+            mock_jack_client.get_ports.side_effect = jack.JackError("Connection lost")
+            mock_client_class.return_value = mock_jack_client
+            
+            manager = JackConnectionManager('test_client')
+            ports = manager.get_ports()
+            
+            assert ports == []
+    
+    def test_get_ports_unexpected_error(self, mock_jack_client):
+        """Test getting JACK ports with unexpected error."""
+        with patch('cuemsengine.players.JackConnectionManager.jack.Client') as mock_client_class:
+            mock_jack_client.get_ports.side_effect = Exception("Unexpected error")
+            mock_client_class.return_value = mock_jack_client
+            
+            manager = JackConnectionManager('test_client')
+            ports = manager.get_ports()
+            
+            assert ports == []
+    
+    def test_get_ports_no_client(self):
+        """Test getting JACK ports when client is not initialized."""
+        with patch('cuemsengine.players.JackConnectionManager.jack.Client') as mock_client_class:
+            mock_client_class.side_effect = jack.JackError("JACK server not running")
+            
+            manager = JackConnectionManager('test_client')
+            ports = manager.get_ports()
+            
+            assert ports == []
+    
+    def test_connect_by_name_success(self, jack_manager, mock_jack_client):
+        """Test connecting JACK ports successfully."""
+        mock_jack_client.get_all_connections.return_value = []  # Not already connected
+        
+        result = jack_manager.connect_by_name('source:output', 'dest:input')
+        
+        assert result is True
+        mock_jack_client.connect.assert_called_once_with('source:output', 'dest:input')
+    
+    def test_connect_by_name_already_connected(self, jack_manager, mock_jack_client):
+        """Test connecting JACK ports that are already connected."""
+        # Mock is_connected to return True
+        with patch.object(jack_manager, 'is_connected', return_value=True):
+            result = jack_manager.connect_by_name('source:output', 'dest:input')
+            
+            assert result is True
+            mock_jack_client.connect.assert_not_called()
+    
+    def test_connect_by_name_jack_error(self, jack_manager, mock_jack_client):
+        """Test connecting JACK ports with JACK error."""
+        mock_jack_client.get_all_connections.return_value = []  # Not already connected
+        mock_jack_client.connect.side_effect = jack.JackError("Port not found")
+        
+        result = jack_manager.connect_by_name('source:output', 'dest:input')
+        
+        assert result is False
+    
+    def test_connect_by_name_unexpected_error(self, jack_manager, mock_jack_client):
+        """Test connecting JACK ports with unexpected error."""
+        mock_jack_client.get_all_connections.return_value = []  # Not already connected
+        mock_jack_client.connect.side_effect = Exception("Unexpected error")
+        
+        result = jack_manager.connect_by_name('source:output', 'dest:input')
+        
+        assert result is False
+    
+    def test_connect_by_name_no_client(self):
+        """Test connecting JACK ports when client is not initialized."""
+        with patch('cuemsengine.players.JackConnectionManager.jack.Client') as mock_client_class:
+            mock_client_class.side_effect = jack.JackError("JACK server not running")
+            
+            manager = JackConnectionManager('test_client')
+            result = manager.connect_by_name('source:output', 'dest:input')
+            
+            assert result is False
+    
+    def test_disconnect_by_name_success(self, jack_manager, mock_jack_client):
+        """Test disconnecting JACK ports successfully."""
+        result = jack_manager.disconnect_by_name('source:output', 'dest:input')
+        
+        assert result is True
+        mock_jack_client.disconnect.assert_called_once_with('source:output', 'dest:input')
+    
+    def test_disconnect_by_name_jack_error(self, jack_manager, mock_jack_client):
+        """Test disconnecting JACK ports with JACK error."""
+        mock_jack_client.disconnect.side_effect = jack.JackError("Port not found")
+        
+        result = jack_manager.disconnect_by_name('source:output', 'dest:input')
+        
+        assert result is False
+    
+    def test_disconnect_by_name_unexpected_error(self, jack_manager, mock_jack_client):
+        """Test disconnecting JACK ports with unexpected error."""
+        mock_jack_client.disconnect.side_effect = Exception("Unexpected error")
+        
+        result = jack_manager.disconnect_by_name('source:output', 'dest:input')
+        
+        assert result is False
+    
+    def test_disconnect_by_name_no_client(self):
+        """Test disconnecting JACK ports when client is not initialized."""
+        with patch('cuemsengine.players.JackConnectionManager.jack.Client') as mock_client_class:
+            mock_client_class.side_effect = jack.JackError("JACK server not running")
+            
+            manager = JackConnectionManager('test_client')
+            result = manager.disconnect_by_name('source:output', 'dest:input')
+            
+            assert result is False
+    
+    def test_get_connections_success(self, jack_manager, mock_jack_client):
+        """Test getting connections for a port successfully."""
+        connections = jack_manager.get_connections('test_port')
+        
+        expected_connections = ['system:playback_1', 'system:playback_2']
+        assert connections == expected_connections
+        
+        mock_jack_client.get_ports.assert_called_once_with(name_pattern='^test_port$')
+        mock_jack_client.get_all_connections.assert_called_once()
+    
+    def test_get_connections_port_not_found(self, jack_manager, mock_jack_client):
+        """Test getting connections for a port that doesn't exist."""
+        mock_jack_client.get_ports.return_value = []  # No ports found
+        
+        connections = jack_manager.get_connections('nonexistent_port')
+        
+        assert connections == []
+    
+    def test_get_connections_jack_error(self, jack_manager, mock_jack_client):
+        """Test getting connections with JACK error."""
+        mock_jack_client.get_ports.side_effect = jack.JackError("Connection lost")
+        
+        connections = jack_manager.get_connections('test_port')
+        
+        assert connections == []
+    
+    def test_get_connections_unexpected_error(self, jack_manager, mock_jack_client):
+        """Test getting connections with unexpected error."""
+        mock_jack_client.get_ports.side_effect = Exception("Unexpected error")
+        
+        connections = jack_manager.get_connections('test_port')
+        
+        assert connections == []
+    
+    def test_get_connections_no_client(self):
+        """Test getting connections when client is not initialized."""
+        with patch('cuemsengine.players.JackConnectionManager.jack.Client') as mock_client_class:
+            mock_client_class.side_effect = jack.JackError("JACK server not running")
+            
+            manager = JackConnectionManager('test_client')
+            connections = manager.get_connections('test_port')
+            
+            assert connections == []
+    
+    def test_is_connected_true(self, jack_manager):
+        """Test is_connected returns True when ports are connected."""
+        with patch.object(jack_manager, 'get_connections', return_value=['dest:input', 'other:port']):
+            result = jack_manager.is_connected('source:output', 'dest:input')
+            
+            assert result is True
+    
+    def test_is_connected_false(self, jack_manager):
+        """Test is_connected returns False when ports are not connected."""
+        with patch.object(jack_manager, 'get_connections', return_value=['other:port1', 'other:port2']):
+            result = jack_manager.is_connected('source:output', 'dest:input')
+            
+            assert result is False
+    
+    def test_is_connected_no_connections(self, jack_manager):
+        """Test is_connected returns False when no connections exist."""
+        with patch.object(jack_manager, 'get_connections', return_value=[]):
+            result = jack_manager.is_connected('source:output', 'dest:input')
+            
+            assert result is False
+    
+    def test_del_cleanup(self, mock_jack_client):
+        """Test cleanup on deletion."""
+        with patch('cuemsengine.players.JackConnectionManager.jack.Client') as mock_client_class:
+            mock_client_class.return_value = mock_jack_client
+            
+            manager = JackConnectionManager('test_client')
+            del manager
+            
+            mock_jack_client.close.assert_called_once()
+    
+    def test_del_cleanup_with_error(self, mock_jack_client):
+        """Test cleanup on deletion with error."""
+        with patch('cuemsengine.players.JackConnectionManager.jack.Client') as mock_client_class:
+            mock_jack_client.close.side_effect = Exception("Close error")
+            mock_client_class.return_value = mock_jack_client
+            
+            manager = JackConnectionManager('test_client')
+            del manager  # Should not raise exception
+            
+            mock_jack_client.close.assert_called_once()
+    
+    def test_del_cleanup_no_client(self):
+        """Test cleanup on deletion when client is None."""
+        with patch('cuemsengine.players.JackConnectionManager.jack.Client') as mock_client_class:
+            mock_client_class.side_effect = jack.JackError("JACK server not running")
+            
+            manager = JackConnectionManager('test_client')
+            del manager  # Should not raise exception
+    
+    def test_integration_workflow(self, mock_jack_client):
+        """Test a complete workflow: get ports, connect, check connection, disconnect."""
+        with patch('cuemsengine.players.JackConnectionManager.jack.Client') as mock_client_class:
+            mock_client_class.return_value = mock_jack_client
+            
+            manager = JackConnectionManager('test_client')
+            
+            # Get available ports
+            ports = manager.get_ports()
+            assert len(ports) == 4
+            
+            # Connect two ports
+            result = manager.connect_by_name('test_client:output_1', 'system:playback_1')
+            assert result is True
+            
+            # Check if connected
+            is_connected = manager.is_connected('test_client:output_1', 'system:playback_1')
+            assert is_connected is True
+            
+            # Disconnect
+            result = manager.disconnect_by_name('test_client:output_1', 'system:playback_1')
+            assert result is True
diff --git a/tests/test_project_go.py b/tests/test_project_go.py
new file mode 100644
index 0000000..4f2040c
--- /dev/null
+++ b/tests/test_project_go.py
@@ -0,0 +1,67 @@
+from unittest.mock import patch
+from time import sleep
+from cuemsengine import ControllerEngine, NodeEngine
+from .helpers import timeout
+
+from .conftest import engine_cleanup # type: ignore[import-untyped]
+from .fixtures import mock_config_path, mock_avahi_resolve, mock_library_path, mock_controller_ip, suppress_logging, mock_player_clients, mock_player_subprocess
+
+
+def test_project_go_from_controller(mock_config_path, mock_avahi_resolve, mock_library_path, mock_controller_ip, mock_player_clients, mock_player_subprocess, suppress_logging, engine_cleanup):
+    # ARRANGE
+    controller_engine = ControllerEngine(with_mtc=True)
+    controller_engine.create_timecode()
+    controller_engine.set_comms()
+    node_engine = NodeEngine(with_mtc=True)
+    node_engine.set_communications()
+    node_engine.set_players()
+    sleep(0.5)
+    
+    # ACT - Load project (this will create player clients)
+    controller_engine.load_project('complex_test')
+    while node_engine.get_status('load') != 'complex_test':
+        sleep(0.01)
+    # ACT
+    with timeout(10):
+        controller_engine.go_script('complex_test')
+        sleep(1)
+
+    # ASSERT - Verify engines loaded project
+    assert node_engine.get_status('running') == 'yes', "Node engine is not running"
+
+    assert controller_engine.script is not None
+    assert node_engine.script is not None
+    assert controller_engine.script.name == 'Test Main Script'
+    assert node_engine.script.name == 'Test Main Script'
+    assert controller_engine.get_status('load') == 'complex_test'
+    assert node_engine.get_status('load') == 'complex_test'
+    
+    # ASSERT - Verify player clients were mocked and recorded
+    print(f"\n📊 Mock Player Clients Created: {len(mock_player_clients['clients'])}")
+    for client in mock_player_clients['clients']:
+        print(f"   - {client['name']} on port {client['port']}")
+    
+    assert len(mock_player_clients['clients']) > 0, "Expected player clients to be created"
+    client_names = {client['name'] for client in mock_player_clients['clients']}
+    
+    # Verify we have expected player types
+    has_video = any('video' in name for name in client_names)
+    has_dmx = any('dmx' in name or 'mixer' in name for name in client_names)
+    assert has_video or has_dmx, f"Expected video or dmx players, got: {client_names}"
+    
+    # If commands were sent, verify they have correct structure
+    print(f"📊 Mock Commands Recorded: {len(mock_player_clients['commands'])}")
+    for cmd in mock_player_clients['commands']:  # Show first 5
+        print(f"   - {cmd['client']}: {cmd['node']} = {cmd['value']}")
+    
+    for cmd in mock_player_clients['commands']:
+        assert 'client' in cmd
+        assert 'node' in cmd
+        assert 'value' in cmd
+        assert 'port' in cmd
+    
+    assert False
+
+    # CLEANUP
+    engine_cleanup(controller_engine)
+    engine_cleanup(node_engine)
diff --git a/tests/test_project_load.py b/tests/test_project_load.py
new file mode 100644
index 0000000..7612959
--- /dev/null
+++ b/tests/test_project_load.py
@@ -0,0 +1,176 @@
+import pytest
+from unittest.mock import patch
+from logging import INFO
+from time import sleep
+from cuemsengine import ControllerEngine, NodeEngine
+
+from .conftest import engine_cleanup # type: ignore[import-untyped]
+from .fixtures import mock_config_path, mock_avahi_resolve, mock_library_path, mock_controller_ip, suppress_logging, mock_player_subprocess
+
+def test_engine_instantiation(mock_config_path, mock_avahi_resolve, mock_library_path, mock_controller_ip, engine_cleanup):
+    """Test the project load"""
+    # ACT
+    controller_engine = ControllerEngine(with_mtc=False)
+    node_engine = NodeEngine(with_mtc=False)
+
+    # ASSERT
+    assert controller_engine.cm is not None
+    assert node_engine.cm is not None
+    assert controller_engine.script is None
+    assert node_engine.script is None
+
+    # CLEANUP - now handled automatically by engine_cleanup fixture
+    engine_cleanup(controller_engine)
+    engine_cleanup(node_engine)
+
+def test_project_load_on_controller(mock_config_path, mock_avahi_resolve, mock_library_path, mock_controller_ip, engine_cleanup, caplog):
+    """Test the project load on the controller"""
+    # ARRANGE
+    controller_engine = ControllerEngine(with_mtc=False)
+    controller_engine.set_oscquery()
+    # ACT
+    controller_engine.load_project('empty_test')
+
+    # ASSERT
+    assert controller_engine.script is not None
+    assert controller_engine.script.unix_name == 'empty_test'
+    assert 'Project empty_test loaded' in caplog.text
+    # assert 'Project empty_test already loaded' in caplog.text
+    assert controller_engine.get_status('load') == 'empty_test'
+    
+    # CLEANUP - now handled automatically by engine_cleanup fixture
+    engine_cleanup(controller_engine)
+
+def test_complex_project_load_on_controller(mock_config_path, mock_avahi_resolve, mock_library_path, mock_controller_ip, engine_cleanup, caplog):
+    """Test the project load on the controller"""
+    # ARRANGE
+    controller_engine = ControllerEngine(with_mtc=False)
+    controller_engine.set_oscquery()
+    # ACT
+    controller_engine.load_project('complex_test')
+
+    # ASSERT
+    assert controller_engine.script is not None
+    assert controller_engine.script.unix_name == 'complex_test'
+    assert 'Project complex_test loaded' in caplog.text
+    # assert 'Project complex_test already loaded' in caplog.text
+    assert controller_engine.get_status('load') == 'complex_test'
+    
+    # CLEANUP - now handled automatically by engine_cleanup fixture
+    controller_engine.stop()
+    engine_cleanup(controller_engine)
+
+def test_project_load_on_node(mock_config_path, mock_avahi_resolve, mock_library_path, mock_controller_ip, engine_cleanup, caplog, capfd):
+    """Test the project load on the node"""
+    # ARRANGE
+    caplog.set_level(INFO)
+    node_engine = NodeEngine(with_mtc=False)
+    # node_engine.set_communications()
+
+    # ACT
+    node_engine.load_project('empty_test')
+
+    # ASSERT
+    assert node_engine.script is not None
+    assert node_engine.script.unix_name == 'empty_test'
+    assert 'Project empty_test loaded' in caplog.text
+    assert 'No media files to deploy' in caplog.text
+    out, err = capfd.readouterr()
+    # assert "/engine/status/running" in out
+    # assert "/engine/command/go" in out
+    assert node_engine.get_status('load') == 'empty_test'
+
+    # CLEANUP - now handled automatically by engine_cleanup fixture
+    engine_cleanup(node_engine)
+
+def test_project_load_from_controller(mock_config_path, mock_avahi_resolve, mock_library_path, mock_controller_ip, engine_cleanup, caplog):
+    """Test the project load from the controller"""
+    # ARRANGE
+    caplog.set_level(INFO)
+    controller_engine = ControllerEngine(with_mtc=False)
+    controller_engine.set_oscquery()
+    sleep(0.5)
+    node_engine = NodeEngine(with_mtc=False)
+    node_engine.set_communications()
+    sleep(0.5)
+    # ACT
+    controller_engine.load_project('empty_test')
+    sleep(1)
+
+    # ASSERT
+    assert controller_engine.script is not None
+    assert controller_engine.script.unix_name == 'empty_test'
+    assert node_engine.script is not None
+    assert node_engine.script.unix_name == 'empty_test'
+    assert 'Project empty_test loaded' in caplog.text
+    assert 'No media files to deploy' in caplog.text
+    assert node_engine.get_status('load') == 'empty_test'
+
+    # CLEANUP
+    engine_cleanup(controller_engine)
+    engine_cleanup(node_engine)
+
+def test_two_projects_load_on_controller(mock_config_path, mock_avahi_resolve, mock_library_path, mock_controller_ip, engine_cleanup, caplog):
+    """Test the project load on the controller"""
+    # ARRANGE
+    caplog.set_level(INFO)
+    controller_engine = ControllerEngine(with_mtc=False)
+    controller_engine.set_oscquery()
+    # ACT
+    controller_engine.load_project('empty_test')
+    sleep(1)
+    controller_engine.load_project('complex_test')
+    sleep(1)
+
+    # ASSERT
+    assert controller_engine.script is not None
+    assert controller_engine.script.unix_name == 'complex_test'
+    assert 'Project empty_test loaded' in caplog.text
+    # assert 'Project empty_test already loaded' in caplog.text
+    assert 'Project complex_test loaded' in caplog.text
+    # assert 'Project complex_test already loaded' in caplog.text
+    assert controller_engine.get_status('load') == 'complex_test'
+    
+    # CLEANUP - now handled automatically by engine_cleanup fixture
+    engine_cleanup(controller_engine)
+
+
+def test_two_projects_load_from_controller(mock_config_path, mock_avahi_resolve, mock_library_path, mock_controller_ip, mock_player_subprocess, engine_cleanup):
+    """Test the project load from the controller"""
+    # ARRANGE
+    controller_engine = ControllerEngine(with_mtc=False)
+    controller_engine.set_oscquery()
+    sleep(0.5)
+    node_engine = NodeEngine(with_mtc=False)
+    node_engine.set_communications()
+    node_engine.set_players()
+    sleep(0.5)
+
+    # ACT
+    controller_engine.load_project('empty_test')
+    sleep(2)
+    controller_engine.load_project('complex_test')
+    sleep(2)
+    
+    # ASSERT
+    assert controller_engine.script is not None
+    assert node_engine.script is not None
+    assert controller_engine.script.name == 'Test Main Script'
+    assert node_engine.script.name == 'Test Main Script'
+    assert controller_engine.get_status('load') == 'complex_test'
+    assert node_engine.get_status('load') == 'complex_test'
+    
+    # Assert player subprocess calls were mocked and recorded
+    assert len(mock_player_subprocess) > 0, "Expected player subprocess calls to be recorded"
+    player_types = {call['player'] for call in mock_player_subprocess}
+    assert 'VideoPlayer' in player_types, "Expected VideoPlayer to be called"
+    # Verify each call has required fields
+    for call in mock_player_subprocess:
+        assert 'player' in call
+        assert 'args' in call
+        assert 'pid' in call
+        assert isinstance(call['args'], list), "Call args should be a list"
+
+    # CLEANUP
+    engine_cleanup(controller_engine)
+    engine_cleanup(node_engine)
diff --git a/tests/test_pyossia_gmq.py b/tests/test_pyossia_gmq.py
new file mode 100644
index 0000000..abadf84
--- /dev/null
+++ b/tests/test_pyossia_gmq.py
@@ -0,0 +1,197 @@
+#!/usr/bin/env python3
+"""
+Test pyossia GlobalMessageQueue without python-daemon.
+
+FINDINGS (2024):
+================
+GMQ failures are NOT due to python-daemon. The root cause is:
+
+pyossia LocalDevice.create_osc_server() and create_oscquery_server()
+return True but DON'T ACTUALLY OPEN NETWORK PORTS.
+
+Verified by:
+1. socket.bind() succeeds on the "listening" ports (they're not bound)
+2. socket.connect() fails on TCP ports (nothing listening)
+3. No messages ever received via GMQ or callbacks
+
+The pyossia server functionality appears broken/incomplete in the
+Python bindings. Only the client functionality (OSCDevice) works.
+
+CONCLUSION:
+- Keep using NNG for bus communication
+- Keep using pythonosc for any server-side OSC needs
+- pyossia is only reliable as an OSC CLIENT
+"""
+
+import sys
+import time
+import threading
+
+sys.path.insert(0, '/home/stagelab/src/cuems-engine/src')
+sys.path.insert(0, '/home/stagelab/src/cuems-utils/src')
+
+
+def test_gmq_basic():
+    """Test basic GlobalMessageQueue functionality."""
+    print("\n" + "="*60)
+    print("TEST: GlobalMessageQueue Basic Functionality")
+    print("="*60)
+    
+    from pyossia import ossia, LocalDevice, ValueType
+    from pythonosc.udp_client import SimpleUDPClient
+    
+    # Create local device with OSC server
+    ld = LocalDevice('gmq_test_server')
+    ld.create_osc_server('127.0.0.1', 19020, 19021, False)
+    print("✓ LocalDevice created with OSC server on port 19020")
+    
+    # Add test parameter
+    node = ld.add_node('/test/value')
+    param = node.create_parameter(ValueType.Int)
+    print("✓ Test parameter created at /test/value")
+    
+    # Create GlobalMessageQueue
+    gmq = ossia.GlobalMessageQueue(ld)
+    print("✓ GlobalMessageQueue created")
+    
+    # Create OSC client to send messages
+    osc_client = SimpleUDPClient('127.0.0.1', 19020)
+    print("✓ OSC client ready to send to port 19020")
+    
+    # Send some values
+    print("\nSending 10 test values...")
+    for i in range(10):
+        osc_client.send_message('/test/value', i * 100)
+        time.sleep(0.05)
+    
+    time.sleep(0.3)  # Wait for messages
+    
+    # Pop messages from GMQ
+    print("\nPopping messages from GlobalMessageQueue...")
+    received = []
+    message = gmq.pop()
+    while message:
+        received.append(message)
+        print(f"  Received: {message}")
+        message = gmq.pop()
+    
+    print(f"\nResults:")
+    print(f"  Messages sent: 10")
+    print(f"  Messages received via GMQ: {len(received)}")
+    
+    if len(received) >= 8:
+        print("✓ TEST PASSED: GMQ working")
+        return True
+    else:
+        print("✗ TEST FAILED: Messages lost in GMQ")
+        return False
+
+
+def test_gmq_extended():
+    """Extended GMQ test - 30 seconds of operation."""
+    print("\n" + "="*60)
+    print("TEST: GlobalMessageQueue Extended (30 seconds)")
+    print("="*60)
+    
+    from pyossia import ossia, LocalDevice, ValueType
+    from pythonosc.udp_client import SimpleUDPClient
+    
+    # Setup
+    ld = LocalDevice('gmq_extended')
+    ld.create_osc_server('127.0.0.1', 19025, 19026, False)
+    
+    node = ld.add_node('/counter')
+    param = node.create_parameter(ValueType.Int)
+    
+    gmq = ossia.GlobalMessageQueue(ld)
+    osc_client = SimpleUDPClient('127.0.0.1', 19025)
+    
+    print("Setup complete, starting extended test...")
+    
+    # Receiver thread
+    received_count = [0]
+    stop_flag = threading.Event()
+    
+    def receiver():
+        while not stop_flag.is_set():
+            msg = gmq.pop()
+            if msg:
+                received_count[0] += 1
+            else:
+                time.sleep(0.01)  # Small sleep when no messages
+    
+    receiver_thread = threading.Thread(target=receiver, daemon=True)
+    receiver_thread.start()
+    
+    # Send messages for 30 seconds
+    sent_count = 0
+    start_time = time.time()
+    
+    while time.time() - start_time < 30:
+        osc_client.send_message('/counter', sent_count)
+        sent_count += 1
+        time.sleep(0.1)  # 10 messages per second
+        
+        elapsed = int(time.time() - start_time)
+        if sent_count % 50 == 0:
+            print(f"  {elapsed}s: sent {sent_count}, received {received_count[0]}")
+    
+    time.sleep(0.5)  # Final flush
+    stop_flag.set()
+    
+    loss_rate = (sent_count - received_count[0]) / sent_count * 100 if sent_count > 0 else 100
+    
+    print(f"\nResults:")
+    print(f"  Duration: 30 seconds")
+    print(f"  Messages sent: {sent_count}")
+    print(f"  Messages received: {received_count[0]}")
+    print(f"  Loss rate: {loss_rate:.2f}%")
+    
+    if loss_rate < 5:
+        print("✓ TEST PASSED: GMQ reliable over extended period")
+        return True
+    else:
+        print("✗ TEST FAILED: High message loss in GMQ")
+        return False
+
+
+def main():
+    print("="*60)
+    print("PYOSSIA GLOBALMESSAGEQUEUE TEST (Without python-daemon)")
+    print("="*60)
+    print("\nThis tests GMQ reliability now that python-daemon is removed.")
+    print("GMQ was previously replaced with HTTP polling due to unreliability")
+    print("which was likely caused by python-daemon thread corruption.")
+    
+    results = []
+    
+    results.append(("GMQ Basic", test_gmq_basic()))
+    results.append(("GMQ Extended (30s)", test_gmq_extended()))
+    
+    # Summary
+    print("\n" + "="*60)
+    print("SUMMARY")
+    print("="*60)
+    
+    all_passed = True
+    for name, passed in results:
+        status = "✓ PASSED" if passed else "✗ FAILED"
+        print(f"  {name}: {status}")
+        if not passed:
+            all_passed = False
+    
+    print("\n" + "="*60)
+    if all_passed:
+        print("OVERALL: ✓ ALL TESTS PASSED")
+        print("\nGlobalMessageQueue is reliable without python-daemon!")
+        print("Consider re-enabling GMQ in NodeEngine.")
+    else:
+        print("OVERALL: ✗ SOME TESTS FAILED")
+        print("\nGMQ has issues beyond python-daemon. Keep using NNG.")
+    print("="*60)
+    
+    return 0 if all_passed else 1
+
+
+if __name__ == "__main__":
+    sys.exit(main())
diff --git a/tests/test_pyossia_midi.py b/tests/test_pyossia_midi.py
new file mode 100644
index 0000000..ff07343
--- /dev/null
+++ b/tests/test_pyossia_midi.py
@@ -0,0 +1,171 @@
+#!/usr/bin/env python3
+"""
+Test pyossia MidiDevice functionality.
+
+FINDINGS (2024):
+================
+pyossia.MidiDevice exists but CANNOT be instantiated from Python:
+
+1. Constructor requires: ossia_network_context, str name, ossia::net::midi::midi_info
+   - ossia_network_context is NOT exposed in Python bindings
+   - midi_info requires handle attribute which throws TypeError on access
+
+2. list_midi_devices() returns MidiInfo objects but:
+   - MidiInfo.handle throws: TypeError: Unregistered type : libremidi::port_information
+
+3. Attempting MidiDevice() with any arguments fails:
+   - MidiDevice("name") → TypeError (needs 3 args)
+   - MidiDevice("name", "input") → TypeError (needs 3 args)  
+   - No way to get ossia_network_context
+
+CONCLUSION:
+- MidiDevice bindings are incomplete
+- MIDI-OSC bridging via pyossia is NOT possible with current Python bindings
+- Alternative: Use mido for MIDI + pythonosc/pyossia.OSCDevice for OSC routing
+"""
+
+import sys
+sys.path.insert(0, '/home/stagelab/src/cuems-engine/src')
+sys.path.insert(0, '/home/stagelab/src/cuems-utils/src')
+
+
+def test_midi_device_availability():
+    """Test if MidiDevice can be imported."""
+    print("\n" + "="*60)
+    print("TEST: MidiDevice Import/Availability")
+    print("="*60)
+    
+    try:
+        from pyossia import ossia
+        MidiDevice = ossia.MidiDevice
+        print(f"✓ MidiDevice class exists: {MidiDevice}")
+        return True
+    except (ImportError, AttributeError) as e:
+        print(f"✗ MidiDevice not available: {e}")
+        return False
+
+
+def test_midi_device_instantiation():
+    """Test if MidiDevice can be instantiated."""
+    print("\n" + "="*60)
+    print("TEST: MidiDevice Instantiation (Expected to FAIL)")
+    print("="*60)
+    
+    from pyossia import ossia
+    MidiDevice = ossia.MidiDevice
+    
+    # Try various instantiation attempts
+    attempts = [
+        ("MidiDevice()", lambda: MidiDevice()),
+        ("MidiDevice('test')", lambda: MidiDevice('test')),
+        ("MidiDevice('test', 'input')", lambda: MidiDevice('test', 'input')),
+    ]
+    
+    for desc, func in attempts:
+        try:
+            result = func()
+            print(f"✓ {desc} succeeded: {result}")
+            return True  # Unexpected success
+        except TypeError as e:
+            print(f"✗ {desc} → TypeError: {e}")
+        except Exception as e:
+            print(f"✗ {desc} → {type(e).__name__}: {e}")
+    
+    print("\nReason: MidiDevice requires ossia_network_context which isn't exposed")
+    return False  # Expected failure
+
+
+def test_list_midi_devices():
+    """Test list_midi_devices() function."""
+    print("\n" + "="*60)
+    print("TEST: list_midi_devices()")
+    print("="*60)
+    
+    from pyossia import ossia
+    
+    try:
+        devices = ossia.list_midi_devices()
+        print(f"✓ list_midi_devices() returned: {type(devices)}")
+        print(f"  Count: {len(devices)}")
+        
+        for i, dev in enumerate(devices):
+            print(f"\n  Device {i}: {dev}")
+            print(f"    Type: {type(dev)}")
+            
+            # Try to access attributes
+            for attr in ['handle', 'type', 'virtual', 'port', 'name']:
+                try:
+                    val = getattr(dev, attr)
+                    print(f"    {attr}: {val}")
+                except TypeError as e:
+                    print(f"    {attr}: TypeError - {e}")
+                except AttributeError:
+                    pass
+        
+        return len(devices) > 0
+    except Exception as e:
+        print(f"✗ list_midi_devices() failed: {e}")
+        return False
+
+
+def test_midi_with_mido():
+    """Compare with mido for MIDI access."""
+    print("\n" + "="*60)
+    print("TEST: mido MIDI Access (Alternative)")
+    print("="*60)
+    
+    try:
+        import mido
+        
+        print("Input ports:")
+        for port in mido.get_input_names():
+            print(f"  IN:  {port}")
+        
+        print("\nOutput ports:")
+        for port in mido.get_output_names():
+            print(f"  OUT: {port}")
+        
+        print("\n✓ mido can access MIDI ports directly")
+        return True
+    except Exception as e:
+        print(f"✗ mido failed: {e}")
+        return False
+
+
+def main():
+    print("="*60)
+    print("PYOSSIA MIDIDEVICE TEST")
+    print("="*60)
+    print("\nTesting if pyossia can be used for MIDI-OSC bridging...")
+    
+    results = []
+    
+    results.append(("MidiDevice Available", test_midi_device_availability()))
+    results.append(("MidiDevice Instantiation", test_midi_device_instantiation()))
+    results.append(("list_midi_devices()", test_list_midi_devices()))
+    results.append(("mido Alternative", test_midi_with_mido()))
+    
+    # Summary
+    print("\n" + "="*60)
+    print("SUMMARY")
+    print("="*60)
+    
+    for name, passed in results:
+        status = "✓ PASSED" if passed else "✗ FAILED"
+        print(f"  {name}: {status}")
+    
+    print("\n" + "="*60)
+    print("CONCLUSION: pyossia MidiDevice cannot be used from Python")
+    print("")
+    print("The bindings are incomplete:")
+    print("- ossia_network_context not exposed")
+    print("- MidiInfo.handle throws TypeError (unregistered type)")
+    print("")
+    print("RECOMMENDATION: Use mido + OSCDevice for MIDI-OSC routing")
+    print("="*60)
+    
+    return 0
+
+
+if __name__ == "__main__":
+    sys.exit(main())
diff --git a/tests/test_pyossia_osc.py b/tests/test_pyossia_osc.py
new file mode 100644
index 0000000..983651d
--- /dev/null
+++ b/tests/test_pyossia_osc.py
@@ -0,0 +1,258 @@
+"""Tests for pyossia OSC client and server functionality.
+
+These tests verify basic OSC communication using pyossia, replacing
+the old pythonosc-based tests.
+"""
+import time
+from pyossia import ossia, ValueType
+
+
+def test_osc_device_creation():
+    """Test creating an OSC device."""
+    # Arrange & Act
+    device = ossia.OSCDevice("test_client", "127.0.0.1", 19990, 19991)
+    
+    # Assert
+    assert device is not None
+    assert device.root_node is not None
+
+
+def test_osc_device_add_node():
+    """Test adding nodes to OSC device."""
+    # Arrange
+    device = ossia.OSCDevice("test_client", "127.0.0.1", 19992, 19993)
+    
+    # Act
+    node = device.root_node.add_node("/test")
+    param = node.create_parameter(ValueType.Int)
+    
+    # Assert
+    assert node is not None
+    assert param is not None
+    assert param.value_type == ValueType.Int
+
+
+def test_osc_parameter_value_setting():
+    """Test setting parameter values."""
+    # Arrange
+    device = ossia.OSCDevice("test_client", "127.0.0.1", 19994, 19995)
+    node = device.root_node.add_node("/test")
+    param = node.create_parameter(ValueType.Int)
+    
+    # Act
+    param.value = 42
+    
+    # Assert
+    assert param.value == 42
+
+
+def test_osc_parameter_callback():
+    """Test parameter callbacks."""
+    # Arrange
+    callback_values = []
+    
+    def callback(value):
+        callback_values.append(value)
+    
+    device = ossia.OSCDevice("test_client", "127.0.0.1", 19996, 19997)
+    node = device.root_node.add_node("/test")
+    param = node.create_parameter(ValueType.Int)
+    param.add_callback(callback)
+    
+    # Act
+    param.value = 10
+    time.sleep(0.01)  # Allow callback to fire
+    param.value = 20
+    time.sleep(0.01)
+    
+    # Assert
+    assert 10 in callback_values
+    assert 20 in callback_values
+
+
+def test_osc_multiple_parameters():
+    """Test creating multiple parameters with different types."""
+    # Arrange
+    device = ossia.OSCDevice("test_client", "127.0.0.1", 19998, 19999)
+    root = device.root_node
+    
+    # Act
+    int_param = root.add_node("/int").create_parameter(ValueType.Int)
+    float_param = root.add_node("/float").create_parameter(ValueType.Float)
+    string_param = root.add_node("/string").create_parameter(ValueType.String)
+    list_param = root.add_node("/list").create_parameter(ValueType.List)
+    
+    int_param.value = 42
+    float_param.value = 3.14
+    string_param.value = "hello"
+    list_param.value = [1, 2, 3]
+    
+    # Assert
+    assert int_param.value == 42
+    assert abs(float_param.value - 3.14) < 0.01
+    assert string_param.value == "hello"
+    assert list_param.value == [1, 2, 3]
+
+
+def test_osc_bundle_sending():
+    """Test sending OSC bundles."""
+    # Arrange
+    sender = ossia.OSCDevice("sender", "127.0.0.1", 20000, 20001)
+    receiver = ossia.LocalDevice("receiver")
+    
+    # Create parameters
+    param1 = sender.root_node.add_node("/param1").create_parameter(ValueType.Int)
+    param2 = sender.root_node.add_node("/param2").create_parameter(ValueType.Float)
+    
+    # Act - Create and send bundle
+    bundle = ossia.Bundle()
+    bundle.append(param1, 100)
+    bundle.append(param2, 2.5)
+    sender.push_bundle(bundle)
+    
+    # Assert - Bundle was created and sent without error
+    assert len(bundle) == 2
+
+
+def test_osc_bundle_with_list_parameter():
+    """Test sending OSC bundles with list parameters (DMX use case)."""
+    # Arrange
+    sender = ossia.OSCDevice("sender", "127.0.0.1", 20002, 20003)
+    
+    # Create list parameter for DMX-style data
+    frame_param = sender.root_node.add_node("/frame").create_parameter(ValueType.List)
+    fade_param = sender.root_node.add_node("/fade").create_parameter(ValueType.Float)
+    
+    # Act - Create bundle with list data
+    bundle = ossia.Bundle()
+    dmx_data = [1, 0, 255, 1, 128, 2, 64]  # universe 1, ch0=255, ch1=128, ch2=64
+    bundle.append(frame_param, dmx_data)
+    bundle.append(fade_param, 2.0)
+    
+    sender.push_bundle(bundle)
+    
+    # Assert
+    assert len(bundle) == 2
+
+
+def test_local_device_communication():
+    """Test communication between local devices."""
+    # Arrange
+    callback_values = []
+    
+    def callback(value):
+        callback_values.append(value)
+    
+    device = ossia.LocalDevice("test_device")
+    node = device.root_node.add_node("/test")
+    param = node.create_parameter(ValueType.Int)
+    param.add_callback(callback)
+    
+    # Act
+    param.value = 50
+    time.sleep(0.01)
+    param.value = 60
+    time.sleep(0.01)
+    
+    # Assert
+    assert param.value == 60
+    assert 50 in callback_values
+    assert 60 in callback_values
+
+
+def test_osc_parameter_string_values():
+    """Test OSC parameters with string values."""
+    # Arrange
+    device = ossia.OSCDevice("test", "127.0.0.1", 20004, 20005)
+    node = device.root_node.add_node("/test_string")
+    param = node.create_parameter(ValueType.String)
+    
+    # Act
+    param.value = "now"
+    
+    # Assert
+    assert param.value == "now"
+    
+    # Act
+    param.value = "01:00:00:00"
+    
+    # Assert
+    assert param.value == "01:00:00:00"
+
+
+def test_osc_bundle_multiple_messages():
+    """Test bundle with multiple messages to same parameter."""
+    # Arrange
+    sender = ossia.OSCDevice("sender", "127.0.0.1", 20006, 20007)
+    param = sender.root_node.add_node("/frame").create_parameter(ValueType.List)
+    
+    # Act - Multiple frames in one bundle
+    bundle = ossia.Bundle()
+    bundle.append(param, [1, 0, 255])  # Universe 1
+    bundle.append(param, [2, 0, 128])  # Universe 2
+    bundle.append(param, [3, 0, 64])   # Universe 3
+    
+    sender.push_bundle(bundle)
+    
+    # Assert
+    assert len(bundle) == 3
+
+
+def test_osc_device_node_hierarchy():
+    """Test creating nested node hierarchies."""
+    # Arrange
+    device = ossia.OSCDevice("test", "127.0.0.1", 20008, 20009)
+    root = device.root_node
+    
+    # Act
+    parent = root.add_node("/parent")
+    child = parent.add_node("/child")
+    grandchild = child.add_node("/grandchild")
+    param = grandchild.create_parameter(ValueType.Int)
+    param.value = 123
+    
+    # Assert
+    assert param.value == 123
+    # Verify hierarchy by checking the parameter exists
+    assert param is not None
+    assert grandchild is not None
+    assert child is not None
+    assert parent is not None
+
+
+def test_osc_parameter_types():
+    """Test all commonly used OSC parameter types."""
+    # Arrange
+    device = ossia.OSCDevice("test", "127.0.0.1", 20010, 20011)
+    root = device.root_node
+    
+    # Act & Assert - Int
+    int_param = root.add_node("/int_test").create_parameter(ValueType.Int)
+    int_param.value = 42
+    assert int_param.value == 42
+    assert int_param.value_type == ValueType.Int
+    
+    # Act & Assert - Float
+    float_param = root.add_node("/float_test").create_parameter(ValueType.Float)
+    float_param.value = 3.14159
+    assert abs(float_param.value - 3.14159) < 0.0001
+    assert float_param.value_type == ValueType.Float
+    
+    # Act & Assert - String
+    string_param = root.add_node("/string_test").create_parameter(ValueType.String)
+    string_param.value = "test_string"
+    assert string_param.value == "test_string"
+    assert string_param.value_type == ValueType.String
+    
+    # Act & Assert - Bool
+    bool_param = root.add_node("/bool_test").create_parameter(ValueType.Bool)
+    bool_param.value = True
+    assert bool_param.value == True
+    assert bool_param.value_type == ValueType.Bool
+    
+    # Act & Assert - List
+    list_param = root.add_node("/list_test").create_parameter(ValueType.List)
+    list_param.value = [1, 2, 3, 4, 5]
+    assert list_param.value == [1, 2, 3, 4, 5]
+    assert list_param.value_type == ValueType.List
+
diff --git a/tests/test_pyossia_without_daemon.py b/tests/test_pyossia_without_daemon.py
new file mode 100644
index 0000000..376836a
--- /dev/null
+++ b/tests/test_pyossia_without_daemon.py
@@ -0,0 +1,313 @@
+#!/usr/bin/env python3
+"""
+Test pyossia OSC reliability without python-daemon.
+
+This test verifies whether pyossia can reliably send OSC messages
+now that python-daemon has been removed from the codebase.
+
+The historical "unreliability" of pyossia with xjadeo was likely
+caused by python-daemon corrupting pyossia's sockets/threads.
+"""
+
+import sys
+import time
+import subprocess
+from threading import Thread, Event
+
+# Add source path
+sys.path.insert(0, '/home/stagelab/src/cuems-engine/src')
+sys.path.insert(0, '/home/stagelab/src/cuems-utils/src')
+
+from cuemsutils.log import Logger
+
+
+def test_pyossia_osc_client():
+    """Test basic pyossia OSC client functionality."""
+    print("\n" + "="*60)
+    print("TEST 1: pyossia OSC Client Basic Test")
+    print("="*60)
+    
+    try:
+        from pyossia.ossia_python import OSCDevice
+        print("✓ pyossia.ossia_python.OSCDevice imported successfully")
+    except ImportError as e:
+        print(f"✗ Failed to import OSCDevice: {e}")
+        return False
+    
+    # Create a simple OSC server to receive messages
+    try:
+        from pythonosc.osc_server import ThreadingOSCUDPServer
+        from pythonosc.dispatcher import Dispatcher
+        
+        received_messages = []
+        
+        def message_handler(address, *args):
+            received_messages.append((address, args))
+            print(f"  Received: {address} = {args}")
+        
+        dispatcher = Dispatcher()
+        dispatcher.set_default_handler(message_handler)
+        
+        # Start server on port 19001
+        server = ThreadingOSCUDPServer(("127.0.0.1", 19001), dispatcher)
+        server_thread = Thread(target=server.serve_forever, daemon=True)
+        server_thread.start()
+        print("✓ Test OSC server started on port 19001")
+        
+    except Exception as e:
+        print(f"✗ Failed to start test server: {e}")
+        return False
+    
+    # Create pyossia OSC client
+    try:
+        # OSCDevice(name, host, remote_port, local_port)
+        client = OSCDevice("test_client", "127.0.0.1", 19001, 19002)
+        print("✓ pyossia OSCDevice created successfully")
+        time.sleep(0.2)  # Allow connection to establish
+    except Exception as e:
+        print(f"✗ Failed to create OSCDevice: {e}")
+        server.shutdown()
+        return False
+    
+    # Create a test node and parameter
+    try:
+        node = client.add_node("/test/value")
+        from pyossia import ValueType
+        param = node.create_parameter(ValueType.Int)
+        print("✓ Node and parameter created")
+    except Exception as e:
+        print(f"✗ Failed to create node/parameter: {e}")
+        server.shutdown()
+        return False
+    
+    # Send test messages
+    print("\nSending 10 test messages...")
+    success_count = 0
+    for i in range(10):
+        try:
+            param.push_value(i * 10)
+            time.sleep(0.05)  # Small delay between messages
+            success_count += 1
+        except Exception as e:
+            print(f"  ✗ Failed to send message {i}: {e}")
+    
+    time.sleep(0.3)  # Wait for messages to arrive
+    server.shutdown()
+    
+    print(f"\nResults:")
+    print(f"  Messages sent: {success_count}/10")
+    print(f"  Messages received: {len(received_messages)}")
+    
+    if len(received_messages) >= 8:  # Allow some tolerance
+        print("✓ TEST PASSED: pyossia OSC client works reliably")
+        return True
+    else:
+        print("✗ TEST FAILED: Messages lost")
+        return False
+
+
+def test_pyossia_set_value():
+    """Test pyossia set_value method (used in cue code)."""
+    print("\n" + "="*60)
+    print("TEST 2: pyossia set_value() Method Test")
+    print("="*60)
+    
+    try:
+        from pyossia.ossia_python import OSCDevice
+        from pyossia import ValueType
+        from pythonosc.osc_server import ThreadingOSCUDPServer
+        from pythonosc.dispatcher import Dispatcher
+        
+        received = []
+        
+        def handler(address, *args):
+            received.append((address, args))
+            print(f"  Received: {address} = {args}")
+        
+        dispatcher = Dispatcher()
+        dispatcher.set_default_handler(handler)
+        
+        server = ThreadingOSCUDPServer(("127.0.0.1", 19003), dispatcher)
+        server_thread = Thread(target=server.serve_forever, daemon=True)
+        server_thread.start()
+        
+        # Create client with multiple endpoints (like VideoClient)
+        client = OSCDevice("video_test", "127.0.0.1", 19003, 19004)
+        time.sleep(0.2)
+        
+        # Create endpoints similar to xjadeo config
+        endpoints = {
+            '/jadeo/load': ValueType.String,
+            '/jadeo/offset': ValueType.Int,
+            '/jadeo/cmd': ValueType.String,
+        }
+        
+        for path, vtype in endpoints.items():
+            node = client.add_node(path)
+            node.create_parameter(vtype)
+        
+        print("✓ Created video player-like endpoints")
+        
+        # Test set_value on each endpoint
+        test_values = [
+            ('/jadeo/load', '/path/to/video.mov'),
+            ('/jadeo/offset', -1500),
+            ('/jadeo/cmd', 'midi connect Midi Through'),
+        ]
+        
+        print("\nSending test values via set_value()...")
+        for path, value in test_values:
+            try:
+                node = client.find_node(path)
+                if node and node.parameter:
+                    node.parameter.value = value
+                    print(f"  Sent: {path} = {value}")
+                else:
+                    print(f"  ✗ Node not found: {path}")
+            except Exception as e:
+                print(f"  ✗ Error setting {path}: {e}")
+        
+        time.sleep(0.3)
+        server.shutdown()
+        
+        print(f"\nResults:")
+        print(f"  Values sent: {len(test_values)}")
+        print(f"  Values received: {len(received)}")
+        
+        if len(received) >= 2:
+            print("✓ TEST PASSED: set_value() works reliably")
+            return True
+        else:
+            print("✗ TEST FAILED: Values not received")
+            return False
+            
+    except Exception as e:
+        print(f"✗ TEST FAILED with exception: {e}")
+        import traceback
+        traceback.print_exc()
+        return False
+
+
+def test_pyossia_long_running():
+    """Test pyossia reliability over extended period."""
+    print("\n" + "="*60)
+    print("TEST 3: pyossia Long-Running Reliability Test (30 seconds)")
+    print("="*60)
+    
+    try:
+        from pyossia.ossia_python import OSCDevice
+        from pyossia import ValueType
+        from pythonosc.osc_server import ThreadingOSCUDPServer
+        from pythonosc.dispatcher import Dispatcher
+        
+        received_count = [0]  # Use list for mutable in closure
+        stop_event = Event()
+        
+        def handler(address, *args):
+            received_count[0] += 1
+        
+        dispatcher = Dispatcher()
+        dispatcher.set_default_handler(handler)
+        
+        server = ThreadingOSCUDPServer(("127.0.0.1", 19005), dispatcher)
+        server_thread = Thread(target=server.serve_forever, daemon=True)
+        server_thread.start()
+        
+        client = OSCDevice("long_test", "127.0.0.1", 19005, 19006)
+        time.sleep(0.2)
+        
+        node = client.add_node("/test/counter")
+        param = node.create_parameter(ValueType.Int)
+        
+        print("Sending messages for 30 seconds (10 per second)...")
+        sent_count = 0
+        start_time = time.time()
+        
+        while time.time() - start_time < 30:
+            try:
+                param.push_value(sent_count)
+                sent_count += 1
+                time.sleep(0.1)
+                
+                # Progress indicator
+                elapsed = int(time.time() - start_time)
+                if sent_count % 50 == 0:
+                    print(f"  {elapsed}s: sent {sent_count}, received {received_count[0]}")
+                    
+            except Exception as e:
+                print(f"  ✗ Error at message {sent_count}: {e}")
+                break
+        
+        time.sleep(0.5)
+        server.shutdown()
+        
+        loss_rate = (sent_count - received_count[0]) / sent_count * 100 if sent_count > 0 else 100
+        
+        print(f"\nResults:")
+        print(f"  Duration: 30 seconds")
+        print(f"  Messages sent: {sent_count}")
+        print(f"  Messages received: {received_count[0]}")
+        print(f"  Loss rate: {loss_rate:.2f}%")
+        
+        if loss_rate < 5:  # Less than 5% loss is acceptable
+            print("✓ TEST PASSED: pyossia reliable over extended period")
+            return True
+        else:
+            print("✗ TEST FAILED: High message loss rate")
+            return False
+            
+    except Exception as e:
+        print(f"✗ TEST FAILED with exception: {e}")
+        import traceback
+        traceback.print_exc()
+        return False
+
+
+def main():
+    print("="*60)
+    print("PYOSSIA RELIABILITY TEST (Without python-daemon)")
+    print("="*60)
+    print("\nThis test verifies pyossia OSC reliability now that")
+    print("python-daemon has been removed from the codebase.")
+    print("\nThe historical 'unreliability' was likely caused by")
+    print("python-daemon corrupting pyossia's sockets/threads.")
+    
+    results = []
+    
+    # Test 1: Basic OSC client
+    results.append(("Basic OSC Client", test_pyossia_osc_client()))
+    
+    # Test 2: set_value method
+    results.append(("set_value() Method", test_pyossia_set_value()))
+    
+    # Test 3: Long-running reliability
+    results.append(("Long-Running (30s)", test_pyossia_long_running()))
+    
+    # Summary
+    print("\n" + "="*60)
+    print("SUMMARY")
+    print("="*60)
+    
+    all_passed = True
+    for name, passed in results:
+        status = "✓ PASSED" if passed else "✗ FAILED"
+        print(f"  {name}: {status}")
+        if not passed:
+            all_passed = False
+    
+    print("\n" + "="*60)
+    if all_passed:
+        print("OVERALL: ✓ ALL TESTS PASSED")
+        print("\npyossia appears reliable without python-daemon!")
+        print("Consider removing oscsend subprocess workarounds.")
+    else:
+        print("OVERALL: ✗ SOME TESTS FAILED")
+        print("\npyossia may have intrinsic issues beyond python-daemon.")
+        print("Consider Option B: custom routing with python-osc + mido.")
+    print("="*60)
+    
+    return 0 if all_passed else 1
+
+
+if __name__ == "__main__":
+    sys.exit(main())
diff --git a/tests/test_pythonosc.py b/tests/test_pythonosc.py
new file mode 100644
index 0000000..ca7d643
--- /dev/null
+++ b/tests/test_pythonosc.py
@@ -0,0 +1,87 @@
+from cuemsengine.osc.PyOsc import PyOscClient, PyOscServer
+
+from pythonosc.osc_server import ThreadingOSCUDPServer
+from pythonosc.udp_client import SimpleUDPClient
+from pythonosc.osc_message import OscMessage
+from unittest.mock import patch
+
+def test_new_osc_client():
+    # Arrange
+    # Act
+    client = PyOscClient()
+    # Assert
+    assert client.host == "127.0.0.1"
+    assert client.port == 10001
+    assert isinstance(client.client, SimpleUDPClient)
+
+def test_client_call_send_message():
+    # Arrange
+    client = PyOscClient()
+    with patch.object(SimpleUDPClient, "send_message") as mock_send_message:
+        # Act
+        client.send_message("/test", 1, 2, 3)
+        # Assert
+        mock_send_message.assert_called_once_with("/test", (1, 2, 3))
+
+def test_server_call_start():
+    # Arrange
+    server = PyOscServer()
+    with patch.object(ThreadingOSCUDPServer, "serve_forever") as mock_serve_forever:
+        # Act
+        server.start()
+        # Assert
+        mock_serve_forever.assert_called_once()
+
+
+## Helper classes
+class store_response():
+        def __init__(self):
+            self.responses = {}
+        
+        def set(self, address, *args) -> tuple[str, str]:
+            self.responses[address] = [value for value in args]
+            return (address, "OK")
+
+server_res = store_response()
+server_endpoints = {
+    "/test": server_res.set,
+    "/test2": server_res.set
+}
+
+def test_server_endpoints():
+    # Arrange
+    from pythonosc.dispatcher import Handler
+    # Act
+    server = PyOscServer(endpoints = server_endpoints)
+    # Assert
+    assert server.server.server_address == ('127.0.0.1', 10001)
+    assert len(server.handlers) == 2
+    assert ["/test", "/test2"] == [i for i in server.handlers.keys()]
+    assert isinstance(server.handlers["/test"], Handler)
+    assert isinstance(server.handlers["/test2"], Handler)
+    assert server_res.responses == {}
+
+def test_server_start():
+    # Arrange
+    server = PyOscServer(endpoints = server_endpoints)
+    server.start()
+    client = PyOscClient()
+
+    # Act
+    client.send_message("/test", 30)
+    msg = client.get_first_message()
+    msg2 = client.send_with_response("/test2", [30, 40])
+    
+    # Assert
+    assert server_res.responses["/test"] == [30]
+    assert isinstance(msg, OscMessage)
+    assert msg.address == "/test"
+    assert msg.params == ["OK"]
+    
+    assert server_res.responses["/test2"] == [[30, 40]]
+    assert isinstance(msg2, OscMessage)
+    assert msg2.address == "/test2"
+    assert msg2.params == ["OK"]
+
+    # Cleanup
+    server.stop()
diff --git a/tests/test_version.py b/tests/test_version.py
new file mode 100644
index 0000000..835a7aa
--- /dev/null
+++ b/tests/test_version.py
@@ -0,0 +1,53 @@
+from cuemsengine import __version__ as version
+import re
+
+def is_zero_or_digit(s: str) -> bool:
+    if s[0] == "0":
+        return len(s) == 1
+    return s.isdigit()
+
+def is_alpha_beta_rc(s: str) -> bool:
+    p = r"^(?:0|[1-9]\d*)(?:a[1-9]\d*|b[1-9]\d*|rc[1-9]\d*)?$"
+    sre = re.match(p, s)
+    if sre is None:
+        return False
+    return sre.span() == (0, len(s))
+
+def test_zero_or_digit():
+    assert is_zero_or_digit("0")
+    assert is_zero_or_digit("1")
+    assert is_zero_or_digit("123")
+    assert not is_zero_or_digit("0123")
+    assert not is_zero_or_digit("0123a")
+
+def test_alpha_beta_rc():
+    assert is_alpha_beta_rc("1a1")
+    assert is_alpha_beta_rc("1b1")
+    assert is_alpha_beta_rc("1rc1")
+    assert is_alpha_beta_rc("0")
+    assert is_alpha_beta_rc("1")
+    assert not is_alpha_beta_rc("01")
+    assert not is_alpha_beta_rc("1a01")
+    assert not is_alpha_beta_rc("1a")
+    assert not is_alpha_beta_rc("2a0")
+    assert not is_alpha_beta_rc("1a1a")
+    assert not is_alpha_beta_rc("1b1b")
+    assert not is_alpha_beta_rc("1rc1rc")
+
+def test_version():
+    version_split = version.split(".")
+    assert isinstance(version, str)
+    assert len(version) > 0
+    assert len(version_split) in (3, 4)
+    assert is_zero_or_digit(version_split[0])
+    assert is_zero_or_digit(version_split[1])
+
+    if len(version_split) == 4:
+        # Allow for a revision (post) number after a dot
+        assert is_zero_or_digit(version_split[2])
+        assert version_split[3][:4] == "post"
+        assert version_split[3][4] != "0"
+        assert version_split[3][4:].isdigit()
+    else:
+        # Allow for a revision (alpha, beta, rc) number without a dot
+        assert is_alpha_beta_rc(version_split[2])
diff --git a/tests/testdev_cleanup_demo.py b/tests/testdev_cleanup_demo.py
new file mode 100644
index 0000000..3f868f6
--- /dev/null
+++ b/tests/testdev_cleanup_demo.py
@@ -0,0 +1,166 @@
+"""
+Demonstration test file showing the new cleanup mechanisms.
+
+This file demonstrates how to use the new pytest cleanup fixtures
+to prevent background processes from persisting after Ctrl+C.
+"""
+
+import pytest
+import time
+import threading
+import multiprocessing
+from unittest.mock import patch
+
+from cuemsengine import ControllerEngine, NodeEngine
+
+
+@pytest.mark.cuems
+def test_engine_with_automatic_cleanup(engine_cleanup):
+    """Demonstrate automatic engine cleanup on test interruption"""
+    print("\n=== Testing engine cleanup mechanism ===")
+    
+    # Create engines with automatic cleanup registration
+    controller = engine_cleanup(ControllerEngine(with_mtc=False))
+    node = engine_cleanup(NodeEngine(with_mtc=False))
+    
+    print(f"Created controller engine: {controller.node_name}")
+    print(f"Created node engine: {node.node_name}")
+    
+    # Simulate some work
+    time.sleep(0.1)
+    
+    # These engines will be automatically cleaned up by the fixture
+    assert controller.cm is not None
+    assert node.cm is not None
+    
+    print("Engines created successfully - cleanup will be automatic")
+
+
+@pytest.mark.cuems
+def test_process_with_automatic_cleanup(process_cleanup):
+    """Demonstrate automatic process cleanup on test interruption"""
+    print("\n=== Testing process cleanup mechanism ===")
+    
+    def worker_function():
+        """Simulate a background worker"""
+        while True:
+            time.sleep(0.1)
+    
+    # Create a process with automatic cleanup registration
+    worker_process = process_cleanup(
+        multiprocessing.Process(target=worker_function, name="TestWorker")
+    )
+    worker_process.start()
+    
+    print(f"Started worker process: {worker_process.name}")
+    assert worker_process.is_alive()
+    
+    # Simulate some work
+    time.sleep(0.1)
+    
+    print("Process started successfully - cleanup will be automatic")
+
+
+@pytest.mark.cuems
+def test_combined_cleanup(engine_cleanup, process_cleanup, cuems_cleaner):
+    """Demonstrate combined cleanup of engines and processes"""
+    print("\n=== Testing combined cleanup mechanism ===")
+    
+    # Create engine with cleanup
+    engine = engine_cleanup(ControllerEngine(with_mtc=False))
+    
+    # Create process with cleanup
+    def background_task():
+        for i in range(100):
+            time.sleep(0.1)
+    
+    bg_process = process_cleanup(
+        multiprocessing.Process(target=background_task, name="BackgroundTask")
+    )
+    bg_process.start()
+    
+    # Add custom cleanup hook
+    cleanup_called = []
+    def custom_cleanup():
+        cleanup_called.append(True)
+        print("Custom cleanup function called")
+    
+    cuems_cleaner.add_cleanup_hook(custom_cleanup)
+    
+    print(f"Engine: {engine.node_name}")
+    print(f"Process: {bg_process.name} (alive: {bg_process.is_alive()})")
+    
+    # All resources will be cleaned up automatically
+    assert engine.cm is not None
+    assert bg_process.is_alive()
+    
+    print("Combined resources created - all will be cleaned up automatically")
+
+
+def test_cleanup_on_exception(engine_cleanup):
+    """Demonstrate cleanup when test raises an exception"""
+    print("\n=== Testing cleanup on exception ===")
+    
+    # Create engine that should be cleaned up even if test fails
+    engine = engine_cleanup(ControllerEngine(with_mtc=False))
+    
+    print(f"Created engine: {engine.node_name}")
+    
+    # Uncomment the next line to test exception handling
+    # raise ValueError("This is a test exception")
+    
+    assert engine.cm is not None
+    print("Test completed normally")
+
+
+@pytest.mark.slow
+def test_long_running_with_cleanup(engine_cleanup, process_cleanup):
+    """Demonstrate cleanup for long-running tests (try Ctrl+C during this test)"""
+    print("\n=== Testing long-running test cleanup ===")
+    print("Try pressing Ctrl+C during this test to see cleanup in action")
+    
+    # Create multiple resources
+    engines = []
+    processes = []
+    
+    for i in range(3):
+        engine = engine_cleanup(ControllerEngine(with_mtc=False))
+        engines.append(engine)
+        print(f"Created engine {i}: {engine.node_name}")
+    
+    def worker(worker_id):
+        while True:
+            print(f"Worker {worker_id} is working...")
+            time.sleep(1)
+    
+    for i in range(2):
+        process = process_cleanup(
+            multiprocessing.Process(target=worker, args=(i,), name=f"Worker{i}")
+        )
+        process.start()
+        processes.append(process)
+        print(f"Started worker process {i}")
+    
+    print("\n" + "="*50)
+    print("PRESS Ctrl+C NOW TO TEST CLEANUP!")
+    print("="*50)
+    
+    # Simulate long-running work
+    for i in range(30):  # 30 seconds
+        time.sleep(1)
+        print(f"Working... {i+1}/30 seconds")
+        
+        # Verify resources are still alive
+        for engine in engines:
+            assert engine.cm is not None
+        
+        for process in processes:
+            if not process.is_alive():
+                print(f"Process {process.name} died unexpectedly")
+    
+    print("Long-running test completed successfully")
+
+
+if __name__ == "__main__":
+    print("Run this with: pytest tests/test_cleanup_demo.py -v -s")
+    print("Try pressing Ctrl+C during the long_running test to see cleanup in action") 
diff --git a/tests/testdev_ossia_oscquery.py b/tests/testdev_ossia_oscquery.py
new file mode 100644
index 0000000..2c4ed3b
--- /dev/null
+++ b/tests/testdev_ossia_oscquery.py
@@ -0,0 +1,408 @@
+from cuemsengine.osc.OssiaServer import OssiaServer
+from cuemsengine.osc.OssiaClient import OssiaClient
+
+from pyossia import ValueType
+
+from .fixtures import ossia_client_factory, ossia_server_factory
+from .helpers import timeout
+from pytest import raises
+
+def test_oscquery_server_in_separate_process(process_cleanup):
+    # ARRANGE
+    from multiprocessing import Process, Queue
+    from time import sleep
+    from cuemsengine.osc.helpers import ServerDevices
+
+    LOCAL = 9102
+    
+    server_res = Queue()
+
+    # Create OssiaServer in separate process
+    def run_server(result_queue):
+        server = OssiaServer(
+            name="TestOSCQueryServer",
+            endpoints={
+                "/test": [
+                    ValueType.Int,
+                    lambda x: result_queue.put(x),
+                    10
+                ]
+            },
+            local_port=LOCAL,
+            server=ServerDevices.OSCQUERY
+        )
+        server.set_value("/test", 80)
+
+    server_process = process_cleanup(Process(target=run_server, args=(server_res,)))
+    server_process.start()
+
+    # ASSERT
+    # Wait for the process to complete
+    server_process.join(timeout=2)
+
+    # Check if the value was set correctly
+    assert not server_res.empty(), "No value was set in the server"
+    assert server_res.get() == 10, "Initial value was not set to 10"
+    assert server_res.get() == 80, "Modified value was not set to 80"
+
+    # Cleanup - now handled automatically by process_cleanup fixture
+    server_process.terminate()
+
+
+def test_oscquery_context_server_in_separate_process(ossia_server_factory, process_cleanup):
+    # ARRANGE
+    from multiprocessing import Process, Queue
+    from time import sleep
+    from cuemsengine.osc.helpers import ServerDevices
+    import threading
+
+    LOCAL = 9101
+    
+    server_res = Queue()
+    stop_event = threading.Event()
+
+    # Create OssiaServer in separate process
+    def run_server(result_queue, stop_event):
+        try:
+            with ossia_server_factory(
+                name="TestOSCQueryServer",
+                endpoints={
+                    "/test": [
+                        ValueType.Int,
+                        lambda x: result_queue.put(x),
+                        10
+                    ]
+                },
+                local_port=LOCAL,
+                server=ServerDevices.OSCQUERY
+            ) as server:
+                sleep(0.5)  # Allow time for setup
+                server.set_value("/test", 80)
+
+                while not stop_event.is_set():
+                    sleep(0.1)
+        except Exception as e:
+            error_type = type(e).__name__
+            print(f"Error type: {error_type}")
+            result_queue.put(error_type)
+
+    # Start process (register with process_cleanup for automatic cleanup)
+    server_process = process_cleanup(Process(target=run_server, args=(server_res, stop_event)))
+
+    server_process.start()
+
+    # Stop the processes
+    stop_event.set()
+    server_process.join(timeout=1)
+
+    # ASSERT
+    # Check if values were set correctly
+    assert not server_res.empty(), "No value was set in the server"
+    assert 10 == server_res.get(), "Server initial value was not set to 10"
+    assert 80 == server_res.get(), "Server value was not set to 80"
+
+    # Cleanup (handled by process_cleanup, but ensure it's terminated)
+    if server_process.is_alive():
+        server_process.terminate()
+
+def test_oscquery_context_client_fails_alone(ossia_client_factory, capfd):
+    # ARRANGE
+    from cuemsengine.osc.helpers import ClientDevices
+    from time import sleep
+    
+    LOCAL = 9097
+    error_type = None
+
+    client_res = []
+
+    # Create OssiaClient in separate within a timeout context manager
+    try:
+        with timeout(2):
+            with ossia_client_factory(
+                endpoints={
+                    "/test": [
+                        ValueType.Int,
+                        lambda x: client_res.append(x),
+                        20
+                    ]
+                },
+                local_port=LOCAL,
+                remote_type=ClientDevices.OSCQUERY
+            ) as client:
+                initial_value = client_res[0]
+                try:
+                    client.set_value("/test", 40)
+                except Exception as e:
+                    error_type = type(e).__name__
+    except TimeoutError:
+        assert False, "Timeout reached"
+
+    # out, err = capfd.readouterr()
+    # err_split = err.split("\n")[-1]
+    # for line in err_split:
+    #     assert line.split(" ")[4:] == [
+    #         "HTTP", "Error:", "Connection", "refused"
+    #     ], "Error missing in client"
+    # assert "Using remote device" in out, "Device bound"
+    # assert initial_value == 20, "Initial client value was not set"
+    # if error_type:
+    #     assert error_type == "ValueError", "Error type was not ValueError"
+    # else:
+    #     assert client_res[1] == 40, "Client value was not set"
+
+def test_oscquery_client_and_server_in_separate_processes(ossia_client_factory, ossia_server_factory, capfd, process_cleanup):
+    # ARRANGE
+    from multiprocessing import Process, Queue
+    from time import sleep
+    from cuemsengine.osc.helpers import ServerDevices, ClientDevices
+    import threading
+
+    server_res = Queue()
+    client_res = Queue()
+    stop_event = threading.Event()
+    SERVER_LOCAL = 9296
+    SERVER_REMOTE = 9396
+    CLIENT_LOCAL = 9297
+
+    # Create OssiaServer in separate process
+    def run_server(result_queue, stop_event):
+        with ossia_server_factory(
+            name="TestOSCQueryServer",
+            endpoints={
+                "/test": [
+                    ValueType.Int,
+                    lambda x: result_queue.put(x),
+                    10
+                ]
+            },
+            local_port=SERVER_LOCAL,
+            remote_port=SERVER_REMOTE,
+            server=ServerDevices.OSCQUERY
+        ) as server:
+            srv_out, srv_err = capfd.readouterr()
+            print(f"Server output: {srv_out}")
+            print(f"Server error: {srv_err}")
+            server.set_value("/test", 80)
+            while not stop_event.is_set():
+                sleep(0.1)
+
+    # Create OssiaClient in separate process  
+    def run_client(result_queue, stop_event):
+        with ossia_client_factory(
+            endpoints={"/test": [ValueType.Int, lambda x: result_queue.put(x), 20]},
+            remote_type=ClientDevices.OSCQUERY,
+            local_port=CLIENT_LOCAL,
+            remote_port=SERVER_REMOTE
+        ) as client:
+            client.set_value("/test", 40)
+            while not stop_event.is_set():
+                sleep(0.1)
+
+    # Start both processes (register with process_cleanup for automatic cleanup)
+    server_process = process_cleanup(Process(target=run_server, args=(server_res, stop_event)))
+    client_process = process_cleanup(Process(target=run_client, args=(client_res, stop_event)))
+
+    server_process.start()
+    sleep(3)
+    client_process.start()
+    print("Server started")
+
+    # Stop the processes
+    stop_event.set()
+    server_process.join(timeout=1)
+    if server_process.is_alive():
+        server_process.terminate()
+    client_process.join(timeout=1)
+    if client_process.is_alive():
+        client_process.terminate()
+
+    # ASSERT
+    # Check if values were set correctly
+    assert not server_res.empty(), "No value was set in the server"
+    assert not client_res.empty(), "No value was set in the client"
+
+    assert 10 == server_res.get(), "Server initial value was not set to 10"
+    assert 80 == server_res.get(), "Server value was not set to 80"
+    assert 20 == server_res.get(), "Server did not receive client's value 20"
+    assert 40 == server_res.get(), "Server did not receive client's value 40"
+
+def test_oscquery_multiple_clients_in_separate_processes(process_cleanup):
+    # ARRANGE
+    from multiprocessing import Process, Queue
+    from time import sleep
+    from cuemsengine.osc.helpers import ServerDevices, ClientDevices
+    from threading import Event
+
+    SERVER_LOCAL = 9798
+    SERVER_REMOTE = 9898
+    CLIENT_LOCAL = 9799
+    server_res = Queue()
+    client1_res = Queue()
+    client2_res = Queue()
+    stop_event = Event()
+
+    # Create OssiaServer in separate process
+    def run_server(result_queue, stop_event):
+        server = OssiaServer(
+            endpoints={"/test": [ValueType.Int, lambda x: result_queue.put(x), 10]},
+            server=ServerDevices.OSCQUERY,
+            local_port=SERVER_LOCAL,
+            remote_port=SERVER_REMOTE
+        )
+        sleep(1)
+        server.set_value("/test", 80)
+        while not stop_event.is_set():
+            sleep(0.1)
+
+    # Create two OssiaClients in separate process
+    def run_clients(result_queue1, result_queue2, stop_event):
+        client1 = OssiaClient(
+            endpoints={"/test": [ValueType.Int, lambda x: result_queue1.put(x), 20]},
+            remote_type=ClientDevices.OSCQUERY,
+            local_port=CLIENT_LOCAL,
+            remote_port=SERVER_REMOTE
+        )
+        
+        client2 = OssiaClient(
+            endpoints={"/test": [ValueType.Int, lambda x: result_queue2.put(x), 30]},
+            remote_type=ClientDevices.OSCQUERY,
+            local_port=CLIENT_LOCAL + 1,
+            remote_port=SERVER_REMOTE
+        )
+        
+        sleep(1.5)  # Allow time for server to set value
+        client1.set_value("/test", 40)
+        sleep(0.5)
+        client2.set_value("/test", 50)
+        
+        while not stop_event.is_set():
+            sleep(0.1)
+
+    # Start processes (register with process_cleanup for automatic cleanup)
+    server_process = process_cleanup(Process(target=run_server, args=(server_res, stop_event)))
+    clients_process = process_cleanup(Process(target=run_clients, args=(client1_res, client2_res, stop_event)))
+    
+    server_process.start()
+    sleep(0.5)  # Allow server to start before clients
+    clients_process.start()
+
+    # Allow processes to run for a short time
+    sleep(4)
+
+    # Stop the processes
+    stop_event.set()
+    server_process.join(timeout=1)
+    if server_process.is_alive():
+        server_process.terminate()
+    clients_process.join(timeout=1)
+    if clients_process.is_alive():
+        clients_process.terminate()
+
+    # ASSERT
+    # Check if values were set correctly
+    assert not server_res.empty(), "No value was set in the server"
+    assert not client1_res.empty(), "No value was set in client1"
+    assert not client2_res.empty(), "No value was set in client2"
+
+    assert 10 == server_res.get(), "Server initial value was not set to 10"
+    assert 20 == server_res.get(), "Server did not receive client1's initial value"
+    assert 30 == server_res.get(), "Server did not receive client2's initial value"
+    assert 80 == server_res.get(), "Server value was not set to 80"
+    assert 40 == server_res.get(), "Server did not receive client1's value 40"
+    assert 50 == server_res.get(), "Server did not receive client2's value 50"
+
+    assert 20 == client1_res.get(), "Client1 initial value was not set to 20"
+    assert 80 == client1_res.get(), "Client1 did not receive server's value 80"
+    assert 40 == client1_res.get(), "Client1 value was not set to 40"
+
+    assert 30 == client2_res.get(), "Client2 initial value was not set to 30"
+    assert 80 == client2_res.get(), "Client2 did not receive server's value 80"
+    assert 50 == client2_res.get(), "Client2 value was not set to 50"
+
+def test_oscquery_server_clients_main_thread():
+    # ARRANGE
+    from cuemsengine.osc.OssiaServer import OssiaServer
+    from cuemsengine.osc.OssiaClient import OssiaClient
+    from cuemsengine.osc.helpers import ServerDevices, ClientDevices
+    from time import sleep
+    
+    SERVER_LOCAL = 9296
+    SERVER_REMOTE = 9396
+    CLIENT_LOCAL = 9297
+    server_res = []
+    client1_res = []
+    client2_res = []
+
+    def server_callback(value):
+        server_res.append(value)
+
+    def client1_callback(value):
+        client1_res.append(value)
+
+    def client2_callback(value):
+        client2_res.append(value)
+
+    sleep(0.5)
+
+    # ACT
+    # Create server and clients
+    server = OssiaServer(
+        name="test_server",
+        host="127.0.0.1",
+        local_port=SERVER_LOCAL,
+        remote_port=SERVER_REMOTE,
+        server=ServerDevices.OSCQUERY
+    )
+    server.set_node("/test")
+    server.set_parameter(server.get_node("/test"), ValueType.Int, server_callback, 10)
+
+    client1 = OssiaClient(
+        host="127.0.0.1",
+        local_port=CLIENT_LOCAL,
+        remote_port=SERVER_REMOTE,
+        remote_type=ClientDevices.OSCQUERY
+    )
+    client1.set_node("/test")
+    client1.set_parameter(client1.get_node("/test"), ValueType.Int, client1_callback, 20)
+
+    client2 = OssiaClient(
+        host="127.0.0.1",
+        local_port=CLIENT_LOCAL + 1,
+        remote_port=SERVER_REMOTE,
+        remote_type=ClientDevices.OSCQUERY
+    )
+    client2.set_node("/test")
+    client2.set_parameter(client2.get_node("/test"), ValueType.Int, client2_callback, 30)
+
+    # Allow time for initial values to propagate
+    sleep(0.5)
+
+    # Server sets new value
+    server.set_value("/test", 80)
+    sleep(0.15)  # Allow time for server to set value
+    
+    client1.set_value("/test", 40)
+    sleep(0.05)
+    client2.set_value("/test", 50)
+    sleep(0.05)
+
+    # ASSERT
+    # Check if values were set correctly
+    assert len(server_res) > 0, "No value was set in the server"
+    assert len(client1_res) > 0, "No value was set in client1"
+    assert len(client2_res) > 0, "No value was set in client2"
+
+    assert 10 == server_res[0], "Server initial value was not set to 10"
+    assert 20 == server_res[1], "Server did not receive client1's initial value"
+    assert 30 == server_res[2], "Server did not receive client2's initial value"
+    assert 80 == server_res[3], "Server value was not set to 80"
+    assert 40 == server_res[4], "Server did not receive client1's value 40"
+    assert 50 == server_res[5], "Server did not receive client2's value 50"
+    
+    assert 20 == client1_res[0], "Client1 initial value was not set to 20"
+    assert 80 == client1_res[1], "Client1 did not receive server's value 80"
+    assert 40 == client1_res[2], "Client1 value was not set to 40"
+
+    assert 30 == client2_res[0], "Client2 initial value was not set to 30"
+    assert 80 == client2_res[1], "Client2 did not receive server's value 80"
+    assert 50 == client2_res[2], "Client2 value was not set to 50"