diff --git a/.github/workflows/validate.yaml b/.github/workflows/validate.yaml
index 8903e0e..5dab399 100644
--- a/.github/workflows/validate.yaml
+++ b/.github/workflows/validate.yaml
@@ -20,7 +20,7 @@ jobs:
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip
-          pip install .
+          pip install ".[validate]"
 
       - name: Validate LSL definitions via jsonschema
         run: |
diff --git a/.gitignore b/.gitignore
index 4e8be86..20540b7 100644
--- a/.gitignore
+++ b/.gitignore
@@ -20,3 +20,5 @@ __pycache__/
 *.egg-info/
 .ruff_cache/
 .venv/
+
+build
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index b9dee95..483c854 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -17,12 +17,27 @@ Thank you for your interest in contributing to the LSL definitions repository! T
 
 ## How to Contribute
 
-1. **Fork** this repository
-2. **Create a branch** for your changes (`git checkout -b improve-documentation`)
-3. **Make your changes** to `lsl_definitions.yaml`
-4. **Test** that your YAML is valid
-5. **Commit** your changes with a clear message
-6. **Push** to your fork and **submit a pull request**
+ 1. **Fork** this repository
+ 2. **Create a branch** for your changes (`git checkout -b improve-documentation`)
+ 3. **Make your changes** to `lsl_definitions.yaml`
+ 4. **Test** that your YAML is valid (See [Running validation locally](#running-validation-locally))
+ 5. **Commit** your changes with a clear message
+ 6. **Push** to your fork and **submit a pull request**
+
+## Running validation locally
+
+Validation is done with python and the validate.py script you will need to setup a python virtual environment and install the dependancies
+
+### Setup
+```bash
+python -m venv .venv
+source .venv/bin/activate
+pip install ".[validate]"
+```
+Now you should be able to run the validation script as specified in the `pyproject.toml`
+```bash
+validate-lsl-definitions-via-jsonschema
+```
 
 ## Pull Request Guidelines
 
diff --git a/pyproject.toml b/pyproject.toml
index bf92e08..d02e92a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -24,7 +24,6 @@ classifiers = [
 ]
 requires-python = ">=3.8"
 dependencies = [
-    "jsonschema",
     "PyYAML",
     "llsd"
 ]
@@ -39,6 +38,11 @@ Homepage = "https://github.com/secondlife/lsl-definitions"
 Repository = "https://github.com/secondlife/lsl-definitions"
 Issues = "https://github.com/secondlife/lsl-definitions/issues"
 
+[project.optional-dependencies]
+validate = [
+    "jsonschema",
+]
+
 [tool.setuptools]
 py-modules = [
     "gen_definitions",