Document modules

pusu-server-lib/Readme.md

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+# Project Name
+
+[![License](https://img.shields.io/badge/license-MIT-blue.svg)](LICENSE)
+
+## Overview
+
+**Project Name** is a Rust-based application that leverages powerful libraries such as `tokio`, `foundationdb`, `actix`,
+and more. It is designed to handle asynchronous operations, database interactions, and provides support for secure
+authentication and structured error handling.
+
+## Features
+
+- **Asynchronous IO**: Powered by `tokio` for high-performance, non-blocking operations.
+- **Database Support**: Integrates with FoundationDB for reliable transactional storage.
+- **Authentication**: Secure token management via `biscuit-auth`.
+- **Error Handling**: Uses `thiserror` for ergonomic error management.
+- **Command-line Interface**: Built using `clap` for customizable and extensible CLI options.
+- **Tracing and Logging**: Provides instrumentation for tracking application state using `tracing` and
+  `tracing-subscriber`.
+
+## Requirements
+
+- **Rust**: Ensure you have Rust 1.85.1 (or later) installed.
+- **Dependencies**: This project relies on the following key dependencies:
+    - `prost` for protocol buffer support.
+    - `tokio` for async runtime.
+    - `clap` for CLI management.
+    - `foundationdb` and `foundationdb-tuple` for database operations.
+    - `tracing` for structured logging and application tracing.
+
+For a complete list of dependencies, refer to `Cargo.toml`.
+
+## Installation
+
+1. Clone the repository:
+   ```bash
+   git clone https://github.com/your_username/your_project.git
+   cd your_project
+   ```
+2. Build the project:
+   ```bash
+   cargo build --release
+   ```
+
+## Usage
+
+Run the application by executing:
+
+```bash
+cargo run -- <arguments>
+```
+
+You can view available CLI options using:
+
+```bash
+cargo run -- --help
+```
+
+## Examples
+
+Here’s a simple example of running the app with specific arguments:
+
+```bash
+cargo run -- --example-flag value
+```
+
+## Testing
+
+Run the test suite to ensure all features work as expected:
+
+```bash
+cargo test
+```
+
+## Contributing
+
+Contributions are welcome! Please follow these steps:
+
+1. Fork the repository.
+2. Create a new branch for your feature or bug fix.
+3. Submit a pull request with a detailed description of changes.
+
+## License
+
+This project is licensed under the [MIT License](LICENSE).
+
+## Acknowledgments
+
+This project uses multiple open-source libraries. Thanks to their maintainers and contributors for making this possible.
+
+## Contact
+
+For any questions or issues, feel free to open an issue in the GitHub repository or contact the maintainer via email at
+`your_email@example.com`.