**Key Directories & Files**

• **`app.py` / `launcher.py`:** Entry points for the backend application.
• **`core/`:** Contains core backend logic like authentication, database interactions, middleware, and constants.
• **`src/`:** Houses the core LLM logic, agent loop, tools, chat processing, RAG (Retrieval-Augmented Generation), MCP manager, and embedding functions.
• **`routes/`:** Contains individual HTTP route modules (e.g., chat, memory, docs, email, calendar, cookbook, dev features).
• **`services/`:** Includes modules for specific functionalities like document handling, search, memory management, TTS (Text-to-Speech), STT (Speech-to-Text), YouTube integration, and hwfit (likely health/wellness).
• **`static/`:** Contains the `index.html` and modular JavaScript files for the frontend application.
• **`companion/`:** Directory for the AI companion module.
• **`chroma/`:** Directory for ChromaDB integration code/configuration.
• **`mcp_servers/`:** Contains the Model Context Protocol server implementations.
• **`integrations/`:** Houses third-party integration code (e.g., Auth0, Slack).
• **`config/`:** Contains configuration templates (e.g., SearXNG settings).
• **`tests/`:** Contains pytest unit/integration tests, organized by area markers (`-m` flag).
• **`data/`:** Directory for runtime data (ignored by Git) like databases, uploads, memory stores, and settings (not to be confused with `config/`).
• **`docs/`:** Likely contains project documentation (e.g., `setup.md`).
• **`.env.example`:** Example file for deployment environment variables (e.g., LLM endpoints, auth secrets, ports).
• **`pyproject.toml`, `requirements.txt`:** Python dependency files.
• **`package.json`:** Front