Llmbasedos is a minimal Arch Linux distribution acting as a secure bridge between Large Language Models and your personal data and tools. It utilizes the Model Context Protocol (MCP) to expose local capabilities, such as file system operations, email access, and agentic workflows, to various LLM frontends. The system is built on systemd services written in Python, featuring a central MCP gateway for authentication, authorization, and routing, along with dedicated MCP servers for specific functionalities. A custom shell provides an interactive interface for interacting with the gateway and executing commands.