Docker's MCP Toolkit is a great way to expose Model Context Protocol servers to AI clients like Claude, n8n, or Cursor. Out of the box it's designed for Docker Desktop on macOS and Windows — but what if you want to run it on a headless Linux server? A Raspberry Pi, a VPS, a home lab box? This guide walks through setting it up from scratch on Linux (Debian/Ubuntu, arm64 or amd64), including secrets management, custom MCP server images, and a systemd service that starts automatically on boot.