StarTrail-org/LEANN ? reverse-engineered prompt

Build me a local AI search app that runs on my laptop and lets me ask questions over my own stuff, like PDFs, text files, markdown notes, emails, browser history, chat history, and maybe a codebase too.

I want it to feel fast and simple, with a clean interface where I can add a folder or source, index it, and then ask natural language questions and get accurate answers with sources. It should stay completely private on my device, work offline, and avoid sending my data to any cloud service.

If it makes sense, include support for connecting to tools like Claude Code through MCP, and make it easy to search my personal knowledge base without changing my normal workflow. Please set it up so I can run it locally, try the examples, and understand how to load my data and query it right away. If you need to look up current docs online, go ahead.