Building an Obsidian RAG with DuckDB and MotherDuck

I always wanted a personal knowledge assistant based on my notes. One that uses Obsidian’s backlinks and connections to surface ideas I’ve forgotten or never thought to link together. So I built one. A RAG system that runs locally with DuckDB as a vector database, then syncs to MotherDuck for a serverless web app running entirely in the browser via WASM. Think of it like J.A.R.V.I.S1 for your markdown files: search about a topic, and it shows connected notes up to two hops away, semantically…