Show HN: Notebook AI – local-first meeting notes for Mac

Notebook AI is a desktop-first AI note taker built as a monorepo with an Electron/React/Vite desktop app, a Next.js web app, a local FastAPI/LangChain sidecar, and a hosted FastAPI cloud API, released under the MIT License. Notes are stored as markdown on disk via the local sidecar, and desktop notes, local provider keys, transcription, and AI work without signing in, while Google Drive mirror and the web account vault require an account. The project lists local and cloud API endpoints, setup guides, and macOS release build commands.