CiteKit — RAG assistant starter (Next.js + Supabase + Claude)

Try it live (no signup, no API keys): https://fcristerna.github.io/citekit-live/Production-ready RAG over your documents: streaming answers with citations, pgvector + RLS, and a built-in eval harness so you can prove answers are grounded — not just "looks like it works". No SDK lock-in (Claude + OpenAI-compatible embeddings via fetch). Demo runs with zero keys. Pay once, self-host, keep 100%. Includes the repo, a 10-minute deploy guide, the eval harness, and updates.