Create RAG Documentation Expert Bot with Gemini & Supabase

This advanced n8n workflow creates a complete RAG pipeline to transform any documentation—such as n8n's official docs—into a specialized AI expert bot. It consists of two core parts: (1) Indexing, a one-time process that scrapes documentation pages, splits them into chunks, generates embeddings using AI, and stores them in a private Supabase vector database. (2) Querying, a chat interface where user questions retrieve the most relevant chunks, which are then fed to Gemini with instructions to an