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Build a RAG pipeline from scratch — the actually simple version

This story is from 2026-10-10. It is preserved in the archive; the latest stories are on the live feed.

Originally published on aiunplugged.in — cross-posting for the Dev.to community. Every RAG tutorial online starts with LangChain, LlamaIndex, or a hosted vector database signup. None of that is necessary to understand what a RAG pipeline actually is. This walkthrough builds one in a single Python f…

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  1. 2026-10-10 17:10 · DEV Community — AI
    Build a RAG pipeline from scratch — the actually simple version

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