tutorials
Build a RAG App in Python Without LangChain
Build a retrieval-augmented generation app from scratch with Python, Google Gemini, and cosine similarity. No frameworks, no vector databases — just code you understand.
LucaMar 4, 2026Luca
CTO & Co-founder of DevGuild. Making coding education feel like a game, not a lecture. Shipping features at an unreasonable pace.
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