Thought building a RAG service needs big infra? Think again.
With just Go + PostgreSQL (pgvector) + LocalAI, you can go from nothing to:
β’Store embeddings in Postgres
β’Fetch nearest chunks with cosine search
β’Get grounded answers from a local model
~150 lines of Go, no heavy frameworks β just practical building blocks.
π Full walkthrough with code
https://medium.com/codetodeploy/build-a-basic-rag-service-in-go-2025-3b23b196787a
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