Roshis Rai
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Thoughts on system design, full-stack engineering, and building software that scales.

AI chat assistant interface graphic for a RAG pipeline and hybrid search blog post.
AI & Machine Learning· 8 min read

Building a RAG Pipeline From Scratch: Hybrid Search with pgvector and Supabase

How I built a hybrid search RAG pipeline combining pgvector semantic search and Postgres full-text search, fused with Reciprocal Rank Fusion, to power the AI assistant on this site.

Jul 7, 2026

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Designed & built by Roshis Rai · 2026

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