FastRAG Next.js RAG boilerplate with precise PDF citation highlighting

Show HN: FastRAG Next.js RAG boilerplate with precise PDF citation highlighting

Based, FastRAG Next.js RAG boilerplate with precise PDF citation highlighting works in show hn launch.

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Hey HN,I built this because I was tired of setting up the same RAG pipeline for every side project.The Problem: Most RAG tutorials give you an answer but don't show where it came from. Hallucinations are a dealbreaker for real apps.* The Solution:* I built a pipeline using Pinecone metadata to map vector chunks back to the original PDF page/text. The UI highlights the source snippet when the AI answers.Stack:Next.js 14 (App Router)Pinecone (Serverless)LangChain (Streaming)Supabase (Auth)Demo: https://www.fastrag.liveHappy to answer questions about the chunking strategy or the citation logic.

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Website: www.fastrag.live