Show HN: AI support chatbot with RAG and citations – one back end file, no infra(github.com)

Show HN: AI support chatbot with RAG and citations – one back end file, no infra

https://github.com/oncellai/oncell-support-agent

Upload markdown docs, get a support chatbot that answers with citations. The entire backend is one JS file — storage, search, and conversation history are handled by the runtime.

Stack: Next.js + OnCell + OpenRouter.

Demo: https://youtu.be/rWIU43pOH5Y

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