Brainstorm Bot — Voice Archive for Founders
Diarized transcripts and action items, in-chat
Internal tool, used daily by Vailis and partner founders
Problem
Ideas, decisions and commitments were being generated in group voice chats and evaporating within a day. No archive, no action-item extraction, no way to search months back.
Solution
A Telegram bot catches audio, text and YouTube links, transcribes with Deepgram Nova-3 including speaker diarization, and runs a Claude Haiku pass that returns a summary, extracted ideas and commitments straight back to the chat. Files are written into Obsidian via GitHub sync for long-term retrieval.
Impact
Deployed and running in production with real users.
- Four services live on the VPS, multi-chat routing enabled
- Voice-ID accuracy 0.898–0.974 on two primary speakers
- ~$0.29 per 30-minute transcript — predictable unit economics
- Job cache prevents repeat processing across retries
Stack
Client details are anonymised where disclosure was not authorised. Metrics are either directly measured or clearly marked as targets in the project log.
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