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Your second brain to remember and search notes using Telegram. No apps, no folders. Backed by AI. Self-hosted.

4 starsPython

Pensabot – second brain notes in a chat

by bypirob·Apr 10, 2026·2 points·0 comments
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AI Analysis

●MidShip ItCozy

Telegram-based notes with hybrid search, but author admits it's an unfinished prototype.

Strengths
  • •Zero-friction capture via existing Telegram habit instead of opening another app
  • •Hybrid retrieval combining vector embeddings with BM25 keyword search
  • •Self-hosted architecture keeps all personal data on your own infrastructure
Weaknesses
  • •Author explicitly states it's unfinished and may break without notice
  • •Competes with Mem.ai, Notion AI, and dozens of AI note-taking tools
Category
Productivity
Target Audience

Note-takers who prefer chat interfaces over traditional apps

Similar To

Mem.ai · Notion AI · Rewind AI

Post Description

Hello HN!

I like taking notes on paper, but organizing them on my computer always feels tedious, so I usually end up not taking notes at all.

I thought that a simple chat interface like Telegram, is so easy to use that I can just send text, photos, audio, links… then transcribe everything and use hybrid search to retrieve it later.

The idea is to remove as much friction as possible when capturing thoughts.

I’ve built this project for myself, so it's just a prototype to learn and experiment, and you can self-host it!

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