Dev Builds Local Personal AI Brain: Aggregates 300k Docs, Runs Fully On-Prem
Djkojb · reddit · 2026-08-07
Inspired by enterprise AI knowledge bases, a developer built an open-source (MIT), fully local "personal AI brain." The system integrates data from WhatsApp, email, Slack, Notion, and local folders, aggregating over 300,000 documents (including images OCR'd via a local vision model).
Technical Highlights:
- Local-first: All data and the MCP server run locally, ensuring privacy and agency.
- Hybrid Retrieval: Beyond full-text search, the model can use getschema and querysql tools to execute read-only SQL queries across the entire knowledge base. For structured questions like "how many emails from X this year," SQL beats semantic search every time.
- Flexible Access: Works with clients like Claude Desktop / Claude Code, with an optional HTTPS + OAuth tunnel for cloud AI access.
More from coding & agent
- Is Claude Code Enough? Dev Questions Value of New AI Subscription Tools — MaxLenormand · 2026-08-07
- Noether: Open-Source Tool to Automatically Prove Math Properties of JAX Code in Lean — jonkhler · 2026-08-07
- AI Agent Architecture: Lazy-Load Files, Subagents as Tool Calls — yacineMTB · 2026-08-07
- YC Says Solo Founders Can Hit $1B Valuations: A Codex Agent Workflow Guide — VibeMarketer_ · 2026-08-07
- Open-Source Project Prod Forge: A Reference Architecture for AI-Assisted Production Systems — tom_doerr · 2026-08-07
- Hands-on with Papers with Code's New Chat UI: Integrating Exa Search and DeepSeek — NielsRogge · 2026-08-07