Weekly Open Source Scan — 2026-03-29

[max4c]

Summary

• Research scan of 3 open-source repos (OpenOats, QMD, AppFlowy) for patterns relevant to Bugbook
• Covers local-first AI integration, SQLite FTS5 search improvements, sync UX, editor features, and plugin architectures
• Each repo section includes actionable takeaways with effort/impact ratings

Repos Covered

• yazinsai/OpenOats — Local LLM discovery, real-time AI suggestions, webhook automation, multi-persona AI sidebar
• tobi/qmd — FTS5 field weighting, CTE performance fix (19.8s→0.4s), AST-aware chunking, vec0 upsert patterns
• AppFlowy-IO/AppFlowy — Sync status UX, formula fields, block-level comments, Rust CRDT architecture

Top Actionable Items

• FTS5 field weighting (title 4x body) — trivial effort, high impact
• CTE wrapping for filtered FTS5 queries — trivial effort, prevents perf regression
• Sync status indicator — low effort, high trust impact
• Local LLM model discovery UX — medium effort, differentiator

https://claude.ai/code/session_013EJq1GU8WjUFaryunmppFe

[max4c]

Superseded by #7 (improved prompt with Top 3 section)