Subgrapher

Subgrapher is attempting something actually difficult rather than just calling itself decentralized — it's a P2P desktop app that combines your mail, calendar, notes, and AI workspace into one local-first system that never touches a central server, with a genuinely weird Telegram interface for reasoning over your work using local models. The semantic references and fork-based discovery system actually solve the "flat list of links" problem that makes most knowledge tools feel like digital filing cabinets, and the fact that it's free and open source while tackling platform dependency head-on is the kind of move that gets overlooked until it suddenly doesn't. With only 106 users it's clearly early, but the signal is there — this is the kind of tool that early adopters build around before anyone else figures out why they needed it.