NZT-48
A self-hosted personal AI system built on Claude Code: a Telegram interface, Obsidian-backed memory, and a set of background agents and monitors that handle briefings, research, and scheduling. Runs at zero marginal cost with no cloud dependency. My most-starred repository.
Problem
I wanted a genuinely capable personal assistant without paying per message or handing my notes to a third-party cloud API. Off-the-shelf tools either cost per use or lock your data in.
Approach
Built a personal AI operating system on top of a single Claude Code subscription: a Telegram bot as the interface, an Obsidian vault as long-term memory, a set of task agents (briefing, research, scheduling, recall) and background monitors, outbound email over SMTP, and a small web dashboard. Everything runs locally.
Outcome
Runs at zero marginal cost. Public on GitHub and my most-starred repository; reviewers described it as “clean code, no red flags, does what it says on the tin.”