MemberHub: a 19-tool SaaS in one Django monolith
Calendar to invoicing, all sharing one API style, one auth model and one billing engine — built and run by one person.
I design and run software end to end — from the Linux box to the 3D scene in the browser — and lately I build it with AI agents in the loop.
This site is in three parts: work, case studies of what I've built and run — a 19-tool membership platform, a procedural 3D city in the browser, an Android photo-backup app, the server infrastructure behind all of it, and the AI-agent workflow I build with; the lab, live demonstrations, opening soon; and writing, notes on building software with AI agents, over on note.com.
- tools
- 19
- in one Django monolith
- backed up
- 18.98 GB
- 2,329 files from one phone
- draw calls
- 608
- a frame, in the city
- commits
- 394
- in about three months
Selected work
Real-time without WebSockets code: MQTT for whiteboard, chat and notifications
One Mosquitto broker behind the app carries collaborative drawing, staff↔member chat and a live notification bell — and once locked itself out.
A procedural 3D city in the browser, generated in a Web Worker
Buildings, traffic with signals, pedestrians, a subway you can ride, weather, clouds and ridgelines — all from code, no assets but one walk cycle.
Building with AI agents in the loop: spec, plan, adversarial review
A one-person team shipping a 19-tool SaaS by putting Claude agents on rails — and the defects the rails caught that I would have shipped.