That's the series. Across 14 posts I've shown a real system I built and use every single day: the tracking loop, the supplies and the hard-won notes, the data and trends, the AI assistant and its action layer, the body data, the £0 architecture, the community edition, and the readiness score I'm building next. None of it is a mock-up. It's the thing I run my life on.
Still on the roadmap
- A skills layer — more things the assistant can actually do, not just describe.
- On-device speech and a small local model, for when there's no signal.
- And the readiness score itself, turned from a plan into a real number.
The bigger point
Strip away the specifics of my condition and what's left is a pattern: take someone's own structured data, make it trustworthy and legible, put an assistant on top that reasons over it, and help them plan around it. I built it for one condition. It transfers to many — any illness where your capacity changes day to day — and to plenty of problems that have nothing to do with health.
If this is your problem too
Patients: if you live with something similar, try the local-first community edition — it runs entirely in your browser at homehd-community.web.app.
Researchers, clinicians, commissioners, founders: if you want this readiness-engine pattern built for a specific condition, I've already built the hard, real version. Let's talk.
Building production AI, data, and cloud systems — grounded in real use, not slideware — is what I do at twentytwotensors. If any of this is useful to you, get in touch.