sti.care labs

Design notes from building sti.care.

The thinking behind sti.care: why it exists, what we decided and rejected, and how the privacy actually works. Written while building, published as-is.

The product

Live sti.care

The live product: a private way to show you're up to date on testing, without showing anything else. Everything sensitive stays on your device.

Open sti.care →

The thinking

The why, the what, and the how, plus the open questions I most want outside eyes on.

1 Philosophy The why. What the product is for, and the lines it won't cross. → 2 Decisions The what. A scannable log of locked choices and rejected options. → 3 Design The how. The full product and technical spec. → 4 Data & storage What we store, what we provably can't see, and the one place that isn't fully blind. → 5 Voice & tone Every word a user reads, and the rules that keep it honest and plain. → 6 Design language Why every sti.care surface reads like a publication, not a dashboard. → 7 Open questions The hard calls I want outside eyes on. →