Notes from the build floor.

Four questions we ask before every mobile build, and why React Native is still our default for most apps.

The demo is easy. Here is how we get a useful answer on the ten-thousandth try, with evaluation, grounding and honest interfaces.

A debt register, a steady 20 percent rule and refactoring where you already work. How we keep codebases healthy and features shipping.

Polished pixels make ideas look finished too early. Paper keeps the team arguing about the right problem.

Readable code, living docs and a four to eight week overlap. How we hand products over without a cliff edge.

Activation, weekly actives, cohort retention, task time and error rate. Five numbers that tell you if a product is working.