Zobaze and Platform Commons taught me that code only counts once real users are hitting it. Baseline Profiles, crash triage, the unglamorous stuff, that's most of the actual job.

Two-second cold starts, Baseline Profiles, a Compose migration that didn't break a single existing screen. The performance work is invisible when it's done right, and that's exactly the point.

Black Focus has no team behind it. Design, code, the Play Store listing, all one person. I'd rather learn the whole stack than wait on someone else to own the part I don't know yet.