97% of My App's Code Is in commonMain — A Field Report on Shipping 100% Compose Multiplatform

I shipped a small dev-news reader to Google Play with the entire client written in one Compose Multiplatform codebase — every screen in commonMain, no per-platform UI. This is an honest field report on what that actually costs in production: the numbers, the native seams, and the parts that still hurt (hi, iOS). The repo is open source (MIT), so everything here is checkable. TL;DR — For a content/list/detail app, CMP is comfortably production-ready on Android. 96.9% of the shared module is com...