This is for building cross-platform Kotlin apps that share business logic (and optionally UI) across Android, iOS, desktop, and web. You get expect/actual for platform-specific bits, Ktor for networking, SQLDelight for local storage, and Compose Multiplatform if you want shared UI. The approach is pragmatic: share what makes sense (repositories, models, API calls) and go native where it matters. It's less magic than Flutter, more type-safe than React Native, and lets you write Kotlin everywhere. Best for teams already invested in Kotlin or building apps where business logic complexity justifies the shared code overhead.
npx skills add https://github.com/travisjneuman/.claude --skill kotlin-multiplatform