Koin dependency injection setup for an Android app (or the androidMain side of a KMP project) - module definitions per layer, ViewModel injection, assembling modules in :app, and koinViewModel() in composables. Use this skill whenever setting up Koin, defining a DI module, providing a repository or ViewModel, injecting a dependency, or wiring modules in the Application class. Trigger on phrases like "set up Koin", "add a Koin module", "inject a dependency", "DI module", "koinViewModel", "provide a ViewModel", "startKoin", or "single/viewModel/factory". For shared/commonMain or iOS-facing DI use the kmp-di skill instead.
