Thanks for the positive words! Any limitations in the transpiler (such as some advanced generics) will only be limitations on the Android side – the iOS side can still do anything that is support in Swift. We discuss this a bit at https://skip.tools/docs/platformcustomization/
> Also, using SwiftUI cross-platform makes me think that many android libraries would be a no-go.
A unique feature of Skip is that the Kotlin/Android side is free to integrate with whatever gradle libraries it wants (see https://skip.tools/docs/dependencies/). Similarly, the Swift side can have any SwiftPM dependencies it wants.
Only your own transpiled modules, and the core Skip modules, will need to support transpilation. You can then include any native dependencies via your app's transpiled code that branches based on which platform/language you are targeting. So, for example, the Swift/SwiftUI side of the project can depend on the SwiftPM "https://github.com/firebase/firebase-ios-sdk.git" dependency, and the Kotlin/Compose side can depend on the Gradle "com.google.firebase:firebase-bom" dependency. This is what we ourselves do in the various integration modules we have (such as SkipFirebase, for this particular example).
> Also, using SwiftUI cross-platform makes me think that many android libraries would be a no-go.
A unique feature of Skip is that the Kotlin/Android side is free to integrate with whatever gradle libraries it wants (see https://skip.tools/docs/dependencies/). Similarly, the Swift side can have any SwiftPM dependencies it wants.
Only your own transpiled modules, and the core Skip modules, will need to support transpilation. You can then include any native dependencies via your app's transpiled code that branches based on which platform/language you are targeting. So, for example, the Swift/SwiftUI side of the project can depend on the SwiftPM "https://github.com/firebase/firebase-ios-sdk.git" dependency, and the Kotlin/Compose side can depend on the Gradle "com.google.firebase:firebase-bom" dependency. This is what we ourselves do in the various integration modules we have (such as SkipFirebase, for this particular example).