@nickk I think for a majority of the Rx functionality, it’ll be pretty easy to pick up coming from RxSwift. I’m the Android developer in a small startup where I work alongside an iOS developer, and we both got into Rx at the same time (him with RxSwift and me with RxKotlin/RxJava). There are some things I remember wishing I had in RxKotlin that he had with RxSwift (although I can’t remember what they were called), but generally we both solved the same problems the same ways. This list of Rx libraries was really helpful for me: https://github.com/ReactiveX/RxAndroid/wiki