The SwiftRex project is similar to ReSwift in design: it’s a library to design applications with a unidirectional data flow underpinning. In contrast to ReSwift, which is around for years and years already, SwiftRex has had a fresh start and supports Combine, RxSwift, and ReactiveSwift to create state change subscriptions. That’s a nice touch. I’ll have to experiment with the library some day, but so far it looks nice and the README is full of sexy ASCII diagrams.