Is anyone using any Kotlin state machine libraries? any recommendations?

You can use sealed classes/interfaces to make a state machine, no need of libraries

That’s what I’m currently doing, but I’m wondering if there’s something that will help with state transitions

You can use sealed classes and each class can implement allowed/not allowed interface

Implementing the FSM manually will inevitably lead to a lot of boilerplate in your sealed classes that obscure the actual intent or structure of the FSM. Tinder has a JVM-only FSM library that's pretty good https://github.com/Tinder/StateMachine

Thanks for responding… I saw that actually! Didn’t realize Tinder was on GitHub…. but I will check it out, thanks

This library provides many features and has nice DSL syntax https://github.com/nsk90/kstatemachine