redux-xstate-poc VS redux-easy-mode

Very doable, but not the most ideal syntax, since `createSlice` is focused on "here's an action / thing that happened, here's the reducer that handles that".

On the flip side, you can also use XState state machines as Redux reducers. A state machine is, after all, a function that takes a current state value + some event, and returns a new state.... exactly the same as a reducer function!

David and I have been saying for a while that we'd like to have a more official integration between XState and Redux. A while back, Matt Pocock put together an proof of concept for what a `createXStateSlice` might look like [1]. I actually sat down with David a couple weeks ago and we did some further design discussions about the possibility of using the `@xstate/fsm` package (a smaller version of XState's logic) as a starting point, and generating RTK actions based on that. No code yet, but it seems feasible.

[0] https://dev.to/davidkpiano/redux-is-half-of-a-pattern-1-2-1h...

[1] https://github.com/mattpocock/redux-xstate-poc

Fun fact: one of the XState devs did a proof-of-concept showing how to use XState state machines as Redux reducers and integrate the side effects handling as a middleware:

https://github.com/mattpocock/redux-xstate-poc

We'd like to work together to turn that into a more official integration sometime soon.

One of the XState devs recently posted https://github.com/mattpocock/redux-xstate-poc , an example of how you can integrate XState into a Redux app for use as a Redux slice reducer + side effects middleware

Have you considered something like "selector based side effects"? https://github.com/mikew/redux-easy-mode#selector-based-side.... The difference is most side effects are based around when an action is dispatched, but I wanted to know when things _change_.

It's possible to do the same thing with a react component + useEffect, but I thought a pure-redux solution would better fit the spirit of Redux.