Zustand/Immer/Redux/TypeScript Undoable, Please Code Review/Feedback

[mysterybear]

Hey, I've been working on this mish-mash and just wanted to get some feedback. Is my code okay or could I go about it in a different/better way?

Code here https://github.com/bearjam/tom/blob/75d582d9f7f0d2d3a018b4b969d68b71b7fa42c5/src/zustand/middleware.ts

I publish as npm module just for my own convenience, it's exported as { reduxUndoable } from the @bearjam/tom package

I don't know if it's weird to change the "reducer" to a "producer", so it's producer: (draft: Draft<S>, action: A) => void as opposed to reducer: (state: S, action: A) => S that is required from the consumer...

The logic with the undo/redo might not even be bulletproof either, I only just got this working

Also I am a noob with zustand/immer and even redux lol so I might be doing something silly, but I do want to use this for a production application eventually so would be great to get feedback! Cheers!