IMO this feature is not really needed, because compressing localStorage can make it tricky to debug, while only provide at maximum 5x storage, not scalable.

The more scalable would be to migrate to IndexedDB, which provide at minimum 50MB of storage according some sources on internet (although usually there is no hard limit). There are also many libraries that provide easier-to-use interface.

I would appreciate if you can write an interface for IndexedDB. The compressed localStorage is not a valid solution atm, we can only keep it as a demo if you want to continue.

Thanks for the opinion. I agree that migrating to IndexedDB is a good idea, and I’ll explore ways to implement it with minimal changes.
Perhaps we can turn off the useCompression switch and allow some users to make good use of it in the meantime.

We can keep this PR as a demo, but I don't think we can merge it to master, given that IndexedDB is preferred way to go.