Mainly for #38, but maybe should also add some more configurable settings.

Forge Config API: https://docs.minecraftforge.net/en/1.18.x/misc/config/

Fabric: Have to roll my own or use a library.
Maybe use https://github.com/FabLabsMC/fiber

In both cases would be nice to also support Cloth Config

But these dependencies should all be optional. I don't wanna have people donwload a jar for config stuff.