https://modrinth.com/mod/gloppers

Would it be possible to keep "mixin.block.hopper=true" to have the best of both worlds?

I don't think it is feasible, maybe I will look into it eventually.

But you can give this link https://github.com/CaffeineMC/lithium-fabric/wiki/Disabling-Lithium's-Mixins-using-your-mod's-fabric-mod.json to the author

Thanks, I will let her know 😊