@catgirl @unascribed It's even more coremodd-y on 1.13 right now because Rift doesn't do all the patches and compat stuff Forge does, but at least Rift coremods are mixin instead of direct class transforms.
@catgirl Mixin is a system made by Sponge that lets you inject and redirect method calls into code without having to rewrite or transform the class itself, along with having priority stuff so if multiple mods affect the same code they can sort themselves out!
@B0undarybreaker I have absolutely no idea what the difference between mixin and class transforms is, but I'm sure that's a good thing..!