The Rolling Mill and the Tesla Coil have Lots of potential, and it would be cool to be able to make custom recipes

I'm not making an addon for this, KubeJS is far superior in my opinion, which support custom recipe types

You don't need to add any specific code to have CraftTweaker support, it also supports recipes with custom recipe types.

The only issue is that you don't register your recipe types anywhere, which is technically a vanilla requirement, example in create: https://github.com/Creators-of-Create/Create/blob/mc1.18/dev/src/main/java/com/simibubi/create/AllRecipeTypes.java#L82

Happy to provide more examples if they are needed, but once that is done, then people will be able to add and remove recipes perfectly fine using https://docs.blamejared.com/1.19/en/mods/other_mods

Thanks for the solution 🗿🥂🦐

That is not a solution that will help you, @mrh0 needs to implement it, only then can you use the addJsonRecipe method.