Just a heads-up. The Ariente port to 1.15 is going well. The port is very brutal though. I'm porting from 1.12 to 1.15 and Ariente is very graphics-heavy so MANY changes are needed

I watched @Ellpeck do a bit of his Nature's Aura porting, and it seemed like an awful lot of it was mechanical. I'm surprised IntelliJ or similar doesn't have refactoring tools to make this easier.

Actually IntelliJ has a lot of tools that can help. Unfortunatelly in the case of rendering there is not much that can be automated. At least not in my case. I basically have to redo most of the rendering related code and models