Like the biome predicate but for dimensions.

I am currently using a resource pack that uses ctm for the obsidian pillars in the end.
Problem is just that it also affects servers using the_end biome in the overworld.

Awesome! Can't wait to try it out once ready.

Good luck with it.

I may try implementing it myself in a PR in the next few days

I am not opposed to this idea, but a dimension getter method must be added to Fabric API's BlockView API first, to allow for easier compatibility with other mods. Continuity for versions older than 1.21.1 will require manual compatibility with Sodium and Canvas, as was done for biomes before the biome getter was added to BlockView API.

Oh great to know. Didn't think about that

I see that you implemented the Block View v2 API yourself. Would you want to give it a go on dimension getter or would you like me to give it a try?

I plan to make a pull request for the dimension getter.