I try to use the mod with Rubidium (as I'm using Forge, and Optifine is unfavorable), but the Minecraft launcher will give me an error when attempting to launch the game. The error occurred after I downloaded this mod, and considering that Rubidium isn't listed anywhere, I assume its incompatible?

It should be compatible, can you post your crash log?

Maybe you have to have the texture variant of the mod installed as well.

I've been getting crashes too when I was testing out some stuff.

crash-2023-05-07_16.10.45-client.txt

is this fixed with 0.2.12?