Hi, I've made a port of catppuccin for Lemmy. Might not be a unix rice, but thought this would be a good place to post it, since you can use it to fit it with your rices.
https://github.com/n3oney/catppuccin-lemmy
It works as a custom theme if you run an instance, and as a Stylus theme!
Looks really good, thanks for sharing will definitely try it out!