LibraryHyUI
If you're not from CurseForge, here's the mod download:
HyUI on CurseForge
Make sure you include the project as a dependency on upload to CurseForge.
Click here for a template starter project for HyUI!
In the meanwhile, have you seen Hytale UI Builder?
It supports outputting to HYUIML! Our special HTML/CSS-like syntax.
