Oops, accidentally deleted my post... Thanks, I saw that page. That requires compiling to CLR instead of Linux native. It solves the WinForms issue, but I don't think the latest Mono runtime supports some other stuff ProjectZ uses. (Please correct me if I'm wrong! I'd love to hear ideas)
@virtuous_sloth
Targeting netstandard (CLR):
ββββββββ/InGame/Things/AnimationHelper.cs(31,82): error CS0103: The name 'MathF' does not exist in the current context [ββββββββ/ProjectZ.csproj]
ββββββββ/InGame/GameObjects/Things/ObjCockParticle.cs(28,43): error CS0103: The name 'MathF' does not exist in the current context [ββββββββ/ProjectZ.csproj]
@virtuous_sloth The bestest idea would probably be just removing the dependency on WinForms. There's lots of other frameworks available. That's probably what a normal person would do...