I've pushed the xmake build files to my fork, which is stuck at 2021.12 for the moment since I started the process pre-Luau revolution:https://github.com/paul-reilly/gideros/tree/xmake
Instructions for use in xmake.lua in the root directory.
I think it might be a nice long term fit. Since it is compatible with every platform Gideros targets it could replace template files and multiple build files per plugin.
(Bundling xmake and zig with Gideros would give a full build system and Zig/C/C++ compiler/linker to play with at runtime too.