I picked electron with portability in mind; I anticipate some unknown unknowns (since I've never owned a mac for ex) but they should be solvable.

I have support for linux, controllers, steam deck, mac on my to-do list in that order - it's simply a matter of time (up-front, maintenance, testing) and money since macs do tend to cost quite a bit. I'm a linux user myself and I hope I'll port it properly sooner rather than later but meanwhile I also know it seems to just work with proton.