Since the webgl version is for browsers, it shouldn't matter which OS you use.
Newer wersions of MacOS literally removed the option to manualy edit the file path of aliases, so it's now impossible to select the target text box. Apple is inhuman in ways it makes everything difficult... I've found some online tutorials for enabling webgl from files but i've got nowhere near enough understanding of programing for them to be usefull.
Love the game though :D unfortunately my saves get lost too often since mac suuuucks and I can only use the browser version