As I am developing this in Qt on my main development machine (a Mac Mini) and building the Windows builds in a Windows 7 VM, I will be able to make the Mac version available if there is enough interest, but as I don’t actually have any Commodore hardware to test it with, the interoperability of the Mac version would be untested. Once we reach 1.0 status, I’ll consider putting a DMG up for Mac use as well.
As far as that goes, if there is interest for it, a Linux version could be built as well.