I'll try. First of all. We don't want any Mac user to install VS/MonoDevelop and build the app from scratch on a Mac system. That's not the point. We want to run the same official builds, so the instructions are more simple actually. 1) Install Mono release on your Mac machine 2) Copy over all app files from Windows machine with the app installed already to a folder on Mac 3) Open Terminal in that directory and type: mono CustomForgeSongManager.exe However, we've tested this today internally (thanks, @Zagatozee) and the app crashes on start, probably because the app wasn't able to access registry in which it searches for Rocksmith installed directory. I'm not 100% on that since I don't have a Mac machine to debug, but that's my best guess. The best workaround would be to code the app so that if it detects that it runs on the Mac's Mono then don't try to accessing the registry. And that's the first hurdle, who knows what else we'll discover during testing.