@Lindon said in Setting up my M1 mac for Universal binary compiles....:
What OS do I need to be running? - I'm guessing its coming with V12(Monterey)
Traditionally the OS that your new mac comes with is the lowest macOS version that you can run, sadly. So if there is a need for backwards compatibility (when is there not?) that may present issues. Virtualization for pure testing can of course be done in VMWare Fusion including sound and drivers actually, but building/compiling via virtualized macOS is ill advised, I tried :(
What version of Xcode do I need (bearing in mind that there's at least one of the later versions that wont work with HISE)
Xcode can most likely be run in a few lower versions than the latest, even though the OS is newer and not explicitly supported. Reference the Xcode versions easily here:
Nice overview there. But do download from your account from the link that @orange left above.