Apple seriously needs to add a macOS Simulator to the Xcode toolset, like, yesterday. You should be able to install macOS runtimes just like every other platform, and build and run apps directly from Xcode to any of them. Doing compatibility testing for macOS is a nightmare compared to iOS

FB9577000

@stroughtonsmith I filed a FB for virtualization framework to take provioining profiles as input at install time. That would save a ton of time at VM creation & config of new builds.