I am a seasoned web and Windows developer using Visual Studio and Windows. But I am brand new to mobile app development and want to setup my Visual Studio on a Windows 10 machine for iOS and Android Xamarin development. I know that for iOS app development I need a Mac machine to act as a build host. I am not a Mac user at all. Never even touched a Mac. I need the Mac machine only to build my iOS apps from Visual Studio running on Windows. So, my question is what is the minimum spec of a Mac machine I can get away with? I really don't want to spend any more for a Mac computer than absolutely necessary to start my development. Thank you for any help.