Linux does support many ARM architectures already, and even supports the x86/x64 version of Secure Boot in some configurations. If Apple wants to either allow t

Linux does support many ARM architectures already, and even supports the x86/x64 version of Secure Boot in some configurations. If Apple wants to either allow their Secure Boot to be disabled or to allow end users or Linux distros to somehow get their own keys trusted, I'm sure the port can happen in the coming $smallnum years with enough interest + resources + time. (But not $smallnum months, sadly.) None of this, of course, is to pretend it's easy.