Is there a way to enroll your own platform key on the latest UEFI Secure Boot enabled Macs? They do not include the 'Microsoft Corporation UEFI CA' therefore a bootloader signed by Microsoft's UEFI binary signing service (which most popular Linux distros do) cannot be verified. And that means you must disable Secure Boot to boot something other than macOS or Windows. And that means you don't really control, therefore don't really own, your hardware.