And again, for the sake of this thread, I already replied extensively with my own learnings and criticisms at "Maybe I messed up my qubes installation?" related support questions involving "some" Heads subtleties, aka "How to disable autostarting of service qubes at boot without Grub interface" - #8 by Insurgo
(tags: firmware, testing, security, Purism, QubeOS certification process, oem disk installation, salt, kick-start what should be the next steps, where collaboration is needed etc etc etc)