I stand corrected. Upon the initial install you are required to deleted the AppleHPET.kext driver to allow the Bluetooth functionality to work!
So, yes you do require a PS2 keyboard and mouse for build purposes.
Additionally, when I upgraded to the later .updates by apple, the AppleHPET.kext re-appeared.
Now we can script the OS so whenever it sees that file in the directory it deletes it, but if you upgraded like I did, then was greeted without any input devices to login as a result, you will hold your head in your hands for sure.
My only saving grace as I didn’t have PS2 devices to hand was that screen sharing was already set up on this build. I remotely connected to machine and deleted the AppleHPET.kext thus gaining access back to my hackintosh.
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