lmao! 
I may indeed have selected 1 as opposed to I (for Install). But since Endeavour is based off of Arch I can confirm that the AUR from 2015 does not work.
I think I vaguely recall getting it to work once and then failing (indefinitely) after the first reboot. I’m a little curious how this works on the real hardware and think I’ll stick with @Pudge method as I know it works. 