I was vaguely aware this is possible although the "sign-up for a dev account and boot it in dev mode all the time", even if free, was still enough of a barrier that I haven't done yet. I'm hoping this hack eventually leads to a simpler "one-click" way to run emulation, home brew and mods while still maintaining full original game and media playing functionality.

Then I'll finally hook up the XBOne I have again and put it to some use on the downstairs TV. I already have a 'retired' PS4 filling similar role on the upstairs TV (although it must stay offline to remain 'liberated').