I'm seeing an error during the customize phase that I've never seen before. I'm not even sure it's a problem in SDM; perhaps it's a problem with rpi-connect. Have a look at line 773 in the attached log. I'm running Wayland, as you would expect, so I'm not sure why it's blathering about $DISPLAY and X11. Any idea what I ought to do about this?
sdm-citadel-customize-script.txt