I successfully installed LibreELEC onto my MINIX NEO X8 PLUS today. The whole process went very smooth! I flashed the image onto an SD card and the MINIX booted into it without issue. I then used the installtoinernal command and that also worked perfectly.
The only real issue I see is the uboot power bug that's been mentioned already. I've enabled the "force suspend" workaround. This seems to suspend the device, but doesn't shut it down. Is there a safe way to shut down? I'm concerned that pulling the power cord could lead to data loss. Perhaps an SSH command that will help shutdown safely?
Thanks a lot for your work, dtech. I was able to salvage an old device from 2013 and make it modern and usable in my home once again. I sent a donation as a sign of appreciation.