$ buildiso -p blackmanjaro -k linux61 -b stable
==> Done [Build ISO]
--> Time compress_images: 26.28 minutes
==> Finished building [blackmanjaro]
--> Time make_profile: 35.40 minutes
but can’t boot
Warning: /lib/modules/6.1.41-1-MANJARO/modules.devname not found - ignoring
ERROR: '/dev/disk/by-label/MANJARO-BLACKMANJAROM_2300' device did not show up after 30 seconds...
Falling back to interactive prompt
You can try to fix the problem manually. log out when you are finished
sh: can't access tty: job control turned off
There is a problem with their modules directory, and their fstab, and to top it off it appears they were trying to cobble it together with ‘blackarch’ somehow.
Well, that last part is just a guess from the name, because there isnt much info.
(and their profile states deepin, if that is related)