If AshOS does not already support your distro, you can do it with 'relative' ease! A good way would be to use Arch as a template (./src/distros/arch/) For installer.py, usually, only SOME of the numbered sections (indicated as `#   1.` to `#   6.`) need to be adapted to new OS. For ashpk.py, convert the commands to the new package manager.
AUR