debian+phosh running on PinePhone

[BlackWater]

apt should be enough (nearly all customizations have been moved to deb packages), but you might need a few tricks to make sure everything goes fine (e.g. check the debian user belongs to all the needed groups -- see the setup-user script on gitlab)
Also, please make sure you have task-pinephone-phosh installed.
Anyway, you can just backup your data, try an upgrade, and go back from a clean install if anything goes wrong

Thanks a lot!