clean install: you make a backup, nuke the computer, install a fresh upgraded copy of the distro you want from a live usb, copy your data again to the computer....
Man just when I thought I got the hang of NixOS and setup everything already thanks to the new wiki. I dont think this is worth the trouble for me right now, but maybe in the future.
when you upgrade an OS, do you clean install or upgrade?
clean install: you make a backup, nuke the computer, install a fresh upgraded copy of the distro you want from a live usb, copy your data again to the computer....
SteamOS 3.6: How the Steam Deck atomic updates are improving (www.collabora.com)