system.yaml to change "default-gnome" to "plasma"akshara update successfully and rebooteduseradd -m sddm -s /bin/falseusermid -a -G video sddm and ran systemctl restart sddm and it workedakshara simply discarding the new passwd and group files. Implementing the nss-altfiles module (https://github.com/aperezdc/nss-altfiles) to have separate system variants of those files should be viable, since akshara would then be able to replace those files during updates. I'm implementing this right now.