Here it is https://codeberg.org/gmg/concoctions/src/branch/main/sh-scripts/nixos-rebuild
(if you try it and find any bugs, please let me know)
edit: I didn’t realize the screenshot shows just instead of nixos-rebuild… that runs a script (“recipe”) that calls nixos-rebuild so the output shown is from the (wrapped) nixos-rebuild
That
just build t8plusbecomesnixos-rebuild build --option eval-cache false --flake './nixcfg#t8plus'(the flake is at./nixcfg/flake.nix).