Here's a nixos-rebuild wrapper script that formats and colorizes traces

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