1# Thank you https://github.com/luishfonseca/dotfiles/blob/ab7625ec406b48493eda701911ad1cd017ce5bc1/modules/upgrade-diff.nix 2 3{ pkgs, ... }: { 4 system.activationScripts.diff = { 5 supportsDryActivation = true; 6 text = '' 7 ${pkgs.nvd}/bin/nvd --nix-bin-dir=${pkgs.nix}/bin diff /run/current-system "$systemConfig" 8 ''; 9 }; 10}