# Thank you https://github.com/luishfonseca/dotfiles/blob/ab7625ec406b48493eda701911ad1cd017ce5bc1/modules/upgrade-diff.nix {pkgs, ...}: { system.activationScripts.diff = { supportsDryActivation = true; text = '' ${pkgs.nvd}/bin/nvd --nix-bin-dir=${pkgs.nix}/bin diff /run/current-system "$systemConfig" ''; }; }