# MIT Jörg Thalheim - https://github.com/Mic92/dotfiles/blob/c6cad4e57016945c4816c8ec6f0a94daaa0c3203/nixos/modules/upgrade-diff.nix
{ pkgs, ... }:
{
  system.activationScripts.diff = ''
    if [[ -e /run/current-system ]]; then
      ${pkgs.nix}/bin/nix store diff-closures /run/current-system "$systemConfig"
    fi
  '';
}