these 4 derivations will be built:
  /nix/store/ikqzjav7zjz3igv9rycwk2538f0si5kl-herdr-0.9.5.drv
  /nix/store/03csxprzqasjf8260y3gwww4zfhz3s58-home-manager-path.drv
  /nix/store/dzcs6iyarplvhzzyffrq8l52f4ghs189-activation-script.drv
  /nix/store/0l1iyghc3hxbyw2wcg0z0alhj7wbbw7k-home-manager-generation.drv