these 3 derivations will be built:
  /nix/store/v05x9p0l1zmfzapmph7wy530qmzp3kkp-herdr-plugins.json.drv
  /nix/store/c999hydkw5ydf90hcjbg7jar9ii5ja4k-activation-script.drv
  /nix/store/7k6s7wysqrjajascqxsj33sd7ai9ykpx-home-manager-generation.drv