these 3 derivations will be built:
  /nix/store/qdwd6qlhfdfh0dxzfncf1g7dz38xlr7a-home-manager-path.drv
  /nix/store/swp676ag4alzpa9s0nywvpd9r7w121zn-activation-script.drv
  /nix/store/p9piwxpxfgkqiph9hh0kl3xarh3d83j8-home-manager-generation.drv