these 3 derivations will be built:
  /nix/store/yyjxccvpvi05wlv1xkhd1kaagjb7qsd9-home-manager-path.drv
  /nix/store/a94rmmm4yc2d6d169jhdv54na1gb9zil-activation-script.drv
  /nix/store/hxnkm9vcwrdvvf12jafp7s5afvybw5ij-home-manager-generation.drv