these 3 derivations will be built:
  /nix/store/zdmaxrrjj7xj5fx2h5jk8681kvdwfnn5-home-manager-files.drv
  /nix/store/rg3241zvzpri7bffhhvb16c81k7ilyp3-hm-putter.json.drv
  /nix/store/zyy8ajqv4j5gmzqb29fhgdz7501avikx-home-manager-generation.drv