these 3 derivations will be built:
  /nix/store/znp8hrw1grn49r0f1n8597249f4g210w-home-manager-files.drv
  /nix/store/p6lbxhzc14kn139wczjpb4h11y9jvisw-hm-putter.json.drv
  /nix/store/10xjksvy78hg2b8a58b42111bsa2l48v-home-manager-generation.drv