these 4 derivations will be built:
  /nix/store/02w4qbih05fk1v8nily7clk4lg9x247v-home-manager-files.drv
  /nix/store/qan4chwyj9sv4zysp594s14m5dha7afr-hm-putter.json.drv
  /nix/store/svzwnms5zpyhxab2xvm57mh63wpss69a-activation-script.drv
  /nix/store/9vm2iaskwwjj78nvgn4p5swj7840wrfb-home-manager-generation.drv