these 3 derivations will be built:
  /nix/store/g6qmmqm1b1rf3i0kmzchc9agwpsy18bm-home-manager-files.drv
  /nix/store/w2hsi381wy0gksmymwbnzqcshphfncjd-hm-putter.json.drv
  /nix/store/n7inmzw93zwz4kgdpj1bgxfyf5vphgy3-home-manager-generation.drv