these 3 derivations will be built:
  /nix/store/y1qm3fz760xa1c1minmqhivvbw46cl7f-home-manager-files.drv
  /nix/store/ilnf5np31wif1wcbhcvdbz36mbh1nxi0-hm-putter.json.drv
  /nix/store/fg6h6za4l2sw0wd916bs58ldasrf7jmc-home-manager-generation.drv