these 3 derivations will be built:
  /nix/store/2z2zf95j34id45r5hdfq1f66azhkay8b-home-manager-files.drv
  /nix/store/wpzpzwqd1694cpxzwv3sivnjv2v377qb-hm-putter.json.drv
  /nix/store/fiqpy9b4b1c44qlmpjfnsqpgzyw7ip41-home-manager-generation.drv