these 3 derivations will be built:
  /nix/store/cnqflyzf6yr55b0sg28mawygaz3492vp-home-manager-files.drv
  /nix/store/fc60c6pqsvwvp0fwr0r5nsbs2nw0zdmm-hm-putter.json.drv
  /nix/store/fp35mis8w7ffk289ci9yfpvh3xn509n3-home-manager-generation.drv