these 3 derivations will be built:
  /nix/store/2j781h6cfwzzz14zbdxcjf21bcqjpyxg-home-manager-path.drv
  /nix/store/f09ns82fwcykj6bxnahp9iggsb2p4pxk-activation-script.drv
  /nix/store/2nav2fnp399xb74x82vkkcmb09cwxj1n-home-manager-generation.drv