these 3 derivations will be built:
  /nix/store/94dzc54lc38qr9rp8hcqrcgnw60ms1k0-home-manager-path.drv
  /nix/store/l90ll6fmwxrna2s3lfbddx3s67ai49s5-activation-script.drv
  /nix/store/78lb7rzb08q3sk39lssx0nv43lgplm6p-home-manager-generation.drv