these 3 derivations will be built:
  /nix/store/ca51fighyswckhbn1hzzn1i3s8km4spd-home-manager-path.drv
  /nix/store/irwafdd7fwa0373d2d9fvw5bpj787vix-activation-script.drv
  /nix/store/a1iyiqj0ps8b6zrhmxlk6nglyh1dmpwz-home-manager-generation.drv