these 4 derivations will be built:
  /nix/store/nkkhfm6kh1s3ffgzckiim8ppgl2j7x4l-firefox-policies.json.drv
  /nix/store/fgn4fdn46bxr621vkx109g6dgc7d5vq5-etc.drv
  /nix/store/vf9vc0bksbwrxnwdfmzsfnyd3k6s0g84-activate.drv
  /nix/store/5qk5wjdzggxjhq6b5d3zyaxqf5l1xph1-nixos-system-zaphod-26.11.19800101.a831408.drv