these 2 derivations will be built:
  /nix/store/azhkd7j6dzb1yz46scbbyqs262clf8ab-serviio-2.2.1-linux.tar.gz.drv
  /nix/store/g3k51iam9vwrivlwkb74d5mza6ba4dlv-serviio-2.2.1.drv