anchor.diff:      unix
       vector
       wcwidth
  +    word8
     ];
     homepage = "https://github.com/maralorn/nix-output-monitor";
     description = "Parses output of nix-build to show additional information";
  
positive.code:   unix,
    vector,
    wcwidth,
  }:
  mkDerivation {
    pname = "nix-output-monitor";
    version = "1.1.1.0";
    src = fetchzip {
      url = "https://github.com/maralorn/nix-output-monitor/archive/refs/tags/v1.1.1.0.tar.gz";
      sha256 = "1zw7x1snyycl1bp5w7jh8wwnynqvw3g4glr293bnzi5jyirj5wlg";
    };
    isLibrary = true;
    isExecutable = true;
  
negative.code:   async,
    attoparsec,
    base,
    bytestring,
    cassava,
    containers,
    data-default,
  