anchor.diff:      meta = {
         homepage = https://github.com/semifor/Net-Twitter-Lite;
         description = "A perl interface to the Twitter API";
  +      license = with stdenv.lib.licenses; [ artistic1 gpl1Plus ];
  +    };
  +  };
  +
  +  NetWorks = buildPerlPackage {
  +    name = "Net-Works-0.22";
  +    src = fetchurl {
  +      url = mirror://cpan/authors/id/M/MA/MAXMIND/Net-Works-0.22.tar.gz;
  +      sha256 = "1zz91vn1kdxljnlwllf4dzdsm4v6pja5694vf8l4w66azcyv5j8a";
  +    };
  +    propagatedBuildInputs = [ ListAllUtils MathInt128 Moo namespaceautoclean ];
  +    buildInputs = [ TestFatal ];
  +    meta = {
  +      description = "Sane APIs for IP addresses and networks";
         license = with stdenv.lib.licenses; [ artistic1 gpl1Plus ];
       };
     };
  
positive.code:     buildInputs = [ PathClass TestBits TestFatal TestNumberDelta TestRequires ];
      meta = {
        description = "Read MaxMind DB files and look up IP addresses";
        license = with stdenv.lib.licenses; [ artistic2 ];
      };
    };
  
negative.code:     propagatedBuildInputs = [ ClassAccessor ParamsValidate ];
    };
  
    MathInt128 = buildPerlPackage {
      name = "Math-Int128-0.22";
      src = fetchurl {
        url = mirror://cpan/authors/id/S/SA/SALVA/Math-Int128-0.22.tar.gz;
        sha256 = "1g0ra7ldv4fz3kqqg45dlrfavi2abfmlhf0py5ank1jk2x0clc56";
      };
      propagatedBuildInputs = [ MathInt64 ];
      meta = {
        description = "Manipulate 128 bits integers in Perl";
        license = with stdenv.lib.licenses; [ artistic1 gpl1Plus ];
      };
    };
  
    MathInt64 = buildPerlPackage {
      name = "Math-Int64-0.54";
      src = fetchurl {
        url = mirror://cpan/authors/id/S/SA/SALVA/Math-Int64-0.54.tar.gz;
        sha256 = "0lfkc0cry65lnsi28gjyz2kvdkanbhhpc0pyrswsczj3k3k53z6w";
      };
      meta = {
        description = "Manipulate 64 bits integers in Perl";
        license = with stdenv.lib.licenses; [ artistic1 gpl1Plus ];
      };
    };
  
    MathPlanePath = buildPerlPackage rec {
      name = "Math-PlanePath-126";
      src = fetchurl {
  