anchor.diff:    version = "1.7.3";
   
     src = fetchurl {
  -    url = "https://www.nih.at/libzip/${pname}-${version}.tar.gz";
  +    url = "https://libzip.org/download/${pname}-${version}.tar.gz";
       sha256 = "1k5rihiz7m1ahhjzcbq759hb9crzqkgw78pkxga118y5a32pc8hf";
     };
   
  
positive.code: , fetchurl
  , perl
  , zlib
  }:
  
  stdenv.mkDerivation rec {
  
negative.code:   '';
  
    meta = with lib; {
      homepage = "https://libzip.org/";
      description = "A C library for reading, creating and modifying zip archives";
      license = licenses.bsd3;
      platforms = platforms.unix;
      changelog = "https://github.com/nih-at/libzip/blob/v${version}/NEWS.md";
    };
  }
  