anchor.diff:  let
   
     major = "2019";
  -  minor = "01";
  -  patch = "19";
  +  minor = "05";
  +  patch = "21";
   
     version = "${major}.${minor}.${patch}";
   
  
positive.code:     owner = "daid";
      repo = "EmptyEpsilon";
      rev = "EE-${version}";
      sha256 = "082v27w3n4jdm4a5884607rwsw4s00cnpqmh7bsdg9q3l29jpygn";
    };
  
    nativeBuildInputs = [ cmake ];
  
negative.code:       owner = "daid";
        repo = "SeriousProton";
        rev = "EE-${version}";
        sha256 = "0q6in9rfs3b3qrfj2j6aj64z110k1yall4iqpp68rpp9r1dsh26p";
      };
  
      nativeBuildInputs = [ cmake ];
  