anchor.diff:    version = "0.6.0-1";
   
     src = fetchurl {
  -    url    = https://luarocks.org/argparse-0.6.0-1.src.rock;
  +    url    = https://raw.githubusercontent.com/rocks-moonscript-org/moonrocks-mirror/master/argparse-0.6.0-1.src.rock;
       sha256 = "10ic5wppyghd1lmgwgl0lb40pv8z9fi9i87080axxg8wsr19y0p4";
     };
     disabled = (luaOlder "5.1") || (luaAtLeast "5.4");
     propagatedBuildInputs = [ lua ];
   
  -  meta = {
  +  meta = with stdenv.lib; {
       homepage = "https://github.com/mpeterv/argparse";
       description = "A feature-rich command-line argument parser";
       license = {
  
positive.code:   disabled = (luaOlder "5.3");
    propagatedBuildInputs = [ lua lpeg dkjson ];
  
    meta = {
      homepage = "https://github.com/astoff/digestif/";
      description = "Code analyzer for TeX.";
      license = {
  
negative.code: };
  rapidjson = buildLuarocksPackage {
    pname = "rapidjson";
    version = "0.5.2-1";
  
    src = fetchurl {
      url    = https://luarocks.org/rapidjson-0.5.2-1.src.rock;
      sha256 = "17lgbzv9kairx49kwa0m8xwyly95mg6fw60jan2dpqwnnkf2m8y6";
    };
    disabled = (luaOlder "5.1");
    propagatedBuildInputs = [ lua ];
  
    meta = with stdenv.lib; {
      homepage = "https://github.com/xpol/lua-rapidjson";
      description = "Json module based on the very fast RapidJSON.";
      license = {
  