anchor.diff:    disabled = (luaOlder "5.1") || (luaAtLeast "5.5");
     propagatedBuildInputs = [ lua ];
   
  -  meta = {
  +  meta = with stdenv.lib; {
       homepage = "http://lua-stdlib.github.io/_debug";
       description = "Debug Hints Library";
       license = {
  
positive.code:   disabled = (luaOlder "5.1");
    propagatedBuildInputs = [ lua ];
  
    meta = {
      homepage = "https://github.com/Tieske/binaryheap.lua";
      description = "Binary heap implementation in pure Lua";
      license = {
        fullName = "MIT/X11";
      };
    };
  };
  
negative.code:   disabled = (luaOlder "5.1") || (luaAtLeast "5.4");
    propagatedBuildInputs = [ lua std__debug ];
  
    meta = with stdenv.lib; {
      homepage = "https://lua-stdlib.github.io/normalize";
      description = "Normalized Lua Functions";
      license = {
  