anchor.diff:      installPhase = ''
         mkdir -p $out/share/
         mv simutrans $out/share/
  +      unzip -o ${resources} -d $out/share/
   
         mkdir -p $out/bin/
         mv build/default/sim $out/bin/simutrans
  
positive.code:     src = fetchurl {
        url = "mirror://sourceforge/simutrans/simutrans/${ver_h2}/simutrans-src-${ver_h2}.zip";
        sha256 = "0jdq2krfj3qsh8dks9ixsdvpyjq9yi80p58b0xjpsn35mkbxxaca";
      };
      sourceRoot = ".";
  
  
negative.code:     sha256 = "1ng963n2gvnwmsj73iy3gp9i5iqf5g6qk1gh1jnfm86gnjrsrq4m";
    };
    pak128 = fetchurl {
      url = "mirror://sourceforge/simutrans/pak128/pak128%20for%20${ver_1}/pak128-2.3.0--${ver_1}.2.zip";
      sha256 = "0jcif6mafsvpvxh1njyd6z2f6sab0fclq3f3nlg765yp3i1bfgff";
    };
  
    withPak = pak: stdenv.mkDerivation {
  