anchor.diff:  
     meta = {
       description = "A single-player fantasy game with a randomly generated adventure world";
  -    inherit homepage;
  +    homepage = "https://www.bay12games.com/dwarves/";
       license = licenses.unfreeRedistributable;
       platforms = attrNames platforms;
       maintainers = with maintainers; [ a1russell robbinch roconnor abbradar numinit shazow ];
  
positive.code:   version = dfVersion;
  
    src = fetchurl {
      url = "${homepage}df_${baseVersion}_${patchVersion}_${dfPlatform}.tar.bz2";
      inherit sha256;
    };
  
  
negative.code: 
  let
    libpath = makeLibraryPath [ stdenv.cc.cc stdenv.cc.libc dwarf-fortress-unfuck SDL ];
  
    # Map Dwarf Fortress platform names to Nixpkgs platform names.
    # Other srcs are avilable like 32-bit mac & win, but I have only
  