anchor.diff:        perl
         # Open URLs
         xdg_utils
  +      # Zoneinfo
  +      etc-zoneinfo
       ] ++ lib.optional withJava jdk
         ++ lib.optional withPrimus primus2;
   
  
positive.code: 
  let
    commonTargetPkgs = pkgs: with pkgs;
      let primus2 =
        if newStdcpp then primus else primus.override {
          stdenv = overrideInStdenv stdenv [ useOldCXXAbi ];
          stdenv_i686 = overrideInStdenv pkgsi686Linux.stdenv [ useOldCXXAbi ];
        };
      in [
        steamPackages.steam-fonts
        # Errors in output without those
  
negative.code: 
    profile = ''
      export STEAM_RUNTIME=/steamrt
      export TZDIR=/etc/zoneinfo
    '';
  
    runScript = "steam";
  