added openrct2 to gaming_pkgs.nix, altered some network configuration to make hosting servers easier. Kitty now changes theme in ssh.

modules/sys/software/gaming/gaming_pkgs.nix

@@ -1,10 +1,23 @@
-{lib, config, pkgs, ...}: {
+{lib, config, pkgs, ...}:
+
+let
+  cust-openrct2 = pkgs.openrct2.overrideAttrs (oldAttrs: {
+        cmakeFlags = [
+          "-DDOWNLOAD_OBJECTS=ON"
+          "-DDOWNLOAD_OPENMSX=ON"
+          "-DDOWNLOAD_OPENSFX=ON"
+          "-DDOWNLOAD_TITLE_SEQUENCES=ON"
+        ];
+      });
+in
+{
   options = {
     gamingPkgs.enable = lib.mkEnableOption "enables gaming packages";
   };
   config = lib.mkIf config.gamingPkgs.enable {
     environment.systemPackages = with pkgs; [
       snes9x-gtk
+      cust-openrct2
     ];
   };
 }