Maybe add sunshine and steam

configuration.nix

@@ -183,9 +183,15 @@ in
     };
   };
   services.resolved.enable = true;
+  services.sunshine = {
+    enable = true;
+    autoStart = true;
+    capSysAdmin = true;
+    openFirewall = true;
+  };
 
-  # Install firefox.
   programs.firefox.enable = true;
+  programs.steam.enable = true;
 
   # Allow unfree packages
   nixpkgs.config.allowUnfree = true;
@@ -225,6 +231,12 @@ in
   # networking.firewall.enable = false;
   networking.firewall.enable = true;
   networking.firewall.allowPing = true;
+  # Sunshine 
+  networking.firewall.allowedTCPPorts = [ 47984 47989 47990 48010 ];
+  networking.firewall.allowedUDPPortRanges = [
+    { from = 47998; to = 48000; }
+    { from = 8000; to = 8010; }
+  ];
 
   # This value determines the NixOS release from which the default
   # settings for stateful data, like file locations and database versions