.

configuration.nix

@@ -220,6 +220,16 @@
   # Or disable the firewall altogether.
   # networking.firewall.enable = false;
 
+  networking.firewall = {
+    enable = true;
+    allowedTCPPortRanges = [
+      { from = 1714; to = 1764; }
+    ];
+    allowedUDPPortRanges = [
+      { from = 1714; to = 1764; }
+    ];
+  };
+
 #  networking.extraHosts = ''
 #    127.0.0.1 l.redsky.io
 #    ::1 l.redsky.io

home.nix

@@ -19,7 +19,6 @@ args@{ config, pkgs, split-monitor-workspaces, flatpaks, ... }:
     fprintd-tod
     freetube
     freetype
-    gamescope
     gcc
     ghostscript
     git-cola
@@ -60,7 +59,6 @@ args@{ config, pkgs, split-monitor-workspaces, flatpaks, ... }:
     slurp
     space-cadet-pinball
     lutris
-    steam
     sqlite
     stow
     swappy
@@ -201,6 +199,8 @@ args@{ config, pkgs, split-monitor-workspaces, flatpaks, ... }:
       "flathub:app/com.github.tchx84.Flatseal//stable"
       "flathub:app/com.usebottles.bottles//stable"
       "flathub:app/info.beyondallreason.bar//stable"
+      "flathub:app/com.valvesoftware.Steam//stable"
+      "flathub:runtime/org.freedesktop.Platform.VulkanLayer.gamescope//stable"
     ];
   };