more modules

config/modules/gaming/common.nix

@@ -0,0 +1,8 @@
+{ den, modules, ... }:
+{
+  modules.common.provides = {
+    gaming = {
+      includes = [ modules.steam ];
+    };
+  };
+}

config/modules/gaming/steam.nix

@@ -0,0 +1,39 @@
+{ den, modules, ... }:
+{
+  modules.steam = {
+    nixos =
+      { pkgs, ... }:
+      {
+        programs.steam = {
+          enable = true;
+          remotePlay.openFirewall = true;
+          dedicatedServer.openFirewall = true;
+          localNetworkGameTransfers.openFirewall = true;
+          # Ensure gamescope is inside the steam "fhs"
+          package = pkgs.steam.override {
+            extraLibraries = pkgs: [ pkgs.xorg.libxcb ];
+            extraPkgs =
+              pkgs: with pkgs; [
+                attr
+                xorg.libXcursor
+                xorg.libXi
+                xorg.libXinerama
+                xorg.libXScrnSaver
+                libpng
+                libpulseaudio
+                libvorbis
+                stdenv.cc.cc.lib
+                libkrb5
+                keyutils
+                mangohud
+                gamemode
+                lsof
+                (gamescope.overrideAttrs {
+                  enableWsi = true;
+                })
+              ];
+          };
+        };
+      };
+  };
+}