add steam

modules/aspects/roles.nix

@@ -58,6 +58,7 @@
       "pass"
       "zk"
       "gui-programs"
+      "steam"
     ];
 
     laptop.features = [

modules/features/desktop/steam.nix

@@ -0,0 +1,58 @@
+{
+  ...
+}:
+
+{
+  config.dendritic.features.steam = {
+    nixosModules = [
+      (
+        { config, pkgs, ... }:
+        {
+          hardware.graphics.enable32Bit = true;
+
+          programs.steam = {
+            enable = true;
+            remotePlay.openFirewall = true;
+            dedicatedServer.openFirewall = true;
+
+            gamescopeSession = {
+              enable = true;
+              args = [
+                "-F fsr"
+                "-f"
+              ];
+            };
+
+            package = pkgs.steam.override {
+              extraPkgs =
+                pkgs: with pkgs; [
+                  xorg.libXcursor
+                  xorg.libXi
+                  xorg.libXinerama
+                  xorg.libXScrnSaver
+                  libpng
+                  libpulseaudio
+                  libvorbis
+                  stdenv.cc.cc.lib
+                  libkrb5
+                  keyutils
+                ];
+            };
+          };
+
+          environment.sessionVariables = {
+            # Proton GE flag for FSR
+            WINE_FULLSCREEN_FSR = "1";
+          };
+
+          environment.systemPackages = with pkgs; [
+            protonup-ng
+            steam-devices-udev-rules
+            scanmem
+            mangohud
+          ];
+        }
+      )
+    ];
+  };
+}