Update FredOS-Gaming.nix

hosts/FredOS-Gaming.nix

@@ -16,7 +16,48 @@
         ];
       };
     };
-
+    
+    # Steam icon fix script
+    systemd.user.services.steam-icon-fix = {
+      description = "Fix Steam Proton game icons";
+      wantedBy = [ "default.target" ];
+      after = [ "graphical-session.target" ];
+      
+      serviceConfig = {
+        Type = "oneshot";
+        RemainAfterExit = false;
+      };
+      
+      script = ''
+        STEAM_DIR="$HOME/.local/share/Steam"
+        DESKTOP_DIR="$HOME/.local/share/applications"
+        
+        # Wait a bit for Steam to create desktop files
+        sleep 5
+        
+        for desktop_file in "$DESKTOP_DIR"/steam_app_*.desktop; do
+            [ -f "$desktop_file" ] || continue
+            
+            app_id=$(basename "$desktop_file" | sed 's/steam_app_\(.*\)\.desktop/\1/')
+            icon_file=$(find "$STEAM_DIR/appcache/librarycache/$app_id" -name "*.jpg" 2>/dev/null | head -n 1)
+            
+            if [ -f "$icon_file" ]; then
+                ${pkgs.gnused}/bin/sed -i "s|Icon=steam_icon_$app_id|Icon=$icon_file|" "$desktop_file"
+                echo "Fixed icon for App ID: $app_id"
+            fi
+        done
+      '';
+    };
+    
+    # Path watcher to trigger the fix when desktop files change
+    systemd.user.paths.steam-icon-fix-watcher = {
+      wantedBy = [ "default.target" ];
+      pathConfig = {
+        PathChanged = "%h/.local/share/applications";
+        Unit = "steam-icon-fix.service";
+      };
+    };
+    
     # Bootloader
     boot.loader.systemd-boot.enable = true;
     boot.loader.efi.canTouchEfiVariables = true;