Services: Add sunshine for remote game streaming

modules/services/sunshine.nix

@@ -0,0 +1,25 @@
+{
+  config.flake.factory.sunshine = user: {
+    services.sunshine = {
+      enable = true;
+      autoStart = true;
+      capSysAdmin = true;
+      applications = {
+        apps = [
+          {
+            name = "Steam Big Picture";
+            detached = [
+              "sudo -u ${user} setsid steam steam://open/bigpicture"
+            ];
+            prep-cmd = [
+              {
+                do = "";
+                undo = "sudo -u ${user} setsid steam steam://close/bigpicture";
+              }
+            ];
+          }
+        ];
+      };
+    };
+  };
+}