not sure its better or not

scenes/testScene/scene.ts

@@ -0,0 +1,16 @@
+import { useScene } from "#/engine/Scene.ts";
+import data from "./data.json";
+
+const { process, preProcess, linkScenes } = useScene(data);
+
+linkScenes(["fooScene", "fuzzScene"] as const);
+
+preProcess((entityInstanceMap) => {
+	const entity = entityInstanceMap.get(data.entities[0].name);
+	const instance = entity!.instances[0];
+
+	instance.position.x = data.width - 16;
+	instance.position.y = data.height - 16;
+});
+
+process((_ctx, _delta) => {});