use submodule

excalidraw/examples/with-script-in-browser/index.tsx

@@ -0,0 +1,29 @@
+import React, { StrictMode } from "react";
+import { createRoot } from "react-dom/client";
+
+import "@excalidraw/excalidraw/index.css";
+
+import type * as TExcalidraw from "@excalidraw/excalidraw";
+
+import App from "./components/ExampleApp";
+
+declare global {
+  interface Window {
+    ExcalidrawLib: typeof TExcalidraw;
+  }
+}
+
+const rootElement = document.getElementById("root")!;
+const root = createRoot(rootElement);
+const { Excalidraw } = window.ExcalidrawLib;
+root.render(
+  <StrictMode>
+    <App
+      appTitle={"Excalidraw Example"}
+      useCustom={(api: any, args?: any[]) => {}}
+      excalidrawLib={window.ExcalidrawLib}
+    >
+      <Excalidraw />
+    </App>
+  </StrictMode>,
+);