fix: remove unnecessary remix-utils dependency

app/root.tsx

@@ -1,6 +1,5 @@
 import type { MetaFunction } from "react-router";
 import { Links, Meta, Outlet, Scripts, ScrollRestoration } from "react-router";
-import { ExternalScripts } from "remix-utils/external-scripts";
 
 import { LiveDataProvider } from "~/utils/live-data";
 import ToastProvider from "~/utils/toast-provider";
@@ -38,7 +37,6 @@ export function Layout({ children }: { readonly children: React.ReactNode }) {
           <ToastProvider />
           <ScrollRestoration />
           <Scripts />
-          <ExternalScripts />
         </body>
       </html>
     </LiveDataProvider>

app/routes/ssh/page.tsx

@@ -1,7 +1,6 @@
 import { Loader2, WifiOff } from "lucide-react";
 import { useEffect, useState } from "react";
 import { data, isRouteErrorResponse, type ShouldRevalidateFunction } from "react-router";
-import { ExternalScriptsHandle } from "remix-utils/external-scripts";
 
 import Button from "~/components/button";
 import Card from "~/components/card";
@@ -112,16 +111,6 @@ export const links: Route.LinksFunction = () => [
   },
 ];
 
-export const handle: ExternalScriptsHandle = {
-  scripts: [
-    {
-      src: WASM_HELPER_URL,
-      crossOrigin: "anonymous",
-      preload: true,
-    },
-  ],
-};
-
 export default function Page({ loaderData }: Route.ComponentProps) {
   const { hostname, username, offline, node } = loaderData;
 

app/routes/ssh/wasm.client.ts

@@ -1,4 +1,5 @@
 const WASM_MODULE_URL = `${__PREFIX__}/hp_ssh.wasm`;
+const WASM_HELPER_URL = `${__PREFIX__}/wasm_exec.js`;
 
 declare global {
   type HeadplaneSSHFactory = (config: HeadplaneSSHConfig) => HeadplaneSSH;
@@ -44,12 +45,29 @@ export interface TunnelSession {
 
 let resolvedFactory: Promise<HeadplaneSSHFactory> | null = null;
 
+function loadGoHelper(): Promise<void> {
+  if (typeof globalThis.Go !== "undefined") {
+    return Promise.resolve();
+  }
+
+  return new Promise((resolve, reject) => {
+    const script = document.createElement("script");
+    script.src = WASM_HELPER_URL;
+    script.crossOrigin = "anonymous";
+    script.onload = () => resolve();
+    script.onerror = () => reject(new Error("Failed to load Go WASM helper"));
+    document.head.appendChild(script);
+  });
+}
+
 /**
  * One-shot function that loads the Go WASM binary and returns the SSH factory.
- * It expects the Go WASM helper to be loaded, and will error if called before.
+ * Automatically loads the Go JS helper if it hasn't been loaded yet.
  */
 export async function loadHeadplaneWASM(): Promise<HeadplaneSSHFactory> {
   if (!resolvedFactory) {
+    await loadGoHelper();
+
     const go = new Go();
     const result = await WebAssembly.instantiateStreaming(fetch(WASM_MODULE_URL), go.importObject);
 

package.json

@@ -50,7 +50,6 @@
     "react-router": "^7.14.0",
     "react-router-dom": "^7.14.0",
     "react-router-hono-server": "2.25.2",
-    "remix-utils": "^9.3.1",
     "restty": "^0.1.35",
     "tailwind-merge": "3.5.0",
     "ulidx": "2.4.1",