--- a/scripts/scenarios/start-app.ts
+++ b/scripts/scenarios/start-app.ts
@@ -69,6 +69,7 @@
   yield* fs.writeFileString(
     path.join(home, "userdata/settings.json"),
     yield* encodeSettings({
+      enableDeviceSupport: true,
       defaultModelSelection: REPLAY,
       providerInstances: Object.fromEntries(
         REAL_PROVIDERS.map((driver) => [
@@ -151,10 +152,15 @@
     const webEnv = { ...env, T3CODE_PORT_OFFSET: String(Number(webPort) - BASE_WEB_PORT) };
     const server = yield* start({
       cwd: checkout,
-      command: node,
-      args: devRunner("dev:server", ports),
+      command: "DEVICE_PROOF_WRAPPER",
+      args: [node, "apps/server/src/bin.ts"],
       env: {
         ...webEnv,
+        T3CODE_HOME: input.home,
+        T3CODE_PORT: serverPort,
+        T3CODE_MODE: "web",
+        T3CODE_NO_BROWSER: "1",
+        VITE_DEV_SERVER_URL: origin,
         T3CODE_DEV_ALLOWED_ORIGINS: origin,
         // Makes the startup pairing link reusable, so every test can sign in with it.
         T3CODE_DEV_AUTH_TOKEN: `${token}${token}`.replaceAll("-", ""),