diff --git a/scripts/scenarios/start-app.ts b/scripts/scenarios/start-app.ts
index 5dee3f26c1..3d0be544d1 100644
--- a/scripts/scenarios/start-app.ts
+++ b/scripts/scenarios/start-app.ts
@@ -76,7 +76,7 @@ const prepareHome = Effect.fn("startApp.prepareHome")(function* (home: string) {
           {
             driver,
             enabled: false,
-            ...(driver === "codex" ? { config: { binaryPath: noModel } } : {}),
+            ...(driver === "codex" ? { config: { binaryPath: "/bin/false" } } : {}),
           },
         ]),
       ),
@@ -130,6 +130,8 @@ const startApp = Effect.fn("startApp")(function* (input: {
     ...hostEnvironment,
     PATH: `${path.join(input.home, "bin")}:${hostEnvironment.PATH ?? ""}`,
     T3CODE_AUTO_BOOTSTRAP_PROJECT_FROM_CWD: "0",
+    T3CODE_FEATURE_SECRETS: "1",
+    T3CODE_DEV_SEED: "0",
   };
   const devRunner = (mode: string, args: ReadonlyArray<string>) => [
     "scripts/dev-runner.ts",