diff --git a/docs/application-overview.md b/docs/application-overview.md
index b51f279..4272cdf 100644
--- a/docs/application-overview.md
+++ b/docs/application-overview.md
@@ -90,7 +90,7 @@ $ pnpm start
 
 Open up https://localhost/, then restart the server, you will see a notification ask you to restart reload the offline content.
 
-## Maintaining
+## Managing Updates
 
 - Update dependencies weekly using dependencies updater. I recommend using Vscode extensions: [Vscode Ecosystem](https://marketplace.visualstudio.com/items?itemName=rifandani.vscode-ecosystem) (also maintained by myself)
 - When you update `@playwright/test`, don't forget to also download new browser binaries and their dependencies by running `pnpm test:install`
diff --git a/e2e/auth.setup.ts b/e2e/auth.setup.ts
index 09c2a0c..206003c 100644
--- a/e2e/auth.setup.ts
+++ b/e2e/auth.setup.ts
@@ -8,8 +8,8 @@ test('auth setup', async ({ page }) => {
   const passwordInput = page.getByRole('textbox', { name: /password/i });
   const submitBtn = page.getByRole('button', { name: /login/i });
 
-  await usernameInput.fill('kminchelle');
-  await passwordInput.fill('0lelplR');
+  await usernameInput.fill('emilys');
+  await passwordInput.fill('emilyspass');
   await submitBtn.click();
 
   await page.waitForURL('');
diff --git a/e2e/login.spec.ts b/e2e/login.spec.ts
index 2a094a1..6ec4043 100644
--- a/e2e/login.spec.ts
+++ b/e2e/login.spec.ts
@@ -1,11 +1,11 @@
 import { expect, test } from '@playwright/test';
 
-const validUsername = 'kminchelle';
-const validPassword = '0lelplR';
+const validUsername = 'emilys';
+const validPassword = 'emilyspass';
 const invalidUsername = 'km';
 const invalidPassword = '0lelp';
-const errorUsername = '1kminchelle';
-const errorPassword = '10lelplR';
+const errorUsername = '1emilys';
+const errorPassword = '1emilyspass';
 
 test.describe('authorized', () => {
   test('should redirect back to home page', async ({ page }) => {
diff --git a/e2e/todo.spec.ts b/e2e/todo.spec.ts
index c4f8bf6..f8f0d81 100644
--- a/e2e/todo.spec.ts
+++ b/e2e/todo.spec.ts
@@ -4,12 +4,12 @@ test.describe('authorized', () => {
   test('should have title, and link that navigate back to /todos', async ({
     page,
   }) => {
-    await page.goto('/todos/28');
+    await page.goto('/todos/47');
 
     const title = page.getByRole('heading', { name: 'Todo Detail' });
     const homeLink = page.getByRole('link', { name: 'Home' });
     const todosLink = page.getByRole('link', { name: 'Todos' });
-    const todoDetailLink = page.getByRole('link', { name: '28' });
+    const todoDetailLink = page.getByRole('link', { name: '47' });
 
     await expect(title).toBeVisible();
     await expect(homeLink).toBeVisible();
@@ -20,7 +20,7 @@ test.describe('authorized', () => {
     await page.waitForURL('/todos');
     await expect(title).not.toBeVisible();
 
-    await page.goto('/todos/28');
+    await page.goto('/todos/47');
     await homeLink.click();
     await page.waitForURL('/');
   });
@@ -29,7 +29,7 @@ test.describe('authorized', () => {
     // test.fixme(`should show error UI on invalid todo id in URL`, async ({page}) => {})
 
     test(`should be able to update user's own todo`, async ({ page }) => {
-      await page.goto('/todos/28');
+      await page.goto('/todos/47');
 
       const input = page.getByRole('textbox', { name: 'todo detail input' });
       const updateBtn = page.getByRole('button', { name: /update/i });
@@ -67,7 +67,7 @@ test.describe('unauthorized', () => {
   test.use({ storageState: { cookies: [], origins: [] } });
 
   test('should redirect back to /login', async ({ page }) => {
-    await page.goto('/todos/28');
+    await page.goto('/todos/47');
 
     const usernameInput = page.getByRole('textbox', { name: /username/i });
     const passwordInput = page.getByRole('textbox', { name: /password/i });
diff --git a/src/app/devtools.tsx b/src/app/devtools.tsx
new file mode 100644
index 0000000..dc6aa51
--- /dev/null
+++ b/src/app/devtools.tsx
@@ -0,0 +1,31 @@
+import { ReactQueryDevtools } from '@tanstack/react-query-devtools';
+import React from 'react';
+
+const ReactQueryDevtoolsProduction = React.lazy(() =>
+  import('@tanstack/react-query-devtools/build/modern/production.js').then(
+    (d) => ({
+      default: d.ReactQueryDevtools,
+    }),
+  ),
+);
+
+export function Devtools() {
+  const [showDevtools, setShowDevtools] = React.useState(false);
+
+  React.useEffect(() => {
+    window.toggleRqDevtools = () => setShowDevtools((prev) => !prev);
+  }, []);
+
+  return (
+    <>
+      {/* this will only be rendered in development */}
+      <ReactQueryDevtools buttonPosition="bottom-left" initialIsOpen={false} />
+
+      {showDevtools && (
+        <React.Suspense fallback={null}>
+          <ReactQueryDevtoolsProduction />
+        </React.Suspense>
+      )}
+    </>
+  );
+}
diff --git a/src/app/entry.tsx b/src/app/entry.tsx
index d42cf04..6980451 100644
--- a/src/app/entry.tsx
+++ b/src/app/entry.tsx
@@ -1,5 +1,5 @@
-import { ReactQueryDevtools } from '@tanstack/react-query-devtools';
 import { StrictMode } from 'react';
+import { Devtools } from './devtools';
 import { AppI18nProvider } from './providers/i18n/provider';
 import { AppQueryProvider } from './providers/query/provider';
 import { AppRouterProvider } from './providers/router/provider';
@@ -18,11 +18,7 @@ export function Entry() {
             {/* PWA */}
             <ReloadPromptSw />
 
-            {/* react query devtools */}
-            <ReactQueryDevtools
-              buttonPosition="bottom-left"
-              initialIsOpen={false}
-            />
+            <Devtools />
           </AppToastProvider>
         </AppI18nProvider>
       </AppQueryProvider>
diff --git a/src/index.d.ts b/src/index.d.ts
index 456ce1e..8ce00ec 100644
--- a/src/index.d.ts
+++ b/src/index.d.ts
@@ -5,3 +5,12 @@ declare module 'react' {
     [key: `--${string}`]: string | number;
   }
 }
+
+declare global {
+  interface Window {
+    /**
+     * Toggle react query devtools in production
+     */
+    toggleRqDevtools: () => void;
+  }
+}
diff --git a/src/modules/auth/components/login-form.tsx b/src/modules/auth/components/login-form.tsx
index c5d92c2..ec6d4f4 100644
--- a/src/modules/auth/components/login-form.tsx
+++ b/src/modules/auth/components/login-form.tsx
@@ -103,7 +103,8 @@ export function LoginForm() {
         className="mt-8"
         isDisabled={fetcher.state === 'submitting' || !formState.isValid}
       >
-        {t(fetcher.state === 'submitting' ? 'loginLoading' : 'login')} (0lelplR)
+        {t(fetcher.state === 'submitting' ? 'loginLoading' : 'login')}{' '}
+        (emilyspass)
       </Button>
     </fetcher.Form>
   );