diff --git a/CONTRIBUTORS.md b/CONTRIBUTORS.md
index 1bce2d6..4edc22f 100644
--- a/CONTRIBUTORS.md
+++ b/CONTRIBUTORS.md
@@ -15,6 +15,7 @@ Add yourself as a contributor to this project as a Markdown link that links your
 
 - [Caitlin Floyd](https://github.com/cafloyd) 🌸
 - [Raynaldo Sutisna](https://github.com/raaynaldo) 🏂
+- [Luis Augusto](https://github.com/luisaugusto) 🚀
 
 ## Code of Conduct Contacts
 
diff --git a/src/api/config.js b/src/api/config.js
index 47c4a10..d690a32 100644
--- a/src/api/config.js
+++ b/src/api/config.js
@@ -4,13 +4,12 @@ import { getAuth } from 'firebase/auth';
 
 // Your web app's Firebase configuration
 const firebaseConfig = {
-	apiKey: 'FILL_ME_IN',
-	authDomain: 'FILL_ME_IN',
-	databaseURL: 'FILL_ME_IN',
-	projectId: 'FILL_ME_IN',
-	storageBucket: 'FILL_ME_IN',
-	messagingSenderId: 'FILL_ME_IN',
-	appId: 'FILL_ME_IN',
+	apiKey: 'AIzaSyA7YIVJNC5iXcCYlttYcpdbjYVXZNJelOc',
+	authDomain: 'tcl-68-smart-shopping-list.firebaseapp.com',
+	projectId: 'tcl-68-smart-shopping-list',
+	storageBucket: 'tcl-68-smart-shopping-list.appspot.com',
+	messagingSenderId: '883336693926',
+	appId: '1:883336693926:web:773604791570b6315f4c67',
 };
 
 // Initialize Firebase
diff --git a/src/views/Layout.jsx b/src/views/Layout.jsx
index b559bbe..9918035 100644
--- a/src/views/Layout.jsx
+++ b/src/views/Layout.jsx
@@ -2,6 +2,7 @@ import { Outlet } from 'react-router-dom';
 
 import './Layout.css';
 import { auth } from '../api/config.js';
+import { useAuth, SignInButton, SignOutButton } from '../api/useAuth.jsx';
 
 /**
  * TODO: The links defined in this file don't work!
@@ -12,11 +13,13 @@ import { auth } from '../api/config.js';
  */
 
 export function Layout() {
+	const { user } = useAuth();
 	return (
 		<>
 			<div className="Layout">
 				<header className="Layout-header">
 					<h1>Smart shopping list</h1>
+					{user ? <SignOutButton /> : <SignInButton />}
 				</header>
 				<main className="Layout-main">
 					<Outlet />