In today's lesson, we'll cover the aspect of logging out of our application by tapping the Log Out button in our Settings page. Upon logging out, we'll first make a call to Firebase Auth and sign out of our application. Next we'll discuss another step in our app where we can setup custom delegation again to signal that our user has logged back in. This might be a little hard to follow if you're not used to setting up these delegation links, so make sure to leave any question down below.