To work with Mux on Live Videos App, we required Firebase. So you must setup a Firebase project. Follow our guide here:
    <ul>
        <li>Go to <a href="{firebaseLink}" target="_blank">Firebase Console</a> and Create a project or <b>Select</b> an <b>Existed Project</b>.</li>
        <li>Then go to your project <b>Dashboard > Build > Firestore Database</b>, and create a <b>Firestore database</b>.</li>
        <li>Go to <a href="{googleLink}" target="_blank">Google console credentials</a> and create a new service account key with key type is "json". Remember to select your project you just setup in previous step.</li>
        <li>Finally, add your json key file to below field.</li>
    </ul>