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In this tutorial, we'll use Firebase and CometChat to create an app with their services. Firebase is limited but free, it's more than enough to help you learn full-stack development. We’ll begin by installing the rest of the dependencies for this application. We'll use the Firebase SDK to create a new project called **freshers.app. Then activate the Google authentication service, as detailed below. Let’s build the frontend for interacting with CometChat and Firebase.