You can use this extension by initializing your Firebase app as normal and then adding the Firebase App Check provider. Code example:
import { CloudflareProviderOptions } from '@cloudflare/turnstile-firebase-app-check';
const app = initializeApp(firebaseConfig);
const siteKey = 'YOUR-SITEKEY';
const HTTP_ENDPOINT = '${function:function-name.url}';
const cpo = new CloudflareProviderOptions(HTTP_ENDPOINT, siteKey);
const provider = new CustomProvider(cpo);
initializeAppCheck(app, { provider });
The CloudflareProviderOptions implementation can be found here: https://github.com/cloudflare/turnstile-firebase-app-check
As a best practice, you can monitor the activity of your installed extension, including checks on its health, usage, and logs.