make use of firebase’s pre-built ui to authenticate users on our google apps script web app
Sometimes with Google Apps Script web apps you need a way to authenticate the user whilst also publishing the web app to run under a specific account. Sourabh Choraria details how Firebase can be setup allowing you to authenticate users with their Google account.
Source: integrate google sign-in using firebase auth on your google apps script web app
Member of Google Developers Experts Program for Google Workspace (Google Apps Script) and interested in supporting Google Workspace Devs.