Addin' a New User from the Admin Panel

I'm usin' Firebase as my backend.

I've set up a signup form where the first account created becomes the admin. When that admin logs in, they see the admin panel.

Inside the admin panel, there's a page to add new users — either moderators or regular users.

Goal:

Each new user should be able to log in and see the user panel after logging in.

From what I can tell, FlutterFlow doesn’t allow creatin' a new user when someone’s already logged in. So how can I make this work? I want my admin to create users without loggin’ out.