By default, Upvoty uses its own SSO authentication. If a user is not logged in, we'll ask them to create an Upvoty account. If you want to disable this, and only use accounts from your own application, you can now set up your own SSO remote login URL. We’ll redirect your users to this URL where they’ll need to login to your application first.
Head over to Settings -> Identify Users and check out step 4 🙌