Custom Provider log-in with OAuth only sign-up/log-in

So regarding this plugin: Discourse OAuth2 Basic Support - plugin - Discourse Meta

My use case is for Roblox, which they recently made their OAuth public beta. However they don’t expose any email for the user. In my case I really don’t need their email since I plan on disabling all emails for the entire discourse… But my issue lies that I believe discourse requires a email to sign-up with oauth?

So where do I stand? I want a discourse forum with only roblox oauth sign-in that their oauth does not provide a email.

What are my options?