iOS App Store requirement: Sign in with Apple

[trydalch]

I'm currently working on an app using Uno Platform, and I’ve come across a requirement from the Apple App Review team that’s quite common—implementing "Sign in with Apple" functionality.

While this is a standard requirement for apps on iOS, I’ve noticed that there isn’t a clear or documented way to implement "Sign in with Apple" directly within Uno Platform. Given the importance of this feature for iOS apps, I believe it would be beneficial to have official guidance or a built-in extension in Uno to support this functionality.

Here are a few points I think are worth discussing:

Current Workarounds: Are there any existing methods or third-party libraries that developers are using to achieve "Sign in with Apple" in Uno Platform? If so, what are the limitations?

Platform Support: Since this functionality is platform-specific, how would the Uno team recommend handling cross-platform authentication flows when "Sign in with Apple" is required on iOS?

Potential Integration: Would it be feasible to add this as a feature in Uno.Extensions.Authentication, or would it be better as a separate extension? What challenges do you foresee in implementing this?

Thank you for your time and all the great work on Uno!

[trydalch]

Looks like this is how MAUI provides it.