Sign_In_With_Apple_Flutter-Demo Sources https://medium.com/smartters-studio/flutter-login-with-apple-3a98582f53a1#:~:text=Open%20the%20Flutter%20project%20with,Open%20ios%20module%20in%20Xcode%20.&text=In%20Xcode%20go%20to%20the,and%20click%20on%20Signing%20%26%20Capabilities%20.&text=Click%20on%20the%20Capability%20and,and%20click%20on%20the%20result.