Xamarin.Forms Hot Reload with Brian Lagunas
https://www.youtube.com/watch?v=6vsSsxzlnjw

Xamarin.Forms 101 : OnPlatform
https://channel9.msdn.com/Shows/XamarinShow/XamarinForms-101-OnPlatform-Adjusting-UI-Based-on-Operation-System

Social Media Authentication with Xamarin.Forms
https://www.xamboy.com/2019/07/23/social-media-authentication-facebook-login-in-xamarin-forms/

Introducing AndroidX for Xamarin
https://devblogs.microsoft.com/xamarin/androidx-for-xamarin/

A Labeled Switch for Xamarin.Forms
https://medium.com/@tsjdevapps/xamarin-forms-how-to-create-a-labeled-switch-as-custom-control-for-android-and-ios-9192ea7a2084