Sometimes you want to create that awesome control, but also want the user to be able to totally customize it… What do you do? Create a templated control! Xamarin.Forms has a pretty cool view that we can use: TemplatedView).
Templated Controls in Xamarin.Forms by Matthew Leibowitz
MonkeyCache is a simple but incredibly useful cache you can get up and running quickly in your app. Whether it's caching data for performance or offline ability, it's definitely a good option to look at.
MonkeyCache step by step by Jesse Liberty