So I have started a Nuget package for Xamarin. This package is to help prevent me from constantly reinventing the wheel when possible.
For example, it includes several IValueConverters such as IsNull, IsNotNull, Invert, and StringLength. So with a single Nuget package, they can be retrieved.
As an added bonus, there is FontHelpers. These helpers allow you to retrieve the unicode values for Font Awesome 5 and Material Design Icons. So designing an application should be much faster. (Now only if I could quickly inject font icons as packages for Xamarin)
The package will be available here : https://www.nuget.org/packages/com.ptdave.xamarin/
If you find other things that would be useful and lightweight, please let me know.