Codon.Extras.Core (nuget): Codon Extras' core functionality is a shared code base in a .NET Standard library. Features that require platform specific implementation are implemented in respective platform specific packages. In the case of this package, the platform specific packages are: Codon.Extras.Android, Codon.Extras.Ios, Codon.Extras.Uwp, and Codon.Extras.Wpf.  Codon Extras includes a User Options system, Form Input Validation, an Undo/Redo Task system, application State Preservation, and various cross-platform launchers for sharing links, sending emails and so forth.  Codon is a zero-dependency cross-platform MVVM framework for creating UWP, WPF, and Xamarin applications. It provides much of what you need to rapidly create sophisticated yet maintainable applications.
Keywords: mvvm|xamarin|mvvmcross|mvvmlight|caliburn|android|uwp|ios|xaml