MySolution/
??? MyGame.Shared/          (netstandard2.0 - game logic, no platform code)
?   ??? GameWorld.cs
?   ??? Components/
?   ??? Systems/
??? MyGame.DesktopGL/       (mgdesktopgl - Windows/Linux/macOS)
?   ??? Program.cs
??? MyGame.WindowsDX/       (mgwindowsdx - Windows DirectX)
?   ??? Program.cs
??? MyGame.Android/         (mgandroid)
?   ??? Activity1.cs
??? MyGame.iOS/             (mgios)
    ??? AppDelegate.cs
