.NET Framework vs .NET Core vs .NET Standard ?!?

I think get a grip on the latest trends only to learn that I'm still steps behind.  Thanks to Immo Landwerth for this clear article and cool tricks.  It's ten months old but new to me.  😑


.NET Standard - Demystifying .NET Core and .NET Standard

"NET Standard is a specification. Each .NET Standard version defines the set of APIs that all .NET implementations must provide to conform to that version. You can think of it as yet-another .NET stack, except that you can’t build apps for it, only libraries. It’s the .NET implementation you should use for libraries that you want to reference from everywhere."

Descriptions of .NET Implementations

	OS	Open Source	Purpose
.NET Framework	Windows	No	Used for building Windows desktop applications and ASP.NET Web apps running on IIS.
.NET Core	Windows, Linux, macOS	Yes	Used for building cross-platform console apps and ASP.NET Core Web apps and cloud services.
Xamarin	iOS, Android, macOS	Yes	Used for building mobile applications for iOS and Android, as well as desktop apps for macOS.
.NET Standard	N/A	Yes	Used for building libraries that can be referenced from all .NET implementations, such as .NET Framework, .NET Core and Xamarin.