.NET

 .NET  is a free and open-source, managed computer software framework created and maintained by Microsoft for Windows, Linux, and macOS operating systems, and used by at least one IndieWeb site.

.NET can be used for building:


 * Web apps
 * Desktop & mobile apps
 * Games
 * Internet of Things (IoT)
 * Machine learning applications

IndieWeb Examples
Examples of IndieWeb community members who are using .NET on their personal sites:

built his personal website using custom static website generator built with .NET. He also uses WebmentionFs to accept Webmentions on his site.

Languages

 * C#
 * F#
 * Visual Basic

Libraries
WebmentionFs - Library for Webmention endpoint discovery, sending, and receiving.

Blog Posts

 * Accept Webmentions using F#, Azure Functions, and RSS
 * Sending Webmentions with F#