The new .NET framework is modern, lean, modular and open source. No longer is .NET a system-wide installation – it is merely a folder. Instead of a huge underlying framework, you only pick and choose the pieces of the .NET framework that you need in your apps. And more importantly, you can package the required components of the .NET framework right alongside your app. We’re entering an age of app-runtime silos and ultimate portability. 

You already know how role-based authorization works in ASP.NET Core.

[Authorize(Roles = "Administrator")]
public class AdministrationController : Controller
{
}

But what if you don't want hardcode roles on the Authorize attribute or create roles later and specify in which controller and action it has access without touching source code?

DynamicAuthorization helps you authorize users without hardcoding role(s) on the Authorize attribute with minimum effort. DynamicAuthorization is built at the top of ASP.NET Core Identity and use identity mechanism for managing roles and authorizing users. 

The Open Hardware Monitor is a free open source software that monitors temperature sensors, fan speeds, voltages, load and clock speeds of a computer. 

Docker is a popular open source containerization tool.  

This post is about my recent experience of contributing to .NET, which has been open source since late 2014. 

 This effectively means that what looks like a very large chunk of .NET is now open source

Lists of .NET Obfuscator (Free, Trial, Paid and Open Source ) 

Analyzing code quality of widely-known open-source projects 

MathJax is an open-source JavaScript display engine for LaTeX, MathML, and AsciiMath notation that works in all modern browsers