Depends on how you learn. Some learn by being around others, social interaction, asking questions and absorbing knowledge. It&#x27;s clear you fall into the latter category which likes to learn by diving right into the code, so here it is:<p>.NET CLR Managed Runtime - <a href="https:&#x2F;&#x2F;github.com&#x2F;dotnet&#x2F;coreclr" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;dotnet&#x2F;coreclr</a><p>.NET Framework - <a href="https:&#x2F;&#x2F;github.com&#x2F;dotnet&#x2F;corefx" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;dotnet&#x2F;corefx</a><p>.NET Compiler as a Service (&quot;Roslyn&quot;) - <a href="https:&#x2F;&#x2F;github.com&#x2F;dotnet&#x2F;roslyn" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;dotnet&#x2F;roslyn</a><p>.NET Orleans Actor Framework - <a href="https:&#x2F;&#x2F;github.com&#x2F;dotnet&#x2F;orleans" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;dotnet&#x2F;orleans</a><p>Mono Framework - <a href="https:&#x2F;&#x2F;github.com&#x2F;mono&#x2F;mono" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;mono&#x2F;mono</a><p>Xamarin iOS, Watch, Mac Bindings and Framework - 
<a href="https:&#x2F;&#x2F;github.com&#x2F;xamarin&#x2F;xamarin-macios" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;xamarin&#x2F;xamarin-macios</a><p>Xamarin Android Bindings and Framework - <a href="https:&#x2F;&#x2F;github.com&#x2F;xamarin&#x2F;xamarin-android" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;xamarin&#x2F;xamarin-android</a>