There are 2 repositories under coreclr topic.
PeachPie - the PHP compiler and runtime for .NET and .NET Core
.NET Platform Architecture book (English, Chinese, Russian)
Delegate-based C# P/Invoke alternative - compatible with all platforms and runtimes.
ASP.NET Core 5.0 Web Application using MySQL with Entity Framework
A .NET Core hosting library written in Rust with included bindings for nethost and hostfxr.
Old alt:V CoreClr (.NET Core Common Language Runtime) community made module. New: https://github.com/altmp/coreclr-module
The portable version of JetBrains profiler self API for .NET Framework / .NET Core / .NET / .NET Standard
The portable version of JetBrains profiler API for .NET Framework / .NET Core / .NET / .NET Standard / Mono
CoFlows - Containerised Polyglot Runtime CLR, JVM, Python and Javascript
A small demo web app (api) on .NET Core, NancyFX & Dapper
Prototype NET (CLR) Profiler written in C#
Library for hosting .NET Core in Linux, macOS, and Windows applications
A tiny hack of the System.Private.CoreLib to provide an Unmanaged EmitCalli implementation at the .NET Standard 2.0 layer.
D bindings for .NET Runtime hosting API
CoFlows Workspace Sample
Write open.mp script in the world of .NET
C# Client Library for SparkPost Email Service
Engineering notes on how to attach to a .NET process on docker