minsk VS Jurassic

Anything, this is the hello world for Minsk (the compiler being built in the vid)

https://github.com/terrajobst/minsk can be a good start, i believe there should be a series on YT where he explains it as well

Roslyn compiler for Dotnet, and the more grokkable scale model of it: Terrajobst’s Minsk. The key idea here is full fidelity trees, syntax trivia, and the idea that bits that fail to parse become leading trivia for the bits that do.

This guy literally copied the project from https://github.com/terrajobst/minsk/tree/master/src/Minsk

There are quite a lot of ways to run scripting languages in C#. I've no idea what JSR223 is but .NET has DLR for example. There are also multiple libraries: IronPython, NLua, Jint and Jurassic for Javascript. There's also older version of CS-Script working with .NET Framework.

The source code is here: https://github.com/paulbartrum/jurassic

The first step would be compiling TypeScript to JavaScript, and then JavaScript to .NET. It looks like there’s already a tool to do this called Jurassic, but note that it only accepts ES5, not ES6. I wasn’t able to find any tools which support ES6, but TypeScript can compile to ES5 with polyfills, so that’s not the end of the world. (IIRC you might hit performance problems with generators but I might be wrong)