Matt Eland installs Polyglot notebooks in VSCode:
Polyglot Notebooks is a powerful new interactive notebook technology that lets you run experiments in your editor, mix together code and rich documentation, and write code in a variety of languages to accomplish your tasks.
This article will guide you through the setup process to get Polyglot Notebooks running on your machine so you can do local data science and analytics notebooks using dotnet.
In case you’re curious, my installation has the ability to create notebooks in F#, C#, HTML, JavaScript, KQL, Markdown, Mermaid, Powershell, and SQL. I’m not positive how many of those come with the extension itself and how many are additional kernels I got from installing other extensions.