A modern programming language that makes developers happier.

kotlinlang

Has anyone tried or has insight into writing extension for VS Code in Kotlin (using JS backend)?

No one has tried doing so. Any attempt to do so would require VS Code to have good Kotlin support (via a third party plugin), which is very lacking (very poor; basic stuff like syntax highlighting is missing/broken) and would need to be at the same level of support that C# has.

Well, I am trying that right now and so far works well. I will be problematic to debug with Community IJ but otherwise was quite easy to set up.

Aso don't quite see why would I need a Kotin plugin for vscode, maybe except for debugging