With that said, the feedback (despite the tone) is valid, indicating with words that this programming language doesn't work on anything other than windows is an important feature for the landing page to present.

I can see clearly too, that it is for windows by the pictures, but better to say it with words.

Fair enough. Page now reads: "tool for creating filesystem automation plugins on Windows OS". That's all one could ask for.

There's a bash example on the home page, so it wasn't obvious to me it's windows-only.

pwsh aint windows only thou