does kotlinx.html give the option to output an HTML file?

You can write to any

Writer

or

Appendable

per the README. So that means you can wrap a

Writer

around a file stream, or render to a

StringBuilder

and then write that string to a file.

so I would have to somehow write it to a file to process it, and then somehow link to that file in the code? Sounds like I would need a compiler plugin.

What are trying to do? Thought you wanted to generate a static site but it sounds like something else now

Oh. Interesting. What's the end goal with that?

Add Tailwind CSS support.

You don't need to write it to a file. What format do you want it to be in order to process it?