Had a chance to read the wiki/docs deeper. Quarkdown seems to use puppeteer and chrome-print-to-pdf to generate PDF from HTML [1].

So, aside from the more minimal format or Markdown compared to HTML, I don't see much appeal in quarkdown compared to feeding HTML to a headless chrome instance.

But it is a cool project if one wants to turn a bunch of markdown files to say a book or an article.

[1] https://github.com/iamgio/quarkdown/wiki/pdf-export