Seems pretty interesting... but I wonder what differentiates this from static website generators like jekyll or zola, which also use markdown for content.

audacious! but maybe they're going too far? there seems to be an escaping bug on their own documentation page.

this:

is rendering for me as this:

Note that the <code> tag on the "inlinedHighlight" example does not appear in the source column. Looking at the generated DOM, I see this:

...which only raises further questions. (Why is something unescaping the < but not the  ?)

Also, before I relaxed NoScript, it rendered like this:

I also don't see how the diagram feature could practically produce good results more often than bad ones without a lot of practice, but it's pretty neat when you get it right.

I don't think this is likely to displace Markdown :) but I could see maybe trying it for a project sometime.