It certainly is a joy! I'd generalise it to any reasonable plaintext format.

Org mode keeps me locked in for this very reason.

No need for Emacs... pandoc (which I use) builds my static site. It supports enough Org markup to let me compile header metadata, latex, footnotes, markup etc. as well as inline live JavaScript code and use it in-page, just like I'd do in a regular stand-alone HTML page.

For example: a post with inlined static HTML and JavaScript, freely mixed-and-matched with org-native source block syntax. No plugins needed.

Raw: https://raw.githubusercontent.com/adityaathalye/shite/refs/h...

Pandoc-rendered live site: Compare Raw source with this section: https://www.evalapply.org/posts/animate-text-art-javascript/...

Github-rendered in repo (not github pages): It is (surprisingly) good enough for most Org content, including generating a nice Table of Contents... Except for any footnotes, and inlined or hosted JavaScript source (understandably, security may be a concern). https://github.com/adityaathalye/shite/blob/master/sources/p...