I'm really enjoying working with MDX (JSX & markdown hybrid). https://mdxjs.com/

I was able to quickly put together a blog with some pretty nice features (e.g. margin notes): https://pratik.is/writing/essays/media-as-food

Writing content in markdown while adding interactivity with JSX is pretty nifty.

If you click "Raw" here you can see how the blog post is just markdown with some custom JSX elements littered in, e.g. <WrappedSidenote />: https://github.com/pringshia/pratik.is/blob/master/pages/wri...