Writing posts in MDX

Posts can now be authored in MDX too, not just experiments. That means a blog post can embed a live, interactive component right in the middle of the prose — something the plain react-markdown post renderer could never do:

The rest of the post is normal Markdown, so existing writing habits carry over — lists, quotes, and fenced code with highlighting all still work:

export const greeting = 'hello from an MDX post'

Note: .mdx treats inline HTML as JSX, so if a post needs raw <details> or <iframe> markup it must be JSX-valid (closed tags, className, …). Posts that rely on loose HTML can stay as .md and keep rendering through react-markdown.