MDX

epresso does not support MDX. Markdown is rendered with markdown-it (Markdown.

You can still mix interactive/output components into Markdown using component tags in content — the theme registers components (e.g. Highlight) that the Markdown renderer resolves server-side. So most MDX patterns (components inside a document) have a direct equivalent without a JSX/MDX compiler. Author the rest as plain Markdown with front matter.