Renders markdown bodies to HTML with MDEx (GFM extensions on).
Raw HTML inside markdown is allowed — this is the author's own site, and Octopress-era posts lean on embedded HTML. Non-markdown documents pass their body through unchanged.
Headings carry ids plus a trailing a.anchor deep link
(header_id_prefix), and GitHub-style alerts (> [!NOTE] …) render as
div.markdown-alert-* blocks — both styled by the official themes.