This site is served as markdown

Every page of this site is a .md file in content/. There is no JSX with the copy inside: the file is the source, and the site renders it.

That has a useful consequence. Since the markdown is still markdown on disk, it can be handed over as is to whoever asks for it:

curl -H "Accept: text/markdown" https://example/services
curl https://example/services.md

Both forms return the same file the page rendered. Adding a page is adding a file.