Geminih is a library for Chicken Scheme to turn gemtext into SXML.
It exports one procedure geminih, that can take a single string for
the entire page, or a list of lines, or if given no argument reads
from current-input-port.
That procedure returns a list of SXML tags that you can cons body or
div on top of, or splice into a quasiquoted document.
Geminih also comes with a command-line utility for converting gemtext
to HTML.
The eponymous geminih command operates like a filter, reading gemtext
on standard input and writing partial HTML to standard output.
Analogous to Pandoc’s default HTML output,
the HTML produced by the command-line tool isn’t suitable as a standalone
document; it needs to be wrapped in additional tags to make it standalone.
For source code,
git clone https://idiomdrottning.org/geminih