@adi@twtxt.net @bml@twtxt.net @prologic@twtxt.net @eldersnake@twtxt.net @mckinley@twtxt.net Take share/sitemap.uppxml:

<?xml version='1.0' encoding='UTF-8'?>
<urlset xmlns='http://www.sitemaps.org/schemas/sitemap/0.9'>
#!
for f in *.html
do
#!
<url>
        <loc>$1/$(basename "$f")</loc>
        <lastmod>$(lmt -f '%Y-%m-%dT%H:%M:%SZ' "$f" | cut -d' ' -f1)</lastmod>
        <priority>1.0</priority>
</url>
#!
done
#!
</urlset>

lmt is scripted in there, also in ./share/l.upphtml. You can script lmt also in your Atom Feed. pp is called all over the place.