gentoo-overlay/gnome-extra/gnome-calendar/metadata.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE pkgmetadata SYSTEM "https://www.gentoo.org/dtd/metadata.dtd">
<pkgmetadata>
  <maintainer type="project">
    <email>gnome@gentoo.org</email>
    <name>Gentoo GNOME Desktop</name>
  </maintainer>
  <longdescription lang="en">
    GNOME Calendar is a simple and beautiful calendar application designed to
    perfectly fit the GNOME desktop. By reusing the components which the GNOME
    desktop is built on, Calendar nicely integrates with the GNOME ecosystem.
  </longdescription>
  <upstream>
    <remote-id type="gnome-gitlab">GNOME/gnome-calendar</remote-id>
  </upstream>
</pkgmetadata>