gentoo-overlay/app-backup/btrbk/metadata.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
<pkgmetadata>
    <maintainer type="person">
        <email>candrews@integralblue.com</email>
        <name>Craig Andrews</name>
    </maintainer>
    <maintainer type="person">
        <email>axel@tty0.ch</email>
        <name>Axel Burri</name>
    </maintainer>
    <maintainer type="project">
        <email>proxy-maint@gentoo.org</email>
        <name>Proxy Maintainers</name>
    </maintainer>
    <longdescription lang="en">
        Tool for creating snapshots and remote backups of btrfs subvolumes
    </longdescription>
    <use>
        <flag name='pv'>Use sys-apps/pv to enable progress bar functionality</flag>
    </use>
</pkgmetadata>