gentoo-overlay/app-misc/carbon-c-relay/metadata.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE pkgmetadata SYSTEM "https://www.gentoo.org/dtd/metadata.dtd">
<pkgmetadata>
  <maintainer type="person">
    <email>grobian@gentoo.org</email>
  </maintainer>
  <use>
    <flag name="lz4">add support for LZ4 compressed transport</flag>
    <flag name="snappy">add support for Snappy compressed transport</flag>
    <flag name="pcre2">use <pkg>dev-libs/libpcre2</pkg> as regex implementation</flag>
    <flag name="oniguruma">use <pkg>dev-libs/oniguruma</pkg> as regex implementation</flag>
  </use>
  <upstream>
    <remote-id type="github">grobian/carbon-c-relay</remote-id>
  </upstream>
</pkgmetadata>