def _insert_rst_epilog(c):
    """Insert the rst_epilog variable into the configuration.

    This should be applied after other configurations so that the epilog can
    use other configuration variables.
    """
    c['rst_epilog'] = (
        """
.. |eups-tag| replace:: {eups_tag}
.. |eups-tag-mono| replace:: ``{eups_tag}``
.. |eups-tag-bold| replace:: **{eups_tag}**
    """
        .format(eups_tag=c['release_eups_tag']))
    return c
