 id="muk-data" src="resources/xml/config.xml"/>
      
      <xf:submission id="read-file" method="get" action="resources/xml/config.xml" replace="instance" instance="muk-data"/>
      
      <!-- Data root -->
      <xf:bind id="data-root" nodeset="/config/data-root"/>
      
      <!-- Add/update data root in config, create collections according to config -->
      <xf:submission id="init-data-root" action="xq/init-data-root.xquery" method="post" replace="none" instance="muk-data" ref="/config/data-root"/