layouts/partials/hooks/body-end.html

{{ with .Site.Params.algolia_docsearch }}
<script src="https://cdn.jsdelivr.net/npm/@docsearch/js@3"></script>

<script type="text/javascript">
  docsearch({
    container: '#search_box',
    debug: false // Set debug to true if you want to inspect the modal
  });
</script>
{{ end }}