I haven't tried it myself yet, but I believe you can add the

<script>

tags to a custom header—so you wouldn't have to fork the theme just for this. You'd just need to make a header html file with the script tags used by Quotebacks, then add the path to that header html as part of the publishing configuration YAML file. https://wiki.dendron.so/notes/YsEvJdnP5egPF1M6uvMBh/