Yeah, add the scripts from the CDN to your server. Wappler will overwrite your custom source, though. You can prevent that with a workaround. Wappler checks the script source but not the type so that you can add Wapplers version as application/json and yours as the script.
Here is an example:
# your local script
<script src="pathToYourScript" defer=""></script>
#Stylesheet
<link rel="stylesheet" href="https://unpkg.com/@yaireo/tagify/dist/tagify.css" />
#dmx connect
<script src="/dmxAppConnect/dmxTagify/dmxTagify.js" defer=""></script>
#workaround to prevent Wappler from overwriting your script
<script type="application/json" src="http://unpkg.com/@yaireo/tagify" defer></script>