Gadget export
To export the Shortdesc-helper gadget, click on "Download" button, save the downloaded file, go to Special:Import on the destination wiki and upload it. Then add the following to MediaWiki:Gadgets-definition page:
* Shortdesc-helper [ResourceLoader |dependencies=mediawiki.api, user.options, mediawiki.util, ext.gadget.libSettings |skins=vector, vector-2022, monobook, modern, timeless |peers=Shortdesc-helper-pagestyles-vector] |Shortdesc-helper.js |Shortdesc-helper.css
You must have appropriate permissions on the destination wiki (including the right to edit system messages) and import from file uploads must be enabled.