The image definition is also open source and we update dependencies in response to CVEs. Pull requests are also welcome
This is quite similar to this plugin Topic List Previews (legacy)
Check Anonymizing Users in Discourse
We recently reworked our moderation queue UI and API. There is no cli client for it, but something for that could be easily doable with out API support.
Currently you can only go up to two levels deep for categories, plus cross-categories tags.
It’s open source, so everything is possible. However, we recommend following our official docs and reserve the right to not provide support for deploys who use custom tooling.
I will let the mailing list question for someone more familiarized with it .
We at Discourse would love to see KDE using our software! Looking forward to working with the KDE community.