After a long hiatus here is finally a new release of Ibis. The user interface received some polishing, and can now be translated to different languages. You can help with translations via Weblate.
If you already have an account and want to fill it with more articles, use the new Wikipedia import! You can import individual articles by Url on the "Create Post" page. Or write a bulk import script with curl https://ibis.example/api/v1/article/import -d 'url=https://en.wikipedia.org/wiki/Pet' -H 'Cookie: auth=my_auth_cookie'.