With XMPP URI it is possible to handle preauthentication and invitation to create an account on the server-side. It would be nice to properly handle those URI in BeagleIM as it could be a very nice feature for user onboarding.

See https://docs.modernxmpp.org/client/invites/ , https://xmpp.org/extensions/xep-0379.html and https://xmpp.org/extensions/xep-0401.html for more details.