For prosody you'll need the community modules repository from https://modules.prosody.im/ to have modern features.

Also please don't enable public registration on your server, or it will become a spam relay in a matter of weeks: https://yaxim.org/blog/2017/12/22/spam-reduction-on-yax-dot-...

It's perfectly fine to host XMPP for family&friends, and you can give them access directly if needed.