I showed my 7 year old. She was very amused and still does not believe there are any dolphins.

That’s what xmpp is. It was embraced by Google and Facebook and killed.

I have a home server and a laptop. Both run different versions of Ubuntu

Mine is large enough to be a capybara.

Best is so subjective.

I am running pivpn, pihole, all the arrs, jellyfin, gitea and rundeck.