That's the idea with Freedombox. Host your own email server, website, chat server. Servers nowadays are called "clouds", so the idea is to have a "cloud" in your own home, under your control.
It's very similar to arkOS:
https://www.freedomboxfoundation.org/goals/index.en.html
But nothing on this page is clear exactly which software packages are included, or how the distributed filesystem is federated, etc.
Here are the packages that are currently included: https://github.com/freedombox/Plinth/tree/master/plinth/modu...
That's tor, owncloud, openVPN, mumble, pagekite, xmpp, ikiwiki, shaarli, transmission, roundcube.
There are also plenty of ideas for new applications/services/protocols, like replacing DNS, that would be a good fit.
Why Political Liberty Depends on Software Freedom More Than Ever
Video: https://www.youtube.com/watch?v=-BSLBvwyUEs
Transcript / Highlights / More https://wiki.debian.org/FreedomBox/TalksAndPresentations#A20...:
Really worth watching.
It’s a distribution to run on a small “plug server” in your home.