@switchingsocial@mastodon.at @nextcloud
Quick side note - Nextcloud is a part of @yunohost 's system, giving easy, secure installation and panel management. It can be run on #Pi and other #SBC.
A not-unusual personal hosting option is to run it on the home LAN, and VPN to the server for your mobile device(s), for those concerned about putting their junk on the internet.