I just configured a family member's #Android phone to connect with #selfhosting @nextcloud@mastodon.xyz! Thanks to their first-party app and @davx5app@fosstodon.org the phone is independent from the Giant tech company: contacts, calendar, to-do, photo backup, everything works automagically.

The convenience of synchronisation between devices are the most common argument that I hear from friends why they are so invested in the respective walled gardens. But the same advantages can be obtained with old well-tested and open standards. Example: get an SMS with e-mail, add it to contacts and then have it autocomplete in @thunderbird@mastodon.online connecting to whichever mail provider your heart desires, thanks to the magic of CardDAV and IMAP. No need for Giant Mail :)