Gwmngilfen@kensanata I use Nextcloud to sync everything - overkill for what you want though, unless you're already using Nextcloud. Some of the other suggestions in this thread are good instead ;)
Jonkman Microblog is a social network, courtesy of SOBAC Microcomputer Services. It runs on GNU social, version 1.2.0-beta5, available under the GNU Affero General Public License.
All Jonkman Microblog content and data are available under the Creative Commons Attribution 3.0 license.