Coyote of the Snows@craigmaloney Syncthing or NextCloud. I think syncthing is probably what you are looking for, but I think its easier to backup NextCloud.
Chirp! is a GNU Social instance for the Cooley and Sekula families and their friends.
Chirp! is a social network. It runs on GNU social, version 2.0.1-beta0, available under the GNU Affero General Public License.
All Chirp! content and data are available under the Creative Commons Attribution 3.0 license.