This should cover "backup" needs too.
This should be usable to ensure synchronisation process between 2 wiki bases. So it would be good to work on a subtree only when specifying import/export material.

You can currently backup your Deki Wiki and restore it through a mysql dump and backing up the attachments folder. This does require getting into root access though and requires some technical prowess

We have a backup script that is shipped with deki that does backups and restore from the command line. updateData.sh is the script name, depending on your distro it can be in the /opt/deki/src/scripts/ or /usr/local/bin/