I think Paul wrote a script to do this to DropBox IIRC.
I have plenty of other ‘boxes’ locally so being able to FTP the backups or RSYNC to my NAS would be good. I’m not that precious about the data as it is more a real time thing - I record meter readings monthly for a long term view on usage. Backing up of settings, visualisations, dashboards etc is more important to me.
I was thinking recently it would be good to be able to limit the data stored to a fixed period of time.