All the minimal features work now.
- describing a device
- describing a backup
- link a backup to a device
- schedule backups at day intervals
- mount the device
- put stuff on it
- umount the device
Downsides:
- executed as root, fully!
- all scripts are executed as root, dangerous!
- Bad and undocumented code.. :)
- No tests and only minimal checking (lotta TODOs)