Dunno if this question belongs here but maybe you could have a look at it since you are involved in the zigbee network backup/restore aswell.
Apperently in the zha.toolkit running in HACS there is a good backup solution plus lots of other features for zigbee networks. However when your coordinator is connected to a TTY bus/port the backup does not work. iow it needs to be connected to a USB bus/port.
In my case with the a CC2531 coordinator running through tty I’m unable to backup and restore more over unable to switch from my current setup to a new sonoff coordinator while maintaining my device names and hence my zigbee based automations.
Is there something in the pipeline addressing this issue or is there a way to first changing from tty to usb? (For average linux user not entirely familiar with cli commands)
I did also try the method explained by Louis on youtube but that eventually failed or got stuck.