Regularly save backups of Zigbee network to file. Backup manually or setup scheduling for zha-toolkit
https://github.com/mdeweerd/zha-toolkit
Unfortunately there is no integrated backup feature in ZHA yet for this is for Zigbee2MQTT, see request:
PS: By the way, it’s not recommended to use remote Zigbee adapter over WiFi with ZHA/Zigbee2MQTT:
https://www.zigbee2mqtt.io/advanced/remote-adapter/connect_to_a_remote_adapter.html