Backup ZHA and Sonoff Bridge

Hi,
I am testing ZHA with sonoff Bridge. I use deconz today on a RPI but the fact it’s on a RPI makes me nervous of losing all my lights in the house. I have had problems with SD card before therefore sonoff Bridge seems a good option BUT what happens if this box goes down ? Let’s assume I have a new one on the shelf, what would I need to do to come back again ?

Found an answer here : https://www.reddit.com/r/homeassistant/comments/ixqbsw/backup_your_zhahusbzb1_stick_and_even_seamlessly/