Back up server software

I’m running 5.0.1 on my Omnia, and was wanting to set up a server to back up my devices to, and then inturn to back up (encrypted) to Google drive. I had found but it does not appear to be in the repos. /any suggestions please?

search OpenWrt’s package database for backup related packages that are provided by the distro, either via ssh cli opkg find or through LuCi or their package table (not very reliable)

maintain-config-backup or schnapps export?