No

[quiet sapphire]

How are you running HA?

Then how do you back up stuff already?

You can use rsnapshot

It works well, but there's loads of other options too

I use rsnapshot on a central server and pull all my backups there

rsnapshot handles all that for you

You basically tell it how many hourly/daily/weekly/monthly/yearly backups you want to keep and it just handles it all

Sure

https://rsnapshot.org/

Or you can use https://rclone.org/ to push to cloud storage

Well, SMB doesn't work well for this

You want to see what else your NAS supports

For rsnapshot no

NFS would

But... does your NAS allow you to run software on it?