How to backup file from HA to Synology (push or pull mechanism)

I’m trying to get my head around in backing up my backups that I make on a daily basis to my Synology server. However, I would like the process to be triggered from my Synology server.
I have created a rsync user on my synology server.
The next step is where I have a hard time…how do I setup it up to actually logon to the HA server and to fetch the data from the backup folder and copy it to the Synology server.
Or should I trigger the process from HA and copy things to the Synology server?

I did install the RSYNC addon from Hassio-Addons/config.yaml at main · Poeschl/Hassio-Addons · GitHub but I was wondering if things could be setup the other way around. I know when HA creates the backup so initiating the copy from Synology seemed like a good idea. I have been wrong before…
Any suggestions are welcomed.

I use THIS addon to store backups to any samba share Check it out. I use HA automation to trigger backup copy, but i guess it can be triggered another way…