Real-time synced backup

[Adrigiraud]

Hello there,

I've purchased grsyncx on the apple app store from my Mac and am pleased by it as it does what I tell it to do. But I was hoping I could get it to sync my files in realtime (or almost) in the same way Time Machine could do but without all the Time Machine extra interface.

I've got a SSD drive always connected to my Mac with files that I edit, erase or move around. I would like grsyncx to mirror what happens to these files/this SSD in realtime (or with little delay) to a dedicated space on my NAS so I have an exact copy in case my SSD fails.
For now all I could do is to manually make a copy with grsyncx... But I would love not to have to worry about if I did or did not launch the grsyncx task...

If anyone knows how to achieve this I would greatly appreciate.

Cheers and stay safe !