Earlier quoted context omitted.
There is no reason to use a synology device anymore with RPI’s having sata shields and other SoC boards that are readily available that run Linux. Yes, Synology was easy but so is the decision to not ever use them again…
This is just another version of "why Dropbox when rsync" and equally silly.
1) there exist viable commercial competitors providing approximately equivalent functionality
2) the roll your own solution with, e.g., TrueNAS, also provides equivalent functionality and is about 90% as easy.
I say this as someone who owns and manages three Synology boxes and one more recent TrueNAS box. There was a time when Synology offered something quite better than the alternatives, but that time is no longer.
My newest one (192TB) I bought the hardware pre-assembled and tested from a VAR, installed TrueNAS, and was off to the races. It cost more than buying the individual components would have, but it had zero headache and was cheaper than buying the equivalent amount of storage from Synology.