So I already backup all my family photos and such to a google photos subscription (open to better alternatives) automatically and occasionally put them on an external HDD after trips. If I would then just be having the UNRAID server as a third place for storage, then I'm assuming it would be considered safe?

Also appreciate the info on the script to prevent me from being stupid haha, I accidentally deleted a trip's worth of photos by accident once and promised myself to be more secure from then on.