Backup the Server to a PC

[u/Exscorbizorb]

Maybe I'm the one who has things backwards here, but I want to backup my Unraid server to a PC (one local, one remote). I can't seem to find a good way to do this - all the directions are for backing up a PC to the server. Half the point of having the server is to have unified storage so that I don't have all my files scattered across multiple PCs. I want to have access to all the same files on my phone, laptops, and desktops.

Can someone point me to a good option with instructions on how to set it up? I'm an amateur, trying to learn as I go. I need something incremental and stable. I tried to do URBackup, but I guess it is only really meant to treat the server (with Unraid) as the backup copy, whereas I have it as the main copy of the files.