Syncing with UNC path

[Vampire337]

I just set up FreeFileSync as a docker container on an existing PhotonOS Linux virtual machine. I want to sync a folder "/users/myname/documents" with "\\mylaptopname\c$\users\myname\Documents". I've been poking around in the webui and have been able to find the local storage location just fine, but I've had no luck with finding a way to add a UNC path. I tried symbolic links in the storage folder and that seems to not work. Is there a guide I haven't found which explains setting up a sync between a local folder and a network (UNC) share?

[xCSxXenon]

You could mount the network path and use the local mount point in FFS or use the UNC path directly

[Vampire337]

Using the UNC path directly doesn't appear to work (this is what I was trying to do initially). When I attempt to enter "\\mylaptopname\c$", FreeFileSync interprets it as "/config\\mylaptopname\c$" when I hit Compare. Since that doesn't seem to work, I was expecting to be able to add the UNC location (and credentials) in Other Locations, but I didn't see anywhere to enter it.

I will try mounting the UNC path externally. Where would I enter the credentials to connect to the UNC path to a CIFS share on another PC?