This video is a tutorial on how to use the 6th on 7th NAS to share files with the gallery.
This was recorded on a Windows computer but is largely the same on Mac
This is a link to the login information for the NAS :
https://docs.google.com/document/d/19vcqS-9Y8aF5ugTi7865tBNM54hqa1ERaB5u52eP6Gc/edit?usp=sharing