My goal was to image my main Linux drive I have as a laptop, and also my Windows desktop. Then if either one went bad, or if I needed to, I could restore the images to those drives. I picked SMB because it seemed the simplest at the time.
I could do FTP, and no idea how to set up NFS to the drive. The hard drive plugged into the router is an external USB 3.0 drive.
This is the Router I purchased: https://www.amazon.com/gp/product/B07MRD1LDZ/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1