Especially the combination of Syncthing and `nncp-xfer` is super useful. NNCP usually has strict routing which can be a hassle to guarantee (machine D only gets packets from machine A if they went through machine B and C first).
Using Syncthing as a central storage for NNCP packets circumvents the strict routing requirement.
Using Syncthing as a central storage for NNCP packets circumvents the strict routing requirement.