@keks @andrestalz, could a first pass prototype be made using the following characteristics:

• pack your feed into files + control files in zip format.
• only include feeds which have been cleared for ssb-viewer display as those people have already vouched that they are ok with being publically viewed.
• work one way only, you just view it (or import it).

This might be not that hard to build and show the potential for helping with initial sync.