Rui Carmo
I’ve been fooling around with this tonight, and it seems to work fine with my ARM-based Synology NAS and my Raspberry Pis, as well as my rather unconventional portable server.
It might well be good enough to replace Dropbox for a number of geekier one-off uses, especially considering that it’s pretty much a zero-install solution (drop in the “tiny” 3MB binary and run) and seems to support LAN sync without the hassle of visiting a public web site.