Git is no good for binaries. And SparkleShare is dead. The proper alternative is SyncThing https://syncthing.net/ I have it on my home and work laptops, a NAS and a VPS and it just works brilliantly.
Syncthing has almost 10,000 stars, so it's not like others hadn't discovered it yet. Is there a way for me to browse all the popular repos on Github so I can see what other amazing things I've been missing? There's [0], but that just shows me an utterly useless view of all the repos I've starred.