[aidos]

That's starting to sound like a pattern on BTSync now.

What do you mean by non-cloud syncing? Have you tried Aero? I thought about doing a inotify/unison solution - apparently unison is good at dealing with conflicts and the like.

With all these syncing tools it's the uncertainty that causes issues. You're always worried about what data is going to end up where in the edge cases. As you say - at least with a few scripts glued together you know what's happening (and how to fix it if required).

[neumann]

Non-cloud = my clumsy way of saying operating on private servers with no 3rd party storage (and ideally no connection) necessary.

Looked into Aero, but I am pushing towards an open source alternative to be used, or at least where the implementation is fully controlled/configured by us.

I agree, unison is great and I think is the way forward towards a private dropbox solution.