sync the database between different places

…otherwise Firefox's or Chrome's shared bookmark (and I don't even mention reddit or other webservices) would be better.

Nowadays we start something on a device, and go on on another one, to finish on a third or the first. Having a single database in a signel physical place can NOT be a solution now!

A solution could be tocreate a folder in a Dropbox sync'ed directory, but how would it deal with concurrent accesses?