SparkleShare creates a special folder on your computer.
    You can add remotely hosted folders (or "projects") to
    this folder. These projects will be automatically kept
    in sync with both the host and all of your peers when
    someone adds, removes or edits a file.

    SparkleShare uses the version control system Git under
    the hood, so setting up a host yourself is relatively
    easy. Using your own host gives you more privacy and
    control, as well as lots of cheap storage space and
    higher transfer speeds. We've made a simple script that
    does the hard work for you.