Is this just a way to trigger rsync every time a change happens to a given folder?

Looks like this command powers it:

  rsync -rav --stats --log-file=/home/$USER_NAME/.lipsyncd/lipsyncd.log -e "ssh -l $USER_NAME -p $SSH_PORT" --delete $REMOTE_HOST:$LOCAL_DIR $REMOTE_DIR

Couldn't you just toss that in a Guardfile and get the same effect?

  https://github.com/guard/guard/

Or am I oversimplifying it?