The original plan for PDC 1.0 was that it would provide the steps to bootstrap a vanilla linux install on a Raspberry Pi 2, install Docker on it and then build up docker images and containers to which would provide file syncing through BitTorrent Sync as well has automated NAT port forwarding to ensure remote administration was possible through ssh.
While that is still a goal I have for that project, getting a vanilla linux install that supports kernel features required by Docker is taking more time that I had expected, so I am moving that aspect of the project to a later time. The initial work on this project is going to use a linux image I found here. Thanks to Sjoerd Simons for providing that.