Last December I joined the Dallas Makerspace. It is an awesome place where people are welcome to work on a variety of projects. The space also owns many tools that most people would not normally have access to; some of these require training.
In order to enforce this, we have been working on an RFID based power interlock that we can build and use to only connect the power for approved users.
I have made some progress in writing the code in Java for a BeagleBone Black board running Angstrom Linux, and created a demo video.