Daniel Johnson is a full stack developer who has been programming since 1990, and focused on Open Source technologies since 2003. Jobs have ranged from telephone tech support to systems administration, and freelance software development. He has spent the most time in the last few years working with Rails, AngularJS, Android, and Arduino. In 2014 he founded a users group for C, C++, and Assembly. He was the first person to document how to use the intel real sense 3d camera with Linux.