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BeagleBone Black, like the Raspberry Pi, is a small, inexpensive computer that runs Linux. It’s smaller than a deck of cards and you can buy one for about forty-five dollars ($45.00). The device is made by CircuitCo in Richardson, TX,...

Ruby Version Manager (RVM) is one of my favorite tools in the Ruby ecosystem. Reason: RVM lets me experiment with Ruby and Rails at will. I don’t know about you, but my best experiments are full of risk so they...

Alexis Finch (@agentfin) captured Sketchnotes for a RubyMotion presentation that I gave for Groupon’s Geekfest. Sketchnotes are typography and drawing and notes all mixed together.

Note: This timeless story pre-dates the web, and it has appeared at WisdomGroup.com. Author unknown. There was a man who lived by the side of the road and sold hot dogs. He was hard of hearing, so he had no...

Ack is an open source command line tool that lets developers search large trees of source code very quickly. If you are looking for a method definition in a haystack of files, Ack will find that needle for you. Many...

I trust RVM to manage my Ruby versions and my gemsets. So when I saw an unexpected change in RVM’s behavior, I was concerned about a possible disruption in my workflow.