by Nell Shamrell-Harrington
at RubyConf 2013 on Nov 9th, 2013

by Steven Harms
at RubyConf 2013 on Nov 9th, 2013

by André Arko
at RubyConf 2013 on Nov 8th, 2013

by Jim Weirich
at RubyConf 2013 on Nov 9th, 2013

by Emily Stolfo
at RubyConf 2013 on Nov 8th, 2013

by Andy Pliszka
at RubyConf 2013 on Nov 9th, 2013

by Ernie Miller
at RubyConf 2013 on Nov 10th, 2013

by Evan Light
at RubyConf 2013 on Nov 8th, 2013

by Forrest Chang
at RubyConf 2013 on Nov 10th, 2013

by Kinsey Ann Durham
at RubyConf 2013 on Nov 10th, 2013

by Tom Stuart
at RubyConf 2013 on Nov 9th, 2013

by Mark Bates
at RubyConf 2013 on Nov 10th, 2013

by Bryan Liles
at RubyConf 2013 on Nov 8th, 2013

by Matthew Kirk
at RubyConf 2013 on Nov 9th, 2013

by Casey Rosenthal
at RubyConf 2013 on Nov 8th, 2013

by Eric Hodel , Davy Stevenson & Rein Henrichs
at RubyConf 2013 on Nov 9th, 2013

by Doel Sengupta & Manu Singhal
at RubyConf 2013 on Nov 8th, 2013

by Marc-André Lafortune
at RubyConf 2013 on Nov 10th, 2013

by Yukihiro 'Matz' Matsumoto
at RubyConf 2013 on Nov 8th, 2013

by Tony Arcieri
at RubyConf 2013 on Nov 10th, 2013

by Conrad Irwin
at RubyConf 2013 on Nov 8th, 2013

by Andrew Havens
at RubyConf 2013 on Nov 10th, 2013

by Xavier Shay
at RubyConf 2013 on Nov 8th, 2013

by Jason Clark
at RubyConf 2013 on Nov 8th, 2013

by Jonathan Wallace
at RubyConf 2013 on Nov 8th, 2013

by Charles Max Wood
at RubyConf 2013 on Nov 10th, 2013

by Johnny Winn
at RubyConf 2013 on Nov 10th, 2013

by Nicolas Viennot & Kareem Kouddous
at RubyConf 2013 on Nov 10th, 2013

by Stephen Henrie
at RubyConf 2013 on Nov 9th, 2013

by Jerry D'Antonio
at RubyConf 2013 on Nov 9th, 2013

by Dirkjan Bussink
at RubyConf 2013 on Nov 9th, 2013

by Koichi Sasada
at RubyConf 2013 on Nov 8th, 2013

by Matt Aimonetti
at RubyConf 2013 on Nov 10th, 2013

by Nathaniel Talbott
at RubyConf 2013 on Nov 10th, 2013

by Pat Shaughnessy
at RubyConf 2013 on Nov 9th, 2013

by
at RubyConf 2013 on Nov 9th, 2013

by Patrick Van Stee
at RubyConf 2013 on Nov 9th, 2013

by Jim Gay
at RubyConf 2013 on Nov 9th, 2013

by Sandy Vanderbleek
at RubyConf 2013 on Nov 8th, 2013

by Sam Rawlins
at RubyConf 2013 on Nov 9th, 2013

by Yukihiro 'Matz' Matsumoto
at RubyConf 2013 on Nov 10th, 2013

by Loren Segal
at RubyConf 2013 on Nov 8th, 2013

by Michael Fairley
at RubyConf 2013 on Nov 9th, 2013

by Luca Bonmassar
at RubyConf 2013 on Nov 8th, 2013

by Katie Hagerty & PJ Hagerty
at RubyConf 2013 on Nov 9th, 2013

by Zachary Scott
at RubyConf 2013 on Nov 8th, 2013

by Ron Evans
at RubyConf 2013 on Nov 9th, 2013

by Yurie Yamane & Masayoshi Takahashi
at RubyConf 2013 on Nov 9th, 2013

by David Copeland
at RubyConf 2013 on Nov 10th, 2013

by Thomas Enebo & Charles Nutter
at RubyConf 2013 on Nov 9th, 2013