by Tobias Pfeiffer
at RubyConf 2015 on Nov 17th, 2015

by Thomas Enebo & Charles Nutter
at RubyConf 2015 on Nov 16th, 2015

by Eric Weinstein
at RubyConf 2015 on Nov 16th, 2015

by Noel Rappin
at RubyConf 2015 on Nov 15th, 2015

by Brandon Hays
at RubyConf 2015 on Nov 16th, 2015

by Leah Sexton & Christopher Sexton
at RubyConf 2015 on Nov 17th, 2015

by
at RubyConf 2015 on Nov 16th, 2015

by Laura Eck
at RubyConf 2015 on Nov 16th, 2015

by Sam Livingston-Gray
at RubyConf 2015 on Nov 17th, 2015

by Carina C. Zona
at RubyConf 2015 on Nov 15th, 2015

by Betsy Haibel
at RubyConf 2015 on Nov 16th, 2015

by Terence Lee
at RubyConf 2015 on Nov 17th, 2015

by Sonja Heinen
at RubyConf 2015 on Nov 16th, 2015

by Adam Cuppy
at RubyConf 2015 on Nov 15th, 2015

by Andy Croll
at RubyConf 2015 on Nov 15th, 2015

by André Arko
at RubyConf 2015 on Nov 17th, 2015

by Hsing-Hui Hsu
at RubyConf 2015 on Nov 15th, 2015

by Lito Nicolai
at RubyConf 2015 on Nov 17th, 2015

by Jeff Norris
at RubyConf 2015 on Nov 16th, 2015

by Rebecca Sliter
at RubyConf 2015 on Nov 16th, 2015

by Aja Hammerly
at RubyConf 2015 on Nov 15th, 2015

by Caleb Thompson
at RubyConf 2015 on Nov 17th, 2015

by Amar Shah
at RubyConf 2015 on Nov 16th, 2015

by Ian Duggan
at RubyConf 2015 on Nov 15th, 2015

by Mat Brown
at RubyConf 2015 on Nov 15th, 2015

by Tom Macklin
at RubyConf 2015 on Nov 16th, 2015

by Sam Phippen
at RubyConf 2015 on Nov 16th, 2015

by Colin Fulton
at RubyConf 2015 on Nov 15th, 2015

by Justin Searls
at RubyConf 2015 on Nov 15th, 2015

by Petr Chalupa
at RubyConf 2015 on Nov 16th, 2015

by Eileen Uchitelle
at RubyConf 2015 on Nov 17th, 2015

by Nickolas Means
at RubyConf 2015 on Nov 16th, 2015

by Brad Urani
at RubyConf 2015 on Nov 16th, 2015

by Jerry D'Antonio
at RubyConf 2015 on Nov 16th, 2015

by Adam Walker
at RubyConf 2015 on Nov 17th, 2015

by Federico Soria
at RubyConf 2015 on Nov 15th, 2015

by Randy Coulman
at RubyConf 2015 on Nov 17th, 2015

by Craig Buchek
at RubyConf 2015 on Nov 15th, 2015

by Yukihiro 'Matz' Matsumoto
at RubyConf 2015 on Nov 17th, 2015

by Adam Jonas
at RubyConf 2015 on Nov 15th, 2015

by David Copeland
at RubyConf 2015 on Nov 17th, 2015

by Evan Phoenix & Adam Keys
at RubyConf 2015 on Nov 17th, 2015

by Michel Martens
at RubyConf 2015 on Nov 15th, 2015

by David Bock
at RubyConf 2015 on Nov 17th, 2015

by Yurie Yamane & Masayoshi Takahashi
at RubyConf 2015 on Nov 17th, 2015

by Danny Guinther
at RubyConf 2015 on Nov 16th, 2015

by Kinsey Ann Durham
at RubyConf 2015 on Nov 16th, 2015

by Aaron Patterson
at RubyConf 2015 on Nov 15th, 2015

by Amanda Quaranto
at RubyConf 2015 on Nov 16th, 2015

by Jay McGavren
at RubyConf 2015 on Nov 16th, 2015

by Heidi Waterhouse
at RubyConf 2015 on Nov 15th, 2015

by Josh Freeman
at RubyConf 2015 on Nov 16th, 2015

by Joe Mastey
at RubyConf 2015 on Nov 16th, 2015

by Chris Mar
at RubyConf 2015 on Nov 15th, 2015

by James Adam
at RubyConf 2015 on Nov 16th, 2015

by Akira Matsuda
at RubyConf 2015 on Nov 17th, 2015

by John Cinnamond
at RubyConf 2015 on Nov 15th, 2015

by Jack Danger Canty
at RubyConf 2015 on Nov 16th, 2015

by Jason Clark
at RubyConf 2015 on Nov 17th, 2015

by Andy Croll , Kinsey Ann Durham , Sam Phippen , Aaron Patterson & Andrew Faraday
at RubyConf 2015 on Nov 15th, 2015

by Maggie Epps & Nikki Murray
at RubyConf 2015 on Nov 16th, 2015

by Micah Adams
at RubyConf 2015 on Nov 15th, 2015

by Nate Berkopec
at RubyConf 2015 on Nov 15th, 2015

by Sean Marcia
at RubyConf 2015 on Nov 16th, 2015

by Louisa Barrett
at RubyConf 2015 on Nov 15th, 2015

by Darin Wilson
at RubyConf 2015 on Nov 17th, 2015