Kouhei Sutou has 3 videos available on Confreaks.TV. Their most popular video is The history of testing framework in Ruby which has been viewed 104 times since it was posted on 02/04/2016.
[JA] How to create bindings 2016 at Ruby Kaigi 2016 25 total views
The history of testing framework ... at Ruby Kaigi 2015 104 total views
Three Ruby Usages - High Level In... at Ruby Kaigi 2014 52 total views
