taka
Web Developer, Software Engineer, and Father in 東京, 日本
twitter: @ma2ge
github:ma2gedev
gems: https://rubygems.org/profiles/ma2ge
PowerAssertEx:https://hex.pm/packages/power_assert
Speaker Deck: https://speakerdeck.com/ma2gedev
Qiita: http://qiita.com/ma2ge
medium: https://medium.com/@ma2ge
blog:http://ma2ge.herokuapp.com/
stackoverflow: ma2gedev