Akira Matsuda
A Railer, Freelance

The founder of a Japanese Ruby community Asakusa.rb. http://asakusa.rubyist.net/

Probably the most active Rails core contributor in Japan. http://contributors.rubyonrails.org/contributors/akira-matsuda/commits

The author of several unique and useful gem/plugins for Rails 3.

• Kaminari
  New age pagination library https://github.com/amatsuda/kaminari

• hocus_pocus
  A magical engine that lets you build Rails apps from browser http://blog.dio.jp/2010/12/21/hocus_pocus

• i18n_generators
  A generator command that automatically generates and translates your locales/*.yml https://github.com/amatsuda/i18n_generators

• html5_validators
  A gem/plugin for Rails 3 that enables client-side validation using ActiveModel + HTML5 https://github.com/amatsuda/html5_validators

• traceroute
  A Rake task gem that helps you find the dead routes and actions for your Rails 3 app https://github.com/amatsuda/traceroute