RubyWorld Conference 2021 Keynote Speakers decided 2021-10-04

The keynote speekers for RubyWorld Conference 2021 have been decided. We invite Yukihiro Matsumoto who is the creator of Ruby, and Akira Matsuda who is the committer of Ruby and the committer of Ruby on Rails.

The title will be announced later. Please look forward to it!


Yukihiro Matsumoto

Ruby Association

Yukihiro "Matz" Matsumoto is the creator of the recently popular Ruby language. He started development of Ruby in 1993, so it's actually as old as Java. Now he works for Network Applied Communication Laboratory Inc. (NaCl, also known as which has sponsored Ruby development since 1997. He also serves as a chairman of the Ruby Association, a non-profit organization focused on supporting Ruby. Since his real name is too long to remember and is difficult for non-Japanese speakers to pronounce correctly, he uses the nickname Matz on the Net.


Akira Matsuda


A Ruby committer (since 2011). A Rails committer (since 2013). A gem author who created kaminari, active_decorator, action_args, etc. Founder of Asakusa.rb (since 2008). Chief organizer of RubyKaigi (since 2015). One of the last Ruby Heroes (2015).