RubyWorld Conference 2023 Keynote Speakers decided

The keynote speakers for RubyWorld Conference 2023 have been decided. We invite Yukihiro Matsumoto who is the creator of Ruby, and Mayumi Emori who is a operating officer on the KCS Carrot Corp.

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.

Mayumi Emori

KCS Carrot Corp.
Operating officer

a Rails Girls Tokyo organizer, a member of Rails Girls Japan that supports the holding of Rails Girls in Japan. a judge of International Ruby Programming Contest for junior and senior high school students. "Web application for the first time ~ Take your first steps into programming with Ruby on Rails", an introductory programming book for begginners, has been published by Gijutsu-Hyoron Co., Ltd..