Yukihiro Matsumoto ("Matz"), the creator of Ruby, is a professional
programmer who worked for
the Japanese open source company, netlab.jp. Matz is also known as one of
the open source evangelists in Japan. He's released several open source
products, including cmail, the emacs-based mail user agent, written
entirely in emacs lisp. Ruby is his first piece of software that has
become known outside of Japan.