Matsumoto is a co-founder and president of the Ruby Association. He is also a core member of the Rails Core Team, the group that develops the Ruby on Rails web development framework.
In addition to his work on Ruby, Matsumoto has also contributed to other programming languages, including Perl and Python. He is the author of several books on programming, including "Ruby in a Nutshell" and "The Ruby Programming Language".
Here is a list of some of Matsumoto's notable works:
- Books
- Ruby in a Nutshell
- The Ruby Programming Language
- Software
- Ruby programming language
- RDoc documentation generator
- TracePoint debugger
- Onigmo (Oniguruma) regular expression library