RubyKaigi2017
http://rubykaigi.org/2017/presentations/v0dro.html

CRuby is still one of the most popular Ruby interpreters in use today, but it lacks speed. In this talk you will be introduced to Rubex - a new programming language that compiles to C, looks almost exactly like Ruby and is specifically designed for supercharging your Ruby code with minimal effort.

RubyKaigi 2017