Rubinius is an alternative Ruby implementation created by Evan Phoenix.

Based loosely on the Smalltalk-80 Blue Book design,[2] Rubinius seeks to "provide a rich, high-performance environment for running Ruby code.

"[3] Rubinius follows in the Lisp and Smalltalk traditions, by natively implementing as much of Ruby as possible in Ruby code.

[4] It also has a goal of being thread-safe in order to be able to embed more than one interpreter in a single application.

[5] Evan Phoenix now works at HashiCorp.