Hacker News Reader

It took about one year. We originally implemented the compiler in Ruby and because of its similarity with Crystal (or the other way around ;-)) porting it to Crystal was pretty easy in the end.

There's this tag: https://github.com/manastech/crystal/releases/tag/ruby

You can read about the bootstrapping moment here: http://crystal-lang.org/2013/11/14/good-bye-ruby-thursday.ht...

From what I understand in another post of their's, Crystal used to be written in ruby, before they successfully compiled it using Crystal.

originally Ruby http://crystal-lang.org/2013/11/14/good-bye-ruby-thursday.ht...