[aaronbrethorst]

My favorite quote:

    this is actually a really pragmatic set of hackers
    that just hack on Ruby, hack on C and spend their
    time working on more interesting things using a
    more stable stack, rather than chasing after the
    latest and shiny tech.

[nailer]

There's also the 'Ruby syntax and performance at the same time' option - which used to be limited to JRuby but is quickly being replaced with Elixir.

[djur]

Elixir's syntax is only superficially similar to Ruby's, and its semantics are radically different. I don't think there's any evidence that people who picked up JRuby for performance reasons are notably likely to leave Ruby for Elixir versus other languages.

[bdcravens]

Also worth noting that within their stack, they don't chase the newest versions. Until about a year ago, they were running Rails 2.3, when they upgraded to Rails 3.0:

http://shayfrendt.com/posts/upgrading-github-to-rails-3-with...

[meesterdude]

I liked this too.

I definitely prefer working with a stack I know how to wield, and using it to solve problems. New things are good and useful, but having a focus means you can understand all the nuances that go along with it.