After installing the 'grit' gem I required' it in macirb and received the following:
ben@Homeslice ~ Ϟ macirb
irb(main):001:0> require 'grit'
unrecognized defined? arg: 21 (NODE_AND)fish: Job 1, 'macirb' terminated by signal SIGABRT (Abort)
Is this a bug that should be logged? I've tried defined? RUBY_ENGINE in macirb and it appears to execute without a problem