IMO Ruby on Rails is one of the most successful uses of clever DSLs and metaprogramming. It probably created a few billion $ in value by enabling application de

IMO Ruby on Rails is one of the most successful uses of clever DSLs and metaprogramming. It probably created a few billion $ in value by enabling application developers to iterate quickly and skip template code that took 1000s of lines of Java. Learn how to do it in Ruby and you can make some libraries that do useful stuff for people who might definitely use it. It’s not the hippest language anymore but it has its niche.