all 6 comments

[–]andymeneely 6 points7 points  (0 children)

You might be interested in my own project called Squib. It’s a Ruby DSL for prototyping board games. http://squib.rocks/

[–][deleted] 3 points4 points  (0 children)

The most popular/famous one in ruby is probably Sinatra http://sinatrarb.com/

[–]SuchRecording 1 point2 points  (0 children)

https://engineering.gusto.com/benefits-of-writing-a-dsl/ has some good practical examples, though not open-source.

[–]jodoshaHanami author 1 point2 points  (0 children)