What are Ruby code wrappers (like Crate)?

Question

ruby

Google gave me this beauty - Crate, but it has not been updated for 9 years. And for some reason I doubt that he will make friends with Ruby 2.3 :)
I say right away - do not offer OCRA.

Answer 1

Would something like this fit? https://github.com/phusion/traveling-ruby. This is the closest I've come across for your request.