[unkulunkulu]

For me the title is a bit of a contradiction: I always think about the library as “the final language”. So author’s example of RoR/Ruby is “RoR is a great web service language that uses Ruby as the base, they evolved together and arguably as RoR is the main source of clients for ruby, ruby was as well designed for RoR as RoR for ruby”

I think about programming/design as languages/translation in a lot of ways: its languages all the way down.

[oaiey]

I agree. c# and asp.net core also co-developed. Interestingly in both direction, towards users (tons of type inference, removing boilerplate, ...) and system (writing highly optimized web servers with low level paradigms)