I am wondering what one can do to contribute to Ruby. Becoming a core member is far away from how much time I have, besides, it would take years to build up the trust. So that’s not the goal. I have submitted a small clarification of a comment once. I would send small PRs again if I see small things like that. But I want to do something in between. I.e. more than just occasional 1-3 line PRs, but less than becoming a long time member of the core team.
I have some useful, but no extensive knowledge on Ruby. I have done quite a bit of C extensions and while doing that, I have gathered some knowledge on how the data structures in Ruby are implemented in C. But I haven’t looked into the interpreter etc.