[cookrn]

I think ruby-sys was originally built into ruru, then separated out. Based on comments in PRs, I think the -sys convention is for Rust crates that map 1-to-1 to other languages C apis. Then, packages such as ruru create something more easy to consume and program against.

[steveklabnik]

Yes, this is correct. I haven't had more time to build up ruby-sys; and also, wanted to try to integrate it into helix rather than their libcruby-sys.