Sourcegrapher here. We'll definitely release Ruby support in the future. Because Ruby has a lot of dynamic language features, it's important we do it well, and it takes some and thought. We track the coverage % of our analyzers for all languages we support, and our Ruby support isn't at our quality threshold yet.

We'll release Ruby when we can do it almost as well as Go (e.g., https://sourcegraph.com/github.com/golang/go/-/def/GoPackage...).