[jauntywundrkind]

I don't think the language hurts or hinders interop much? It has a wide range of tools that can adapt objects between different shapes, for when we do have two similar but different interfaces we are trying to bridge.

I struggle to see what more one could want. Do you have any specific features you think would help a massive ecosystem of packages be able to work together, when for example different packages have different Signal implementations?

[senoralligator]

Better ways to describe polymorphism, a better type system in general really. Look to async Rust for a great example of such interoperability.