I think depending on the type of project, Rust might already be there. A couple of bullets raise questions: > ready to use tooling support This really depends

I think depending on the type of project, Rust might already be there. A couple of bullets raise questions: > ready to use tooling support This really depends on the use case. If the tooling you're looking for is "Unreal Engine", then Rust is definitely not there yet. But if you want to write network services, databases, CLI tools, etc., I think Rust has been fully viable with good tooling and library support for years now. > easy to hire if project expands No doubt hiring experienced Rust developers is hard, because there aren't that many yet. But anecdotally, training Rust developers is much easier than training C++ developers. Rust makes it easier for one or a few experienced folks to have confidence that a larger number of less experienced contributors aren't introducing stability or security issues.