I wouldn’t shortchange how much making the barrier to entry lower can help. You have to fight Rust a lot to build anything complex, and that can have a chilling effect on contributions. This is not a dig at Rust; it has to force you to build things in a particular way because it has to guarantee memory safety at compile time. That isn’t to say that Rust’s approach is the only way to be sure your code is safe, mind you, just that Rust’s insistence on memory safety at compile time is constraining.

To be frank, this isn’t necessary most of the time, and Rust will force you to spend ages worrying about problems that may not apply to your project. Java gets a bad rap but it’s second only to Python in ease-of-use. When you’re working on an API-driven webapp, you really don’t need Rust’s efficiency as much as you need a well-defined architecture that people can easily contribute to.

I doubt it’ll magically fix everything on its own, but a combo of good contribution policies and a more approachable codebase might.