Comment by phil_kahrl

It's not what you need, it's what you want but just don't know it yet. Use Rust/WASM and you get a superior package manager in Cargo. Rust gets you a solid type system that's built in instead of an add-on like TypeScript or Flow, and there is no need for a complicated build pipeline with Babel and WebPack, just a single compile target. Overall, I find working with Rust/WASM to be a better developer experience the working with the NPM/Js ecosystem.