[hombre_fatal]

Express definitely has a bigger ecosystem and it's what most people, especially beginners, should use.

But they asked how Express 5 compared to competitors, you brought up Koa, someone suggested that Koa was superseded by async/await + some library in Express, and I pointed out Koa's little native feature that still makes it relevant to the few of us who ever used it.

I don't put a lot of importance on microframework ecosystems because 99% of their library middleware is just trivial wrappers around core libraries like https://github.com/jshttp. I write my own glue code in middleware and Koa's abstraction is just what I expect from server code.