It's quite exciting to see how much movement there has been in Async ruby. It's not a silver bullet for traditional Rails-like apps, but it's a whole new frontier for Ruby, and is particularly timely and helpful for LLM integrations.

It's also been done in a way that is transparent and practically colorless (in contrast to async/await), AND is competitive performance wise with the big dogs.

I expect it to gain in popularity over the coming years.