I have an occasional hankering to create a Rust port of @psalm. With all the work I've already done on https://hakana.dev, it would be about a month of effort, but it's a terrible idea.
It would be at least 5x faster, but, I think, inferior in every other respect to a PHP-based system. You wouldn't be able to use existing plugins, & only 1-2 people would have any interest in maintaining it.
Dumping it on the PHP community would be like giving a new car to someone who can't afford the gas.
