I have two things in mind,

1. Headless eCommerce in go

2. A Clojure like language for PHP in Clojure (will be very simple)

After looking at "Making the Tokio scheduler 10x faster" I was thinking how hard it's gonna be to create a Clojure for rust. That will leverage rust's ecosystem. That means you get max performance of rust and get to use it with a nicer language.