So what's your iteration time like? I've always gotten about 2 seconds between making a change and testing it out with other web servers - curious as to how long it takes with Rust.
On my laptop (2017 macbook air with an i3 and 8GB ram), about 45 seconds. On my desktop (Ryzen 5600G, 32GB ram), 2-15. I haven't tried any techniques to reduce the compilation time yet.