If you're like me and moved off from Ruby to Rust as your go-to-everything, try Loco which tries to be a faithful Rails on Rust (loco.rs). It has the magical scaffold, the smooth experience, and the features you'd expect from Rails including authentication built in (like Devise).
I just went over the Github and home page. This sounds like the sort of thing I'd be interested in, as my general go-to language is rust (For PC applications, embedded etc), but I still use python for web due to Django's comprehensive toolkit (Which Rails also has). I don't think I can stomach Async rust, which appears to be tightly integrated into Loco. (A side effect of Hyper and most of the rust web ecosystem being Async?)
Disclaimer: I'm one of the authors of Loco.