Cronhq only works if Rust is correct, not just fast, the whole product is a promise that a job fires exactly once, and that promise lives in ownership, lifetimes and error handling I couldn't hand-wave. Rust Adventure got me from reading syntax to shipping something real. It's workshop-shaped: you build working things and hit the borrow checker in situations that actually occur, rather than touring language features. The alternatives I tried were either reference material that assumed I already thought in Rust, or tutorials that stopped right before anything concurrent , which is precisely where my problem starts. Cronhq's scheduler and worker are async Rust coordinating through Postgres under load, and that's the part I'd have gotten wrong on my own.
Rust Adventure