Writing an OS in Rust: 5 Hard Problems You'll Face (And How to Solve Them) (opens in new tab)

Rust promises memory safety without garbage collection. That's why many of us dream of writing a kernel in it. After several years of building a from‑scratch operating system in Rust, I've collected the real — not theoretical — challenges that will make you question your life choices. Here are the five hardest problems, and the pragmatic solutions that actually work. 1. The unsafe Infection: Your Core is Not Safe The kernel's job is to manage memory, poke hardware registers, and handle interr...