What is Lych?
Lych is a hobby operating system for ARM64, written in Rust. It started as a learning project to understand how operating systems work at the lowest level — from the first instruction after reset to a functioning kernel with memory management, exception handling, and eventually scheduling and userspace.
The name "Lych" comes from the Old English līc, meaning "body" or "corpse" — a reference to the bare metal nature of kernel development, where you build the body of the system from nothing.