Resea
A microkernel-based hackable operating system
resea is a small, message-passing-based operating system kernel designed with microkernel principles in mind. Written in C with minimal dependencies, it emphasizes modularity, isolation, and simplicity. resea includes a basic POSIX-like interface and supports multitasking, IPC, and user-space services. It serves as both a microkernel OS experiment and a platform for learning about low-level system design without the complexity of larger operating systems.