Rust Linux-compatible kernel
Scalable, optimized, secure RTOS for multiple hardware architectures
Hobby operating system, bootloader, kernel, drivers, C library
Real-Time Event Frameworks based on active objects & state machines
Free cooperative operating system designed for microcontrollers
x86-64 os made in crystal
PRTOS is a simple, compact preemptive RTOS for embedded systems
Mulithreading Arduno library
Neptune is a kernel and operating system for x86 PCs.
Embedded Real-Time Operating System (RTOS)
Nanux Kernel
An operating system based upon the MOSA kernel.