<ul data-eligibleForWebStory="false">C programmers often create their own cooperative multitasking system, with various approaches available.Christoph Wolcher developed an elegant cooperative multitasking system in C, well-documented and relying on state machines.Although recommending the use of an RTOS or Rust, Christoph's system showcases simplicity using macros.The system showcases different ways to implement cooperative multitasking, emphasizing its pros and cons alongside other multiprocessing techniques.