Explore the process and guidelines for contributing to Zephyr, the growing open-source RTOS for microcontrollers, in this 40-minute conference talk. Compare Zephyr's contribution methodology with that of Linux Kernel and U-boot patching systems, gaining valuable insights into open-source development for embedded systems. Learn about the importance of mainlining for microcontroller platforms, and discover tips and tricks to expedite patch merging. Delve into Zephyr's 4+ year history, its community growth, and its role in driving technology advancements for SoCs without MMU. Understand the release cycles and how to effectively participate in this next-generation RTOS ecosystem.