Have you heard about the growing Zephyr Project, hosted by the Linux Foundation, that aims to build an open-source real-time operating system (RTOS) for the IoT? The project was recently evaluated by the NCC Group, and was deemed "a mature and highly active project with increasing market share".
The Zephyr Project is a small, scalable real-time operating system for use on resource-constrained systems supporting multiple architectures.
The NCC Group issues a report in May 2020 outlining the issues discovered in detail and acknowledged the proactive work of the Zephyr Project Security Committee to fix these issues.
