[$] Mongoose OS for IoT prototyping

Mongoose OS is an open-sourceoperating system for tiny embedded systems. It is designed to run ondevices such as microcontrollers, which are often constrained with memory on theorder of tens of kilobytes, while exposing a programming interface thatprovides access to modern APIs normally found on more powerful devices. Adevice running Mongoose OS has access to operating system functionalitysuch as filesystems and networking, plus higher-level software such as aJavaScript engine and cloud access APIs.