[$] Four years of Zephyr

The Zephyr project is aneffort to provide anopen-source realtime operating system (RTOS) that is designed to bridge the gapbetweenfull-featured operating systems like Linux and bare-metal developmentenvironments. It'sbeen over four years since Zephyr was publicly announced and discussed here(apparentlyto a bit of puzzlement). In thisarticle, guest authors Marti Bolivar and Carles Cufi give an update onthe project and its community as ofits v2.3.0release in June 2020; they also make some guesses about its near future.