laughs/cries in embedded we are currently changing from mbed to zephyr rtos. at the beginning it was decided we will never replace mbed, the thing i am currently replacing, so all the code is using parts of mbed everywhere. there’s not enough space on the chip to have both mbed and zephyr in parallel. yay. you desktop/server/web/whatever people don’t how good you have it.
On the official page it says that it is pronounced For Jay Yo (at least close enough)