The Flipper Zero is based to the FreeRTOS working procedure. This is a genuine-time working method kernel for microcontrollers that was developed back in 2003 and distributed under the MIT license. The exciting detail relating to this device is that it's a tool to hack as well as other things. https://flipperzeroamazon88484.blogdomago.com/35137651/the-ultimate-guide-to-flipper-zero-jam-wifi