This is part of the official `SubGhz` app from [flipperzero-firmware](https://github.com/flipperdevices/flipperzero-firmware/tree/3217f286f03da119398586daf94c0723d28b872a/applications/main/subghz)

With changes from [unleashed-firmware
](https://github.com/DarkFlippers/unleashed-firmware/tree/3eac6ccd48a3851cf5d63bf7899b387a293e5319/applications/main/subghz)