Why i built this? There is no bluetooth keyboard available which has fast forward. No car audio has fast forward, not even Android auto split screen support it. Why i need it? I want it to skip fluff at the beginning of trance tracks and i will not listen to mixes or streams, im oldskool. If you're same minded, you can build it too. You need ESP32-C3 Super Mini and red touch buttons or any other you like with NO contact switching to +3.3V, if you don't want to modify the program.
Program needs ESP32 board pack, HijelHID BLE library in Arduino and that's it. No rocket science IDEs.