@ajb2k3 said in Custom Firmware but NOT published / public: ESP-IDY Thanks but I'm asking about burning my .bin file via the m5burner tool specifically. The interface is nice and simple for a student or inexperienced employee to use and I'm using it already to burn the RTSP build before I burn mine. I'm using VScode atm and am able to burn my build with that but would like a single tool for both burns to simplify the process.