That is an impressive feat! I skimmed the github repository, but am not entirely clear about the technical concept: Does the microcontroller on the Korad main PCB also get new firmware? (I did not see any.) Or does the touch display's firmware make the display fully compatible with the standard LED display it replaces? (In which case, how does the touch control get fed back to the main processor??)
Thanks if anyone can shed more light on this!