Setting up the environment atm and I'll look into it. I also happen to have an m5stack core so will take a look at working with that. I look forward to contributing as I get up to speed

OK. I get the memory issue. However, could a workaround be that when an io pin used to change from one mode t the other the esp is forced to reboot? The selected mode could be stored in nvram and checked on boot as to which mode is required?

Hi, I've just came across your project and am looking at using it in in a project to update an old 80s boombox. This will be the first project using the SDK as I've been using the Arduino IDE so far so a spot of learning to do, though I'm familiar with C and similar tool chains from my Linux program...