Thanks for your help, Jon.

I had a lot of trouble getting your method to work, but working through the challenges step by step encouraged me to get more intimate with the build system. Eventually, I stumbled across this blurb in the ESP-IDF documentation:

https://docs.espressif.com/projects/esp ...

Hello,

It is time to move our project from ESP32-LyraT to our own hardware. What is the right way to create a new board definition? We could hack the components\audio_board\lyrat_v4_3 folder, but this doesn't seem appropriate or scalable.

Ideally, the new board definition should be a component of ...