How do you set up a new board ESP32-S3 N16R8

Maybe this’ll help other folks like me that aren’t interested in long form answers to simple questions:
Assumes you’ve managed to get esptool to work with your device.

Ask chatgpt to look for boards here: platform-espressif32/boards at develop · platformio/platform-espressif32 · GitHub
that match the data output by esptool. It found a match almost immediately.
Exercise due diligence of course.