tl;dw: Some ESP32-C3 chips have no built-in flash memory, and so require external flash to work. Unscrupulous sellers offer ESP32-C3 Super Mini boards with such chips, without adding external flash, and without even breaking out the pins you need to connect it yourself.
tl;dw: Some ESP32-C3 chips have no built-in flash memory, and so require external flash to work. Unscrupulous sellers offer ESP32-C3 Super Mini boards with such chips, without adding external flash, and without even breaking out the pins you need to connect it yourself.