SPI interface of ESP32-C6 SuperMini

Doesn't change much, concerning SPI interfaces.
Maybe these 2 topics can help you, although not the same board either:

https://forum.arduino.cc/t/cannot-configure-my-st7789-screen-with-esp32-c3-super-mini/

https://forum.arduino.cc/t/how-to-connect-st7789-display-to-esp32-c3-supermini/