Adafruit ESP32-S3 Manual page 259

https://raw.githubusercontent.com/espressif/arduino-esp32/gh-pages/
package_esp32_dev_index.json
Add the URL to the the Additional Boards Manager URLs field (highlighted in red
below).
Click OK to save and close Preferences.
In the Tools > Boards menu you should see the ESP32 Arduino menu. In the expanded
menu, it should contain the ESP32 boards along with all the latest ESP32-S2 boards.
Now that your IDE is setup, you can continue on to loading the sketch.
Load the Blink Sketch
In the Tools > Boards menu you should see the ESP32 Arduino menu. In the expanded
menu, look for the menu option for the Adafruit Feather ESP32-S3 TFT, and click on it
to choose it.
Open the Blink sketch by clicking through File > Examples > 01.Basics > Blink.
©Adafruit Industries Page 259 of 263