In a regular Diceware scenario, you roll 6 dice and match it with the corresponding word from the word list. In this application, it is simplified by getting a 32 bit random integer to get a random word from the word list.

The application asks to enable Wi-Fi because of the hardware random generator on the ESP32. You can enable the Wi-Fi radio to improve the randomness. You don't have to be connected to any network. If you automatically connect to a Wi-Fi network, go to the network settings and manually disconnect from it.