H.M.F #1 · build your own

Mr. Mini
Tamagotchi

Wire an ESP32-C3 to a tiny OLED on a breadboard, flash the firmware, and a pixel face blinks back. Add a buzzer for sound and a motion sensor so it reacts when you pick it up — then poke it over USB or let an AI coding agent run it. From a bag of parts to a pet on your desk in one evening.