Spend too long in selected phone apps and the small AI pet on your desk starts getting sick. PolyMO changes its face and internal state when screen-time limits are exceeded, and it does not recover until the offending app is closed.

In normal use it can chat, read notifications aloud, and show needs such as hunger or boredom. Instead of presenting screen time as another number or warning, it reacts like a tiny creature whose condition visibly worsens when you keep scrolling.

Maker brenpoly built the system with Android monitoring app usage and sending state changes over BLE to an ESP32-S3 device. The unit has a 1.8-inch AMOLED display, microphone and speaker, while the phone runs local language, speech-recognition and text-to-speech models.

When an AI coding agent starts working, a small robot on the desk starts moving too. Tiny Engineer turns states such as reading files, thinking, writing code and finishing a task into physical gestures, display changes and sounds from a 3D-printed desktop robot.

Different stages of the job trigger different movements, and completion can even make the robot ring a real desk bell. Instead of watching a tiny status indicator in an IDE, you get something closer to a miniature coworker acting out what the agent is doing.

Creator Krzysztof Jamroz currently connects it to Cursor hooks. Under the hood, an ESP32-C3 receives REST API calls over Wi-Fi and drives five servos, an OLED display and a speaker, so other tools that can send HTTP requests can be connected as well.