This project is about building a simple cellular device from scratch that works like a computer terminal. Instead of apps, touchscreens, and constant notifications, everything happens through a text-based interface with physical buttons, and nothing runs unless I tell it to. There’s no multitasking, no background processes, and no app system, which makes the device easy to understand and easy to debug. By cutting out extra features, the system only needs to handle input, cellular communication, and clear text output. The hardware is intentionally simple: a keyboard for input, a microcontroller as the brain, a cellular modem for network access, and a text display for output. It’s not meant to replace a smartphone—just to explore a more hands-on, intentional way to build and use a phone.