Show HN: A Truly Modular Keyboard

A developer has created an open-source modular keyboard where each individual key is its own programmable PCB unit with a CH32V003 microcontroller, connected via pogo pins and held together by magnetic cases. The main board features Bluetooth and USB connectivity, with a stacked PCB design housing the STM32WB55RGV6 processor, battery charging, and flash storage, allowing fully rearrangeable layouts and wireless functionality.