Developed and delivered the SdraKb00 keyboard firmware for the srwi/qmk_firmware repository, focusing on a 3x4 macro pad with hot-swappable keys and RGB backlighting. The work established default keymaps for both base and function layers, enabling users to switch layers and access numpad functionality efficiently. Implemented layer-based RGB feedback, allowing the device to visually indicate the active layer through dynamic color changes. All features were built using C programming within an embedded systems context, emphasizing traceability by linking changes to specific commits. The project demonstrates depth in keyboard firmware development, addressing both usability and maintainability for custom hardware solutions.