Stefan G. contributed to the qmk/qmk_firmware repository by delivering a configuration update for the Fatotesa keyboard, focusing on both the keymap and USB vendor ID to enhance hardware compatibility and streamline deployment. Using C and JSON, Stefan implemented targeted firmware changes that reduced manual setup steps for end users and improved traceability through a single, well-documented commit. The work demonstrated practical embedded systems and keyboard firmware development skills, addressing the need for reliable device support and maintainable configuration workflows. Over the month, Stefan’s efforts resulted in a focused, business-driven feature that improved end-user experience without introducing new bugs.