Worked on the VEXU_GHOST repository to deliver a key firmware feature for the ghost sensor host, focusing on improving REPL and serial communication handling. Used Python and embedded systems expertise to implement boot-time REPL disable logic via boot.py, then refactored the approach by removing boot.py to streamline startup and simplify the firmware’s communication flow. Organized the codebase by introducing a modular sensor host directory structure, enhancing maintainability and supporting future development. The work concentrated on feature delivery and code quality, resulting in more reliable firmware startup, clearer communication pathways, and a codebase that enables faster deployments and easier updates.