During February 2026, Liubo refactored device probing and error handling logic in the levizh/rt-thread repository, focusing on compliance with MISRA-C standards. Working primarily in C, Liubo enhanced the safety and maintainability of embedded systems code by restructuring initialization paths and strengthening error propagation mechanisms. This work reduced the risk of undefined behavior during device driver initialization and improved code readability across fal_rtt components. By aligning the codebase with project coding standards, Liubo prepared the repository for future static analysis and testing, demonstrating depth in device driver development and embedded systems engineering while addressing a critical bug in the process.