Worked on the nrfconnect/sdk-zephyr repository, focusing on improving macro safety and code robustness within embedded systems. Addressed a specific issue in C programming by refining the INSTR_FETCHABLE macro definition to include parentheses, which prevents incorrect logical expansions during macro evaluation. This targeted bug fix enhanced maintainability and reduced the risk of subtle errors in future code changes. The approach demonstrated careful attention to macro programming practices, ensuring that logical operators behave as intended in complex embedded environments. Throughout the month, the work centered on code quality improvements rather than feature development, emphasizing reliability and long-term maintainability in C-based projects.