Worked on the apache/mynewt-core repository to enhance the reliability of embedded system logging by introducing a compile-time safety feature for the modlog_printf function. Leveraging C programming and logging framework expertise, implemented a format attribute that enables optional printf-style format checks, allowing developers to catch mismatches between format strings and arguments during compilation rather than at runtime. This approach reduces the risk of logging errors and improves maintainability across the codebase. The update included thorough documentation and comments to guide usage and clarify potential compile-time errors, reflecting a careful and targeted improvement to the project’s logging subsystem within the given timeframe.