Worked on the netdata/libbpf repository to enhance reliability by standardizing error handling across the library’s API calls. Focused on C programming and system-level API development, the work involved wrapping direct error codes with the libbpf_err function, which improved consistency and debuggability for downstream users. This approach streamlined error reporting throughout the core API surface, making it easier for developers to diagnose and maintain libbpf-based systems. The changes were carefully tracked for future auditing and incremental improvements, reflecting a methodical approach to error handling and system programming while addressing a critical bug that impacted the maintainability of the codebase.