Worked on the Firecracker repository to improve code maintainability by consolidating architecture-specific GDB stub imports into a single cfg_select! block. This refactor, implemented in Rust, reduced code duplication and streamlined architecture-specific code paths without introducing any functional changes. The approach leveraged Rust macros to simplify future updates and made the codebase more accessible for code reviews. Focused on system programming and GDB integration, the work targeted long-term maintainability rather than immediate feature expansion or bug fixes. All changes were delivered with clear commit documentation and required no runtime modifications, reflecting a careful and incremental approach to code modernization.