Worked on enhancing SIMD macro functionality in the rust-lang/stdarch and ferrocene/ferrocene repositories, focusing on improving memory access flexibility and safety for Rust-based systems programming. Developed features that enabled unaligned memory access and relaxed alignment requirements for interleaving operations, specifically updating macros to support safer and more consistent data handling. Leveraged Rust and low-level programming techniques to refactor macro interfaces, reducing the risk of out-of-bounds errors and improving type safety. These changes increased maintainability and usability of SIMD macros, supporting broader downstream adoption and more robust performance optimization for data-processing workloads across both repositories during the development period.