During March 2025, Michael Buesch contributed to the rust-lang/libc repository by harmonizing seccomp constants across Android and Linux platforms. He focused on aligning seccomp flags and return actions, ensuring consistent policy enforcement and improving portability for system-level code. Working primarily in Rust and C, Michael added new constants from seccomp.h and updated the codebase to support cross-platform security policy coverage. His work leveraged low-level development and operating system API expertise, resulting in more maintainable and robust seccomp-related functionality. The depth of his contribution addressed nuanced differences between platforms, enhancing the reliability of system programming interfaces in libc.