Worked on enhancing cross-platform build reliability and portability for the au-ts/lionsos and au-ts/sddf repositories. Upgraded the Microkit dependency in lionsos to version 2.2.0, aligning environment variable handling and hash values across different operating systems. Improved build processes by introducing CXX variables in makefiles, enabling C++ compilation and reducing platform-specific issues. Refactored shell scripts to use /usr/bin/env, eliminating hardcoded shell paths and increasing compatibility. Leveraged skills in C++, Nix, and shell scripting to streamline CI/CD workflows and dependency management, resulting in faster, more predictable releases and improved deployment consistency across multiple systems without introducing new bugs.