Worked on cross-architecture enhancements for Go, focusing on low-level programming and system architecture. In the itchyny/go repository, added LCDBR instruction support for the s390x architecture within the math package, enabling new assembly-level flag setting and expanding performance optimization opportunities. Later, contributed to the golang/arch repository by stabilizing Plan 9 disassembly output for s390x, correcting operand representation for several key instructions and resolving regressions in the disassembly toolchain. Utilized Assembly and Go to implement architecture-specific features and debugging fixes, demonstrating depth in compiler development and reverse engineering while maintaining clear, focused changes across both feature and bugfix work.