During January 2025, Mixerator expanded runtime compatibility in the ziglang/zig repository by enabling execution of 32-bit Windows executables on 64-bit Zig builds. This work involved implementing a backward-compatible ABI and architecture upgrade, specifically introducing the -fwine flag to support running 32-bit .exe files on 64-bit architectures. Focusing on compiler design and system programming, Mixerator’s approach reduced adoption friction for users relying on legacy Windows binaries, while maintaining stability for existing 64-bit applications. The feature was developed entirely in Zig, demonstrating a solid understanding of cross-platform development and low-level system integration, with a clear focus on practical compatibility improvements.