Sam Johnson enhanced fuzz testing for the xz project within the google/oss-fuzz repository by enabling debug assertions during the build process and expanding architecture support to include both x86_64 and i386. Using Shell scripting and leveraging skills in build systems and system configuration, Sam broadened fuzzing engine compatibility to improve edge-case and vulnerability detection across multiple platforms. The work focused on strengthening early vulnerability discovery by increasing the diversity of build configurations tested. Over the course of the month, Sam delivered a single, well-scoped feature that deepened the security testing baseline for OSS-Fuzz without addressing bug fixes.