January 2026 monthly summary for OpenXiangShan/GEM5: Delivered NEMU XS-GEM5 Usage Documentation to streamline setup, environment configuration, and workload generation. No major bugs fixed this month; focus was on documentation and process improvements. Impact: accelerates onboarding, reduces setup time, and improves reproducibility for NEMU-based GEM5 workflows. Technologies/skills demonstrated: technical writing, GEM5/NEMU workflow familiarity, documentation tooling, and version control.