Zhi Guo worked on stabilizing Polarion integration for the teemtee/tmt repository, focusing on a critical bug fix that improved cross-system reporting accuracy. By addressing an architecture mapping issue, Zhi ensured that the x86_64 architecture was correctly transformed to x8664 when reporting to Polarion, which resolved recognition errors and enhanced the reliability of planning and compliance metrics. The solution was implemented in Python, leveraging skills in bug fixing, system compatibility, and reporting. Although the work was limited to a single bug fix over one month, it demonstrated careful attention to detail and a targeted approach to resolving integration challenges.