During October 2025, Ching Chen expanded the eco-gotests repository by implementing S390x architecture support, enabling the module to function reliably on IBM zSystems. This work involved introducing new image and kernel definitions, along with constants for s390x DTK images and kernels, ensuring accurate resource identification and deployment on s390x platforms. Leveraging Go and cross-platform development skills, Ching laid the groundwork for future architecture-specific testing and validation within the system. The update enhanced multi-architecture readiness in eco-gotests, reflecting a focused and technically sound approach to system architecture and cross-platform compatibility, though the scope was limited to a single feature.