Worked on the 0xPolygonHermez/zisk repository, focusing on enhancing quality assurance and internal testing processes. The primary effort involved consolidating and refining test-related commits to improve test reliability and maintainability, including the introduction of placeholder tests and formatting adjustments. Using Rust and established software development practices, the developer emphasized code consistency and reduced the likelihood of flaky tests by standardizing test structures. No new user-facing features were released during this period, as the work centered on backend stability and groundwork for future automated testing improvements, ultimately supporting a more robust and maintainable codebase for ongoing development efforts.