Worked on the SevenWhite/brokencrystals repository to enhance the efficiency and reliability of continuous integration testing. Focused on optimizing test performance by configuring Jest’s maxWorkers setting to one within Docker-based CI environments, which reduced test execution times and improved feedback loops for developers. This targeted adjustment enabled faster iteration toward releases and decreased resource consumption during automated testing. The work centered on performance optimization and CI/CD pipeline stability, leveraging skills in JavaScript, testing frameworks, and containerized environments. No major bugs were addressed during this period, as the primary contribution was improving test suite reliability and accelerating development workflows.