During June 2025, Duy Hoang focused on stabilizing visual test automation for the reapit/elements repository, addressing reliability issues in the CI pipeline. He improved the Playwright end-to-end test suite by updating the setup and explicitly specifying the JSON type in the build manifest import, which reduced test flakiness. Duy also enhanced the navigation logic to skip tests when a story component could not be found, minimizing false failures during automated runs. By updating the beta testing URL to match current environments, he ensured more accurate staging flows. His work leveraged JavaScript, TypeScript, and CI/CD practices to deliver a robust testing solution.