Worked on modernizing the test infrastructure for the denoland/chromium_build repository by delivering a Fuchsia Test Environment Upgrade. This involved upgrading test dependencies to leverage Fuchsia SDK components and replacing deprecated terminal images with the workbench image, streamlining the testing process. The approach focused on build system configuration and Fuchsia development, utilizing CML for environment definitions. These changes reduced setup time and improved test reliability, aligning the repository with current Fuchsia tooling standards. No major bugs were addressed during this period, as the primary emphasis was on infrastructure improvements to support faster development cycles and minimize flaky test outcomes.