During March 2025, Brian Geffon enhanced the denoland/chromium_build repository by introducing a build-time warning for the IS_DESKTOP_ANDROID flag within the GN build system. His work focused on build system configuration, aiming to improve maintainability and guide developers toward runtime detection rather than relying on static build flags. By restricting IS_DESKTOP_ANDROID usage to cases with notable binary size impact, Brian reduced the risk of misuse and streamlined support. The update provided clear documentation and directed questions to the chromium-build mailing list, reflecting a thoughtful approach to developer experience and long-term project hygiene, though no major bugs were addressed this month.