During July 2025, Darby Johnston focused on stabilizing macOS builds for the nextcloud/craft-blueprints-kde repository by addressing a crash related to OpenTimelineIO. He reverted the build process to use a built-in static version of OpenTimelineIO specifically on macOS, employing conditional logic within the build system configuration to ensure this change did not affect other platforms or core functionality. Working primarily with Python, Darby updated configuration scripts to enable this targeted dependency management. His work improved build reliability and reduced crash risk on macOS, demonstrating a careful, platform-aware approach to bug fixing and build system maintenance within a collaborative codebase.