CD PROJEKT RED's Paweł Sasko and Apple's Garrett Austin walk through the full process of porting Cyberpunk 2077: Ultimate Edition to Mac. The talk covers using Apple's Game Porting Toolkit for pre-port evaluation, building a native Metal rendering pipeline with Metal Shader Converter, implementing MetalFX Upscaling with Dynamic Resolution Scaling for performance headroom, and creating a 'For this Mac' device-based preset system. Platform-native integrations include NSNotification-based window/display management, Game Mode, Game Controller framework support, automatic HDR calibration via Apple's EDR APIs (maximumExtendedDynamicRangeColorComponentValue), head-tracked spatial audio for AirPods via AVAudioEngine, and iCloud Drive save sync. The game shipped as Mac Game of the Year in Apple's 2025 App Store Awards.