After Apple released Xcode 27.1 Beta 1 supporting iPhone Duo app development, the AI programming platform Bitrig promptly announced support for building and testing apps for this device. Bitrig, known for its 'atmospheric programming' feature, can generate native SwiftUI apps and run them. It later introduced a Mac version, integrating Xcode toolchains, simulators, and real-device testing capabilities, while also supporting project export and app distribution. This time, Bitrig has added an interactive 3D simulator to test app performance under different device postures, enabling real-time reading of hinge data and creating interactive scenes adapted to folded states through onHingeChange and ArrangementView. Additionally, the platform supports managing multiple Xcode versions, facilitating developers to simultaneously work on iPhone Duo app development and updates for existing apps.