Andromeda OS, originally conceived by Microsoft in 2018 for a dual-screen phone, has been revived by developer Gustave Monce, who successfully ported a leaked build to the Surface Duo. The OS was intended to provide a new smartphone experience, featuring a home screen for note-taking and seamless navigation with gestures. Applications can open on one display and be dragged to another for multitasking. Monce has packaged the OS into a user-friendly FFU file for installation, although it is still unfinished and may have bugs. Installing Andromeda OS will erase existing Android data, but a dual-boot option is available with data loss risks. Monce has previously ported Windows 10 and 11 to the Surface Duo, highlighting Microsoft's dual-screen ambitions.