Developer Mayuki Sawatari has created ReProgman, a modern homage to the Windows 3.1 Program Manager, which operates on both Windows 11 and macOS. The application mimics the early '90s interface, scanning the Start menu on Windows or the Applications folder on Mac to organize programs into groups without altering actual shortcuts. Users can drag and drop icons, utilize classic window arrangements, and experience a recreated exit dialog box. The project was initially developed in just an hour, with a detailed specification document available in its git repository. ReProgman is released under the MIT license and is available as a standalone binary, though Mac users need to adjust permissions to run it. Currently, it supports only Windows 11 on x64 and Arm architectures and macOS on Apple Silicon, excluding Windows 10 and Intel Macs.