Browsers and devices
Any modern browser; a phone layout you can install.
BMS runs in any up-to-date browser, such as Chrome, Edge, Safari or Firefox, on Windows or Mac. There is nothing to install on a computer.
On a phone, bmsp.app opens a phone layout, which you can add to your home screen like an app; see Install BMS on your phone. To use the computer screens on a phone, choose Open the full site from the phone menu.