Making the software control external hardware from every device is possible thanks to WebMIDI! My original plans for use serial port still works but only really has access when used on a desktop system... However all these messages can also be sent over WebMIDI which just so happens to work across *all* devices including mobiles and tablets! The MIDI signal can be sent over a standard 2.5mm stereo jack and so with the right adapter (USB-C to MIDI2) you can use the Photosynth to control other musical equipment as well as using the signals to controls other hardware such as pointing devices, letter selectors, volume dials, smart home lights and assistants such as Siri and Alexa.