My comment is on the Companion app specifically.
Program looks interesting and useful potentially, but with no settings it is very frustrating and excruciatingly tedious to use. It forces a screen resolution which on a large high-res screen is very inconvenient. The program is also not intuitive and hard to understand. The music is also not optional, but constantly playing, without a sound slider.
A windowed mode with resolution options, sound options, and some instructions on how to use it would make it into quite a useful helper.