Simple is better. This app is focused on having a simple mobile scene switcher in OBS. In OBS v28 and later it should work out of the box. For earlier versions, it requires the obs-websocket plugin to be installed. You can download it here:
https://obsproject.com/forum/resources/obs-websocket-remote-control-obs-studio-from-websockets.466/

- Hide scenes that you don't want to accidentally switch to