Is there any way to communicate with the ATEM mini via HTTP? In particular I want to query (and maybe control) the mini via a web interface using Javascript. HTTP is the most natural protocol for Javascript, but raw IP might also be possible.
Background: We are using OBS with 3 PTZOptics cameras. We use the OBS custom browser dock feature to embed camera control panels into the OBS interface:

I would like a "tally" indicator on the camera control panel so it is clear to the operator which camera is currently "live". (We are using the physical buttons on the ATEM mini for switching). E.g. light up the title bar of a camera's dock in red when it is live - a caution signal to the operator that any camera movement will be seen in the live stream.
To do that, I need to get tally information from the ATEM mini into a browser running Javascript (each custom dock panel in OBS is a web browser page).
Is there any conceivable way to do this? The BM Switchers SDK is all C++ and hides the on-network protocol, not accessible from Javascript in any way.