Zoom playback audio into live event meeting

[James Dow]

I’m fairly new to live-streaming of events. I’m needing to bring in some remote presenters to a an event. I have 2 laptops with DIs feeding the house mix from a Zoom meeting. The output of the board is sent to a camera which is connected to a Blackmagic ATEM switcher, via HDMI. The ATEM is feeding a Vimeo livestream. How do I get the audio board output into Zoom, so the remote presenters can hear the meeting with no feedback loops?