Screen share
Open this address on the presenters laptop: vdo.ninja/?push=meetupvideo_us
Second screen
If the presenter uses its computer in Extended Display mode (if the laptop screen is not mirrored to the projector), then open a second Chrome tab and set the second screen’s sharing too.
In this case the link will be a bit different now. Just add a number 2 to the end.
vdo.ninja/?push=meetupvideo_us2
You’re done, both screen is sharing.