4 ms·

I was sitting here thinking the same thing. You could probably achieve this with an rpi or two. The article is light on technical details unless I totally misse

• dylan604 4y ago
  The video from the tweet clearly shows the rack of gear doing it. It flashes them quickly and I didn't bother to try to pause the video to look. They look like boxes from BMD, but there are other manufactures that do this screen splitting for large room displays as well. It's pretty common gear in the AV world. The point isn't how they did it, but that they did do it. Only on HN is the actual point lost.