[alternize]

apparently, the video is re-rendered on a regular basis containing the flock of mouse pointers:

  We composite the music video with the latest pointers every 30 minutes orso.
  For that we use Node.js & FFMPEG

[daigoba66]

There is one shot that has a small yellow disc. I guess after many iterations people with their mouse pointers have drawn on it a smiley face. That is pretty neat.

[egypturnash]

If you watch it interactively, it explicitly asks you to draw a smiley at that point.

[susi22]

So if it's just a video. How does the "avoid each other" work?

[asciimo]

Technically, the goal is to "avoid previously rendered cursors." But the effect is the same, ultimately.