Did not work at all on my triple-monitor setup. All three windows stuck to the right side of the leftmost monitor and only moved up and down. No left and right.

I'm impressed! Love the idea and would be great to read from you the lessons learned or issues you had while developing this. Thanks for sharing.

Well. I expected Pong in the browser, but didn't expect that.

This needs to be prefixed with Show HN:

Updated the title, thanks!

Wow, i´m curious as to how to program such a thing.