Using Flappie’s “unique and proprietary” dataset, the door distinguishes between Tom ... To do this, Flappie collected video of a lot of cats and prey in a variety of lighting conditions.

"People underestimate how smart cats are," commented one viewer of the video that has been seen over 20 million times.

[Dino] continues his to satisfy his weekly hacking goal by building a cat door for his pets ... keeps the flap from swinging in the breeze using parts from a magnetic cabinet latch.