They provide a model with a touchscreen for an extra $7. However, you can&#x27;t work with other screens and build and write your own interface because on the Pi, all the display modesetting is handled by the closed-source binary blob running on the undocumented parts of the GPU, and the RPi Foundation won&#x27;t enable DSI connector support in it for anything other than the official screen they sell. It&#x27;s a fairly common hobbyist thing to do on more open boards, it&#x27;s just not possible on the Pi.