3D graphics and a board-agnostic Hardware I&#x2F;O library that just talks to mainline kernel interfaces was the hard part.<p>Adafruit did a video hinting at what this could be used for: <a href="https:&#x2F;&#x2F;learn.adafruit.com&#x2F;processing-on-the-raspberry-pi-and-pitft&#x2F;overview" rel="nofollow">https:&#x2F;&#x2F;learn.adafruit.com&#x2F;processing-on-the-raspberry-pi-an...</a><p>Your comments and suggestions are welcome.