If you want to turn HDMI video into art, then you might be interested in my Pixel Wrangler project: https://github.com/osresearch/pixel-wrangler
@th Curious if you think the Pixel Wrangler could drive a Mac Portable active matrix display? I have a broken Mac Portable that might make a good donor to put a RaspPi to run MiniVMac on.
@paulrickards I’m also prototyping a Pi optimised version of the pixel wrangler than can use the DPI port instead of the HDMI and will have more IO available for weird panels.