Some 20 years ago, I became interested in Autostereograms. It was already at least several years after their popularity had peaked. Several years after working with them, I was able to port an old freeware Unix executable distributed by a gentlemen named Keith Goldfarb into Apple’s then free Xcode environment to create a graphical user interface for creating Autostereograms using a Mac. I haven’t upgraded it into the more complex Mac developer environment for use with the current Mac App Store, but if you’re comfortable tweaking GateKeeper to allow older or outsider apps to work on your Mac, you’re invited to play with Absird. A shortcut for getting around GateKeeper is available on my Really Quick page. Download from my Google Sites repository below.