John Calhoun, on Bluesky (and also a new blog):

I re-made Glider some years back for MacOS/iOS. It broke at some point (perhaps an Apple change for Retina displays?) so I pulled it from the App Store.

(Claude looked at the code — found some minor coordinate issues. Thanks!) Glider Classic for MacOS is back on.

11 years between version 1.0.4 and yesterday’s 1.1 looks like a long time. But when you consider that Calhoun shipped the original Glider back in 1988, that puts things in perspective. If you’ve never used Glider, it remains an all-time great procrastination utility. There aren’t many Mac apps still in development from that era.

(Calhoun, you will recall, in addition to making a slew of early Mac games, went on to a long career as an engineer at Apple, where, amongst other things, he worked on Preview for many years. He now makes cool personal projects like SystemSix and this excellent model of the Pan Am Orion that was in some old movie.)