Ah, WebObjects. This set of software frameworks was used to build enterprise-level websites, the iTunes Store being a notable example. 4.5 was the first version to "only" cost $699 instead of the $50,000 that NeXT used to charge. And the last version to use Objective-C... it all got rewritten in Java for the 5.0 release, beginning a slow decline until it was officially discontinued in 2016.
