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Is this the one with the loaded question/insult from an audience member about deprecating a framework? Cause I agree that Apple has been too developer-hostile on Mac OS for a very long time, even though I'm mostly on the user side (but have also done a little Mac dev). They unnecessarily break third-party software too often, to the point where many devs have given up on proper Mac support and just thrown things into…
That one was so funny. He may have been right, but Apple’s chess moves speak for themselves. They’ve built one of the most valuable companies in history.
Also, iPhone OS was actually a great dev platform unlike Mac OS, which facilitated a huge app ecosystem at least initially (nowadays apps are less of a thing). People have their complaints, but it's a paradise compared to creating Mac apps because there aren't too many wrong ways to do something, the OS handles a lot more for you, and initially it was a gold rush because of how readily you could profit from making apps. It became standard for everything to have an iPhone app.
Macs, on the other hand, always suffered from a lack of third-party software. Eventually it began to matter less cause of web stuff, but it's still an issue.