[matwood]

I would also bet the already have full macOS running on ARM internally. I think we are seeing the proof of this in the new libraries being released to support the iOS like apps (News and Stocks) on the Mojave.

[mavhc]

Why do you think they rewrote from scratch all the applications they acquired from 3rd parties like Final Cut, Logic?

[burnte]

You don't need to rewrite them from scratch. They've had those companies for years and it's a good bet that they've done work to make it more portable. It was already available back when Macs were using PPC, so the code is obviously somewhat portable.

[mavhc]

Perhaps they didn't need to, but they did anyway

[pducks32]

When they transitioned to Intel they even said they had internal Macs running on Intel for years waiting for this day.

[gsnedders]

AFAIK, they essentially "just" maintained the x86 port of NeXTSTEP throughout the entire migration from NeXTSTEP to Mac OS X.

I wouldn't be amazed if they supported big-endian PPC still for the sake of maintaining portability, though I feel that's less likely than little-endian ARM.

[stiGGG]

Did somebody here get one of these back in the days? https://forums.macrumors.com/threads/apple-development-trans...