The Virtual OS Museum is a fantastic project that lets you run Mac OS, A/UX, NeXTSTEP, more

Someone built a time machine for operating systems. The Virtual OS Museum is a browser-based project that lets you boot up and interact with decades of Apple and NeXT operating systems, no vintage hardware required.

We're talking Mac OS from the early days, A/UX (Apple's Unix variant), NeXTSTEP, and more. It's all virtualized and accessible through your web browser, which means you can poke around these historical interfaces without hunting down old machines or dealing with emulator setup.

For AI folks, this is more than nostalgia. Understanding how interfaces evolved helps explain why we interact with computers the way we do today. The design decisions made in NeXTSTEP, for instance, directly influenced macOS, which influences how millions of people (including AI developers) work right now.

It's also a reminder that the tools we build today will be museum pieces tomorrow. The AI interfaces we're designing now, the command structures we're creating, the interaction patterns we're establishing, they're all going to look quaint eventually.

The project covers over 40 years of operating system history. That's a lot of UI evolution compressed into one accessible archive, and it's worth exploring if you care about how humans and computers communicate.