apple/container — reverse-engineered prompt

Build me a Swift command line tool for Apple silicon Macs that lets people create and run Linux containers as lightweight virtual machines.

I want it to feel like a simple container tool for macOS 26. A user should be able to install it, start the background system service, pull a standard OCI container image from a registry, run it on their Mac, build their own image, and push that image back to a normal registry. It should use regular container images so people aren’t locked into a custom format.

Please make the commands clear and friendly, with helpful error messages when the Mac or macOS version isn’t supported. Include basic docs that explain how to install, start, stop, upgrade, downgrade, uninstall, and try a simple web server example. Add tests where they make sense, and look up current Apple virtualization and Swift package docs online if you need to.