Confused about host system support for MacOS

[redfox05]

Operating system

macOS 15.4.1

Description

Im running macOS 15.4.1 as the host machine, and need to run MacOS 13 within Docker on that host machine.
Essentially I need to run an old version of the MacOS for my needs.

However, the compatibility table in your README for KVM shows no support for Mac.

Yet further down it says please run this on Apple hardware to make sure you abide by the Apple user agreement.

Seems to be contradicting itself, so I'm guessing im reading the table wrong as surely there must be support to run on Mac.

Docker compose

docker run -it --rm --name macos -p 8006:8006 --device=/dev/kvm --device=/dev/net/tun --cap-add NET_ADMIN -v "${PWD:-.}/macos:/storage" --stop-timeout 120 dockurr/macos

Docker log

WARNING: The requested image's platform (linux/amd64) does not match the detected host platform (linux/arm64/v8) and no specific platform was requested
docker: Error response from daemon: error gathering device information while adding custom device "/dev/kvm": no such file or directory

Screenshots (optional)

No response

[cowenprice]

One could install Windows or Linux on Apple hardware, and thus not breach the Apple User Agreement.
The Docker image is expecting amd64, which would mean an Intel-based Mac host, rather than an Apple Silicon Mac (arm64).
I don't know that much, but I assume Docker images would need to match the architecture of their hosts, which in your case it does not. You would need to use an Intel-based Mac to run the image.

[redfox05]

Thanks @cowenprice for the reply, but I think you're confused about my reference to the apple user agreement. You mention its to install Windows or Linux on the Apple Hardware, but I (and I imagine the readme) are are discussing the Apple agreement of what you should install the mac image on.

But your last statement might explain the issue. Maybe the only way to keep the agreement is to install on Intel based Macs. The readme support table should in this case be updated to reflect that, if it is the case. I've read success elsewhere of the mac images being installed in VMs on Mac Silicone, but those instances did not explain fully how they did it.

[kroese]

This container can only be used on Linux, not on macOS. For running macOS on macOS, there are much better solutions available.