Actually, I missed out what I really want. When it comes to CI, a Mac Mini is acceptable only because it's the cheapest bit of Mac hardware for the task. Not

Actually, I missed out what I really want. When it comes to CI, a Mac Mini is acceptable only because it's the cheapest bit of Mac hardware for the task. Not because it's the most appropriate. What I'd really like is to be able to run it on VMware on the hardware all my other CI systems are hosted on. Because paying for an overpriced bit of anæmic hardware for it to sit on a shelf in a machine room is a complete waste of money and space, as well as being a complete pain to administer. Better still would be some support for native containers in MacOS, do I can use docker or an equivalent directly, and run every build in a properly clean virtual environment. But I doubt the current Apple care about such things. I'm perfectly happy to pay for real Mac hardware for development, testing and end-user deployment. But for the back-end stuff, it's awful, just plain awful. If I could purchase a MacOS licence specifically for VMware usage, I'd do so immediately.