I know you can set it up to make it seem to work, but from what I’ve seen people say over and over, it will eventually end up asking you some question through a dialog box. And you will have no idea that’s going on other than all work stops. And the machine seems locked up or something until you connect a display and find out it wants you to click OK.
It SHOULD be totally possible. But it fights you.
The MacMini stays on my desk for that reason.
It’s too bad I cannot trust it to put it in my rack.