The macOS syscall interface policy is the same as Windows. In practice it has had less churn then then NTDLL which may make it feel more practical, but it is on

The macOS syscall interface policy is the same as Windows. In practice it has had less churn then then NTDLL which may make it feel more practical, but it is only more "allowed" in the sense that it is technically feasible, not that it is guaranteed to be stable or supported.