I know many of you have been anxiously waiting for ESXi to be fully functional on the latest Apple Mac Mini (2018), unfortunately I do not have any news to share with you on that front. Without help from Apple, we are still challenged with Apple's new T2 chip, which prevents us from accessing the underlying NVMe device.
UPDATE (04/27/20) - Marvell (formally Aquantia) has just released an official Native ESXi Driver for their AQtion based network adaptors which you can find here and for the complete list of supported devices using this driver, please refer to the VMware HCL here.
Having said that, I do have some exciting news regarding the built-in 10Gigabit Ethernet adaptor on the 2018 Mac Mini. The 10GbE adaptor uses an Aquantia chipset, this is also the same chipset used in Apple's high end iMac Pro which was released earlier in the year. Over the past few weeks, I have been working with the Aquantia team and they have successfully ported over their open source Atlantic driver to a VMKlinux driver for ESXi, which they have published here. Although the local NVMe device can not be used to run any VMs, with the network fully enabled, customers could take advantage of this model and connect to IP-based storage to start leveraging the new Mac Mini platform.
The easiest way to incorporate the driver into the latest ESXi release is to use Image Builder within the vSphere H5 Client UI, below are the step-by-step instructions.