The MacMini is connected to a 8+2 GbE+10GbE hub with VLAN, and the link is VLAN tagged to two sub-links, Internet and Ethernet. The Ethernet VLAN is then untagged by the hub and distributed throughout the internal network.
This is similar to how I do things. I don't have 10GbE at all, so I use 802.3ad link aggregate as the substitute. I have a repurposed used cash register motherboard acting as my router, linked to my main switch over a 2-way aggregated trunk. My Internet comes in as PPPoEoV (PPP over Ethernet over VLAN) from the ISP, then enters my home network using a second VLAN. That is in my wiring closet. My lab and equipment rack is in a separate room with its own rack top switch, linked to the wiring closet with a 8-way link aggregate. In the rack lies my NAS with its 4-way aggregated link, my daily driver Hackintosh and my HPC workstation
The only bit of shame is that Windows don't support simultaneous VLAN (unless you use a vendor tool like Intel's NIC toolbox), so I'm stuck with simple connection to the hub. This is not a problem since I do have a server to handle unsafe traffics, but if I want to use my own laptop as a server, I would not be able to do that.
You may want to explore the Windows PowerShell a little. Windows 10 Pro have those features, but it is tucked away in Windows PowerShell. (My HPC Workstation uses Windows 10 Pro for Workstations, which have a few more features like ReFS.)
AMD EPYC 7551P (C32T64) for a new lab server cost me $450.
How much is the motherboard? And how many RAM (and what type of RAM) do you have on it? This is reminding me of when I bought the pair of Xeon E5-2680 (v1, C2 stepping, Sandy Bridge, 8C/16T each, 16C/32T total) a few years ago for just US$150.