The 2020 Mac Mini has a very small logic board, most likely due to the M1 SoC that integrates the functions of several discrete components.
However, where are the DIMM slots? Some are suggesting that RAM is soldered to the main board; others are suggesting it's in the SoC (which seems unlikely).
It also appears that the maximum memory is limited to 16GB. There's no word on the speed and type of memory.
This looks like an iPad on the inside and a Mac Mini on the outside!
P.S. It's awesome that M1 not only includes Thunderbolt 3, but also a Neural Engine that can run TensorFlow at accelerated speeds.