Out of all of my home servers, the M4 Mac Mini is probably my favorite and runs many workloads even though it sits on a 96 core Epyc server now (needed the massive amounts of PCIe for something else). I was able to upgrade my SSD with a 3rd party one, not that sticking an NVMe drive on one of the thunderbolt ports would have been a bad pick. About the only place it didn't make sense is if you wanted a ton of RAM.