I feel like I'm late, but
I'm running a single node microk8s cluster on a dual xeon (20 cores each for a total of 40 cores) server with (only) 64 gb ram. Wish I could do more but this is on a microatx dual slot motherboard that maxes at 64gb.
I have this attached to a 72tb das.
I currently live in an RV so I had to downsize my bare metal cluster to 1. It's sufficient for now π