My home lab is a bit scattered so I had to turn some parts into a collage.
Top: "Main Cluster" - 5-node ProxMox setup running nearly all house services. Has capacity for experiments but each node can run everything by itself if I need to go into low-power mode. The Synology NAS next to these nodes provides NFS shared storage for the nodes and is isolated from the house data.
Middle: "Sandbox" - 5-node ProxMox cluster running a number of VMs to support Kubernetes experiments. It's a work in progress, 5 litres of tiny-mini-micro power. Each node has a short link to the dedicated switch. Video goes through an HDMI switch for easy node selection. Power goes through a Kasa 6-in-1 power switch with energy monitoring so that I can cycle nodes remotely and watch/log power usage.
Bottom: "OG NAS" - First built in 2014, this system is an absolute trooper. 4x 6TB HDDs and dual NICs, this is the primary copy of house data.
"New NAS" - Also a work in progress, this is aiming to replace the aging OG-NAS. 5x 6TB HDDs, 64GB RAM, i7-4590K and a pair of 16TB drives for snapshots and additional copies. This is a ProxMox server running TrueNAS in a VM (HBA for drives passed through). It hosts NFS and SMB shares for the house data and other various projects that haven't been migrated off the OG-NAS.
Total Idle power draw of everything pictured is about 300W.