Glances

Glances is a cross-platform system monitor that shows CPU, memory, disk, network, and process statistics in a terminal or in a web dashboard, and it runs on Linux, macOS, and Windows. It can run in a container with access to the host proc filesystem, list running containers through Docker, and export metrics to Prometheus or other backends for longer-term history.

Administrators use it for a quick look at a machine over SSH or to keep one dashboard of every node in a small homelab.

Running it on your own machine keeps the inventory of your systems private, costs nothing per host, and needs only its configuration and export settings backed up.