I set up real-time monitoring on 14 production Linux servers, a mix of VPS, bare metal, and Docker hosts across DigitalOcean, OVH, Hetzner, and a couple of on-prem boxes. One server hosts 64 domains. Another runs a single Laravel app. They range from 1 vCPU to 8 vCPU, Ubuntu, Debian, CentOS 7, and AlmaLinux.

I wanted to answer a simple question:...