Networking

A small Proxmox cluster, a managed switch or two, some IP cameras, and Home Assistant eventually stop being a pile of gadgets and start being infrastructure. Here’s how I built observability, a live topology graph, and an AI-assisted ops layer for mine — without letting anything have unsupervised write access to the network.

How a Raspberry Pi 5, a cheap u-blox GPS module, and chrony turned into a home stratum-1 time server — the wiring mistakes, the serial-port gotcha nobody documents, and the PPS upgrade that took accuracy from ±50ms to ±350ns.