A rogue integration took down my #homeassistant server yesterday (Combustion Inc, a wireless kitchen thermometer. It was spamming the log so hard it caused HA’s main Python process to OOM. It was generating thousands of log lines per second.)
The web interface was just barely usable for a few minutes after boot; then became totally unusable before it finally crashed. This is a problem for a headless server. BUT I had JUST THE DAY BEFORE taken delivery of two NanoKVMs. Quickly hooked one up and was able to use the local console it gave me to fix the issue without needing to lug a monitor to the HA box / move the box up to my office.
IP KVM FTW!