Thanks, solid points. AC — you are right, but the heat is only in the closet, not bedroom. Closet door is usually closed, bedroom itself is fine. AC for the closet would be overkill, I just vented it. Downclock — already did, BIOS limit 35W and -50mV undervolt, plus ML only 02:00-06:00. That dropped 8-10C and it’s still enough for Immich. Monitoring — good call. Right now I have simple cron + healthchecks.io ping that emails me if backup is older than 2 days. LGM (Loki, Grafana, Mimir) is great but feels heavy for one Optiplex in a closet. I’m looking at Uptime Kuma with email to wife + me if backup job fails — simple dashboard she can actually open. “Document everything in case you die” — 100% agree, this is my current task. Writing a 1-page README for wife: where files are, how to get plain JPGs from Immich without Docker, B2 credentials in Bitwarden. That’s more important than any stack. Appreciate the checklist.