Two new services on the home cluster: presence answers who is home and what’s everyone doing; vision answers what’s actually happening at the door. Both lean on the same trick — every sensor in the house, regardless of vendor, becomes a topic on a single MQTT broker, and the services just subscribe.

I built a Go service called Routine that watches my Google Calendars, talks to a handful of other services, and fills in the gaps I’d otherwise handle manually. It syncs every 15 minutes. Here’s what it does.