On October 25, I was on-site in Detroit at KubeCon and CloudNativeCon pre-event Prometheus Day North America. It was on-site at the Huntington Place Convention Center in room 360, which is on the river with views across the water into Canada (just a bit of geography, as many attendees I spoke with were not aware that Detroit was so close to the northern US border).
The full schedule for Open Observability Day is available online, but I wanted to share an overview impression of what it was like to be there.