Wooo! FurtherFrom now shows recently calculated comparisons and the fly.io region where they originated. Phoenix pub/sub is a dream to use.

The homepage liveview subscribes to the topic to update the recent comparisons for all connected users. Each app also has a subscribing process that persists incoming recent comparisons if they didn’t originate from the app’s region.

It’s a bespoke approach that would be better done via LiteFS but I’m not sure how to get that working yet.