We'll still work in Campfire though. We have an infrastructure room where we get all of our notices and systems-level logging piped to, and all of our on-call sysops can get together and deal with stuff immediately when it's necessary.
But it's still async... from the perspective of others. I'm not typically deep into the systems-level maintainability on GitHub, but I can check the transcript during or after the downtime happened and can figure out what happened, how the discussion around it went, and how it was dealt with.