That's a fair point. The one constant in a startup is change. It may be that in the future we'll have developers only doing front-line support for beta features

That's a fair point. The one constant in a startup is change. It may be that in the future we'll have developers only doing front-line support for beta features of our API. Regarding flow, we don't have all of the developers doing support all of the time. We have one developer doing support at a time and rotate each week. This protects the rest of the team from having their flow I interrupted.