[schneidmaster]

I built a production app recently, Rails 5 (beta -- surprisingly stable) + Heroku + Passenger, separate React + react-router frontend. It's been fantastic so far -- has handled a decently sized production load, including some pretty heavy ActionCable usage, with no problems. There's a few tricks to getting it working on Heroku though; I've been meaning to write a blog post about it but haven't found the time.