Not a question, but I just want to thank you for "inventing" review apps back in the day, the idea of having a full version of your app running for a branch was pretty game changing for the companies I worked at.
Awesome! IMHO it was more of a refinement of the concept of deploying each commit; doing it at a PR and push level worked better. Open-sourcing it, and getting Heroku to bake it in was the icing on the cake for us!