Right now buttons only work with source code hosted on GitHub (although the button can be added anywhere). We want to extend that to other source code hosting services, though.
The challenge is that we have to resolve the [app.json][1] file to generate the deploy UI.
The challenge is that we have to resolve the [app.json][1] file to generate the deploy UI.
[1]: https://blog.heroku.com/archives/2014/5/22/introducing_the_a...