Buildpack CI's repositories
django-app-multi-buildpack
Sample Django app
django-example
Getting Started with Python on Heroku.
heroku-buildpack-jemalloc
Heroku buildpack that installs the Jemalloc memory allocator
heroku-buildpack-multi
Composable buildpacks
nodejs-example
Getting Started with Node on Heroku
rails-example
Getting Started with Ruby on Heroku