Push to Heroku without using Git.
$ heroku plugins:install https://github.com/ddollar/heroku-push
$ heroku push
$ heroku push ~/myapp
$ heroku push https://github.com/ddollar/anvil.git
use a custom buildpack (see https://buildpacks.heroku.com)
$ heroku push -b heroku/nodejs
$ heroku push -b ~/mybuildpack