To have this running, I have done the following:
> Have the final version intended for deployment on master branch of its respective git repo > bundle install, bundle update, git add . , git commit -am "xyz" > Create heroku remote > git push heroku master > Go to Domain settings of the heroku remote app created, set the domain name to the one I have. > Have the DNS target of the Heroku app, and have your domain name point to it (i.e. CNAME record)
Woooo!