Deploying to Heroku
You can deploy an instance of Koop to your Heroku account right away using this button:
If you like doing things manually, feel free to check out out the information in the Heroku Dev Center.
Using PostGIS on Heroku
Heroku has beta support for PostGIS. Read more about it here.
koop-pgcache to find out more about configuring PostGIS as a persistent cache for Koop.