 <p>I've forked that project and made a <a href="https://github.com/jonmountjoy/PerfectTemplate#deploy-to-heroku" rel="nofollow">Heroku Button deployable version here</a>. In order to get that working, I checked out the sample app, and found that the build dumped the binary in <code>.build/release/PerfectTemplate</code>, so your Procfile should be:</p> <p><code> web: .build/release/PerfectTemplate --port $PORT </code></p> <p>Note, you also want to set the <code>$PORT</code>. If you've deployed but failed prior to this, you'll also want to make sure you scale up the web dyno: <code>heroku ps:scale web=1</code>.</p>