bundle exec unicorn -p 3000 -E production -c config/unicorn.conf.rb
However when I go to the site, I saw this in the console: DEBUG: For more advanced debugging, install the Ember Inspector from https://chrome.google.com/webstore/detail/ember-inspector/bmdblncegkenkacieihfhpjfppoconhi inside vendor.js
The Ember Inspector is a browser addon to help with debugging. It is not part of Discourse and it is not something you need to run Discourse - though it can be useful if debugging is what you want to do