In this guide, I will walk you through the process of adding the html5 scaffold to the vagrant box that the sync engine ships with. This will allow you to try out the app without using our API endpoints.
WARNING: User authentication does not ship with the open source version. Anybody who can see your endpoint can access the API and any emails you have synced to it.
If you're not making changes to the scaffold, why not use the latest and greatest online? Once you've got your API endpoint set up, as per the README head on over to http://inboxapp.github.io/inbox-scaffold-html5/set-app-id.html and use localhost
as your app. It'll connect to your local copy of Inbox.