Description:

Wrap any external service with an Engine.

Example:

Let's say your Rails application wants to send email using Postmark API.

Generate an engine to contain all code related to this interface:
    rails generate uniformity:engine Postmark

This will create:
    engines/<your_application>-postmark/app
    engines/<your_application>-postmark/bin
    engines/<your_application>-postmark/config
    engines/<your_application>-postmark/lib
    engines/<your_application>-postmark/Gemfile
    engines/<your_application>-postmark/<your_application>-postmark.gemspec
    engines/<your_application>-postmark/Rakefile
    engines/<your_application>-postmark/README.md