This gem just includes Typed.js as an asset in the Rails 3.1 (or newer) asset pipeline.
The current version in the gem is Typed.js 2.0.9
Add the gem to the Gemfile
gem "typedjs-rails", "~> 2.0.9"
In your JavaScript manifest (e.g. application.js)
//= require typed
Typed.js, which makes up the majority of this gem, has its own licensing.
The gem itself is released under the MIT license