Look at lib/this_feature/adapters/base.rb to see the methods that your class should implement.
Make sure your class inherits from ThisFeature::Adapters::Base - this is a requirement.
You may define a custom initialize method - this isn't used by this_feature internals because we require an already-constructed instance to be passed into ThisFeature.configure.
For an example, look at one of the existing adapters: lib/this_feature/adapters/
If you want to include your adapter in our README, just open up a PR.