@sethvargo sounds like a user experience problem then.  As a Bundler user the typical pattern for adding additional drivers is this.  (As you know)

```
git clone
emacs Gemfile # add gems to support the drivers you want
bundle install
bundle exec kitchen test
```
I wish it was as simple as a clone and running with the drivers you want without having to get your hands dirty.

> Not using Bundler helps, but isn't that against the current Ruby standards? 

I can see your point, but I'd still like to reduce this pain and I was hoping by adding the drivers to the cookbooks slowly could be a starting point.