bundle package

Package up all your .gem files in vendor/cache
$ bundle package

Running bundle install in an application with packaged gems will use the gems in the package and skip connecting to rubygems.org
$ bundle install --local
You can use this to avoid a dependency on rubygems.org at deploy time, or if you have private gems that are not in a public repository
Edit this document on GitHub if you caught an error or noticed something was missing.