# `Gemfile` guidelines

When adding a new entry to `Gemfile` or upgrading an existing dependency pay
attention to the following rules.

## No gems fetched from git repositories

We do not allow gems that are fetched from git repositories. All gems have
to be available in the RubyGems index. We want to minimize external build
dependencies and build times.

## License compliance

Refer to [licensing guidelines](licensing.md) for ensuring license compliance.