ruby plugin is useful for Ruby-based parts.
This plugin uses the common plugin keywords as well as those for “sources”. For more information, see Snapcraft parts metadata.
Additionally, this plugin uses the following plugin-specific keywords:
A list of gems to install.
Use bundler to install gems from a Gemfile (defaults to ‘false’).
The version of ruby you want this snap to run.
For examples, search GitHub for projects already using the plugin.