nondisposable by rameerez

Let devise support multiple emails (authenticatable, confirmable and validatable). Maintained by allenwq on GitHub, where it has earned 79 stars from the community.

A Rails Engine which provides a customizable status page on your application. Maintained by envylabs on GitHub, where it has earned 49 stars from the community.

Fast & simple Rails ActiveRecord model tagging using PostgreSQL's Array datatype. Maintained by hopsoft on GitHub, where it has earned 53 stars from the community.