The 'Actions' concept can help you move logic out from Controllers & Models

Classes to help breaking down Rails app into modules

A rails engine that provides a helper which writes (hopefully) correctly formatted applinks meta tags into your layout

Provides helper function to access AppManager API

A gem for tracking record changes and controller actions

A gem for tracking record changes and controller actions

A LDAP adapter for apposs.

Resets (and if available, seeds) your development and test databases.

requires model attribute changes to be approved

The App Scrolls is a magical tool to generate new Rails and modify existing Rails applications (coming) to include your favourite, powerful magic.

Upload private sourcemaps to appsignal

AppStatus provides a URL which is easily consumable by Nagios or other monitoring tools.

Appsules are a different way to organize your Rails app files

appt engine

Rake tasks to manage application semantic version.

Rails 3 engine for managing an app's assets, users, pages, blog, SEO and Social Media Integration

An awesome app.yml gem for Rails. Supports App.settings.nested_setting syntax, all/production/staging/development/test environments, and auto-reloads app.yml changes without requiring an application restart.

apress-documentation

The gem is supposed to contain validators that can be used across multiple projects.

This Validator validates to not contain prohibited words into the value.