ActiveAdmin

ActiveAdmin has been the default answer to "we need an admin" in Rails for over a
decade, and it is still maintained.

What you get

• A DSL for registering resources
• Filters, scopes, batch actions and CSV export
• Custom pages and dashboard sections
• Authorization adapters for CanCan and Pundit

Mounting it

# Gemfile
gem "activeadmin"

rails generate active_admin:install

The trade-off

The DSL is powerful and opinionated. Deviating from it costs more than it does in
Administrate, where you are editing ordinary generated views.