CiviSync CMS allows the administrators to manage the Site Key of CiviCRM and API Keys for the users from an easy to use interface within your Content Management System (CMS).
View Composer is a Views-like module, built over a full OOP API strongly interfaces oriented (attempt to be as near as it can be from the SOLID principles).
Basically uses some well-known patterns and take strong design orientation to get rid of stupid problems:
Built over the OOX module ObjectStream interface and API as a backend, which makes configured backends re-usable from bundle to bundle
Built over the same module Formable API as a UX helper
Built over the XoXo module Storage backend for persistence (which can be proxied as entities)
Uses the Null Object pattern at normal runtime in order to avoid any WOSD or end-user ugly crashes
Object streams are backends, while the defined frontend interface is context agnostic and pragmatically render objects given by the stream using a formatter. The formatter is everything agnostic except the object it renders. The concept of bundles ties the lot configuration and handles persistence for the objects, and will allow you to place it anywhere in the site
Uses a somewhat random but working implementation of the decorator pattern in order to decorate the frontend display