The new AEM 6.3 brings with it the WCM Core Components Library, a set of reusable and production ready components. Learn how to take advantage of them.
In the last couple of years developing components for AEM has become more accesible. We got HTL (formerly Sightly) and Sling models, and TouchUI became more mature and stable. Still, when it was time to get your hands dirty it was difficult to find good examples of how things should be implemented. Geometrixx (and their spin-offs like outdoors or media) had been for very long time the standard reference of how components should be implemented.
Unfortunately, as you might know, Geometrixx in many cases was more an example of how you should NOT do things rather than how to do them. Luckily for us, AEM 6.3 brings in the Adobe WCM Core Components and a new implementation of the We.Retail demo site, which will serve as an actual showcase of good component development practices. As a side note, Geometrixx has been completely removed on AEM 6.3.