you would need to create a project first, then template/components/clientlibs as mentioned in WKND tutorial.
follow WKND and create your own project from scratch, starting with chapter -1. In chapter-3, you would see how to add clientlibs to your project. You would've to create your own clientlibs either directly in /crx/de or in any IDE, create a package and then upload it to local AEM.
Setup your local workspace with Eclipse or any IDE sync it with AEM server