Jess Pomfret takes us on a journey to a desired state:
PowerShell DSC is a platform to support the concept of Infrastructure as Code (IaC). It uses declarative syntax instead of the usual imperative syntax of PowerShell. This means that you describe your desired state rather than the specific steps needed to get there. There are two modes for DSC, push and pull, although pull mode offers more features and scalability, we’ll look at writing our configuration and using push mode for this blog post to keep it simple.
This post covers initial installation and some of the initial configuration, so check it out if you’re new to DSC.