PSGet is a package manager for Powershell Packages.

In other words, it performs much the same function as IT:AD:Nuget does for .NET libraries or IT:AD:Chocolatey does for apps.

I've used PSGet successfully to install IT:AD:Posh-Git.

That said although the idea is good, the means to add/remove packages to the catalog is brittle:

IT:AD:Powershell 5 is suppossed to add new features that will do much the same thing: