[mands]

I wonder how this compares to PsGet (http://psget.net) - or is it simply a cmd-line wrapper around Chocolatey?

[shanselman]

It's a plugin, but a cleanroom implementation of the protocol and file format of Chocolatey. It's not shelling out. They are side by side and compatible.

[jon-wood]

Yup, the article explicitly says that the first built in repository is Chocolatey, but I assume it can be extended to support other sources as well.