MDT can be used using PowerShell.
Indeed you can do whatever you want with MDT & PowerShell.
For instance you can import application, Operating System, package or also create and update a Deployment Share.
MDT allows you to see each corresponding PowerShell script for a specific action.
In this post, you can find a document I have created that gather PowerShell cmdlets to manage the Microsoft Deployment Toolkit.
How to get the PDF ?