\chapter{The Topic And The Underlying Problem}
The main concern of this thesis is to find a viable method for creating application container images in a reliable and reproducible way.
This should be possible with the help of a package manager that source-based packages, by specifying the container image content by referncing packages in a declarative manner.
The choice for this topic is due to my personal unsatisfying experience with currently available methods for creating application container. 
