|Home > Documentation > Configuring and administering > Configuring and administering the Apache Geronimo Server > Customizing server assemblies|
Geronimo has always been a flexible, component-based server environment which allowed lightweight server images to be custom built for specific application environments – minimizing server footprint and reducing server startup time. Until now, creating customized Geronimo server runtimes was largely a build-time operation. Geronimo 2.2 greatly simplifies build-time customization, but also allows users to export a new custom server image from a running Geronimo server. Users may take a function-centric approach, choosing the desired set of server plugins for the server, or an application-centric approach, choosing one or more application plugins and allowing Geronimo to calculate the necessary server components required by the applications, or an expert approach, choosing plugins from local plugin repository manually.
Users can extract a new server from the existing one via different ways as followed, or build by Assembling a server using Maven.