As a platform engineer I would like to create a software template from an existing Quarkus Application.

Why?
The software templates provided by the Developer Hub for Quarkus are fine, but I can see people and teams needing more specialized ones. Examples:

• additional extensions
• configuration
• common source code
• multi-module structure
• custom dockerfiles
• custom manifests

I think that it would make for a great user experience if we could create a working application using the traditional means (e.g. code.quarkus.io, cli etc), perform the required customization (e.g. add code, extensions & configuration) and then turn the application into a template.