All source files are included. There is no manual on how to create new features, but since it's based on Laravel you can study that framework as a good base. Technical help with features or server related configurations is beyond the scope of this script. There is a lot of information available on the internet on how work with these frameworks.
Libraries and frameworks
A big thank you goes out to these great open source projects, in no particular order:
package.json files in the root of the project.