Angular 2: code reuse between many projects

Question

What are the best code sharing techniques between many angular 2 projects?

I know that one of the possibilities is to use the internal npm channel and install packages from there, but this is only if the shared modules are component libraries.

Is it possible to go even further - download the entire application from this internal npm channel (using routing, templates) and, perhaps, configure only some styles and templates, but can also extend the behavior of components if necessary?

I know the question is too abstract, but there are probably some recommendations and recommendations to achieve this?