Modular way of playcanvas exported projects

I have many PlayCanvas projects that serves the purpose of 3d model tutorial.
I was hoping to know what is the best way to manage many different projects with possible overlapping models.

Is it possible to make a configuration so each playcanvas project imports 3d model files from different place (our own s3 bucket)

Also is there any other files other than playcanvas-stable.min.js that may be used for all PlayCanvas projects for also management purpose