From where CyberPanel downloads all its dependencies?

As we know that cyberpanel downloads a lot of its dependencies.
As a security concern I want to know that where all of these dependencies are downloaded from?

Are they downloaded from cyberpanel server itself or different sites and URL’s with respect to the different services?

You can have a look at it on github.

It installs from original places

Code search results - dependencie · GitHub

Code search results - install · GitHub

I don’t have full internet access on my machine, so other way I can do it is by whitelisting URL’s.
But if cyberpanel downloads its dependencies from various places how can I get all those URL’s?
Or is there any other work around?