Ask HN: How to setup Node.js build server in the closed network

Hi HN,

I'm trying to setup Node.js build and deployment system in the company. But we use closed network, thus, we can't access the external resources like npmjs and github.

So we set up nexus server and proxy npmjs by nexus. But lots of node modules using the github for modules repository but nexux can't proxy github.

Our system security managers are a bit of a maverick and they don't want to open network for it. Is there any solution for solve this problem?

Or how are you using Node.js in private network without proxy?