Offline Repository Access

If a company were to try and develop modules in a cleared space with no internet access, is there any way to download a snapshot of the Inductive Automation module repos to point maven at them instead of the online version?

I think the proper way to do this is to run your own on-prem Nexus or other artifact repository and then set it up to proxy and cache artifacts. I don’t know if there’s a way to populate it all initially, without actually being online and having the artifacts requested.