You can populate a vcpkg Asset Cache on a machine with internet access and then move the downloads/ folder to a secure network.
Downloaded files are stored in the downloads/ directory within your VCPKG_ROOT . Why Use "Download Only"? vcpkg download only
vcpkg will attempt to download every asset required for the installation plan—including the library's source code and any necessary build tools (like CMake or Ninja)—without executing any actual build processes. You can populate a vcpkg Asset Cache on