The VS Code IDE was built with extensibility in mind, including adding extensions that let developers easily add languages, debuggers, linters, and other tools to their workflow. Individual developers and software providers can build and upload these extensions to an internet-hosted marketplace like Microsoft or Open VSX, where they can be searched and downloaded by other developers. However, for enterprises in regulated industries, accessing such marketplaces is not allowed, and instead, they can host their own air-gapped extension marketplace using the open-source code-marketplace project, which provides a simple API for searching and downloading extensions. This project is a small, portable Go application that can run as a standalone binary or system service, and allows developers to add extensions from a local directory or within Artifactory.