As @Brett Saviano says, if you simply need to work with JSON data, use dynamic objects. If your question is really about the future of data-centric web development with InterSystems, let me step back and offer a higher level viewpoint. %ZEN has been deprecated because it requires some browser features that have been deprecated and may go away at any time. Therefore, we cannot continue to recommend usage to our developers when browsers could break Zen applications and any moment. The DeepSee v3 REST API uses %ZEN classes because it has not been rewritten since the deprecation. 

Zen was developed a long time ago, and many great application development frameworks have gained popularity since then. There are examples of Angular, React, Django and more recently, Streamlit being used in conjunction with IRIS.

There doesn't seem to be a strong desire for offering a proprietary web development framework that could never achieve feature parity with those mass market offerings, and could only beat them in providing faster, more efficient access to the data layer. But I'd love to hear more voices from the community on this topic. 

Hi @Will. Sounds like you are coming from a Windows environment and looking for the equivalent of "the cube". That doesn't exist on MacOS, so like the other Unix-based systems on which IRIS is available you take a command line approach to connect to remote servers by connecting to a remote instance. Also, Studio is Windows-only, so with Mac development it's a great opportunity to migrate to VS Code with ObjectScript extensions