A composable content cloud is a collection of individual data stores and functions that make up a content management system. In the case of Sanity, it is: Content Lake - a distributed network that allows for image/video/file storage that is served with an image manipulation layer that allows for on-the-fly optimisation. Sanity Studio - the client-facing Content Management dashboard that shows the visual version of the schema that you've built Schema Codebase - this is where all the code for Sanity is kept; it's usually kept on a tool like Github and allows a developer to be able to custom tailor the fields a client can see using Sanity