It starts now in the v4 branch.

Let's start off just with design docs for each component.

• define our use cases, what should mongoose contain? what should it not contain?
• these should not include any real code
• after our use cases are defined, lets define the different areas of functionality (schema, query, etc) that will support our use cases
• each area of functionality should have its own design document for what it will solve
• once we have our architecture planned out, we'll start designing the APIs on top of these concerns
• after all use cases are finalized and APIs are defined, we'll start writing some code
• lets use existing modules if possible, no need to rewrite the world if we don't have to