Start here / Status and availability
How big is the plan?
Built in the repository (checked files or developer tooling, not an app feature) C0013
The catalog snapshot lists 3,181 items in 45 modules. Each item is a planned element; the catalog does not mark any of them as built.
How to read this
The tag above says how real the answer is. Answers describe the plan in the repository and design documents. No app is released. Where an answer touches tax or law, treat it as a theme to verify with a qualified local adviser.