Overview

Work in progress. The server core and the interface prototype run; most of the backlog is still to be written.

Three directions kept apart, where most projects conflate them: a renderer plays right now, a device holds a copy, an emitter lets others read the library. Everything in these pages follows from that split.

• Architecture — topology, plugins, satellites, audio routing
• Stack — technical choices and deployment targets
• Plugins — what one can do, what it cannot, how it reaches the user
• API — the rules the API is built on
• API reference — every route, generated from the router
• UI evolution — iTunes 8 → iTunes 12 → Apple Music

The system map shows inputs, core and outputs on one page, and the interface runs in the browser on a fabricated library.