What else there is to read

• Testing and visual QA — the core/tests/ harness that hard-tests every preset for reactivity, animation, shape sanity and beat response.
• Headless capture and video — the shot CLI, --render and the live video-out.
• MilkDrop conversion — reading what milkconv produced.
• Embedding the core — putting the engine inside another application.
• On-device validation — the manual checklist for what CI cannot run: real GPUs, live loopback, installing the foobar2000 component.
• Releasing — how the version moves and what a v* tag builds.
• Non-functional requirements — the quantified budgets behind every “lightweight” and “real-time” claim.
• The architecture decisions — start with ADR-0001, the founding decision, with the rejected alternatives recorded.