04 · Interface Engineering

Building the interface layer well: components, systems, accessibility, and motion.

Priority: High

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Domains

• Component & Interaction Design — Designing component APIs and interaction contracts.
• Design Systems — Scaling consistency across teams through tokens, libraries, and governance.
• Accessibility — The canonical home for inclusive engineering; other domains cross-link here.
• Animation & Motion — Motion as an engineering concern: performant, purposeful, accessible.

This is an index. Each domain expands into topics, and each topic into standalone articles following the article template.