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Core Concepts
Mekphen edited this page Jan 4, 2026
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- Signals: Best‑effort device/network/user signals derived from browser APIs or headers.
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Tier: A derived capability bucket (
base | lite | rich | ultra). - Features: Concrete capabilities derived from tier + signals (motion, smooth scrolling, audio, etc.).
- Layers: Declarative gates for enabling enhancements based on tier or features.
- Upgrades: Lazy‑load enhancements at the right time (idle/visibility/interaction/timeout).