Identity
Tokens, components and pages built from one set of rules.

A design system turns a brand into parts. Color, type, spacing and radius become tokens. Tokens become buttons, cards and forms. Components become pages. Change a token once and every page follows.
At 500 Level, one template system ran more than 50 athlete and celebrity Shopify stores. Same parts, different player. That is a design system.

No. Websites, decks and marketing pages all benefit from shared components.
Yes. Tokens and components are documented so developers can build from them directly.
Part of Brand Identity Systems.