Building Design Systems That Actually Scale
Marcus Rivera
Design Systems Lead

Why Most Design Systems Fail
The graveyard of design systems is vast. Most die not from bad components, but from bad governance. Teams build beautiful Figma libraries and pristine Storybook instances, then watch them decay as product teams route around the system to ship faster.
We've built design systems for organizations ranging from 3-person startups to 200-engineer enterprises. The pattern of failure is remarkably consistent.
The Token Architecture
Everything starts with tokens. Not components, not patterns — tokens.
/* Tier 1: Raw values */
--color-teal-600: 191 82% 26%;
/* Tier 2: Semantic aliases */
--color-interactive: var(--color-teal-600);
/* Tier 3: Component-scoped */
--button-bg: var(--color-interactive);This three-tier approach means a global rebrand requires changing Tier 1 values only. Semantic meaning is preserved. Component internals never reference raw values.
"A design system is a product, not a project. It needs a roadmap, a backlog, and a team that treats consumers as customers."
Component API Design
The hardest decision in component design is the boundary between flexibility and consistency. We follow the 80/20 composition rule: components handle 80% of use cases through props, and the remaining 20% through composition slots.
The Governance Model
We established a contribution model with three tiers:
- •Core components: Owned by the design system team. Changes require RFC and review.
- •Domain components: Owned by product teams, built on core primitives. Shared via an internal registry.
- •Local components: Team-specific. No sharing expectation.
Results
After 6 months:
- •67% faster feature development for teams on the system
- •4x reduction in visual inconsistency bugs
- •12 teams actively contributing components
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