Design systems fail for a predictable reason: they’re built as a component library first and a set of decisions second. Buttons and cards are easy to ship. The harder, more valuable work — agreeing on when to create a new component versus reuse an existing one — is usually skipped, and that’s exactly where systems start to fracture.

Start With Principles, Not Components

Before drawing a single button variant, we document the principles the system is built on: spacing logic, color usage rules, when elevation is appropriate, how density changes across contexts. Components built without agreed principles behind them tend to multiply into dozens of near-duplicate variants within months.

Governance Matters More Than Tooling

Figma libraries and code component packages get all the attention, but the real determinant of whether a system scales is governance — who can propose a new component, how changes get reviewed, and how deprecated patterns get retired. Without a lightweight but real process, every team ends up maintaining their own fork.

Design and Engineering Need One Source of Truth

The systems that hold up long-term treat design tokens as the single source of truth, consumed by both Figma and code, rather than maintaining two versions that drift apart. When a color or spacing value changes, it should change in exactly one place.

A design system isn’t a deliverable you ship once. It’s a product with its own roadmap, and it needs an owner who treats it that way — otherwise entropy wins within a year.