Start with adoption, not components
A design system succeeds when product teams can ship faster with fewer decisions. Start by removing repeated choices before building a large component catalog.
Starter checklist
1. Define the first promise
- Pick one product surface where consistency currently hurts delivery.
- Name the first audience: product engineers, designers, or both.
- Write the adoption promise in one sentence.
- Decide what is out of scope for the first milestone.
2. Audit what exists
- Inventory colors, type styles, spacing, radii, shadows, and icon usage.
- Group duplicated components by job instead of file name.
- Capture screenshots of inconsistent states.
- Mark which patterns are used in revenue-critical flows.
3. Create the token layer
- Start with semantic tokens before component-specific tokens.
- Map each token to a product decision.
- Include dark mode, focus, disabled, success, warning, and error states.
- Publish naming rules so new tokens do not become another mess.
4. Ship a small component set
- Choose components with high reuse and low product variance.
- Document props, accessibility expectations, and visual states.
- Include examples copied from real product screens.
- Add migration notes for replacing legacy implementations.
5. Make contribution boring
- Define who reviews tokens, components, and docs.
- Add issue templates for bugs, requests, and adoption blockers.
- Track usage with a simple dashboard or repo search.
- Schedule recurring cleanup before the library becomes stale.
First milestone recommendation
Ship tokens, Button, TextField, Select, Checkbox, Alert, Modal, and documentation for usage. Then measure adoption before expanding the catalog.