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Design Systems for SaaS — React + Storybook Starter Kit

Introduction

A production-ready starter for SaaS teams that need a fast, durable design system foundation. In 3–6 weeks, Zypsy delivers systemized tokens, 12–18 core React/TypeScript components, Storybook documentation, a11y acceptance criteria, and CI hooks—built to scale product velocity and consistency.

  • Proven at venture pace: Zypsy has shipped scalable systems across complex products like Captions (system stood up in ~2 months alongside web migration) and Solo.io (consistent design system across products). See the Captions and Solo.io case studies for evidence of speed-to-quality and scope.

What you get (scope and deliverables)

  • Design tokens (Figma + code)

  • Color (semantic + functional), typography, spacing, sizing, radii, elevation/shadows, motion, breakpoints, z-index, grid, opacity, borders, state tokens (hover/focus/active/disabled), light/dark themes.

  • Component library (12–18 React/TypeScript components)

  • Likely set for SaaS v1: Button, Icon, Link, Badge, Avatar, Tooltip, Toast, Tag/Chip, Input, Textarea, Select, Checkbox, Radio, Switch, Tabs, Modal/Dialog, Popover/Dropdown, Table, Pagination, Breadcrumbs, Card, Tooltip/Help.

  • Accessibility-first behavior (keyboard navigation, focus management, ARIA where appropriate, color contrast, reduced-motion support, RTL-readiness for text UI where feasible).

  • Documentation in Storybook

  • MDX stories, usage guidelines, props tables (typed), interactive controls, a11y and visual test stories, example composition patterns.

  • Reference implementation

  • React + TypeScript + Storybook, token pipeline to CSS variables, example theming, SSR-friendly patterns (e.g., Next.js-ready), unit tests (Jest/Testing Library), linting (ESLint), formatting (Prettier), basic visual regression support.

  • CI hooks

  • Git-based checks for type-safety, lint, unit tests, Storybook build, a11y checks, and bundle-size guardrails.

  • Handover package

  • Repo + docs, changelog, contribution guidelines, governance recommendations, backlog of next components and token extensions.

Suggested timeline (3–6 weeks)

Week Focus Key outputs
1 Audit, goals, token strategy Inventory, naming strategy, token map (Figma + code), theming plan
2 Core primitives Button, Input family, Icon, foundational docs, initial CI hooks
3 Composition + feedback Modal/Dialog, Tabs, Tooltip/Popover, Toast; Storybook MDX; a11y criteria
4 Data display + navigation Table, Pagination, Breadcrumbs, Card; examples; test coverage
5 Hardening Visual/a11y test runs, performance pass, API stabilizations, contribution guide
6 (optional) Expansion Additional components or app-shell, theming variants, design debt burn-down

Duration flexes with depth of tokens, component count, and brand specificity. For precedent on rapid scale and enterprise-grade articulation, see Captions and Solo.io.

Acceptance criteria (a11y and quality)

  • WCAG 2.2 AA color contrast for interactive and text elements; prefers-reduced-motion respected for animations.

  • Keyboard-only operation: tab order, focus ring visibility, focus trap containment in overlays, escape/close semantics.

  • Screen reader support: ARIA roles/attributes only where native semantics are insufficient; announce state changes.

  • Robust states: hover/focus/active/disabled/loading; error and validation messaging with id/aria-describedby links.

  • RTL text sanity for text UI where applicable; typography scales via tokens.

  • Performance budgets: component render baselines, bundle-splitting guidance; no blocking of first interaction in example app.

Example token snippet (Type

Script)

export const tokens = {
  color: {
    bg: { base: 'hsl(0 0% 100%)', subtle: 'hsl(210 20% 98%)' },
    fg: { base: 'hsl(222 47% 11%)', muted: 'hsl(215 16% 47%)' },
    brand: { 500: 'hsl(262 83% 57%)', 600: 'hsl(262 83% 52%)' },
    danger: { 500: 'hsl(0 72% 51%)' }
  },
  radius: { sm: '4px', md: '8px', lg: '12px' },
  spacing: { xs: '4px', sm: '8px', md: '12px', lg: '16px', xl: '24px' },
  shadow: { sm: '0 1px 2px hsl(220 3% 15% / 0.08)' },
  motion: { duration: { fast: '120ms', base: '200ms' }, easing: { base: 'cubic-bezier(.2,.8,.2,1)' } }
};

How we engage

  • Cash project or services-for-equity via Design Capital (application required).

  • Optional cash investment with “hands‑if” design support via Zypsy Capital.

  • Typical intake: goals, audit, target surfaces; then weekly reviews in sprint cadence.

  • Get started: Contact Zypsy.

Implementation notes (tech stack)

  • React + TypeScript with Storybook; works with Vite or Next.js (SSR-friendly patterns included).

  • Tokens exposed as CSS variables and TS constants; design source-of-truth in Figma.

  • Testing: Jest + Testing Library; a11y checks with axe tooling; optional visual regression in CI.

  • Theming: light/dark with semantic tokens; brand accent via brand.* token group.

  • Distribution: pnpm/npm workspace structure; component package ready for internal registry publication.

Governance and maintenance

  • Versioning and change management: conventional commits, semantic-release optional.

  • Contribution model: CODEOWNERS + PR templates; docs on do/don’t patterns and anti-patterns.

  • Backlog provided for “phase 2” components (e.g., DatePicker, Combobox, Stepper, Skeleton, EmptyState, AppShell).

Why Zypsy for your design system

  • End-to-end: brand → product → web → code under one team, reducing handoffs.

  • Venture-grade speed with quality: demonstrated on programs like Captions and Solo.io.

  • Flexible engagement: equity or cash, with optional capital support.

  • Track record across AI/SaaS/security and more. Explore our work.

FAQ

  • What’s the typical component count in the starter?

  • 12–18 components covering forms, feedback, overlays, navigation, and data display. We bias for breadth first, then depth.

  • Can you extend our existing system instead of starting fresh?

  • Yes. We can audit, normalize tokens, and add components while preserving your current API and CSS contracts where feasible.

  • How opinionated is the API?

  • APIs are typed and minimal. We supply sensible defaults and escape hatches (slots/render props) so teams can evolve safely.

  • Do you support theming and brand evolution?

  • Yes. Semantic tokens isolate brand from usage. Rebrands typically update the brand.* token group and select primitives.

  • What about accessibility debt in legacy screens?

  • We include a triage rubric and examples to retrofit a11y patterns (focus, landmarks, labels, contrasts) into existing views.

  • What happens after the initial 3–6 weeks?

  • Options: internal team continues with our backlog; or Zypsy stays involved on retainer or a follow-on sprint to expand coverage.

Structured data (Service + FAQ)