Building Component Libraries for React Native Apps

Callstack tackles one of React Native's toughest scaling challenges: building component libraries that actually work across teams. Most companies get this wrong and pay for it later.

This deep dive from Callstack's engineering team breaks down the architecture, tooling, and patterns needed to create reusable component libraries for React Native apps. Written for teams hitting the limits of ad-hoc component sharing, it covers everything from monorepo setup to API design.

Key Takeaways

• Component libraries prevent code duplication and enforce design consistency at scale
• Monorepo structure with proper tooling enables shared components across multiple apps
• Type-safe APIs and clear documentation are critical for library adoption
• Version management and breaking changes require careful planning in production apps

The article reveals a specific monorepo pattern that solves the circular dependency problem most teams struggle with when sharing components.