What it is
Cue is a cross-platform numerology app that runs on iOS, Android, and Web from a single codebase.
Numbers
- 90% code sharing across iOS, Android, and Web
- 50% faster feature releases vs platform-specific development
- 4-person team with full technical ownership
- 3 platforms from one codebase
How it's built
React Native with Expo handles mobile, Next.js handles the web. The architecture keeps business logic and UI components shared, with thin platform-specific layers only where native capabilities require it.
The main technical choices:
- Expo managed workflow for simplified builds and over-the-air updates, no ejecting needed
- Firebase for the backend: real-time database, auth, and cloud functions
- Shared component library so the design system renders correctly everywhere
- Feature flags for gradual rollouts and A/B testing across platforms
Running the team
I set the code quality standards, run reviews, and handle performance optimization across all three platforms. I also work with the product side on roadmap prioritization, making sure technical decisions line up with what the business actually needs.

