The Monorepo Advantage: Shipping Features to Web & Mobile at the Same Time

After a month of building Profit Pilot's web app, I started working on the mobile version to keep both platforms moving in parallel.

This is where most projects face a critical decision:

Build everything twice (double the time, double the cost)
Architect once, deploy everywhere

I chose option 2—even with both apps still in active development.

My approach:

Instead of maintaining two separate codebases, I engineered a unified architecture that powers both platforms simultaneously with enterprise-grade scalability.

The architecture:

→ Turborepo monorepo for lightning-fast builds and intelligent caching

→ Shared TypeScript types with strict type safety across all packages

→ Centralized business logic - write once, run everywhere

→ Platform-optimized auth (secure session cookies for web, JWT with refresh tokens for mobile)

→ Shared UI component library maximizing code reuse

→ Real-time sync between platforms using optimistic updates

→ Automated CI/CD pipeline deploying to both platforms simultaneously

→ Environment-agnostic API layer with consistent error handling

The technical edge:

→ 70%+ code sharing between platforms

→ Type-safe API calls with auto-generated clients

→ Single source of truth for business logic and validation

→ Consistent user experience across all devices

→ One security audit, one performance optimization—both platforms benefit

0 comments

Software Engineering

skool.com/software-engineering

A community to help you become the best software engineer

Leaderboard (30-day)

+11