The biggest efficiency error in modern development is redundancy. Different teams writing the same validation logic or the same API data types in separate repositories is a waste of talent and an inexhaustible source of errors.
Next.js + Expo in one place
By unifying Next.js (Web) and Expo (Mobile) within a monorepo, we eliminate technical boundaries to create a "Single Source of Truth."
Shared Packages: Business logic, API calls, and the design system reside in shared local packages that feed all platforms simultaneously.
End-to-End Typing: Thanks to TypeScript, a change in the backend response is instantly reflected as a compilation error in both the web and the mobile app. This eliminates 90% of integration bugs.
Absolute Consistency: We guarantee that the user experiences exactly the same behavior and business rules regardless of the device they use.
Operational coherence
This unification makes it possible to reach the "Holy Grail" of multiplatform development: operational coherence. When business rules or tax calculations reside in a single package, we guarantee that the user experiences exactly the same behavior on any device.
For the company, this translates into a drastic reduction in maintenance costs, as every improvement or fix automatically propagates to all customer touchpoints, ensuring that the brand speaks with a single technical voice.
Reflection
Technological fragmentation is the invisible tax companies pay for not investing in architecture. Unifying is not just about saving code; it’s about ensuring that your brand experience isn’t diluted between versions.
If your web team and your mobile team don’t share a single line of code, you don’t have a multiplatform product; you have two different products competing for the same resources.
