Should you bet on Valdi instead of React Native?

React Native's longstanding performance issues due to its JavaScript bridge have been significantly addressed by Meta's New Architecture, which incorporates JSI, Fabric, and TurboModules to enhance efficiency by replacing the bridge with C++-backed interoperability. In contrast, Snapchat's Valdi takes a distinctive approach by compiling TypeScript directly into native iOS and Android UI elements, bypassing the need for a JavaScript runtime. This results in predictable performance through reduced runtime layers and cross-thread boundaries but at the cost of ecosystem maturity and flexibility. React Native's ecosystem provides a wealth of community support, established optimization strategies, and a vast library of third-party solutions, making it a strong choice for teams prioritizing rapid iteration and lower migration costs. On the other hand, Valdi offers a compelling case for performance-critical applications, requiring deeper native expertise and a readiness to tackle integration challenges independently. The choice between the two often hinges on a team's ability to manage integration and maintenance costs alongside their performance needs and reliance on ecosystem support.