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Discover Ottrelite, a unified and extensible tracing framework for React Native, in this 25-minute conference talk from React Universe Conf 2025. Learn how Senior Engineers at Callstack, Artur Morys-Magiera and Dominik Dolny, address the longstanding challenges of tracing React Native internals with a flexible solution that doesn't require building from source. Explore how Ottrelite re-enables the existing Systrace JS API through Nitro Modules and provides a comprehensive plugin system for integrating any native tracing backend. Understand the framework's multi-language support spanning JavaScript, Kotlin/Java, Swift/Objective-C, and C++, along with built-in backends including Tracy, Android ATrace, and iOS os_signpost. Examine development versus production workflows, from profiling with Tracy to implementing telemetry with OpenTelemetry and monitoring tools like Grafana, Jaeger, or Prometheus. Master automatic component instrumentation using the Babel plugin and discover hooks for custom tracing and metadata collection. See how Ottrelite bridges the gap between React Native DevTools and modern observability requirements, simplifying cross-platform app tracing, profiling, and monitoring.
