We have brilliant tools and highly efficient practices for developing and debugging flux applications. But it’s not that easy when it comes to deal with troubles in production, especially with bug reports like “nothing works”. The predictable states could help a lot, but user actions along with API calls are not that predictable. This talk will dive into how to firmly debug client-side state for web and native flux applications, how to reproduce the exact state despite of diverse factors, track the original cause and get fixes out to users. You’ll push development to the next level and improve user experience.