Things that helped the most:

Things that helped the most: 1. Fixed the top 10 crashes by volume (they were 70% of all crashes) 2. Moved all disk/network work off the main thread (StrictMode in debug builds caught a lot) 3. Null-safety audit on old Java code still in the app 4. Staged rollouts: 5% → 20% → 50% → 100% with automatic halt if crash rate goes up #4 saved us twice. Never ship to 100% on day one.