Mistake 7 – Skipping end to end testing
When everything looked ready to go live, a quiet engine room revealed what was missed — proper end-to-end testing. Half the PAGA speakers were barely audible, and the failover system failed to switch during a power cut. The cause? Wiring, calibration, and configuration oversights that thorough testing would have caught. The lesson was clear: installation isn’t the finish line, testing is the victory lap.