How a close reading of the assertions acquired by RunningBoard can tell you a great deal about the life cycle of an app.
assertion
How this new part of macOS tracks the apps which you open, and declares when they exit “Death Sentinel fired!”
RunningBoard is new to macOS 10.15 and iOS 13. It’s very active in the log, and can cause apps to crash sometimes. So what does it do?
The Eclectic Light Company 