Scout APM helps PHP developers pinpoint N+1 queries, memory leaks & more so you can troubleshoot fast & get back to coding faster. Credit where credit is due, many new features were inspired by Axon, a popular event sourcing framework in the Java world, and several people pitched in during the development process.
Aggregate roots required you to write applyEventName functions, while projectors and reactors had an explicit event mapping.
Event queries are a new feature that allow you to easily query an event stream without building database projections.
Here's an example of it in action: Note that these examples come from the Event Sourcing in Laravel book.