Document executor mechanism and configuration
@@ -610,3 +610,13 @@ include::../../../src/test/java/snippets/DelayTest.java[tags=delay-multi-random]
=== Where do I find the JavaDoc?
The JavaDoc is published https://smallrye.io/smallrye-mutiny/apidocs/[there].
+
+=== Default executor and integration
+
+Sometimes, Mutiny needs to execute tasks on other threads, such as monitoring time or delaying actions.
+Most operators relying on such capacity let you pass either a `ScheduledExecutorService` or an `ExecutorService`.
+
+Mutiny uses the https://www.oracle.com/technical-resources/articles/java/fork-join.html[fork-join] pool as default executor.
+A `ScheduledExecutorService` is also created but delegates the execution of the delayed/scheduled tasks to the default executor.
+
+In the case you want to integrate Mutiny with a thread pool managed by a platform, you can configure it using `Infrastructure.setDefaultExecutor()` method.
