diff --git a/01-setting-up-your-environment/projects/final/packages/monitoring/lib/monitoring.dart b/01-setting-up-your-environment/projects/final/packages/monitoring/lib/monitoring.dart
index d2d3fba8..f9c72b46 100644
--- a/01-setting-up-your-environment/projects/final/packages/monitoring/lib/monitoring.dart
+++ b/01-setting-up-your-environment/projects/final/packages/monitoring/lib/monitoring.dart
@@ -3,6 +3,7 @@ import 'package:firebase_core/firebase_core.dart';
 export 'src/dynamic_link_service.dart';
 export 'src/analytics_service.dart';
 export 'src/error_reporting_service.dart';
+export 'src/explicit_crash.dart';
 export 'src/remote_value_service.dart';
 
 Future<void> initializeMonitoringPackage() => Firebase.initializeApp();
diff --git a/01-setting-up-your-environment/projects/final/packages/monitoring/lib/src/explicit_crash.dart b/01-setting-up-your-environment/projects/final/packages/monitoring/lib/src/explicit_crash.dart
new file mode 100644
index 00000000..86864715
--- /dev/null
+++ b/01-setting-up-your-environment/projects/final/packages/monitoring/lib/src/explicit_crash.dart
@@ -0,0 +1,16 @@
+import 'package:firebase_crashlytics/firebase_crashlytics.dart';
+import 'package:flutter/foundation.dart';
+
+class ExplicitCrash {
+  ExplicitCrash({
+    @visibleForTesting FirebaseCrashlytics? crashlytics,
+  }) : _crashlytics = crashlytics ?? FirebaseCrashlytics.instance;
+
+  // 1
+  final FirebaseCrashlytics _crashlytics;
+
+  // 2
+  crashTheApp() {
+    _crashlytics.crash();
+  }
+}
diff --git a/01-setting-up-your-environment/projects/starter/packages/monitoring/lib/monitoring.dart b/01-setting-up-your-environment/projects/starter/packages/monitoring/lib/monitoring.dart
index d2d3fba8..f9c72b46 100644
--- a/01-setting-up-your-environment/projects/starter/packages/monitoring/lib/monitoring.dart
+++ b/01-setting-up-your-environment/projects/starter/packages/monitoring/lib/monitoring.dart
@@ -3,6 +3,7 @@ import 'package:firebase_core/firebase_core.dart';
 export 'src/dynamic_link_service.dart';
 export 'src/analytics_service.dart';
 export 'src/error_reporting_service.dart';
+export 'src/explicit_crash.dart';
 export 'src/remote_value_service.dart';
 
 Future<void> initializeMonitoringPackage() => Firebase.initializeApp();
diff --git a/01-setting-up-your-environment/projects/starter/packages/monitoring/lib/src/explicit_crash.dart b/01-setting-up-your-environment/projects/starter/packages/monitoring/lib/src/explicit_crash.dart
new file mode 100644
index 00000000..86864715
--- /dev/null
+++ b/01-setting-up-your-environment/projects/starter/packages/monitoring/lib/src/explicit_crash.dart
@@ -0,0 +1,16 @@
+import 'package:firebase_crashlytics/firebase_crashlytics.dart';
+import 'package:flutter/foundation.dart';
+
+class ExplicitCrash {
+  ExplicitCrash({
+    @visibleForTesting FirebaseCrashlytics? crashlytics,
+  }) : _crashlytics = crashlytics ?? FirebaseCrashlytics.instance;
+
+  // 1
+  final FirebaseCrashlytics _crashlytics;
+
+  // 2
+  crashTheApp() {
+    _crashlytics.crash();
+  }
+}
diff --git a/02-mastering-the-repository-pattern/projects/final/packages/monitoring/lib/monitoring.dart b/02-mastering-the-repository-pattern/projects/final/packages/monitoring/lib/monitoring.dart
index d2d3fba8..f9c72b46 100644
--- a/02-mastering-the-repository-pattern/projects/final/packages/monitoring/lib/monitoring.dart
+++ b/02-mastering-the-repository-pattern/projects/final/packages/monitoring/lib/monitoring.dart
@@ -3,6 +3,7 @@ import 'package:firebase_core/firebase_core.dart';
 export 'src/dynamic_link_service.dart';
 export 'src/analytics_service.dart';
 export 'src/error_reporting_service.dart';
+export 'src/explicit_crash.dart';
 export 'src/remote_value_service.dart';
 
 Future<void> initializeMonitoringPackage() => Firebase.initializeApp();
diff --git a/02-mastering-the-repository-pattern/projects/final/packages/monitoring/lib/src/explicit_crash.dart b/02-mastering-the-repository-pattern/projects/final/packages/monitoring/lib/src/explicit_crash.dart
new file mode 100644
index 00000000..86864715
--- /dev/null
+++ b/02-mastering-the-repository-pattern/projects/final/packages/monitoring/lib/src/explicit_crash.dart
@@ -0,0 +1,16 @@
+import 'package:firebase_crashlytics/firebase_crashlytics.dart';
+import 'package:flutter/foundation.dart';
+
+class ExplicitCrash {
+  ExplicitCrash({
+    @visibleForTesting FirebaseCrashlytics? crashlytics,
+  }) : _crashlytics = crashlytics ?? FirebaseCrashlytics.instance;
+
+  // 1
+  final FirebaseCrashlytics _crashlytics;
+
+  // 2
+  crashTheApp() {
+    _crashlytics.crash();
+  }
+}
diff --git a/02-mastering-the-repository-pattern/projects/starter/packages/monitoring/lib/monitoring.dart b/02-mastering-the-repository-pattern/projects/starter/packages/monitoring/lib/monitoring.dart
index d2d3fba8..f9c72b46 100644
--- a/02-mastering-the-repository-pattern/projects/starter/packages/monitoring/lib/monitoring.dart
+++ b/02-mastering-the-repository-pattern/projects/starter/packages/monitoring/lib/monitoring.dart
@@ -3,6 +3,7 @@ import 'package:firebase_core/firebase_core.dart';
 export 'src/dynamic_link_service.dart';
 export 'src/analytics_service.dart';
 export 'src/error_reporting_service.dart';
+export 'src/explicit_crash.dart';
 export 'src/remote_value_service.dart';
 
 Future<void> initializeMonitoringPackage() => Firebase.initializeApp();
diff --git a/02-mastering-the-repository-pattern/projects/starter/packages/monitoring/lib/src/explicit_crash.dart b/02-mastering-the-repository-pattern/projects/starter/packages/monitoring/lib/src/explicit_crash.dart
new file mode 100644
index 00000000..86864715
--- /dev/null
+++ b/02-mastering-the-repository-pattern/projects/starter/packages/monitoring/lib/src/explicit_crash.dart
@@ -0,0 +1,16 @@
+import 'package:firebase_crashlytics/firebase_crashlytics.dart';
+import 'package:flutter/foundation.dart';
+
+class ExplicitCrash {
+  ExplicitCrash({
+    @visibleForTesting FirebaseCrashlytics? crashlytics,
+  }) : _crashlytics = crashlytics ?? FirebaseCrashlytics.instance;
+
+  // 1
+  final FirebaseCrashlytics _crashlytics;
+
+  // 2
+  crashTheApp() {
+    _crashlytics.crash();
+  }
+}
diff --git a/03-managing-state-with-cubits-and-the-bloc-library/projects/challenge/packages/monitoring/lib/monitoring.dart b/03-managing-state-with-cubits-and-the-bloc-library/projects/challenge/packages/monitoring/lib/monitoring.dart
index d2d3fba8..f9c72b46 100644
--- a/03-managing-state-with-cubits-and-the-bloc-library/projects/challenge/packages/monitoring/lib/monitoring.dart
+++ b/03-managing-state-with-cubits-and-the-bloc-library/projects/challenge/packages/monitoring/lib/monitoring.dart
@@ -3,6 +3,7 @@ import 'package:firebase_core/firebase_core.dart';
 export 'src/dynamic_link_service.dart';
 export 'src/analytics_service.dart';
 export 'src/error_reporting_service.dart';
+export 'src/explicit_crash.dart';
 export 'src/remote_value_service.dart';
 
 Future<void> initializeMonitoringPackage() => Firebase.initializeApp();
diff --git a/03-managing-state-with-cubits-and-the-bloc-library/projects/challenge/packages/monitoring/lib/src/explicit_crash.dart b/03-managing-state-with-cubits-and-the-bloc-library/projects/challenge/packages/monitoring/lib/src/explicit_crash.dart
new file mode 100644
index 00000000..86864715
--- /dev/null
+++ b/03-managing-state-with-cubits-and-the-bloc-library/projects/challenge/packages/monitoring/lib/src/explicit_crash.dart
@@ -0,0 +1,16 @@
+import 'package:firebase_crashlytics/firebase_crashlytics.dart';
+import 'package:flutter/foundation.dart';
+
+class ExplicitCrash {
+  ExplicitCrash({
+    @visibleForTesting FirebaseCrashlytics? crashlytics,
+  }) : _crashlytics = crashlytics ?? FirebaseCrashlytics.instance;
+
+  // 1
+  final FirebaseCrashlytics _crashlytics;
+
+  // 2
+  crashTheApp() {
+    _crashlytics.crash();
+  }
+}
diff --git a/03-managing-state-with-cubits-and-the-bloc-library/projects/final/packages/monitoring/lib/monitoring.dart b/03-managing-state-with-cubits-and-the-bloc-library/projects/final/packages/monitoring/lib/monitoring.dart
index d2d3fba8..f9c72b46 100644
--- a/03-managing-state-with-cubits-and-the-bloc-library/projects/final/packages/monitoring/lib/monitoring.dart
+++ b/03-managing-state-with-cubits-and-the-bloc-library/projects/final/packages/monitoring/lib/monitoring.dart
@@ -3,6 +3,7 @@ import 'package:firebase_core/firebase_core.dart';
 export 'src/dynamic_link_service.dart';
 export 'src/analytics_service.dart';
 export 'src/error_reporting_service.dart';
+export 'src/explicit_crash.dart';
 export 'src/remote_value_service.dart';
 
 Future<void> initializeMonitoringPackage() => Firebase.initializeApp();
diff --git a/03-managing-state-with-cubits-and-the-bloc-library/projects/final/packages/monitoring/lib/src/explicit_crash.dart b/03-managing-state-with-cubits-and-the-bloc-library/projects/final/packages/monitoring/lib/src/explicit_crash.dart
new file mode 100644
index 00000000..86864715
--- /dev/null
+++ b/03-managing-state-with-cubits-and-the-bloc-library/projects/final/packages/monitoring/lib/src/explicit_crash.dart
@@ -0,0 +1,16 @@
+import 'package:firebase_crashlytics/firebase_crashlytics.dart';
+import 'package:flutter/foundation.dart';
+
+class ExplicitCrash {
+  ExplicitCrash({
+    @visibleForTesting FirebaseCrashlytics? crashlytics,
+  }) : _crashlytics = crashlytics ?? FirebaseCrashlytics.instance;
+
+  // 1
+  final FirebaseCrashlytics _crashlytics;
+
+  // 2
+  crashTheApp() {
+    _crashlytics.crash();
+  }
+}
diff --git a/03-managing-state-with-cubits-and-the-bloc-library/projects/starter/packages/monitoring/lib/monitoring.dart b/03-managing-state-with-cubits-and-the-bloc-library/projects/starter/packages/monitoring/lib/monitoring.dart
index d2d3fba8..f9c72b46 100644
--- a/03-managing-state-with-cubits-and-the-bloc-library/projects/starter/packages/monitoring/lib/monitoring.dart
+++ b/03-managing-state-with-cubits-and-the-bloc-library/projects/starter/packages/monitoring/lib/monitoring.dart
@@ -3,6 +3,7 @@ import 'package:firebase_core/firebase_core.dart';
 export 'src/dynamic_link_service.dart';
 export 'src/analytics_service.dart';
 export 'src/error_reporting_service.dart';
+export 'src/explicit_crash.dart';
 export 'src/remote_value_service.dart';
 
 Future<void> initializeMonitoringPackage() => Firebase.initializeApp();
diff --git a/03-managing-state-with-cubits-and-the-bloc-library/projects/starter/packages/monitoring/lib/src/explicit_crash.dart b/03-managing-state-with-cubits-and-the-bloc-library/projects/starter/packages/monitoring/lib/src/explicit_crash.dart
new file mode 100644
index 00000000..86864715
--- /dev/null
+++ b/03-managing-state-with-cubits-and-the-bloc-library/projects/starter/packages/monitoring/lib/src/explicit_crash.dart
@@ -0,0 +1,16 @@
+import 'package:firebase_crashlytics/firebase_crashlytics.dart';
+import 'package:flutter/foundation.dart';
+
+class ExplicitCrash {
+  ExplicitCrash({
+    @visibleForTesting FirebaseCrashlytics? crashlytics,
+  }) : _crashlytics = crashlytics ?? FirebaseCrashlytics.instance;
+
+  // 1
+  final FirebaseCrashlytics _crashlytics;
+
+  // 2
+  crashTheApp() {
+    _crashlytics.crash();
+  }
+}
diff --git a/04-validating-forms-with-cubits/projects/final/packages/monitoring/lib/monitoring.dart b/04-validating-forms-with-cubits/projects/final/packages/monitoring/lib/monitoring.dart
index d2d3fba8..f9c72b46 100644
--- a/04-validating-forms-with-cubits/projects/final/packages/monitoring/lib/monitoring.dart
+++ b/04-validating-forms-with-cubits/projects/final/packages/monitoring/lib/monitoring.dart
@@ -3,6 +3,7 @@ import 'package:firebase_core/firebase_core.dart';
 export 'src/dynamic_link_service.dart';
 export 'src/analytics_service.dart';
 export 'src/error_reporting_service.dart';
+export 'src/explicit_crash.dart';
 export 'src/remote_value_service.dart';
 
 Future<void> initializeMonitoringPackage() => Firebase.initializeApp();
diff --git a/04-validating-forms-with-cubits/projects/final/packages/monitoring/lib/src/explicit_crash.dart b/04-validating-forms-with-cubits/projects/final/packages/monitoring/lib/src/explicit_crash.dart
new file mode 100644
index 00000000..86864715
--- /dev/null
+++ b/04-validating-forms-with-cubits/projects/final/packages/monitoring/lib/src/explicit_crash.dart
@@ -0,0 +1,16 @@
+import 'package:firebase_crashlytics/firebase_crashlytics.dart';
+import 'package:flutter/foundation.dart';
+
+class ExplicitCrash {
+  ExplicitCrash({
+    @visibleForTesting FirebaseCrashlytics? crashlytics,
+  }) : _crashlytics = crashlytics ?? FirebaseCrashlytics.instance;
+
+  // 1
+  final FirebaseCrashlytics _crashlytics;
+
+  // 2
+  crashTheApp() {
+    _crashlytics.crash();
+  }
+}
diff --git a/04-validating-forms-with-cubits/projects/starter/packages/monitoring/lib/monitoring.dart b/04-validating-forms-with-cubits/projects/starter/packages/monitoring/lib/monitoring.dart
index d2d3fba8..f9c72b46 100644
--- a/04-validating-forms-with-cubits/projects/starter/packages/monitoring/lib/monitoring.dart
+++ b/04-validating-forms-with-cubits/projects/starter/packages/monitoring/lib/monitoring.dart
@@ -3,6 +3,7 @@ import 'package:firebase_core/firebase_core.dart';
 export 'src/dynamic_link_service.dart';
 export 'src/analytics_service.dart';
 export 'src/error_reporting_service.dart';
+export 'src/explicit_crash.dart';
 export 'src/remote_value_service.dart';
 
 Future<void> initializeMonitoringPackage() => Firebase.initializeApp();
diff --git a/04-validating-forms-with-cubits/projects/starter/packages/monitoring/lib/src/explicit_crash.dart b/04-validating-forms-with-cubits/projects/starter/packages/monitoring/lib/src/explicit_crash.dart
new file mode 100644
index 00000000..86864715
--- /dev/null
+++ b/04-validating-forms-with-cubits/projects/starter/packages/monitoring/lib/src/explicit_crash.dart
@@ -0,0 +1,16 @@
+import 'package:firebase_crashlytics/firebase_crashlytics.dart';
+import 'package:flutter/foundation.dart';
+
+class ExplicitCrash {
+  ExplicitCrash({
+    @visibleForTesting FirebaseCrashlytics? crashlytics,
+  }) : _crashlytics = crashlytics ?? FirebaseCrashlytics.instance;
+
+  // 1
+  final FirebaseCrashlytics _crashlytics;
+
+  // 2
+  crashTheApp() {
+    _crashlytics.crash();
+  }
+}
diff --git a/05-managing-complex-state-with-blocs/projects/final/packages/monitoring/lib/monitoring.dart b/05-managing-complex-state-with-blocs/projects/final/packages/monitoring/lib/monitoring.dart
index d2d3fba8..f9c72b46 100644
--- a/05-managing-complex-state-with-blocs/projects/final/packages/monitoring/lib/monitoring.dart
+++ b/05-managing-complex-state-with-blocs/projects/final/packages/monitoring/lib/monitoring.dart
@@ -3,6 +3,7 @@ import 'package:firebase_core/firebase_core.dart';
 export 'src/dynamic_link_service.dart';
 export 'src/analytics_service.dart';
 export 'src/error_reporting_service.dart';
+export 'src/explicit_crash.dart';
 export 'src/remote_value_service.dart';
 
 Future<void> initializeMonitoringPackage() => Firebase.initializeApp();
diff --git a/05-managing-complex-state-with-blocs/projects/final/packages/monitoring/lib/src/explicit_crash.dart b/05-managing-complex-state-with-blocs/projects/final/packages/monitoring/lib/src/explicit_crash.dart
new file mode 100644
index 00000000..86864715
--- /dev/null
+++ b/05-managing-complex-state-with-blocs/projects/final/packages/monitoring/lib/src/explicit_crash.dart
@@ -0,0 +1,16 @@
+import 'package:firebase_crashlytics/firebase_crashlytics.dart';
+import 'package:flutter/foundation.dart';
+
+class ExplicitCrash {
+  ExplicitCrash({
+    @visibleForTesting FirebaseCrashlytics? crashlytics,
+  }) : _crashlytics = crashlytics ?? FirebaseCrashlytics.instance;
+
+  // 1
+  final FirebaseCrashlytics _crashlytics;
+
+  // 2
+  crashTheApp() {
+    _crashlytics.crash();
+  }
+}
diff --git a/05-managing-complex-state-with-blocs/projects/starter/packages/monitoring/lib/monitoring.dart b/05-managing-complex-state-with-blocs/projects/starter/packages/monitoring/lib/monitoring.dart
index d2d3fba8..f9c72b46 100644
--- a/05-managing-complex-state-with-blocs/projects/starter/packages/monitoring/lib/monitoring.dart
+++ b/05-managing-complex-state-with-blocs/projects/starter/packages/monitoring/lib/monitoring.dart
@@ -3,6 +3,7 @@ import 'package:firebase_core/firebase_core.dart';
 export 'src/dynamic_link_service.dart';
 export 'src/analytics_service.dart';
 export 'src/error_reporting_service.dart';
+export 'src/explicit_crash.dart';
 export 'src/remote_value_service.dart';
 
 Future<void> initializeMonitoringPackage() => Firebase.initializeApp();
diff --git a/05-managing-complex-state-with-blocs/projects/starter/packages/monitoring/lib/src/explicit_crash.dart b/05-managing-complex-state-with-blocs/projects/starter/packages/monitoring/lib/src/explicit_crash.dart
new file mode 100644
index 00000000..86864715
--- /dev/null
+++ b/05-managing-complex-state-with-blocs/projects/starter/packages/monitoring/lib/src/explicit_crash.dart
@@ -0,0 +1,16 @@
+import 'package:firebase_crashlytics/firebase_crashlytics.dart';
+import 'package:flutter/foundation.dart';
+
+class ExplicitCrash {
+  ExplicitCrash({
+    @visibleForTesting FirebaseCrashlytics? crashlytics,
+  }) : _crashlytics = crashlytics ?? FirebaseCrashlytics.instance;
+
+  // 1
+  final FirebaseCrashlytics _crashlytics;
+
+  // 2
+  crashTheApp() {
+    _crashlytics.crash();
+  }
+}
diff --git a/06-authenticating-users/projects/final/packages/monitoring/lib/monitoring.dart b/06-authenticating-users/projects/final/packages/monitoring/lib/monitoring.dart
index d2d3fba8..f9c72b46 100644
--- a/06-authenticating-users/projects/final/packages/monitoring/lib/monitoring.dart
+++ b/06-authenticating-users/projects/final/packages/monitoring/lib/monitoring.dart
@@ -3,6 +3,7 @@ import 'package:firebase_core/firebase_core.dart';
 export 'src/dynamic_link_service.dart';
 export 'src/analytics_service.dart';
 export 'src/error_reporting_service.dart';
+export 'src/explicit_crash.dart';
 export 'src/remote_value_service.dart';
 
 Future<void> initializeMonitoringPackage() => Firebase.initializeApp();
diff --git a/06-authenticating-users/projects/final/packages/monitoring/lib/src/explicit_crash.dart b/06-authenticating-users/projects/final/packages/monitoring/lib/src/explicit_crash.dart
new file mode 100644
index 00000000..86864715
--- /dev/null
+++ b/06-authenticating-users/projects/final/packages/monitoring/lib/src/explicit_crash.dart
@@ -0,0 +1,16 @@
+import 'package:firebase_crashlytics/firebase_crashlytics.dart';
+import 'package:flutter/foundation.dart';
+
+class ExplicitCrash {
+  ExplicitCrash({
+    @visibleForTesting FirebaseCrashlytics? crashlytics,
+  }) : _crashlytics = crashlytics ?? FirebaseCrashlytics.instance;
+
+  // 1
+  final FirebaseCrashlytics _crashlytics;
+
+  // 2
+  crashTheApp() {
+    _crashlytics.crash();
+  }
+}
diff --git a/06-authenticating-users/projects/starter/packages/monitoring/lib/monitoring.dart b/06-authenticating-users/projects/starter/packages/monitoring/lib/monitoring.dart
index d2d3fba8..f9c72b46 100644
--- a/06-authenticating-users/projects/starter/packages/monitoring/lib/monitoring.dart
+++ b/06-authenticating-users/projects/starter/packages/monitoring/lib/monitoring.dart
@@ -3,6 +3,7 @@ import 'package:firebase_core/firebase_core.dart';
 export 'src/dynamic_link_service.dart';
 export 'src/analytics_service.dart';
 export 'src/error_reporting_service.dart';
+export 'src/explicit_crash.dart';
 export 'src/remote_value_service.dart';
 
 Future<void> initializeMonitoringPackage() => Firebase.initializeApp();
diff --git a/06-authenticating-users/projects/starter/packages/monitoring/lib/src/explicit_crash.dart b/06-authenticating-users/projects/starter/packages/monitoring/lib/src/explicit_crash.dart
new file mode 100644
index 00000000..86864715
--- /dev/null
+++ b/06-authenticating-users/projects/starter/packages/monitoring/lib/src/explicit_crash.dart
@@ -0,0 +1,16 @@
+import 'package:firebase_crashlytics/firebase_crashlytics.dart';
+import 'package:flutter/foundation.dart';
+
+class ExplicitCrash {
+  ExplicitCrash({
+    @visibleForTesting FirebaseCrashlytics? crashlytics,
+  }) : _crashlytics = crashlytics ?? FirebaseCrashlytics.instance;
+
+  // 1
+  final FirebaseCrashlytics _crashlytics;
+
+  // 2
+  crashTheApp() {
+    _crashlytics.crash();
+  }
+}
diff --git a/07-routing-and-navigating/projects/final/packages/monitoring/lib/monitoring.dart b/07-routing-and-navigating/projects/final/packages/monitoring/lib/monitoring.dart
index d2d3fba8..f9c72b46 100644
--- a/07-routing-and-navigating/projects/final/packages/monitoring/lib/monitoring.dart
+++ b/07-routing-and-navigating/projects/final/packages/monitoring/lib/monitoring.dart
@@ -3,6 +3,7 @@ import 'package:firebase_core/firebase_core.dart';
 export 'src/dynamic_link_service.dart';
 export 'src/analytics_service.dart';
 export 'src/error_reporting_service.dart';
+export 'src/explicit_crash.dart';
 export 'src/remote_value_service.dart';
 
 Future<void> initializeMonitoringPackage() => Firebase.initializeApp();
diff --git a/07-routing-and-navigating/projects/final/packages/monitoring/lib/src/explicit_crash.dart b/07-routing-and-navigating/projects/final/packages/monitoring/lib/src/explicit_crash.dart
new file mode 100644
index 00000000..86864715
--- /dev/null
+++ b/07-routing-and-navigating/projects/final/packages/monitoring/lib/src/explicit_crash.dart
@@ -0,0 +1,16 @@
+import 'package:firebase_crashlytics/firebase_crashlytics.dart';
+import 'package:flutter/foundation.dart';
+
+class ExplicitCrash {
+  ExplicitCrash({
+    @visibleForTesting FirebaseCrashlytics? crashlytics,
+  }) : _crashlytics = crashlytics ?? FirebaseCrashlytics.instance;
+
+  // 1
+  final FirebaseCrashlytics _crashlytics;
+
+  // 2
+  crashTheApp() {
+    _crashlytics.crash();
+  }
+}
diff --git a/07-routing-and-navigating/projects/starter/packages/monitoring/lib/monitoring.dart b/07-routing-and-navigating/projects/starter/packages/monitoring/lib/monitoring.dart
index d2d3fba8..f9c72b46 100644
--- a/07-routing-and-navigating/projects/starter/packages/monitoring/lib/monitoring.dart
+++ b/07-routing-and-navigating/projects/starter/packages/monitoring/lib/monitoring.dart
@@ -3,6 +3,7 @@ import 'package:firebase_core/firebase_core.dart';
 export 'src/dynamic_link_service.dart';
 export 'src/analytics_service.dart';
 export 'src/error_reporting_service.dart';
+export 'src/explicit_crash.dart';
 export 'src/remote_value_service.dart';
 
 Future<void> initializeMonitoringPackage() => Firebase.initializeApp();
diff --git a/07-routing-and-navigating/projects/starter/packages/monitoring/lib/src/explicit_crash.dart b/07-routing-and-navigating/projects/starter/packages/monitoring/lib/src/explicit_crash.dart
new file mode 100644
index 00000000..86864715
--- /dev/null
+++ b/07-routing-and-navigating/projects/starter/packages/monitoring/lib/src/explicit_crash.dart
@@ -0,0 +1,16 @@
+import 'package:firebase_crashlytics/firebase_crashlytics.dart';
+import 'package:flutter/foundation.dart';
+
+class ExplicitCrash {
+  ExplicitCrash({
+    @visibleForTesting FirebaseCrashlytics? crashlytics,
+  }) : _crashlytics = crashlytics ?? FirebaseCrashlytics.instance;
+
+  // 1
+  final FirebaseCrashlytics _crashlytics;
+
+  // 2
+  crashTheApp() {
+    _crashlytics.crash();
+  }
+}
diff --git a/08-deep-linking/projects/final/packages/monitoring/lib/monitoring.dart b/08-deep-linking/projects/final/packages/monitoring/lib/monitoring.dart
index d2d3fba8..f9c72b46 100644
--- a/08-deep-linking/projects/final/packages/monitoring/lib/monitoring.dart
+++ b/08-deep-linking/projects/final/packages/monitoring/lib/monitoring.dart
@@ -3,6 +3,7 @@ import 'package:firebase_core/firebase_core.dart';
 export 'src/dynamic_link_service.dart';
 export 'src/analytics_service.dart';
 export 'src/error_reporting_service.dart';
+export 'src/explicit_crash.dart';
 export 'src/remote_value_service.dart';
 
 Future<void> initializeMonitoringPackage() => Firebase.initializeApp();
diff --git a/08-deep-linking/projects/final/packages/monitoring/lib/src/explicit_crash.dart b/08-deep-linking/projects/final/packages/monitoring/lib/src/explicit_crash.dart
new file mode 100644
index 00000000..86864715
--- /dev/null
+++ b/08-deep-linking/projects/final/packages/monitoring/lib/src/explicit_crash.dart
@@ -0,0 +1,16 @@
+import 'package:firebase_crashlytics/firebase_crashlytics.dart';
+import 'package:flutter/foundation.dart';
+
+class ExplicitCrash {
+  ExplicitCrash({
+    @visibleForTesting FirebaseCrashlytics? crashlytics,
+  }) : _crashlytics = crashlytics ?? FirebaseCrashlytics.instance;
+
+  // 1
+  final FirebaseCrashlytics _crashlytics;
+
+  // 2
+  crashTheApp() {
+    _crashlytics.crash();
+  }
+}
diff --git a/08-deep-linking/projects/starter/packages/monitoring/lib/monitoring.dart b/08-deep-linking/projects/starter/packages/monitoring/lib/monitoring.dart
index d2d3fba8..f9c72b46 100644
--- a/08-deep-linking/projects/starter/packages/monitoring/lib/monitoring.dart
+++ b/08-deep-linking/projects/starter/packages/monitoring/lib/monitoring.dart
@@ -3,6 +3,7 @@ import 'package:firebase_core/firebase_core.dart';
 export 'src/dynamic_link_service.dart';
 export 'src/analytics_service.dart';
 export 'src/error_reporting_service.dart';
+export 'src/explicit_crash.dart';
 export 'src/remote_value_service.dart';
 
 Future<void> initializeMonitoringPackage() => Firebase.initializeApp();
diff --git a/08-deep-linking/projects/starter/packages/monitoring/lib/src/explicit_crash.dart b/08-deep-linking/projects/starter/packages/monitoring/lib/src/explicit_crash.dart
new file mode 100644
index 00000000..86864715
--- /dev/null
+++ b/08-deep-linking/projects/starter/packages/monitoring/lib/src/explicit_crash.dart
@@ -0,0 +1,16 @@
+import 'package:firebase_crashlytics/firebase_crashlytics.dart';
+import 'package:flutter/foundation.dart';
+
+class ExplicitCrash {
+  ExplicitCrash({
+    @visibleForTesting FirebaseCrashlytics? crashlytics,
+  }) : _crashlytics = crashlytics ?? FirebaseCrashlytics.instance;
+
+  // 1
+  final FirebaseCrashlytics _crashlytics;
+
+  // 2
+  crashTheApp() {
+    _crashlytics.crash();
+  }
+}
diff --git a/09-internationalizing-and-localizing/projects/final/packages/monitoring/lib/monitoring.dart b/09-internationalizing-and-localizing/projects/final/packages/monitoring/lib/monitoring.dart
index d2d3fba8..f9c72b46 100644
--- a/09-internationalizing-and-localizing/projects/final/packages/monitoring/lib/monitoring.dart
+++ b/09-internationalizing-and-localizing/projects/final/packages/monitoring/lib/monitoring.dart
@@ -3,6 +3,7 @@ import 'package:firebase_core/firebase_core.dart';
 export 'src/dynamic_link_service.dart';
 export 'src/analytics_service.dart';
 export 'src/error_reporting_service.dart';
+export 'src/explicit_crash.dart';
 export 'src/remote_value_service.dart';
 
 Future<void> initializeMonitoringPackage() => Firebase.initializeApp();
diff --git a/09-internationalizing-and-localizing/projects/final/packages/monitoring/lib/src/explicit_crash.dart b/09-internationalizing-and-localizing/projects/final/packages/monitoring/lib/src/explicit_crash.dart
new file mode 100644
index 00000000..86864715
--- /dev/null
+++ b/09-internationalizing-and-localizing/projects/final/packages/monitoring/lib/src/explicit_crash.dart
@@ -0,0 +1,16 @@
+import 'package:firebase_crashlytics/firebase_crashlytics.dart';
+import 'package:flutter/foundation.dart';
+
+class ExplicitCrash {
+  ExplicitCrash({
+    @visibleForTesting FirebaseCrashlytics? crashlytics,
+  }) : _crashlytics = crashlytics ?? FirebaseCrashlytics.instance;
+
+  // 1
+  final FirebaseCrashlytics _crashlytics;
+
+  // 2
+  crashTheApp() {
+    _crashlytics.crash();
+  }
+}
diff --git a/09-internationalizing-and-localizing/projects/starter/packages/monitoring/lib/monitoring.dart b/09-internationalizing-and-localizing/projects/starter/packages/monitoring/lib/monitoring.dart
index d2d3fba8..f9c72b46 100644
--- a/09-internationalizing-and-localizing/projects/starter/packages/monitoring/lib/monitoring.dart
+++ b/09-internationalizing-and-localizing/projects/starter/packages/monitoring/lib/monitoring.dart
@@ -3,6 +3,7 @@ import 'package:firebase_core/firebase_core.dart';
 export 'src/dynamic_link_service.dart';
 export 'src/analytics_service.dart';
 export 'src/error_reporting_service.dart';
+export 'src/explicit_crash.dart';
 export 'src/remote_value_service.dart';
 
 Future<void> initializeMonitoringPackage() => Firebase.initializeApp();
diff --git a/09-internationalizing-and-localizing/projects/starter/packages/monitoring/lib/src/explicit_crash.dart b/09-internationalizing-and-localizing/projects/starter/packages/monitoring/lib/src/explicit_crash.dart
new file mode 100644
index 00000000..86864715
--- /dev/null
+++ b/09-internationalizing-and-localizing/projects/starter/packages/monitoring/lib/src/explicit_crash.dart
@@ -0,0 +1,16 @@
+import 'package:firebase_crashlytics/firebase_crashlytics.dart';
+import 'package:flutter/foundation.dart';
+
+class ExplicitCrash {
+  ExplicitCrash({
+    @visibleForTesting FirebaseCrashlytics? crashlytics,
+  }) : _crashlytics = crashlytics ?? FirebaseCrashlytics.instance;
+
+  // 1
+  final FirebaseCrashlytics _crashlytics;
+
+  // 2
+  crashTheApp() {
+    _crashlytics.crash();
+  }
+}
diff --git a/10-dynamic-theming-and-dark-mode/projects/final/packages/monitoring/lib/monitoring.dart b/10-dynamic-theming-and-dark-mode/projects/final/packages/monitoring/lib/monitoring.dart
index d2d3fba8..f9c72b46 100644
--- a/10-dynamic-theming-and-dark-mode/projects/final/packages/monitoring/lib/monitoring.dart
+++ b/10-dynamic-theming-and-dark-mode/projects/final/packages/monitoring/lib/monitoring.dart
@@ -3,6 +3,7 @@ import 'package:firebase_core/firebase_core.dart';
 export 'src/dynamic_link_service.dart';
 export 'src/analytics_service.dart';
 export 'src/error_reporting_service.dart';
+export 'src/explicit_crash.dart';
 export 'src/remote_value_service.dart';
 
 Future<void> initializeMonitoringPackage() => Firebase.initializeApp();
diff --git a/10-dynamic-theming-and-dark-mode/projects/final/packages/monitoring/lib/src/explicit_crash.dart b/10-dynamic-theming-and-dark-mode/projects/final/packages/monitoring/lib/src/explicit_crash.dart
new file mode 100644
index 00000000..86864715
--- /dev/null
+++ b/10-dynamic-theming-and-dark-mode/projects/final/packages/monitoring/lib/src/explicit_crash.dart
@@ -0,0 +1,16 @@
+import 'package:firebase_crashlytics/firebase_crashlytics.dart';
+import 'package:flutter/foundation.dart';
+
+class ExplicitCrash {
+  ExplicitCrash({
+    @visibleForTesting FirebaseCrashlytics? crashlytics,
+  }) : _crashlytics = crashlytics ?? FirebaseCrashlytics.instance;
+
+  // 1
+  final FirebaseCrashlytics _crashlytics;
+
+  // 2
+  crashTheApp() {
+    _crashlytics.crash();
+  }
+}
diff --git a/10-dynamic-theming-and-dark-mode/projects/starter/packages/monitoring/lib/monitoring.dart b/10-dynamic-theming-and-dark-mode/projects/starter/packages/monitoring/lib/monitoring.dart
index d2d3fba8..f9c72b46 100644
--- a/10-dynamic-theming-and-dark-mode/projects/starter/packages/monitoring/lib/monitoring.dart
+++ b/10-dynamic-theming-and-dark-mode/projects/starter/packages/monitoring/lib/monitoring.dart
@@ -3,6 +3,7 @@ import 'package:firebase_core/firebase_core.dart';
 export 'src/dynamic_link_service.dart';
 export 'src/analytics_service.dart';
 export 'src/error_reporting_service.dart';
+export 'src/explicit_crash.dart';
 export 'src/remote_value_service.dart';
 
 Future<void> initializeMonitoringPackage() => Firebase.initializeApp();
diff --git a/10-dynamic-theming-and-dark-mode/projects/starter/packages/monitoring/lib/src/explicit_crash.dart b/10-dynamic-theming-and-dark-mode/projects/starter/packages/monitoring/lib/src/explicit_crash.dart
new file mode 100644
index 00000000..86864715
--- /dev/null
+++ b/10-dynamic-theming-and-dark-mode/projects/starter/packages/monitoring/lib/src/explicit_crash.dart
@@ -0,0 +1,16 @@
+import 'package:firebase_crashlytics/firebase_crashlytics.dart';
+import 'package:flutter/foundation.dart';
+
+class ExplicitCrash {
+  ExplicitCrash({
+    @visibleForTesting FirebaseCrashlytics? crashlytics,
+  }) : _crashlytics = crashlytics ?? FirebaseCrashlytics.instance;
+
+  // 1
+  final FirebaseCrashlytics _crashlytics;
+
+  // 2
+  crashTheApp() {
+    _crashlytics.crash();
+  }
+}
diff --git a/11-create-your-own-widget-catalog/projects/challenge/packages/monitoring/lib/monitoring.dart b/11-create-your-own-widget-catalog/projects/challenge/packages/monitoring/lib/monitoring.dart
index d2d3fba8..f9c72b46 100644
--- a/11-create-your-own-widget-catalog/projects/challenge/packages/monitoring/lib/monitoring.dart
+++ b/11-create-your-own-widget-catalog/projects/challenge/packages/monitoring/lib/monitoring.dart
@@ -3,6 +3,7 @@ import 'package:firebase_core/firebase_core.dart';
 export 'src/dynamic_link_service.dart';
 export 'src/analytics_service.dart';
 export 'src/error_reporting_service.dart';
+export 'src/explicit_crash.dart';
 export 'src/remote_value_service.dart';
 
 Future<void> initializeMonitoringPackage() => Firebase.initializeApp();
diff --git a/11-create-your-own-widget-catalog/projects/challenge/packages/monitoring/lib/src/explicit_crash.dart b/11-create-your-own-widget-catalog/projects/challenge/packages/monitoring/lib/src/explicit_crash.dart
new file mode 100644
index 00000000..86864715
--- /dev/null
+++ b/11-create-your-own-widget-catalog/projects/challenge/packages/monitoring/lib/src/explicit_crash.dart
@@ -0,0 +1,16 @@
+import 'package:firebase_crashlytics/firebase_crashlytics.dart';
+import 'package:flutter/foundation.dart';
+
+class ExplicitCrash {
+  ExplicitCrash({
+    @visibleForTesting FirebaseCrashlytics? crashlytics,
+  }) : _crashlytics = crashlytics ?? FirebaseCrashlytics.instance;
+
+  // 1
+  final FirebaseCrashlytics _crashlytics;
+
+  // 2
+  crashTheApp() {
+    _crashlytics.crash();
+  }
+}
diff --git a/11-create-your-own-widget-catalog/projects/final/packages/monitoring/lib/monitoring.dart b/11-create-your-own-widget-catalog/projects/final/packages/monitoring/lib/monitoring.dart
index d2d3fba8..f9c72b46 100644
--- a/11-create-your-own-widget-catalog/projects/final/packages/monitoring/lib/monitoring.dart
+++ b/11-create-your-own-widget-catalog/projects/final/packages/monitoring/lib/monitoring.dart
@@ -3,6 +3,7 @@ import 'package:firebase_core/firebase_core.dart';
 export 'src/dynamic_link_service.dart';
 export 'src/analytics_service.dart';
 export 'src/error_reporting_service.dart';
+export 'src/explicit_crash.dart';
 export 'src/remote_value_service.dart';
 
 Future<void> initializeMonitoringPackage() => Firebase.initializeApp();
diff --git a/11-create-your-own-widget-catalog/projects/final/packages/monitoring/lib/src/explicit_crash.dart b/11-create-your-own-widget-catalog/projects/final/packages/monitoring/lib/src/explicit_crash.dart
new file mode 100644
index 00000000..86864715
--- /dev/null
+++ b/11-create-your-own-widget-catalog/projects/final/packages/monitoring/lib/src/explicit_crash.dart
@@ -0,0 +1,16 @@
+import 'package:firebase_crashlytics/firebase_crashlytics.dart';
+import 'package:flutter/foundation.dart';
+
+class ExplicitCrash {
+  ExplicitCrash({
+    @visibleForTesting FirebaseCrashlytics? crashlytics,
+  }) : _crashlytics = crashlytics ?? FirebaseCrashlytics.instance;
+
+  // 1
+  final FirebaseCrashlytics _crashlytics;
+
+  // 2
+  crashTheApp() {
+    _crashlytics.crash();
+  }
+}
diff --git a/11-create-your-own-widget-catalog/projects/starter/packages/monitoring/lib/monitoring.dart b/11-create-your-own-widget-catalog/projects/starter/packages/monitoring/lib/monitoring.dart
index d2d3fba8..f9c72b46 100644
--- a/11-create-your-own-widget-catalog/projects/starter/packages/monitoring/lib/monitoring.dart
+++ b/11-create-your-own-widget-catalog/projects/starter/packages/monitoring/lib/monitoring.dart
@@ -3,6 +3,7 @@ import 'package:firebase_core/firebase_core.dart';
 export 'src/dynamic_link_service.dart';
 export 'src/analytics_service.dart';
 export 'src/error_reporting_service.dart';
+export 'src/explicit_crash.dart';
 export 'src/remote_value_service.dart';
 
 Future<void> initializeMonitoringPackage() => Firebase.initializeApp();
diff --git a/11-create-your-own-widget-catalog/projects/starter/packages/monitoring/lib/src/explicit_crash.dart b/11-create-your-own-widget-catalog/projects/starter/packages/monitoring/lib/src/explicit_crash.dart
new file mode 100644
index 00000000..86864715
--- /dev/null
+++ b/11-create-your-own-widget-catalog/projects/starter/packages/monitoring/lib/src/explicit_crash.dart
@@ -0,0 +1,16 @@
+import 'package:firebase_crashlytics/firebase_crashlytics.dart';
+import 'package:flutter/foundation.dart';
+
+class ExplicitCrash {
+  ExplicitCrash({
+    @visibleForTesting FirebaseCrashlytics? crashlytics,
+  }) : _crashlytics = crashlytics ?? FirebaseCrashlytics.instance;
+
+  // 1
+  final FirebaseCrashlytics _crashlytics;
+
+  // 2
+  crashTheApp() {
+    _crashlytics.crash();
+  }
+}
diff --git a/12-supporting-the-development-lifecycle-with-firebase/projects/final/packages/monitoring/lib/monitoring.dart b/12-supporting-the-development-lifecycle-with-firebase/projects/final/packages/monitoring/lib/monitoring.dart
index d2d3fba8..f9c72b46 100644
--- a/12-supporting-the-development-lifecycle-with-firebase/projects/final/packages/monitoring/lib/monitoring.dart
+++ b/12-supporting-the-development-lifecycle-with-firebase/projects/final/packages/monitoring/lib/monitoring.dart
@@ -3,6 +3,7 @@ import 'package:firebase_core/firebase_core.dart';
 export 'src/dynamic_link_service.dart';
 export 'src/analytics_service.dart';
 export 'src/error_reporting_service.dart';
+export 'src/explicit_crash.dart';
 export 'src/remote_value_service.dart';
 
 Future<void> initializeMonitoringPackage() => Firebase.initializeApp();
diff --git a/12-supporting-the-development-lifecycle-with-firebase/projects/final/packages/monitoring/lib/src/explicit_crash.dart b/12-supporting-the-development-lifecycle-with-firebase/projects/final/packages/monitoring/lib/src/explicit_crash.dart
new file mode 100644
index 00000000..86864715
--- /dev/null
+++ b/12-supporting-the-development-lifecycle-with-firebase/projects/final/packages/monitoring/lib/src/explicit_crash.dart
@@ -0,0 +1,16 @@
+import 'package:firebase_crashlytics/firebase_crashlytics.dart';
+import 'package:flutter/foundation.dart';
+
+class ExplicitCrash {
+  ExplicitCrash({
+    @visibleForTesting FirebaseCrashlytics? crashlytics,
+  }) : _crashlytics = crashlytics ?? FirebaseCrashlytics.instance;
+
+  // 1
+  final FirebaseCrashlytics _crashlytics;
+
+  // 2
+  crashTheApp() {
+    _crashlytics.crash();
+  }
+}
diff --git a/12-supporting-the-development-lifecycle-with-firebase/projects/starter/packages/monitoring/lib/monitoring.dart b/12-supporting-the-development-lifecycle-with-firebase/projects/starter/packages/monitoring/lib/monitoring.dart
index d3382fe4..806b6f85 100644
--- a/12-supporting-the-development-lifecycle-with-firebase/projects/starter/packages/monitoring/lib/monitoring.dart
+++ b/12-supporting-the-development-lifecycle-with-firebase/projects/starter/packages/monitoring/lib/monitoring.dart
@@ -2,8 +2,8 @@ import 'package:firebase_core/firebase_core.dart';
 
 export 'src/dynamic_link_service.dart';
 export 'src/analytics_service.dart';
-export 'src/explicit_crash.dart';
 // TODO: export error_reporting_service.dart file
+export 'src/explicit_crash.dart';
 export 'src/remote_value_service.dart';
 
 Future<void> initializeMonitoringPackage() => Firebase.initializeApp();
diff --git a/13-running-live-experiments-with-a-b-testing-and-feature-flags/project/final/packages/monitoring/lib/monitoring.dart b/13-running-live-experiments-with-a-b-testing-and-feature-flags/project/final/packages/monitoring/lib/monitoring.dart
index d2d3fba8..f9c72b46 100644
--- a/13-running-live-experiments-with-a-b-testing-and-feature-flags/project/final/packages/monitoring/lib/monitoring.dart
+++ b/13-running-live-experiments-with-a-b-testing-and-feature-flags/project/final/packages/monitoring/lib/monitoring.dart
@@ -3,6 +3,7 @@ import 'package:firebase_core/firebase_core.dart';
 export 'src/dynamic_link_service.dart';
 export 'src/analytics_service.dart';
 export 'src/error_reporting_service.dart';
+export 'src/explicit_crash.dart';
 export 'src/remote_value_service.dart';
 
 Future<void> initializeMonitoringPackage() => Firebase.initializeApp();
diff --git a/13-running-live-experiments-with-a-b-testing-and-feature-flags/project/final/packages/monitoring/lib/src/explicit_crash.dart b/13-running-live-experiments-with-a-b-testing-and-feature-flags/project/final/packages/monitoring/lib/src/explicit_crash.dart
new file mode 100644
index 00000000..86864715
--- /dev/null
+++ b/13-running-live-experiments-with-a-b-testing-and-feature-flags/project/final/packages/monitoring/lib/src/explicit_crash.dart
@@ -0,0 +1,16 @@
+import 'package:firebase_crashlytics/firebase_crashlytics.dart';
+import 'package:flutter/foundation.dart';
+
+class ExplicitCrash {
+  ExplicitCrash({
+    @visibleForTesting FirebaseCrashlytics? crashlytics,
+  }) : _crashlytics = crashlytics ?? FirebaseCrashlytics.instance;
+
+  // 1
+  final FirebaseCrashlytics _crashlytics;
+
+  // 2
+  crashTheApp() {
+    _crashlytics.crash();
+  }
+}
diff --git a/13-running-live-experiments-with-a-b-testing-and-feature-flags/project/starter/packages/monitoring/lib/monitoring.dart b/13-running-live-experiments-with-a-b-testing-and-feature-flags/project/starter/packages/monitoring/lib/monitoring.dart
index d2d3fba8..f9c72b46 100644
--- a/13-running-live-experiments-with-a-b-testing-and-feature-flags/project/starter/packages/monitoring/lib/monitoring.dart
+++ b/13-running-live-experiments-with-a-b-testing-and-feature-flags/project/starter/packages/monitoring/lib/monitoring.dart
@@ -3,6 +3,7 @@ import 'package:firebase_core/firebase_core.dart';
 export 'src/dynamic_link_service.dart';
 export 'src/analytics_service.dart';
 export 'src/error_reporting_service.dart';
+export 'src/explicit_crash.dart';
 export 'src/remote_value_service.dart';
 
 Future<void> initializeMonitoringPackage() => Firebase.initializeApp();
diff --git a/13-running-live-experiments-with-a-b-testing-and-feature-flags/project/starter/packages/monitoring/lib/src/explicit_crash.dart b/13-running-live-experiments-with-a-b-testing-and-feature-flags/project/starter/packages/monitoring/lib/src/explicit_crash.dart
new file mode 100644
index 00000000..86864715
--- /dev/null
+++ b/13-running-live-experiments-with-a-b-testing-and-feature-flags/project/starter/packages/monitoring/lib/src/explicit_crash.dart
@@ -0,0 +1,16 @@
+import 'package:firebase_crashlytics/firebase_crashlytics.dart';
+import 'package:flutter/foundation.dart';
+
+class ExplicitCrash {
+  ExplicitCrash({
+    @visibleForTesting FirebaseCrashlytics? crashlytics,
+  }) : _crashlytics = crashlytics ?? FirebaseCrashlytics.instance;
+
+  // 1
+  final FirebaseCrashlytics _crashlytics;
+
+  // 2
+  crashTheApp() {
+    _crashlytics.crash();
+  }
+}
diff --git a/14-automated-testing/projects/challenge/packages/monitoring/lib/monitoring.dart b/14-automated-testing/projects/challenge/packages/monitoring/lib/monitoring.dart
index d2d3fba8..f9c72b46 100644
--- a/14-automated-testing/projects/challenge/packages/monitoring/lib/monitoring.dart
+++ b/14-automated-testing/projects/challenge/packages/monitoring/lib/monitoring.dart
@@ -3,6 +3,7 @@ import 'package:firebase_core/firebase_core.dart';
 export 'src/dynamic_link_service.dart';
 export 'src/analytics_service.dart';
 export 'src/error_reporting_service.dart';
+export 'src/explicit_crash.dart';
 export 'src/remote_value_service.dart';
 
 Future<void> initializeMonitoringPackage() => Firebase.initializeApp();
diff --git a/14-automated-testing/projects/challenge/packages/monitoring/lib/src/explicit_crash.dart b/14-automated-testing/projects/challenge/packages/monitoring/lib/src/explicit_crash.dart
new file mode 100644
index 00000000..86864715
--- /dev/null
+++ b/14-automated-testing/projects/challenge/packages/monitoring/lib/src/explicit_crash.dart
@@ -0,0 +1,16 @@
+import 'package:firebase_crashlytics/firebase_crashlytics.dart';
+import 'package:flutter/foundation.dart';
+
+class ExplicitCrash {
+  ExplicitCrash({
+    @visibleForTesting FirebaseCrashlytics? crashlytics,
+  }) : _crashlytics = crashlytics ?? FirebaseCrashlytics.instance;
+
+  // 1
+  final FirebaseCrashlytics _crashlytics;
+
+  // 2
+  crashTheApp() {
+    _crashlytics.crash();
+  }
+}
diff --git a/14-automated-testing/projects/final/packages/monitoring/lib/monitoring.dart b/14-automated-testing/projects/final/packages/monitoring/lib/monitoring.dart
index d2d3fba8..f9c72b46 100644
--- a/14-automated-testing/projects/final/packages/monitoring/lib/monitoring.dart
+++ b/14-automated-testing/projects/final/packages/monitoring/lib/monitoring.dart
@@ -3,6 +3,7 @@ import 'package:firebase_core/firebase_core.dart';
 export 'src/dynamic_link_service.dart';
 export 'src/analytics_service.dart';
 export 'src/error_reporting_service.dart';
+export 'src/explicit_crash.dart';
 export 'src/remote_value_service.dart';
 
 Future<void> initializeMonitoringPackage() => Firebase.initializeApp();
diff --git a/14-automated-testing/projects/final/packages/monitoring/lib/src/explicit_crash.dart b/14-automated-testing/projects/final/packages/monitoring/lib/src/explicit_crash.dart
new file mode 100644
index 00000000..86864715
--- /dev/null
+++ b/14-automated-testing/projects/final/packages/monitoring/lib/src/explicit_crash.dart
@@ -0,0 +1,16 @@
+import 'package:firebase_crashlytics/firebase_crashlytics.dart';
+import 'package:flutter/foundation.dart';
+
+class ExplicitCrash {
+  ExplicitCrash({
+    @visibleForTesting FirebaseCrashlytics? crashlytics,
+  }) : _crashlytics = crashlytics ?? FirebaseCrashlytics.instance;
+
+  // 1
+  final FirebaseCrashlytics _crashlytics;
+
+  // 2
+  crashTheApp() {
+    _crashlytics.crash();
+  }
+}
diff --git a/14-automated-testing/projects/starter/packages/monitoring/lib/monitoring.dart b/14-automated-testing/projects/starter/packages/monitoring/lib/monitoring.dart
index d2d3fba8..f9c72b46 100644
--- a/14-automated-testing/projects/starter/packages/monitoring/lib/monitoring.dart
+++ b/14-automated-testing/projects/starter/packages/monitoring/lib/monitoring.dart
@@ -3,6 +3,7 @@ import 'package:firebase_core/firebase_core.dart';
 export 'src/dynamic_link_service.dart';
 export 'src/analytics_service.dart';
 export 'src/error_reporting_service.dart';
+export 'src/explicit_crash.dart';
 export 'src/remote_value_service.dart';
 
 Future<void> initializeMonitoringPackage() => Firebase.initializeApp();
diff --git a/14-automated-testing/projects/starter/packages/monitoring/lib/src/explicit_crash.dart b/14-automated-testing/projects/starter/packages/monitoring/lib/src/explicit_crash.dart
new file mode 100644
index 00000000..86864715
--- /dev/null
+++ b/14-automated-testing/projects/starter/packages/monitoring/lib/src/explicit_crash.dart
@@ -0,0 +1,16 @@
+import 'package:firebase_crashlytics/firebase_crashlytics.dart';
+import 'package:flutter/foundation.dart';
+
+class ExplicitCrash {
+  ExplicitCrash({
+    @visibleForTesting FirebaseCrashlytics? crashlytics,
+  }) : _crashlytics = crashlytics ?? FirebaseCrashlytics.instance;
+
+  // 1
+  final FirebaseCrashlytics _crashlytics;
+
+  // 2
+  crashTheApp() {
+    _crashlytics.crash();
+  }
+}
diff --git a/15-automating-test-executions-and-build-distributions/projects/final/packages/monitoring/lib/monitoring.dart b/15-automating-test-executions-and-build-distributions/projects/final/packages/monitoring/lib/monitoring.dart
index d2d3fba8..f9c72b46 100644
--- a/15-automating-test-executions-and-build-distributions/projects/final/packages/monitoring/lib/monitoring.dart
+++ b/15-automating-test-executions-and-build-distributions/projects/final/packages/monitoring/lib/monitoring.dart
@@ -3,6 +3,7 @@ import 'package:firebase_core/firebase_core.dart';
 export 'src/dynamic_link_service.dart';
 export 'src/analytics_service.dart';
 export 'src/error_reporting_service.dart';
+export 'src/explicit_crash.dart';
 export 'src/remote_value_service.dart';
 
 Future<void> initializeMonitoringPackage() => Firebase.initializeApp();
diff --git a/15-automating-test-executions-and-build-distributions/projects/final/packages/monitoring/lib/src/explicit_crash.dart b/15-automating-test-executions-and-build-distributions/projects/final/packages/monitoring/lib/src/explicit_crash.dart
new file mode 100644
index 00000000..86864715
--- /dev/null
+++ b/15-automating-test-executions-and-build-distributions/projects/final/packages/monitoring/lib/src/explicit_crash.dart
@@ -0,0 +1,16 @@
+import 'package:firebase_crashlytics/firebase_crashlytics.dart';
+import 'package:flutter/foundation.dart';
+
+class ExplicitCrash {
+  ExplicitCrash({
+    @visibleForTesting FirebaseCrashlytics? crashlytics,
+  }) : _crashlytics = crashlytics ?? FirebaseCrashlytics.instance;
+
+  // 1
+  final FirebaseCrashlytics _crashlytics;
+
+  // 2
+  crashTheApp() {
+    _crashlytics.crash();
+  }
+}
diff --git a/15-automating-test-executions-and-build-distributions/projects/starter/packages/monitoring/lib/monitoring.dart b/15-automating-test-executions-and-build-distributions/projects/starter/packages/monitoring/lib/monitoring.dart
index d2d3fba8..f9c72b46 100644
--- a/15-automating-test-executions-and-build-distributions/projects/starter/packages/monitoring/lib/monitoring.dart
+++ b/15-automating-test-executions-and-build-distributions/projects/starter/packages/monitoring/lib/monitoring.dart
@@ -3,6 +3,7 @@ import 'package:firebase_core/firebase_core.dart';
 export 'src/dynamic_link_service.dart';
 export 'src/analytics_service.dart';
 export 'src/error_reporting_service.dart';
+export 'src/explicit_crash.dart';
 export 'src/remote_value_service.dart';
 
 Future<void> initializeMonitoringPackage() => Firebase.initializeApp();
diff --git a/15-automating-test-executions-and-build-distributions/projects/starter/packages/monitoring/lib/src/explicit_crash.dart b/15-automating-test-executions-and-build-distributions/projects/starter/packages/monitoring/lib/src/explicit_crash.dart
new file mode 100644
index 00000000..86864715
--- /dev/null
+++ b/15-automating-test-executions-and-build-distributions/projects/starter/packages/monitoring/lib/src/explicit_crash.dart
@@ -0,0 +1,16 @@
+import 'package:firebase_crashlytics/firebase_crashlytics.dart';
+import 'package:flutter/foundation.dart';
+
+class ExplicitCrash {
+  ExplicitCrash({
+    @visibleForTesting FirebaseCrashlytics? crashlytics,
+  }) : _crashlytics = crashlytics ?? FirebaseCrashlytics.instance;
+
+  // 1
+  final FirebaseCrashlytics _crashlytics;
+
+  // 2
+  crashTheApp() {
+    _crashlytics.crash();
+  }
+}