diff --git a/.github/workflows/ci_build.yml b/.github/workflows/ci_build.yml
index 2e49d6e5..fafcaa44 100644
--- a/.github/workflows/ci_build.yml
+++ b/.github/workflows/ci_build.yml
@@ -44,6 +44,7 @@ jobs:
         run: "composer cs-check"
       - name: "Code analyze"
         run: |
+          bin/structarmed analyze
           composer phpstan
           bin/rector process --dry-run
       - name: "Run test suite (no coverage)"
diff --git a/composer.json b/composer.json
index 7640ba48..61c5cf58 100644
--- a/composer.json
+++ b/composer.json
@@ -56,6 +56,7 @@
         "laminas/laminas-mvc-console": "*"
     },
     "require-dev": {
+        "boundwize/structarmed": "^0.1.1",
         "doctrine/dbal": "^3.10.4",
         "doctrine/doctrine-orm-module": "^6.3.0",
         "guzzlehttp/promises": "^2.3",
diff --git a/config/module.config.php b/config/module.config.php
index 2e1ab484..2f92c5d6 100644
--- a/config/module.config.php
+++ b/config/module.config.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace ErrorHeroModule;
 
 use ErrorHeroModule\Command\BaseLoggingCommandInitializer;
diff --git a/spec/Fixture/config/autoload-for-cannot-connect-to-db/error-hero-module.local.php b/spec/Fixture/config/autoload-for-cannot-connect-to-db/error-hero-module.local.php
index 941b64c8..927305e2 100644
--- a/spec/Fixture/config/autoload-for-cannot-connect-to-db/error-hero-module.local.php
+++ b/spec/Fixture/config/autoload-for-cannot-connect-to-db/error-hero-module.local.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 use Pdo\Mysql;
 use Laminas\Db\Adapter\AdapterInterface;
 use Laminas\Mail\Message;
diff --git a/spec/Fixture/config/autoload-for-enable-display-errors/error-hero-module.local.php b/spec/Fixture/config/autoload-for-enable-display-errors/error-hero-module.local.php
index f9066bf4..cd196f17 100644
--- a/spec/Fixture/config/autoload-for-enable-display-errors/error-hero-module.local.php
+++ b/spec/Fixture/config/autoload-for-enable-display-errors/error-hero-module.local.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 use Pdo\Mysql;
 use Laminas\Db\Adapter\AdapterInterface;
 use Laminas\Mail\Message;
diff --git a/spec/Fixture/config/autoload-for-specific-error-and-exception/error-hero-module.local.php b/spec/Fixture/config/autoload-for-specific-error-and-exception/error-hero-module.local.php
index 077a3794..5b28c1f9 100644
--- a/spec/Fixture/config/autoload-for-specific-error-and-exception/error-hero-module.local.php
+++ b/spec/Fixture/config/autoload-for-specific-error-and-exception/error-hero-module.local.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 use Pdo\Mysql;
 use Laminas\Db\Adapter\AdapterInterface;
 
diff --git a/spec/Fixture/config/autoload-for-xmlhttprequest-with-non-json-message/error-hero-module.local.php b/spec/Fixture/config/autoload-for-xmlhttprequest-with-non-json-message/error-hero-module.local.php
index 399e35e5..1ee6d4eb 100644
--- a/spec/Fixture/config/autoload-for-xmlhttprequest-with-non-json-message/error-hero-module.local.php
+++ b/spec/Fixture/config/autoload-for-xmlhttprequest-with-non-json-message/error-hero-module.local.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 use Pdo\Mysql;
 use Laminas\Db\Adapter\AdapterInterface;
 
diff --git a/spec/Fixture/config/autoload-for-xmlhttprequest/error-hero-module.local.php b/spec/Fixture/config/autoload-for-xmlhttprequest/error-hero-module.local.php
index 0160398d..86f69260 100644
--- a/spec/Fixture/config/autoload-for-xmlhttprequest/error-hero-module.local.php
+++ b/spec/Fixture/config/autoload-for-xmlhttprequest/error-hero-module.local.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 use Pdo\Mysql;
 use Laminas\Db\Adapter\AdapterInterface;
 
diff --git a/spec/Fixture/config/autoload-with-doctrine/error-hero-module.local.php b/spec/Fixture/config/autoload-with-doctrine/error-hero-module.local.php
index e9b4c674..53a7ca3d 100644
--- a/spec/Fixture/config/autoload-with-doctrine/error-hero-module.local.php
+++ b/spec/Fixture/config/autoload-with-doctrine/error-hero-module.local.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 use Pdo\Mysql;
 use Doctrine\DBAL\Driver\PDO\MySql\Driver;
 use Laminas\Db\Adapter\AdapterInterface;
diff --git a/spec/Fixture/config/autoload-with-enable-sendmail-with-empty-email-receivers/error-hero-module.local.php b/spec/Fixture/config/autoload-with-enable-sendmail-with-empty-email-receivers/error-hero-module.local.php
index bfbbf46e..ef19414a 100644
--- a/spec/Fixture/config/autoload-with-enable-sendmail-with-empty-email-receivers/error-hero-module.local.php
+++ b/spec/Fixture/config/autoload-with-enable-sendmail-with-empty-email-receivers/error-hero-module.local.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 use Pdo\Mysql;
 use Laminas\Db\Adapter\AdapterInterface;
 use Laminas\Mail\Message;
diff --git a/spec/Fixture/config/autoload-with-enable-sendmail/error-hero-module.local.php b/spec/Fixture/config/autoload-with-enable-sendmail/error-hero-module.local.php
index 593d6857..12a938ac 100644
--- a/spec/Fixture/config/autoload-with-enable-sendmail/error-hero-module.local.php
+++ b/spec/Fixture/config/autoload-with-enable-sendmail/error-hero-module.local.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 use Pdo\Mysql;
 use Laminas\Db\Adapter\AdapterInterface;
 use Laminas\Mail\Message;
diff --git a/spec/Fixture/config/autoload/error-hero-module.local.php b/spec/Fixture/config/autoload/error-hero-module.local.php
index 1f572ff0..0ba1fc5f 100644
--- a/spec/Fixture/config/autoload/error-hero-module.local.php
+++ b/spec/Fixture/config/autoload/error-hero-module.local.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace ErrorHeroModule\Spec\Fixture\config\autoload;
 
 use Pdo\Mysql;
diff --git a/spec/Fixture/config/module.local.php b/spec/Fixture/config/module.local.php
index 034e6297..57a9ffbe 100644
--- a/spec/Fixture/config/module.local.php
+++ b/spec/Fixture/config/module.local.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace ErrorHeroModule\Spec\Fixture\config;
 
 use ErrorHeroModule\Controller\ErrorPreviewController;
diff --git a/src/Handler/Writer/Mail.php b/src/Handler/Writer/Mail.php
index 1250cbeb..79812f52 100644
--- a/src/Handler/Writer/Mail.php
+++ b/src/Handler/Writer/Mail.php
@@ -25,6 +25,9 @@
 use const E_USER_WARNING;
 use const PHP_EOL;
 
+/**
+ * @property-read array<string> $eventsToMail
+ */
 final class Mail extends BaseMail
 {
     private const string NAME = 'name';
diff --git a/structarmed.php b/structarmed.php
new file mode 100644
index 00000000..2cd501fd
--- /dev/null
+++ b/structarmed.php
@@ -0,0 +1,9 @@
+<?php
+
+declare(strict_types=1);
+
+use Boundwize\StructArmed\Architecture;
+use Boundwize\StructArmed\Preset\Preset;
+
+return Architecture::define()
+    ->withPreset(Preset::PSR4());