diff --git a/src/app/Http/Controllers/Controller.php b/src/app/Http/Controllers/Controller.php
index 8677cd5..e2af3d2 100644
--- a/src/app/Http/Controllers/Controller.php
+++ b/src/app/Http/Controllers/Controller.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace App\Http\Controllers;
 
 abstract class Controller
diff --git a/src/app/Models/User.php b/src/app/Models/User.php
index def621f..3220200 100644
--- a/src/app/Models/User.php
+++ b/src/app/Models/User.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace App\Models;
 
 // use Illuminate\Contracts\Auth\MustVerifyEmail;
@@ -7,7 +9,7 @@
 use Illuminate\Foundation\Auth\User as Authenticatable;
 use Illuminate\Notifications\Notifiable;
 
-class User extends Authenticatable
+final class User extends Authenticatable
 {
     use HasFactory, Notifiable;
 
diff --git a/src/app/Providers/AppServiceProvider.php b/src/app/Providers/AppServiceProvider.php
index 452e6b6..314734d 100644
--- a/src/app/Providers/AppServiceProvider.php
+++ b/src/app/Providers/AppServiceProvider.php
@@ -1,10 +1,12 @@
 <?php
 
+declare(strict_types=1);
+
 namespace App\Providers;
 
 use Illuminate\Support\ServiceProvider;
 
-class AppServiceProvider extends ServiceProvider
+final class AppServiceProvider extends ServiceProvider
 {
     /**
      * Register any application services.
diff --git a/src/bootstrap/app.php b/src/bootstrap/app.php
index 7b162da..67217e7 100644
--- a/src/bootstrap/app.php
+++ b/src/bootstrap/app.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 use Illuminate\Foundation\Application;
 use Illuminate\Foundation\Configuration\Exceptions;
 use Illuminate\Foundation\Configuration\Middleware;
diff --git a/src/bootstrap/providers.php b/src/bootstrap/providers.php
index 38b258d..84c7d4d 100644
--- a/src/bootstrap/providers.php
+++ b/src/bootstrap/providers.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 return [
     App\Providers\AppServiceProvider::class,
 ];
diff --git a/src/config/app.php b/src/config/app.php
index f467267..706439d 100644
--- a/src/config/app.php
+++ b/src/config/app.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 return [
 
     /*
diff --git a/src/config/auth.php b/src/config/auth.php
index 0ba5d5d..2ce066d 100644
--- a/src/config/auth.php
+++ b/src/config/auth.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 return [
 
     /*
diff --git a/src/config/cache.php b/src/config/cache.php
index 3868091..e16a5fa 100644
--- a/src/config/cache.php
+++ b/src/config/cache.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 use Illuminate\Support\Str;
 
 return [
diff --git a/src/config/database.php b/src/config/database.php
index f8e8dcb..3cb08cc 100644
--- a/src/config/database.php
+++ b/src/config/database.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 use Illuminate\Support\Str;
 
 return [
diff --git a/src/config/filesystems.php b/src/config/filesystems.php
index 44fe9c8..8e0fc58 100644
--- a/src/config/filesystems.php
+++ b/src/config/filesystems.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 return [
 
     /*
diff --git a/src/config/logging.php b/src/config/logging.php
index d526b64..54b1e22 100644
--- a/src/config/logging.php
+++ b/src/config/logging.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 use Monolog\Handler\NullHandler;
 use Monolog\Handler\StreamHandler;
 use Monolog\Handler\SyslogUdpHandler;
diff --git a/src/config/mail.php b/src/config/mail.php
index 8666659..efe450d 100644
--- a/src/config/mail.php
+++ b/src/config/mail.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 return [
 
     /*
diff --git a/src/config/queue.php b/src/config/queue.php
index 116bd8d..8829481 100644
--- a/src/config/queue.php
+++ b/src/config/queue.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 return [
 
     /*
diff --git a/src/config/services.php b/src/config/services.php
index 6bb68f6..dc942ea 100644
--- a/src/config/services.php
+++ b/src/config/services.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 return [
 
     /*
diff --git a/src/config/session.php b/src/config/session.php
index f0b6541..2d82fa8 100644
--- a/src/config/session.php
+++ b/src/config/session.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 use Illuminate\Support\Str;
 
 return [
diff --git a/src/database/factories/UserFactory.php b/src/database/factories/UserFactory.php
index 584104c..1b73ff5 100644
--- a/src/database/factories/UserFactory.php
+++ b/src/database/factories/UserFactory.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Database\Factories;
 
 use Illuminate\Database\Eloquent\Factories\Factory;
@@ -9,7 +11,7 @@
 /**
  * @extends \Illuminate\Database\Eloquent\Factories\Factory<\App\Models\User>
  */
-class UserFactory extends Factory
+final class UserFactory extends Factory
 {
     /**
      * The current password being used by the factory.
@@ -27,7 +29,7 @@ public function definition(): array
             'name' => fake()->name(),
             'email' => fake()->unique()->safeEmail(),
             'email_verified_at' => now(),
-            'password' => static::$password ??= Hash::make('password'),
+            'password' => self::$password ??= Hash::make('password'),
             'remember_token' => Str::random(10),
         ];
     }
diff --git a/src/database/seeders/DatabaseSeeder.php b/src/database/seeders/DatabaseSeeder.php
index d01a0ef..b275081 100644
--- a/src/database/seeders/DatabaseSeeder.php
+++ b/src/database/seeders/DatabaseSeeder.php
@@ -1,12 +1,14 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Database\Seeders;
 
 use App\Models\User;
 // use Illuminate\Database\Console\Seeds\WithoutModelEvents;
 use Illuminate\Database\Seeder;
 
-class DatabaseSeeder extends Seeder
+final class DatabaseSeeder extends Seeder
 {
     /**
      * Seed the application's database.
diff --git a/src/public/index.php b/src/public/index.php
index 947d989..d55a3b2 100644
--- a/src/public/index.php
+++ b/src/public/index.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 use Illuminate\Http\Request;
 
 define('LARAVEL_START', microtime(true));
diff --git a/src/routes/console.php b/src/routes/console.php
index eff2ed2..12eea61 100644
--- a/src/routes/console.php
+++ b/src/routes/console.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 use Illuminate\Foundation\Inspiring;
 use Illuminate\Support\Facades\Artisan;
 
diff --git a/src/routes/web.php b/src/routes/web.php
index 86a06c5..7bceeaf 100644
--- a/src/routes/web.php
+++ b/src/routes/web.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 use Illuminate\Support\Facades\Route;
 
 Route::get('/', function () {
diff --git a/src/tests/Feature/ExampleTest.php b/src/tests/Feature/ExampleTest.php
index 8364a84..f4b5179 100644
--- a/src/tests/Feature/ExampleTest.php
+++ b/src/tests/Feature/ExampleTest.php
@@ -1,11 +1,13 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Tests\Feature;
 
 // use Illuminate\Foundation\Testing\RefreshDatabase;
 use Tests\TestCase;
 
-class ExampleTest extends TestCase
+final class ExampleTest extends TestCase
 {
     /**
      * A basic test example.
diff --git a/src/tests/TestCase.php b/src/tests/TestCase.php
index fe1ffc2..6ac0072 100644
--- a/src/tests/TestCase.php
+++ b/src/tests/TestCase.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Tests;
 
 use Illuminate\Foundation\Testing\TestCase as BaseTestCase;
diff --git a/src/tests/Unit/ExampleTest.php b/src/tests/Unit/ExampleTest.php
index 5773b0c..2a3cf02 100644
--- a/src/tests/Unit/ExampleTest.php
+++ b/src/tests/Unit/ExampleTest.php
@@ -1,10 +1,12 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Tests\Unit;
 
 use PHPUnit\Framework\TestCase;
 
-class ExampleTest extends TestCase
+final class ExampleTest extends TestCase
 {
     /**
      * A basic test example.