diff --git a/README.md b/README.md
index 8e97b43..022d3f2 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,7 @@
-# MicroMapper: The Tiny, Underwhelming Data Mapper
+# MicroMapper: The Tiny, Underwhelming Data Mapper for Symfony!
 
 Need to map one object (e.g. a Doctrine entity) to another
-object (e.g. a DTO) and love writing the mapping code manually?
+object (e.g. a DTO) and *love* writing the mapping code manually?
 Then this library is for you!
 
 Define a "mapper" class:
@@ -50,15 +50,15 @@ With MicroMapper, *you* do the heavy lifting. Let's review with a table!
 | Some of the mapping is automatic | ❌           | ✅                 |
 | Extensible                       | ✅           | ✅                 |
 | Handles nested objects           | ✅           | ✅                 |
-| Small & Dead-simple              | ✅           | (not SO simple    |
+| Small & Dead-simple              | ✅           | (not SO simple)   |
 
-## Support Us & Symfony
+## Support us & Symfony
 
-Finding this package useful! We're *thrilled* 😍!
+Is this package useful! We're *thrilled* 😍!
 
 A lot of time & effort from the Symfonycasts team & the Symfony community
-goes into creating and maintaining these packages. You can support us and
-Symfony by grabbing a subscription to [SymfonyCasts](https://symfonycasts.com)!
+goes into creating and maintaining these packages. You can support us +
+Symfony (and learn a bucket-load) by grabbing a subscription to [SymfonyCasts](https://symfonycasts.com)!
 
 ## Installation
 
diff --git a/src/AsMapper.php b/src/AsMapper.php
index 4a221c1..b296964 100644
--- a/src/AsMapper.php
+++ b/src/AsMapper.php
@@ -1,5 +1,12 @@
 <?php
 
+/*
+ * This file is part of the SymfonyCasts MicroMapper package.
+ * Copyright (c) SymfonyCasts <https://symfonycasts.com/>
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace Symfonycasts\MicroMapper;
 
 /**
@@ -15,8 +22,7 @@ class AsMapper
     public function __construct(
         private string $from,
         private string $to,
-    )
-    {
+    ) {
     }
 
     public function getFrom(): string
diff --git a/src/Bundle/DependencyInjection/MicroMapperCompilerPass.php b/src/Bundle/DependencyInjection/MicroMapperCompilerPass.php
index de89585..848f861 100644
--- a/src/Bundle/DependencyInjection/MicroMapperCompilerPass.php
+++ b/src/Bundle/DependencyInjection/MicroMapperCompilerPass.php
@@ -1,5 +1,12 @@
 <?php
 
+/*
+ * This file is part of the SymfonyCasts MicroMapper package.
+ * Copyright (c) SymfonyCasts <https://symfonycasts.com/>
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace Symfonycasts\MicroMapper\Bundle\DependencyInjection;
 
 use Symfony\Component\DependencyInjection\Argument\ServiceClosureArgument;
@@ -22,7 +29,7 @@ public function process(ContainerBuilder $container): void
                 $mapperConfigDefinitions[] = new Definition(MapperConfig::class, [
                     $tag['from'],
                     $tag['to'],
-                    new ServiceClosureArgument(new Reference($id))
+                    new ServiceClosureArgument(new Reference($id)),
                 ]);
             }
         }
diff --git a/src/Bundle/DependencyInjection/MicroMapperExtension.php b/src/Bundle/DependencyInjection/MicroMapperExtension.php
index c5969cd..a281d42 100644
--- a/src/Bundle/DependencyInjection/MicroMapperExtension.php
+++ b/src/Bundle/DependencyInjection/MicroMapperExtension.php
@@ -1,5 +1,12 @@
 <?php
 
+/*
+ * This file is part of the SymfonyCasts MicroMapper package.
+ * Copyright (c) SymfonyCasts <https://symfonycasts.com/>
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace Symfonycasts\MicroMapper\Bundle\DependencyInjection;
 
 use Symfony\Component\Config\Definition\Builder\ArrayNodeDefinition;
diff --git a/src/Bundle/config/services.php b/src/Bundle/config/services.php
index 1838e9d..4a83978 100644
--- a/src/Bundle/config/services.php
+++ b/src/Bundle/config/services.php
@@ -1,9 +1,16 @@
 <?php
 
-use Symfony\Component\DependencyInjection\Loader\Configurator\ContainerConfigurator;
+/*
+ * This file is part of the SymfonyCasts MicroMapper package.
+ * Copyright (c) SymfonyCasts <https://symfonycasts.com/>
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
 
+use Symfony\Component\DependencyInjection\Loader\Configurator\ContainerConfigurator;
 use Symfonycasts\MicroMapper\MicroMapper;
 use Symfonycasts\MicroMapper\MicroMapperInterface;
+
 use function Symfony\Component\DependencyInjection\Loader\Configurator\abstract_arg;
 
 return static function (ContainerConfigurator $container): void {
diff --git a/src/MapperConfig.php b/src/MapperConfig.php
index 8a43f03..fdf7c0f 100644
--- a/src/MapperConfig.php
+++ b/src/MapperConfig.php
@@ -1,5 +1,12 @@
 <?php
 
+/*
+ * This file is part of the SymfonyCasts MicroMapper package.
+ * Copyright (c) SymfonyCasts <https://symfonycasts.com/>
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace Symfonycasts\MicroMapper;
 
 /**
@@ -11,8 +18,7 @@ public function __construct(
         private string $fromClass,
         private string $toClass,
         private \Closure $mapper
-    )
-    {
+    ) {
     }
 
     public function supports(object $fromObject, string $targetClass): bool
diff --git a/src/MapperInterface.php b/src/MapperInterface.php
index c7f12c3..6da1a6a 100644
--- a/src/MapperInterface.php
+++ b/src/MapperInterface.php
@@ -1,5 +1,12 @@
 <?php
 
+/*
+ * This file is part of the SymfonyCasts MicroMapper package.
+ * Copyright (c) SymfonyCasts <https://symfonycasts.com/>
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace Symfonycasts\MicroMapper;
 
 /**
diff --git a/src/MicroMapper.php b/src/MicroMapper.php
index 2a84c90..22551f1 100644
--- a/src/MicroMapper.php
+++ b/src/MicroMapper.php
@@ -1,5 +1,12 @@
 <?php
 
+/*
+ * This file is part of the SymfonyCasts MicroMapper package.
+ * Copyright (c) SymfonyCasts <https://symfonycasts.com/>
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace Symfonycasts\MicroMapper;
 
 /**
@@ -26,7 +33,7 @@ public function addMapperConfig(MapperConfig $mapperConfig): void
 
     public function map(object $from, string $toClass, array $context = []): object
     {
-        $this->currentDepth++;
+        ++$this->currentDepth;
 
         if ($this->currentDepth > 50) {
             throw new \Exception('Max depth reached');
@@ -41,19 +48,16 @@ public function map(object $from, string $toClass, array $context = []): object
             $this->maxDepth = $context[self::MAX_DEPTH] + $this->currentDepth;
         }
 
-        $shouldFullyPopulate = $this->maxDepth === null || $this->currentDepth < $this->maxDepth;
+        $shouldFullyPopulate = null === $this->maxDepth || $this->currentDepth < $this->maxDepth;
 
         // watch for circular references, but only if we're fully populating
         // if we are not fully populating, this is already the final depth/level
         // through the micro mapper.
         if (isset($this->objectHashes[spl_object_hash($from)]) && $shouldFullyPopulate) {
-            throw new \Exception(sprintf(
-                'Circular reference detected with micro mapper: %s. Try passing [MicroMapperInterface::MAX_DEPTH => 1] when mapping relationships.',
-                implode(' -> ', array_merge($this->objectHashes, [get_class($from)]))
-            ));
+            throw new \Exception(sprintf('Circular reference detected with micro mapper: %s. Try passing [MicroMapperInterface::MAX_DEPTH => 1] when mapping relationships.', implode(' -> ', array_merge($this->objectHashes, [$from::class]))));
         }
 
-        $this->objectHashes[spl_object_hash($from)] = get_class($from);
+        $this->objectHashes[spl_object_hash($from)] = $from::class;
 
         foreach ($this->mapperConfigs as $mapperConfig) {
             if (!$mapperConfig->supports($from, $toClass)) {
@@ -63,17 +67,17 @@ public function map(object $from, string $toClass, array $context = []): object
             $toObject = $mapperConfig->getMapper()->load($from, $toClass, $context);
 
             // avoid fully populated objects if max depth is reached
-            if ($this->maxDepth === null || $this->currentDepth < $this->maxDepth) {
+            if (null === $this->maxDepth || $this->currentDepth < $this->maxDepth) {
                 $mapperConfig->getMapper()->populate($from, $toObject, $context);
             }
 
             unset($this->objectHashes[spl_object_hash($from)]);
-            $this->currentDepth--;
+            --$this->currentDepth;
             $this->maxDepth = $previousMaxDepth;
 
             return $toObject;
         }
 
-        throw new \Exception(sprintf('No mapper found for %s -> %s', get_class($from), $toClass));
+        throw new \Exception(sprintf('No mapper found for %s -> %s', $from::class, $toClass));
     }
 }
diff --git a/src/MicroMapperInterface.php b/src/MicroMapperInterface.php
index b73fba0..abf3320 100644
--- a/src/MicroMapperInterface.php
+++ b/src/MicroMapperInterface.php
@@ -1,5 +1,12 @@
 <?php
 
+/*
+ * This file is part of the SymfonyCasts MicroMapper package.
+ * Copyright (c) SymfonyCasts <https://symfonycasts.com/>
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace Symfonycasts\MicroMapper;
 
 /**
diff --git a/src/SymfonycastsMicroMapperBundle.php b/src/SymfonycastsMicroMapperBundle.php
index e6839c5..7b01ffe 100644
--- a/src/SymfonycastsMicroMapperBundle.php
+++ b/src/SymfonycastsMicroMapperBundle.php
@@ -1,5 +1,12 @@
 <?php
 
+/*
+ * This file is part of the SymfonyCasts MicroMapper package.
+ * Copyright (c) SymfonyCasts <https://symfonycasts.com/>
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace Symfonycasts\MicroMapper;
 
 use Symfony\Component\DependencyInjection\ContainerBuilder;
diff --git a/tests/IntegrationTest.php b/tests/IntegrationTest.php
index 53c79b0..830b4a8 100644
--- a/tests/IntegrationTest.php
+++ b/tests/IntegrationTest.php
@@ -1,5 +1,12 @@
 <?php
 
+/*
+ * This file is part of the SymfonyCasts MicroMapper package.
+ * Copyright (c) SymfonyCasts <https://symfonycasts.com/>
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace Symfonycasts\MicroMapper\Tests;
 
 use Symfony\Bundle\FrameworkBundle\Test\KernelTestCase;
@@ -21,7 +28,7 @@ public function testBundleIntegration()
         $region->dinosaurs = [$dinosaur1];
 
         $microMapper = self::getContainer()->get('public.micro_mapper');
-        assert($microMapper instanceof MicroMapperInterface);
+        \assert($microMapper instanceof MicroMapperInterface);
         $dto = $microMapper->map($region, DinoRegionDto::class);
         $this->assertInstanceOf(DinoRegionDto::class, $dto);
         $this->assertSame(1, $dto->id);
diff --git a/tests/MapperConfigTest.php b/tests/MapperConfigTest.php
index ed9ff2e..435fec6 100644
--- a/tests/MapperConfigTest.php
+++ b/tests/MapperConfigTest.php
@@ -1,5 +1,12 @@
 <?php
 
+/*
+ * This file is part of the SymfonyCasts MicroMapper package.
+ * Copyright (c) SymfonyCasts <https://symfonycasts.com/>
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace Symfonycasts\MicroMapper\Tests;
 
 use PHPUnit\Framework\TestCase;
@@ -15,7 +22,7 @@ public function testSupports()
         $config = new MapperConfig(
             fromClass: DinoRegion::class,
             toClass: DinoRegionDto::class,
-            mapper: fn() => $this->createMock(MapperInterface::class),
+            mapper: fn () => $this->createMock(MapperInterface::class),
         );
 
         $this->assertTrue($config->supports(new DinoRegion(), DinoRegionDto::class));
@@ -30,7 +37,7 @@ public function testGetMapper()
         $config = new MapperConfig(
             fromClass: DinoRegion::class,
             toClass: DinoRegionDto::class,
-            mapper: fn() => $mockMapper,
+            mapper: fn () => $mockMapper,
         );
 
         $this->assertSame($mockMapper, $config->getMapper());
diff --git a/tests/MicroMapperTest.php b/tests/MicroMapperTest.php
index 49d787a..69cc396 100644
--- a/tests/MicroMapperTest.php
+++ b/tests/MicroMapperTest.php
@@ -1,5 +1,12 @@
 <?php
 
+/*
+ * This file is part of the SymfonyCasts MicroMapper package.
+ * Copyright (c) SymfonyCasts <https://symfonycasts.com/>
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace Symfonycasts\MicroMapper\Tests;
 
 use PHPUnit\Framework\TestCase;
@@ -58,12 +65,12 @@ private function createMapper(): MicroMapperInterface
         $microMapper->addMapperConfig(new MapperConfig(
             DinoRegion::class,
             DinoRegionDto::class,
-            fn() => new DinoRegionToDtoMapper($microMapper)
+            fn () => new DinoRegionToDtoMapper($microMapper)
         ));
         $microMapper->addMapperConfig(new MapperConfig(
             Dinosaur::class,
             DinosaurDto::class,
-            fn() => new DinosaurToDtoMapper($microMapper)
+            fn () => new DinosaurToDtoMapper($microMapper)
         ));
 
         return $microMapper;
diff --git a/tests/fixtures/DinoRegion.php b/tests/fixtures/DinoRegion.php
index 7b7b8e5..1da5915 100644
--- a/tests/fixtures/DinoRegion.php
+++ b/tests/fixtures/DinoRegion.php
@@ -1,5 +1,12 @@
 <?php
 
+/*
+ * This file is part of the SymfonyCasts MicroMapper package.
+ * Copyright (c) SymfonyCasts <https://symfonycasts.com/>
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace Symfonycasts\MicroMapper\Tests\fixtures;
 
 class DinoRegion
diff --git a/tests/fixtures/DinoRegionDto.php b/tests/fixtures/DinoRegionDto.php
index 559893c..111a43b 100644
--- a/tests/fixtures/DinoRegionDto.php
+++ b/tests/fixtures/DinoRegionDto.php
@@ -1,5 +1,12 @@
 <?php
 
+/*
+ * This file is part of the SymfonyCasts MicroMapper package.
+ * Copyright (c) SymfonyCasts <https://symfonycasts.com/>
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace Symfonycasts\MicroMapper\Tests\fixtures;
 
 class DinoRegionDto
diff --git a/tests/fixtures/DinoRegionToDtoMapper.php b/tests/fixtures/DinoRegionToDtoMapper.php
index 549a234..ef19c1e 100644
--- a/tests/fixtures/DinoRegionToDtoMapper.php
+++ b/tests/fixtures/DinoRegionToDtoMapper.php
@@ -1,5 +1,12 @@
 <?php
 
+/*
+ * This file is part of the SymfonyCasts MicroMapper package.
+ * Copyright (c) SymfonyCasts <https://symfonycasts.com/>
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace Symfonycasts\MicroMapper\Tests\fixtures;
 
 use Symfonycasts\MicroMapper\AsMapper;
@@ -11,7 +18,6 @@ class DinoRegionToDtoMapper implements MapperInterface
 {
     public function __construct(private MicroMapperInterface $microMapper)
     {
-
     }
 
     public function load(object $from, string $toClass, array $context): object
@@ -24,8 +30,8 @@ public function load(object $from, string $toClass, array $context): object
 
     public function populate(object $from, object $to, array $context): object
     {
-        assert($from instanceof DinoRegion);
-        assert($to instanceof DinoRegionDto);
+        \assert($from instanceof DinoRegion);
+        \assert($to instanceof DinoRegionDto);
 
         $to->name = $from->name;
         $to->climate = $from->climate;
diff --git a/tests/fixtures/Dinosaur.php b/tests/fixtures/Dinosaur.php
index a0b399d..9b88220 100644
--- a/tests/fixtures/Dinosaur.php
+++ b/tests/fixtures/Dinosaur.php
@@ -1,5 +1,12 @@
 <?php
 
+/*
+ * This file is part of the SymfonyCasts MicroMapper package.
+ * Copyright (c) SymfonyCasts <https://symfonycasts.com/>
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace Symfonycasts\MicroMapper\Tests\fixtures;
 
 class Dinosaur
@@ -9,7 +16,6 @@ public function __construct(
         public ?string $genus = null,
         public ?string $species = null,
         public ?DinoRegion $region = null,
-    )
-    {
+    ) {
     }
 }
diff --git a/tests/fixtures/DinosaurDto.php b/tests/fixtures/DinosaurDto.php
index 337e4b5..01eb5ec 100644
--- a/tests/fixtures/DinosaurDto.php
+++ b/tests/fixtures/DinosaurDto.php
@@ -1,5 +1,12 @@
 <?php
 
+/*
+ * This file is part of the SymfonyCasts MicroMapper package.
+ * Copyright (c) SymfonyCasts <https://symfonycasts.com/>
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace Symfonycasts\MicroMapper\Tests\fixtures;
 
 class DinosaurDto
diff --git a/tests/fixtures/DinosaurToDtoMapper.php b/tests/fixtures/DinosaurToDtoMapper.php
index cba8270..f3fc235 100644
--- a/tests/fixtures/DinosaurToDtoMapper.php
+++ b/tests/fixtures/DinosaurToDtoMapper.php
@@ -1,5 +1,12 @@
 <?php
 
+/*
+ * This file is part of the SymfonyCasts MicroMapper package.
+ * Copyright (c) SymfonyCasts <https://symfonycasts.com/>
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace Symfonycasts\MicroMapper\Tests\fixtures;
 
 use Symfonycasts\MicroMapper\AsMapper;
@@ -11,7 +18,6 @@ class DinosaurToDtoMapper implements MapperInterface
 {
     public function __construct(private MicroMapperInterface $microMapper)
     {
-
     }
 
     public function load(object $from, string $toClass, array $context): object
@@ -24,8 +30,8 @@ public function load(object $from, string $toClass, array $context): object
 
     public function populate(object $from, object $to, array $context): object
     {
-        assert($from instanceof Dinosaur);
-        assert($to instanceof DinosaurDto);
+        \assert($from instanceof Dinosaur);
+        \assert($to instanceof DinosaurDto);
 
         $to->genus = $from->genus;
         $to->species = $from->species;
diff --git a/tests/fixtures/MicroMapperTestKernel.php b/tests/fixtures/MicroMapperTestKernel.php
index 9bdc737..c8f312a 100644
--- a/tests/fixtures/MicroMapperTestKernel.php
+++ b/tests/fixtures/MicroMapperTestKernel.php
@@ -1,5 +1,12 @@
 <?php
 
+/*
+ * This file is part of the SymfonyCasts MicroMapper package.
+ * Copyright (c) SymfonyCasts <https://symfonycasts.com/>
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace Symfonycasts\MicroMapper\Tests\fixtures;
 
 use Symfony\Bundle\FrameworkBundle\FrameworkBundle;