diff --git a/src/AnimeClient/API/Kitsu/Auth.php b/src/AnimeClient/API/Kitsu/Auth.php
index 8e302696..72d79c03 100644
--- a/src/AnimeClient/API/Kitsu/Auth.php
+++ b/src/AnimeClient/API/Kitsu/Auth.php
@@ -52,7 +52,7 @@ final class Auth
 			->getSegment(SESSION_SEGMENT);
 		$this->model = $container->get('kitsu-model');
 
-		Event::on('::unauthorized::', [$this, 'reAuthenticate']);
+		Event::on('::unauthorized::', $this->reAuthenticate(...));
 	}
 
 	/**
diff --git a/src/AnimeClient/API/Kitsu/Model.php b/src/AnimeClient/API/Kitsu/Model.php
index 018aea92..b4293d7d 100644
--- a/src/AnimeClient/API/Kitsu/Model.php
+++ b/src/AnimeClient/API/Kitsu/Model.php
@@ -567,7 +567,7 @@ final class Model
 		// this way is much faster...
 		foreach ($statuses as $status)
 		{
-			foreach ($this->getPages([$this, 'getThumbListPages'], strtoupper($type), $status) as $page)
+			foreach ($this->getPages($this->getThumbListPages(...), strtoupper($type), $status) as $page)
 			{
 				$pages[] = $page;
 			}
@@ -597,7 +597,7 @@ final class Model
 		// this way is much faster...
 		foreach ($statuses as $status)
 		{
-			foreach ($this->getPages([$this, 'getSyncPages'], strtoupper($type), $status) as $page)
+			foreach ($this->getPages($this->getSyncPages(...), strtoupper($type), $status) as $page)
 			{
 				$pages[] = $page;
 			}
@@ -627,7 +627,7 @@ final class Model
 	{
 		$pages = [];
 
-		foreach ($this->getPages([$this, 'getListPages'], strtoupper($type), strtoupper($status)) as $page)
+		foreach ($this->getPages($this->getListPages(...), strtoupper($type), strtoupper($status)) as $page)
 		{
 			$pages[] = $page;
 		}
diff --git a/src/AnimeClient/API/ParallelAPIRequest.php b/src/AnimeClient/API/ParallelAPIRequest.php
index b2a3cf4f..ab66c3cf 100644
--- a/src/AnimeClient/API/ParallelAPIRequest.php
+++ b/src/AnimeClient/API/ParallelAPIRequest.php
@@ -56,7 +56,7 @@ final class ParallelAPIRequest
 	 */
 	public function addRequests(array $requests): self
 	{
-		array_walk($requests, [$this, 'addRequest']);
+		array_walk($requests, $this->addRequest(...));
 
 		return $this;
 	}
diff --git a/src/AnimeClient/Controller.php b/src/AnimeClient/Controller.php
index 275076e6..f10e0647 100644
--- a/src/AnimeClient/Controller.php
+++ b/src/AnimeClient/Controller.php
@@ -251,7 +251,7 @@ class Controller
  public function notFound(
  	string $title = 'Sorry, page not found',
  	string $message = 'Page Not Found'
- ): void {
+ ): never {
  	$this->outputHTML('404', [
  		'title' => $title,
  		'message' => $message,
diff --git a/src/AnimeClient/Controller/User.php b/src/AnimeClient/Controller/User.php
index c87093f7..249fd4ec 100644
--- a/src/AnimeClient/Controller/User.php
+++ b/src/AnimeClient/Controller/User.php
@@ -71,7 +71,7 @@ final class User extends BaseController
 		$rawData = $this->kitsuModel->getUserData($username);
 		if ($rawData['data']['findProfileBySlug'] === NULL)
 		{
-			$this->notFound('Sorry, user not found', "The user '$username' does not seem to exist.");
+			$this->notFound('Sorry, user not found', "The user '{$username}' does not seem to exist.");
 
 			return;
 		}
diff --git a/src/Ion/Attribute/Route.php b/src/Ion/Attribute/Route.php
index a6cfbd58..f7754f2b 100644
--- a/src/Ion/Attribute/Route.php
+++ b/src/Ion/Attribute/Route.php
@@ -19,8 +19,8 @@ use Attribute;
 #[Attribute(Attribute::TARGET_FUNCTION | Attribute::TARGET_METHOD | Attribute::IS_REPEATABLE)]
 class Route
 {
-	public const GET = 'get';
-	public const POST = 'post';
+	final public const GET = 'get';
+	final public const POST = 'post';
 
 	public function __construct(
 		public string $name,
diff --git a/src/Ion/Transformer/AbstractTransformer.php b/src/Ion/Transformer/AbstractTransformer.php
index 14807048..5ff017da 100644
--- a/src/Ion/Transformer/AbstractTransformer.php
+++ b/src/Ion/Transformer/AbstractTransformer.php
@@ -33,7 +33,7 @@ abstract class AbstractTransformer implements TransformerInterface
 	{
 		$list = (array) $collection;
 
-		return array_map([$this, 'transform'], $list);
+		return array_map($this->transform(...), $list);
 	}
 
 	/**