diff --git a/composer.lock b/composer.lock
index 733abfd..1ffc03d 100644
--- a/composer.lock
+++ b/composer.lock
@@ -3250,16 +3250,16 @@
         },
         {
             "name": "phpstan/phpdoc-parser",
-            "version": "1.24.0",
+            "version": "1.24.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/phpstan/phpdoc-parser.git",
-                "reference": "3510b0a6274cc42f7219367cb3abfc123ffa09d6"
+                "reference": "9f854d275c2dbf84915a5c0ec9a2d17d2cd86b01"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/phpstan/phpdoc-parser/zipball/3510b0a6274cc42f7219367cb3abfc123ffa09d6",
-                "reference": "3510b0a6274cc42f7219367cb3abfc123ffa09d6",
+                "url": "https://api.github.com/repos/phpstan/phpdoc-parser/zipball/9f854d275c2dbf84915a5c0ec9a2d17d2cd86b01",
+                "reference": "9f854d275c2dbf84915a5c0ec9a2d17d2cd86b01",
                 "shasum": ""
             },
             "require": {
@@ -3291,9 +3291,9 @@
             "description": "PHPDoc parser with support for nullable, intersection and generic types",
             "support": {
                 "issues": "https://github.com/phpstan/phpdoc-parser/issues",
-                "source": "https://github.com/phpstan/phpdoc-parser/tree/1.24.0"
+                "source": "https://github.com/phpstan/phpdoc-parser/tree/1.24.1"
             },
-            "time": "2023-09-07T20:46:32+00:00"
+            "time": "2023-09-18T12:18:02+00:00"
         },
         {
             "name": "phpstan/phpstan",
@@ -3359,16 +3359,16 @@
         },
         {
             "name": "phpunit/php-code-coverage",
-            "version": "10.1.5",
+            "version": "10.1.6",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/php-code-coverage.git",
-                "reference": "1df504e42a88044c27a90136910f0b3fe9e91939"
+                "reference": "56f33548fe522c8d82da7ff3824b42829d324364"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/php-code-coverage/zipball/1df504e42a88044c27a90136910f0b3fe9e91939",
-                "reference": "1df504e42a88044c27a90136910f0b3fe9e91939",
+                "url": "https://api.github.com/repos/sebastianbergmann/php-code-coverage/zipball/56f33548fe522c8d82da7ff3824b42829d324364",
+                "reference": "56f33548fe522c8d82da7ff3824b42829d324364",
                 "shasum": ""
             },
             "require": {
@@ -3425,7 +3425,7 @@
             "support": {
                 "issues": "https://github.com/sebastianbergmann/php-code-coverage/issues",
                 "security": "https://github.com/sebastianbergmann/php-code-coverage/security/policy",
-                "source": "https://github.com/sebastianbergmann/php-code-coverage/tree/10.1.5"
+                "source": "https://github.com/sebastianbergmann/php-code-coverage/tree/10.1.6"
             },
             "funding": [
                 {
@@ -3433,7 +3433,7 @@
                     "type": "github"
                 }
             ],
-            "time": "2023-09-12T14:37:22+00:00"
+            "time": "2023-09-19T04:59:03+00:00"
         },
         {
             "name": "phpunit/php-file-iterator",
@@ -3680,16 +3680,16 @@
         },
         {
             "name": "phpunit/phpunit",
-            "version": "10.3.4",
+            "version": "10.3.5",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/phpunit.git",
-                "reference": "b8d59476f19115c9774b3b447f78131781c6c32b"
+                "reference": "747c3b2038f1139e3dcd9886a3f5a948648b7503"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/phpunit/zipball/b8d59476f19115c9774b3b447f78131781c6c32b",
-                "reference": "b8d59476f19115c9774b3b447f78131781c6c32b",
+                "url": "https://api.github.com/repos/sebastianbergmann/phpunit/zipball/747c3b2038f1139e3dcd9886a3f5a948648b7503",
+                "reference": "747c3b2038f1139e3dcd9886a3f5a948648b7503",
                 "shasum": ""
             },
             "require": {
@@ -3713,7 +3713,7 @@
                 "sebastian/comparator": "^5.0",
                 "sebastian/diff": "^5.0",
                 "sebastian/environment": "^6.0",
-                "sebastian/exporter": "^5.0",
+                "sebastian/exporter": "^5.1",
                 "sebastian/global-state": "^6.0.1",
                 "sebastian/object-enumerator": "^5.0",
                 "sebastian/recursion-context": "^5.0",
@@ -3761,7 +3761,7 @@
             "support": {
                 "issues": "https://github.com/sebastianbergmann/phpunit/issues",
                 "security": "https://github.com/sebastianbergmann/phpunit/security/policy",
-                "source": "https://github.com/sebastianbergmann/phpunit/tree/10.3.4"
+                "source": "https://github.com/sebastianbergmann/phpunit/tree/10.3.5"
             },
             "funding": [
                 {
@@ -3777,7 +3777,7 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2023-09-12T14:42:28+00:00"
+            "time": "2023-09-19T05:42:37+00:00"
         },
         {
             "name": "sebastian/cli-parser",
@@ -4214,16 +4214,16 @@
         },
         {
             "name": "sebastian/exporter",
-            "version": "5.0.1",
+            "version": "5.1.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/exporter.git",
-                "reference": "32ff03d078fed1279c4ec9a407d08c5e9febb480"
+                "reference": "c3fa8483f9539b190f7cd4bfc4a07631dd1df344"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/exporter/zipball/32ff03d078fed1279c4ec9a407d08c5e9febb480",
-                "reference": "32ff03d078fed1279c4ec9a407d08c5e9febb480",
+                "url": "https://api.github.com/repos/sebastianbergmann/exporter/zipball/c3fa8483f9539b190f7cd4bfc4a07631dd1df344",
+                "reference": "c3fa8483f9539b190f7cd4bfc4a07631dd1df344",
                 "shasum": ""
             },
             "require": {
@@ -4280,7 +4280,7 @@
             "support": {
                 "issues": "https://github.com/sebastianbergmann/exporter/issues",
                 "security": "https://github.com/sebastianbergmann/exporter/security/policy",
-                "source": "https://github.com/sebastianbergmann/exporter/tree/5.0.1"
+                "source": "https://github.com/sebastianbergmann/exporter/tree/5.1.0"
             },
             "funding": [
                 {
@@ -4288,7 +4288,7 @@
                     "type": "github"
                 }
             ],
-            "time": "2023-09-08T04:46:58+00:00"
+            "time": "2023-09-18T07:15:37+00:00"
         },
         {
             "name": "sebastian/global-state",
diff --git a/src/Notification/Notification.php b/src/Notification/Notification.php
index b734774..370f42d 100644
--- a/src/Notification/Notification.php
+++ b/src/Notification/Notification.php
@@ -50,6 +50,9 @@ class Notification
         }
     }
 
+    /**
+     * Add a single notifier instance.
+     */
     public function addNotifier(NotificationInterface $instance): void
     {
         $this->notifiers[] = $instance;
@@ -65,6 +68,11 @@ class Notification
         return $this->notifiers;
     }
 
+    /**
+     * Push a notification to all notifiers.
+     *
+     * Logs an error if sending fails.
+     */
     public function send(string $title, string $message): void
     {
         foreach ($this->getNotifiers() as $notifier) {
diff --git a/src/Notification/NotificationInterface.php b/src/Notification/NotificationInterface.php
index bb130e5..5603e7a 100644
--- a/src/Notification/NotificationInterface.php
+++ b/src/Notification/NotificationInterface.php
@@ -11,5 +11,8 @@ interface NotificationInterface
      */
     public static function factory(array $config): self;
 
+    /**
+     * @throw Exception on error.
+     */
     public function send(string $title, string $message): void;
 }
diff --git a/src/Notification/Ntfy.php b/src/Notification/Ntfy.php
index f0e1437..4d53937 100644
--- a/src/Notification/Ntfy.php
+++ b/src/Notification/Ntfy.php
@@ -9,6 +9,9 @@ use Ntfy\Message;
 use Ntfy\Client;
 use InvalidArgumentException;
 
+/**
+ * Send a notification through a ntfy server
+ */
 class Ntfy implements NotificationInterface
 {
     private string $topic = 'default';
@@ -16,6 +19,8 @@ class Ntfy implements NotificationInterface
     /**
      * Initialize with configuration.
      *
+     * Factory method.
+     *
      * @param string[] $config Configuration
      */
     public static function factory(array $config): self
@@ -34,6 +39,11 @@ class Ntfy implements NotificationInterface
     {
     }
 
+    /**
+     * Set the topic of the notification message.
+     *
+     * @param string $topic Topic length between 1 and 256 characters.
+     */
     public function setTopic(string $topic): void
     {
         if (strlen($topic) < 1 || strlen($topic) >= 256) {
@@ -43,6 +53,9 @@ class Ntfy implements NotificationInterface
         $this->topic = $topic;
     }
 
+    /**
+     * Return the currently set topic.
+     */
     public function getTopic(): string
     {
         return $this->topic;