diff --git a/modules/opd_daily_emails/src/DailyEmailNodeRepository.php b/modules/opd_daily_emails/src/DailyEmailNodeRepository.php
index 90d2be71e..4caf528ae 100644
--- a/modules/opd_daily_emails/src/DailyEmailNodeRepository.php
+++ b/modules/opd_daily_emails/src/DailyEmailNodeRepository.php
@@ -27,7 +27,7 @@ final class DailyEmailNodeRepository implements DailyEmailRepositoryInterface {
 
     $nodeIds = $query->execute();
 
-    /** @var NodeInterface[] */
+    /** @var DailyEmail[] */
     $nodes = $nodeStorage->loadMultiple($nodeIds);
 
     return DailyEmails::fromEmails($nodes);
diff --git a/modules/opd_daily_emails/src/DailyEmails.php b/modules/opd_daily_emails/src/DailyEmails.php
index 232b7f043..f42226386 100644
--- a/modules/opd_daily_emails/src/DailyEmails.php
+++ b/modules/opd_daily_emails/src/DailyEmails.php
@@ -17,12 +17,15 @@ final class DailyEmails implements \Countable {
     return array_values($this->emails)[0];
   }
 
+  /**
+   * @param DailyEmail[] $emails
+   */
   public static function fromEmails(array $emails): self {
     return new self($emails);
   }
 
   /**
-   * @param array<positive-int, NodeInterface> $emails
+   * @param array<positive-int, DailyEmail> $emails
    */
   private function __construct(
     private array $emails,
diff --git a/modules/opd_daily_emails/tests/src/Functional/CallToActionTest.php b/modules/opd_daily_emails/tests/src/Functional/CallToActionTest.php
index 756e88a9d..2082d43da 100644
--- a/modules/opd_daily_emails/tests/src/Functional/CallToActionTest.php
+++ b/modules/opd_daily_emails/tests/src/Functional/CallToActionTest.php
@@ -36,8 +36,12 @@ final class CallToActionTest extends ExistingSiteBase {
     $email->set('title', 'Updated');
     $email->save();
 
+    $value = $email->get('field_daily_email_cta')->getValue();
+    assert(is_array($value));
+    assert(isset($value[0]['target_id']));
+
     $this->assertSame(
-      actual: $email->get('field_daily_email_cta')->getValue()[0]['target_id'],
+      actual: $value[0]['target_id'],
       expected: $cta->id(),
     );
   }
diff --git a/modules/opd_daily_emails/tests/src/Functional/DailyEmailTokenTest.php b/modules/opd_daily_emails/tests/src/Functional/DailyEmailTokenTest.php
index e4461afd9..13ccb6bf7 100644
--- a/modules/opd_daily_emails/tests/src/Functional/DailyEmailTokenTest.php
+++ b/modules/opd_daily_emails/tests/src/Functional/DailyEmailTokenTest.php
@@ -23,17 +23,17 @@ class DailyEmailTokenTest extends BrowserTestBase {
   public function test_the_token_returns_the_number_of_published_daily_emails(): void {
     $this->createDailyEmailNode(
       isPublished: TRUE,
-      title: $this->randomString(),
+      title: 'a',
     );
 
     $this->createDailyEmailNode(
       isPublished: FALSE,
-      title: $this->randomString(),
+      title: 'b',
     );
 
     $this->createDailyEmailNode(
       isPublished: TRUE,
-      title: $this->randomString(),
+      title: 'c',
     );
 
     $this->assertToken(
diff --git a/modules/opd_podcast/src/Guests.php b/modules/opd_podcast/src/Guests.php
index 6f163dfca..e46d2d4a9 100644
--- a/modules/opd_podcast/src/Guests.php
+++ b/modules/opd_podcast/src/Guests.php
@@ -19,7 +19,7 @@ final class Guests implements \Countable, \IteratorAggregate, \Stringable {
       return sprintf('%s %s %s', $this->first()->getName(), t('and'), $this->get(1)->getName());
     }
 
-    return strval($this->first()->getName());
+    return strval($this->first()?->getName());
   }
 
   public function count(): int {
@@ -48,7 +48,7 @@ final class Guests implements \Countable, \IteratorAggregate, \Stringable {
     Assert::allIsInstanceOf($guests, Guest::class);
   }
 
-  private function get(int $offset): ?Guest {
+  private function get(int $offset): Guest {
     return $this->guests[$offset];
   }
 
diff --git a/modules/opd_presentations/src/Events.php b/modules/opd_presentations/src/Events.php
index a0266724b..252bb9631 100644
--- a/modules/opd_presentations/src/Events.php
+++ b/modules/opd_presentations/src/Events.php
@@ -35,9 +35,6 @@ readonly final class Events implements \Countable, \IteratorAggregate {
       ->filter(fn (Event $event): bool => $event->isPast());
   }
 
-  /**
-   * @param non-empty-string[] $dates
-   */
   public static function fromDateStrings(string ...$dates): self {
     $events = array_map(
       array: $dates,
diff --git a/modules/opd_presentations/src/PresentationCounter.php b/modules/opd_presentations/src/PresentationCounter.php
index 263032e6e..6d7753c46 100644
--- a/modules/opd_presentations/src/PresentationCounter.php
+++ b/modules/opd_presentations/src/PresentationCounter.php
@@ -9,8 +9,6 @@ use Drupal\node\NodeInterface;
 
 final class PresentationCounter {
 
-  private array $presentations;
-
   public function __construct(private EntityTypeManagerInterface $entityTypeManager) {
   }
 
@@ -24,6 +22,7 @@ final class PresentationCounter {
 
     $nodeIds = $query->execute();
 
+    /** @var Presentation[] */
     $presentations = $nodeStorage->loadMultiple($nodeIds);
 
     return array_reduce(
diff --git a/modules/opd_presentations/tests/src/Traits/PresentationCreationTrait.php b/modules/opd_presentations/tests/src/Traits/PresentationCreationTrait.php
index 7dc5e1d77..843a5addc 100644
--- a/modules/opd_presentations/tests/src/Traits/PresentationCreationTrait.php
+++ b/modules/opd_presentations/tests/src/Traits/PresentationCreationTrait.php
@@ -16,10 +16,6 @@ trait PresentationCreationTrait {
   use EntityCreationTrait;
   use NodeCreationTrait;
 
-  /**
-   * @param Event[] $events
-   * @param bool $isPublished
-   */
   private function createPresentation(Events $events, bool $isPublished = TRUE): Presentation {
     $presentation = $this->createNode([
       'field_events' => $events->toEvents(),