diff --git a/app/Events/Discord/DiscordThread/DiscordThreadDeleted.php b/app/Events/Discord/DiscordThread/DiscordThreadDeleted.php
index 6b23d27ee..73ce3ef3b 100644
--- a/app/Events/Discord/DiscordThread/DiscordThreadDeleted.php
+++ b/app/Events/Discord/DiscordThread/DiscordThreadDeleted.php
@@ -4,7 +4,6 @@ declare(strict_types=1);
 
 namespace App\Events\Discord\DiscordThread;
 
-use App\Actions\Discord\DiscordThreadAction;
 use App\Events\Base\Admin\AdminDeletedEvent;
 use App\Models\Discord\DiscordThread;
 
@@ -16,21 +15,10 @@ class DiscordThreadDeleted extends AdminDeletedEvent
     public function __construct(DiscordThread $thread)
     {
         parent::__construct($thread);
-        $this->deleteThread();
     }
 
     protected function getDiscordMessageDescription(): string
     {
         return "Discord Thread '**{$this->getModel()->getName()}**' has been deleted.";
     }
-
-    /**
-     * Delete the thread on discord.
-     */
-    protected function deleteThread(): void
-    {
-        DiscordThreadAction::getHttp()
-            ->delete('/thread', ['id' => $this->getModel()->getKey()])
-            ->throw();
-    }
 }
diff --git a/app/Events/Discord/DiscordThread/DiscordThreadUpdated.php b/app/Events/Discord/DiscordThread/DiscordThreadUpdated.php
index f759c1f6d..a0c62f141 100644
--- a/app/Events/Discord/DiscordThread/DiscordThreadUpdated.php
+++ b/app/Events/Discord/DiscordThread/DiscordThreadUpdated.php
@@ -4,7 +4,6 @@ declare(strict_types=1);
 
 namespace App\Events\Discord\DiscordThread;
 
-use App\Actions\Discord\DiscordThreadAction;
 use App\Events\Base\Admin\AdminUpdatedEvent;
 use App\Models\Discord\DiscordThread;
 
@@ -16,7 +15,6 @@ class DiscordThreadUpdated extends AdminUpdatedEvent
     public function __construct(DiscordThread $thread)
     {
         parent::__construct($thread);
-        $this->updateThread();
         $this->initializeEmbedFields($thread);
     }
 
@@ -24,14 +22,4 @@ class DiscordThreadUpdated extends AdminUpdatedEvent
     {
         return "Discord Thread '**{$this->getModel()->getName()}**' has been updated.";
     }
-
-    /**
-     * Update the thread on discord.
-     */
-    protected function updateThread(): void
-    {
-        DiscordThreadAction::getHttp()
-            ->put('/thread', $this->getModel()->toArray())
-            ->throw();
-    }
 }
diff --git a/app/Events/Wiki/Anime/Theme/ThemeCreated.php b/app/Events/Wiki/Anime/Theme/ThemeCreated.php
index b2dc3456e..550e6e41d 100644
--- a/app/Events/Wiki/Anime/Theme/ThemeCreated.php
+++ b/app/Events/Wiki/Anime/Theme/ThemeCreated.php
@@ -18,8 +18,6 @@ class ThemeCreated extends WikiCreatedEvent implements UpdateRelatedIndicesEvent
     public function __construct(AnimeTheme $theme)
     {
         parent::__construct($theme);
-
-        $this->updateFirstTheme();
     }
 
     protected function getDiscordMessageDescription(): string
@@ -36,17 +34,4 @@ class ThemeCreated extends WikiCreatedEvent implements UpdateRelatedIndicesEvent
             $entry->videos->each(fn (Video $video) => $video->searchable());
         });
     }
-
-    /**
-     * Update the sequence attribute of the first theme when creating a new sequence theme.
-     */
-    protected function updateFirstTheme(): void
-    {
-        if ($this->getModel()->sequence >= 2) {
-            $this->getModel()->anime->animethemes()->getQuery()
-                ->where(AnimeTheme::ATTRIBUTE_SEQUENCE)
-                ->where(AnimeTheme::ATTRIBUTE_TYPE, $this->getModel()->type)
-                ->update([AnimeTheme::ATTRIBUTE_SEQUENCE => 1]);
-        }
-    }
 }
diff --git a/app/Events/Wiki/Group/GroupCreated.php b/app/Events/Wiki/Group/GroupCreated.php
index 0e289b6d4..439b8e0ee 100644
--- a/app/Events/Wiki/Group/GroupCreated.php
+++ b/app/Events/Wiki/Group/GroupCreated.php
@@ -4,33 +4,16 @@ declare(strict_types=1);
 
 namespace App\Events\Wiki\Group;
 
-use App\Contracts\Events\UpdateRelatedIndicesEvent;
 use App\Events\Base\Wiki\WikiCreatedEvent;
-use App\Models\Wiki\Anime\AnimeTheme;
-use App\Models\Wiki\Anime\Theme\AnimeThemeEntry;
 use App\Models\Wiki\Group;
-use App\Models\Wiki\Video;
 
 /**
  * @extends WikiCreatedEvent<Group>
  */
-class GroupCreated extends WikiCreatedEvent implements UpdateRelatedIndicesEvent
+class GroupCreated extends WikiCreatedEvent
 {
     protected function getDiscordMessageDescription(): string
     {
         return "Group '**{$this->getModel()->getName()}**' has been created.";
     }
-
-    public function updateRelatedIndices(): void
-    {
-        $group = $this->getModel()->load(Group::RELATION_VIDEOS);
-
-        $group->animethemes->each(function (AnimeTheme $theme): void {
-            $theme->searchable();
-            $theme->animethemeentries->each(function (AnimeThemeEntry $entry): void {
-                $entry->searchable();
-                $entry->videos->each(fn (Video $video) => $video->searchable());
-            });
-        });
-    }
 }
diff --git a/app/Events/Wiki/Group/GroupDeleted.php b/app/Events/Wiki/Group/GroupDeleted.php
index c7ba7cef4..ee25c55cb 100644
--- a/app/Events/Wiki/Group/GroupDeleted.php
+++ b/app/Events/Wiki/Group/GroupDeleted.php
@@ -4,18 +4,14 @@ declare(strict_types=1);
 
 namespace App\Events\Wiki\Group;
 
-use App\Contracts\Events\UpdateRelatedIndicesEvent;
 use App\Events\Base\Wiki\WikiDeletedEvent;
 use App\Filament\Resources\Wiki\Group as GroupFilament;
-use App\Models\Wiki\Anime\AnimeTheme;
-use App\Models\Wiki\Anime\Theme\AnimeThemeEntry;
 use App\Models\Wiki\Group;
-use App\Models\Wiki\Video;
 
 /**
  * @extends WikiDeletedEvent<Group>
  */
-class GroupDeleted extends WikiDeletedEvent implements UpdateRelatedIndicesEvent
+class GroupDeleted extends WikiDeletedEvent
 {
     protected function getDiscordMessageDescription(): string
     {
@@ -31,17 +27,4 @@ class GroupDeleted extends WikiDeletedEvent implements UpdateRelatedIndicesEvent
     {
         return GroupFilament::getUrl('view', ['record' => $this->getModel()]);
     }
-
-    public function updateRelatedIndices(): void
-    {
-        $group = $this->getModel()->load(Group::RELATION_VIDEOS);
-
-        $group->animethemes->each(function (AnimeTheme $theme): void {
-            $theme->searchable();
-            $theme->animethemeentries->each(function (AnimeThemeEntry $entry): void {
-                $entry->searchable();
-                $entry->videos->each(fn (Video $video) => $video->searchable());
-            });
-        });
-    }
 }
diff --git a/app/Events/Wiki/Group/GroupDeleting.php b/app/Events/Wiki/Group/GroupDeleting.php
index c21793375..47f989842 100644
--- a/app/Events/Wiki/Group/GroupDeleting.php
+++ b/app/Events/Wiki/Group/GroupDeleting.php
@@ -7,9 +7,7 @@ namespace App\Events\Wiki\Group;
 use App\Contracts\Events\UpdateRelatedIndicesEvent;
 use App\Events\BaseEvent;
 use App\Models\Wiki\Anime\AnimeTheme;
-use App\Models\Wiki\Anime\Theme\AnimeThemeEntry;
 use App\Models\Wiki\Group;
-use App\Models\Wiki\Video;
 
 /**
  * @extends BaseEvent<Group>
@@ -26,11 +24,6 @@ class GroupDeleting extends BaseEvent implements UpdateRelatedIndicesEvent
                     $theme->group()->dissociate();
                     $theme->save();
                 });
-                $theme->searchable();
-                $theme->animethemeentries->each(function (AnimeThemeEntry $entry): void {
-                    $entry->searchable();
-                    $entry->videos->each(fn (Video $video) => $video->searchable());
-                });
             });
         }
     }
diff --git a/app/Events/Wiki/Group/GroupRestored.php b/app/Events/Wiki/Group/GroupRestored.php
index 15806f076..5b7bc8993 100644
--- a/app/Events/Wiki/Group/GroupRestored.php
+++ b/app/Events/Wiki/Group/GroupRestored.php
@@ -4,33 +4,16 @@ declare(strict_types=1);
 
 namespace App\Events\Wiki\Group;
 
-use App\Contracts\Events\UpdateRelatedIndicesEvent;
 use App\Events\Base\Wiki\WikiRestoredEvent;
-use App\Models\Wiki\Anime\AnimeTheme;
-use App\Models\Wiki\Anime\Theme\AnimeThemeEntry;
 use App\Models\Wiki\Group;
-use App\Models\Wiki\Video;
 
 /**
  * @extends WikiRestoredEvent<Group>
  */
-class GroupRestored extends WikiRestoredEvent implements UpdateRelatedIndicesEvent
+class GroupRestored extends WikiRestoredEvent
 {
     protected function getDiscordMessageDescription(): string
     {
         return "Group '**{$this->getModel()->getName()}**' has been restored.";
     }
-
-    public function updateRelatedIndices(): void
-    {
-        $group = $this->getModel()->load(Group::RELATION_VIDEOS);
-
-        $group->animethemes->each(function (AnimeTheme $theme): void {
-            $theme->searchable();
-            $theme->animethemeentries->each(function (AnimeThemeEntry $entry): void {
-                $entry->searchable();
-                $entry->videos->each(fn (Video $video) => $video->searchable());
-            });
-        });
-    }
 }
diff --git a/app/Events/Wiki/Group/GroupUpdated.php b/app/Events/Wiki/Group/GroupUpdated.php
index 87c721f6f..427297bda 100644
--- a/app/Events/Wiki/Group/GroupUpdated.php
+++ b/app/Events/Wiki/Group/GroupUpdated.php
@@ -4,17 +4,13 @@ declare(strict_types=1);
 
 namespace App\Events\Wiki\Group;
 
-use App\Contracts\Events\UpdateRelatedIndicesEvent;
 use App\Events\Base\Wiki\WikiUpdatedEvent;
-use App\Models\Wiki\Anime\AnimeTheme;
-use App\Models\Wiki\Anime\Theme\AnimeThemeEntry;
 use App\Models\Wiki\Group;
-use App\Models\Wiki\Video;
 
 /**
  * @extends WikiUpdatedEvent<Group>
  */
-class GroupUpdated extends WikiUpdatedEvent implements UpdateRelatedIndicesEvent
+class GroupUpdated extends WikiUpdatedEvent
 {
     public function __construct(Group $group)
     {
@@ -26,17 +22,4 @@ class GroupUpdated extends WikiUpdatedEvent implements UpdateRelatedIndicesEvent
     {
         return "Group '**{$this->getModel()->getName()}**' has been updated.";
     }
-
-    public function updateRelatedIndices(): void
-    {
-        $group = $this->getModel()->load(Group::RELATION_VIDEOS);
-
-        $group->animethemes->each(function (AnimeTheme $theme): void {
-            $theme->searchable();
-            $theme->animethemeentries->each(function (AnimeThemeEntry $entry): void {
-                $entry->searchable();
-                $entry->videos->each(fn (Video $video) => $video->searchable());
-            });
-        });
-    }
 }
diff --git a/app/Models/Admin/ActionLog.php b/app/Models/Admin/ActionLog.php
index 1071b0fae..c21b59adb 100644
--- a/app/Models/Admin/ActionLog.php
+++ b/app/Models/Admin/ActionLog.php
@@ -10,8 +10,10 @@ use App\Discord\DiscordEmbedField;
 use App\Enums\Models\Admin\ActionLogStatus;
 use App\Models\Auth\User;
 use App\Models\BaseModel;
+use App\Observers\Admin\ActionLogObserver;
 use Filament\Actions\Action;
 use Filament\Facades\Filament;
+use Illuminate\Database\Eloquent\Attributes\ObservedBy;
 use Illuminate\Database\Eloquent\Model;
 use Illuminate\Database\Eloquent\Relations\BelongsTo;
 use Illuminate\Database\Eloquent\Relations\MorphTo;
@@ -41,6 +43,7 @@ use Throwable;
  * @property int $user_id
  * @property User $user
  */
+#[ObservedBy(ActionLogObserver::class)]
 class ActionLog extends Model implements Nameable
 {
     final public const string TABLE = 'action_logs';
@@ -104,26 +107,6 @@ class ActionLog extends Model implements Nameable
      */
     protected $primaryKey = ActionLog::ATTRIBUTE_ID;
 
-    /**
-     * Boostrap the model.
-     */
-    protected static function boot(): void
-    {
-        parent::boot();
-
-        static::creating(function (ActionLog $actionLog): void {
-            if ($actionLog->status === ActionLogStatus::RUNNING) {
-                Session::put('currentActionLog', $actionLog->batch_id);
-            }
-        });
-
-        static::updating(function (ActionLog $actionLog): void {
-            if ($actionLog->status === ActionLogStatus::FINISHED || $actionLog->status === ActionLogStatus::FAILED) {
-                Session::forget('currentActionLog');
-            }
-        });
-    }
-
     /**
      * When an exception is thrown, the current action logs should be handled.
      */
diff --git a/app/Models/Discord/DiscordThread.php b/app/Models/Discord/DiscordThread.php
index fcee587b3..73ced9f61 100644
--- a/app/Models/Discord/DiscordThread.php
+++ b/app/Models/Discord/DiscordThread.php
@@ -8,7 +8,9 @@ use App\Events\Discord\DiscordThread\DiscordThreadDeleted;
 use App\Events\Discord\DiscordThread\DiscordThreadUpdated;
 use App\Models\BaseModel;
 use App\Models\Wiki\Anime;
+use App\Observers\Discord\DiscordThreadObserver;
 use Database\Factories\Discord\DiscordThreadFactory;
+use Illuminate\Database\Eloquent\Attributes\ObservedBy;
 use Illuminate\Database\Eloquent\Factories\HasFactory;
 use Illuminate\Database\Eloquent\Relations\BelongsTo;
 
@@ -20,6 +22,7 @@ use Illuminate\Database\Eloquent\Relations\BelongsTo;
  *
  * @method static DiscordThreadFactory factory(...$parameters)
  */
+#[ObservedBy(DiscordThreadObserver::class)]
 class DiscordThread extends BaseModel
 {
     use HasFactory;
diff --git a/app/Models/User/Submission/SubmissionVirtual.php b/app/Models/User/Submission/SubmissionVirtual.php
index d9e934442..8c758c63f 100644
--- a/app/Models/User/Submission/SubmissionVirtual.php
+++ b/app/Models/User/Submission/SubmissionVirtual.php
@@ -6,6 +6,8 @@ namespace App\Models\User\Submission;
 
 use App\Models\Auth\User;
 use App\Models\BaseModel;
+use App\Observers\User\Submission\SubmissionVirtualObserver;
+use Illuminate\Database\Eloquent\Attributes\ObservedBy;
 use Illuminate\Database\Eloquent\Relations\BelongsTo;
 use Illuminate\Database\Eloquent\Relations\Relation;
 
@@ -18,6 +20,7 @@ use Illuminate\Database\Eloquent\Relations\Relation;
  * @property int $user_id
  * @property User $user
  */
+#[ObservedBy(SubmissionVirtualObserver::class)]
 class SubmissionVirtual extends BaseModel
 {
     final public const string TABLE = 'submission_virtuals';
@@ -68,17 +71,6 @@ class SubmissionVirtual extends BaseModel
         'model',
     ];
 
-    protected static function boot()
-    {
-        parent::boot();
-
-        static::creating(function (SubmissionVirtual $virtual): void {
-            if (class_exists($model = $virtual->model_type)) {
-                $virtual->model_type = Relation::getMorphAlias($model);
-            }
-        });
-    }
-
     public function getName(): string
     {
         return strval($this->getKey());
diff --git a/app/Models/Wiki/Anime/AnimeTheme.php b/app/Models/Wiki/Anime/AnimeTheme.php
index 2f8663e17..ae2c5f6ac 100644
--- a/app/Models/Wiki/Anime/AnimeTheme.php
+++ b/app/Models/Wiki/Anime/AnimeTheme.php
@@ -21,9 +21,11 @@ use App\Models\Wiki\Anime;
 use App\Models\Wiki\Anime\Theme\AnimeThemeEntry;
 use App\Models\Wiki\Group;
 use App\Models\Wiki\Song;
+use App\Observers\Wiki\Anime\AnimeThemeObserver;
 use App\Scopes\WithoutInsertSongScope;
 use Database\Factories\Wiki\Anime\AnimeThemeFactory;
 use Elastic\ScoutDriverPlus\Searchable;
+use Illuminate\Database\Eloquent\Attributes\ObservedBy;
 use Illuminate\Database\Eloquent\Builder;
 use Illuminate\Database\Eloquent\Factories\HasFactory;
 use Illuminate\Database\Eloquent\Relations\BelongsTo;
@@ -47,6 +49,7 @@ use Illuminate\Support\Stringable;
  *
  * @method static AnimeThemeFactory factory(...$parameters)
  */
+#[ObservedBy(AnimeThemeObserver::class)]
 class AnimeTheme extends BaseModel implements InteractsWithSchema, SoftDeletable
 {
     use HasFactory;
diff --git a/app/Observers/Admin/ActionLogObserver.php b/app/Observers/Admin/ActionLogObserver.php
new file mode 100644
index 000000000..5e21cd815
--- /dev/null
+++ b/app/Observers/Admin/ActionLogObserver.php
@@ -0,0 +1,32 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Observers\Admin;
+
+use App\Enums\Models\Admin\ActionLogStatus;
+use App\Models\Admin\ActionLog;
+use Illuminate\Support\Facades\Session;
+
+class ActionLogObserver
+{
+    /**
+     * Handle the ActionLog "creating" event.
+     */
+    public function creating(ActionLog $actionLog): void
+    {
+        if ($actionLog->status === ActionLogStatus::RUNNING) {
+            Session::put('currentActionLog', $actionLog->batch_id);
+        }
+    }
+
+    /**
+     * Handle the ActionLog "updating" event.
+     */
+    public function updating(ActionLog $actionLog): void
+    {
+        if ($actionLog->status === ActionLogStatus::RUNNING) {
+            Session::put('currentActionLog', $actionLog->batch_id);
+        }
+    }
+}
diff --git a/app/Observers/Discord/DiscordThreadObserver.php b/app/Observers/Discord/DiscordThreadObserver.php
new file mode 100644
index 000000000..d1de6716e
--- /dev/null
+++ b/app/Observers/Discord/DiscordThreadObserver.php
@@ -0,0 +1,31 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Observers\Discord;
+
+use App\Actions\Discord\DiscordThreadAction;
+use App\Models\Discord\DiscordThread;
+
+class DiscordThreadObserver
+{
+    /**
+     * Handle the DiscordThread "updated" event.
+     */
+    public function updated(DiscordThread $thread): void
+    {
+        DiscordThreadAction::getHttp()
+            ->put('/thread', $thread->toArray())
+            ->throw();
+    }
+
+    /**
+     * Handle the DiscordThread "deleted" event.
+     */
+    public function deleted(DiscordThread $thread): void
+    {
+        DiscordThreadAction::getHttp()
+            ->delete('/thread', ['id' => $thread->getKey()])
+            ->throw();
+    }
+}
diff --git a/app/Observers/User/Submission/SubmissionVirtualObserver.php b/app/Observers/User/Submission/SubmissionVirtualObserver.php
new file mode 100644
index 000000000..af389acda
--- /dev/null
+++ b/app/Observers/User/Submission/SubmissionVirtualObserver.php
@@ -0,0 +1,21 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Observers\User\Submission;
+
+use App\Models\User\Submission\SubmissionVirtual;
+use Illuminate\Database\Eloquent\Relations\Relation;
+
+class SubmissionVirtualObserver
+{
+    /**
+     * Handle the SubmissionVirtual "creating" event.
+     */
+    public function creating(SubmissionVirtual $virtual): void
+    {
+        if (class_exists($model = $virtual->model_type)) {
+            $virtual->model_type = Relation::getMorphAlias($model);
+        }
+    }
+}
diff --git a/app/Observers/Wiki/Anime/AnimeThemeObserver.php b/app/Observers/Wiki/Anime/AnimeThemeObserver.php
new file mode 100644
index 000000000..eaf7ce810
--- /dev/null
+++ b/app/Observers/Wiki/Anime/AnimeThemeObserver.php
@@ -0,0 +1,24 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Observers\Wiki\Anime;
+
+use App\Models\Wiki\Anime\AnimeTheme;
+
+class AnimeThemeObserver
+{
+    /**
+     * Handle the AnimeTheme "created" event.
+     */
+    public function created(AnimeTheme $theme): void
+    {
+        // Update the sequence attribute of the first theme when creating a new sequence theme.
+        if ($theme->sequence >= 2) {
+            $theme->anime->animethemes()->getQuery()
+                ->where(AnimeTheme::ATTRIBUTE_SEQUENCE)
+                ->where(AnimeTheme::ATTRIBUTE_TYPE, $theme->type)
+                ->update([AnimeTheme::ATTRIBUTE_SEQUENCE => 1]);
+        }
+    }
+}