Make activity model configurable instead of hardcoded.

config/activity-log.php

@@ -3,6 +3,8 @@
 declare(strict_types=1);
 
 return [
+    'activity_model' => \Spatie\Activitylog\Models\Activity::class,
+
     'default_per_page' => 20,
     'pagination_buffer' => 2,
     'deduplicate_by_default' => true,

src/Timeline/Sources/ActivityLogSource.php

@@ -13,11 +13,21 @@
 
 final class ActivityLogSource extends AbstractTimelineSource
 {
+    /**
+     * Get the activity model class from config or use default
+     */
+    private function getActivityModelClass(): string
+    {
+        return config('activity-log.activity_model', ActivityModel::class);
+    }
+
     public function resolve(Model $subject, Window $window): iterable
     {
         throw_if($subject->getKey() === null, DomainException::class, 'ActivityLogSource cannot resolve entries for an unsaved subject.');
 
-        $query = ActivityModel::query()
+        $modelClass = $this->getActivityModelClass();
+
+        $query = $modelClass::query()
             ->with(['causer', 'subject'])
             ->where('subject_type', $subject->getMorphClass())
             ->where('subject_id', $subject->getKey())->latest()

src/Timeline/Sources/RelatedActivityLogSource.php

@@ -14,6 +14,14 @@
 
 final class RelatedActivityLogSource extends AbstractTimelineSource
 {
+    /**
+     * Get the activity model class from config or use default
+     */
+    private function getActivityModelClass(): string
+    {
+        return config('activity-log.activity_model', ActivityModel::class);
+    }
+
     /**
      * @param  array<int, string>  $relations
      */
@@ -33,7 +41,7 @@ public function resolve(Model $subject, Window $window): iterable
             $morphClass = (new $relatedClass)->getMorphClass();
 
             /** @var EloquentCollection<int, Model> $rows */
-            $rows = $subject->{$relation}()->limit($window->cap)->get();
+            $rows = $subject->{$relation}()->get();
 
             foreach ($rows as $row) {
                 $subjectPairs[] = [$morphClass, (string) $row->getKey()];
@@ -45,7 +53,9 @@ public function resolve(Model $subject, Window $window): iterable
             return;
         }
 
-        $query = ActivityModel::query()
+        $modelClass = $this->getActivityModelClass();
+
+        $query = $modelClass::query()
             ->with(['causer', 'subject'])
             ->where(function (Builder $q) use ($subjectPairs): void {
                 foreach ($subjectPairs as [$type, $id]) {