diff --git a/.sisyphus/evidence/task-10-nametag-macro.txt b/.sisyphus/evidence/task-10-nametag-macro.txt
new file mode 100644
index 0000000..da6c9d1
--- /dev/null
+++ b/.sisyphus/evidence/task-10-nametag-macro.txt
@@ -0,0 +1,19 @@
+Task T10 evidence: configured Namenseinblender macro
+
+RED:
+- `ddev exec php artisan test tests/Feature/NameTagSlideBuilderTest.php`
+- Failed with `Target class [App\Services\NameTagSlideBuilder] does not exist.` before implementation.
+
+GREEN:
+- `ddev exec php artisan test tests/Feature/NameTagSlideBuilderTest.php`
+- Result: 3 passed (4 assertions).
+
+Full verification:
+- `ddev exec php artisan test`
+- Result: 544 passed (2703 assertions).
+- `ddev exec ./vendor/bin/pint`
+- Result: PASS, 213 files.
+
+Configured macro contract verified by test:
+- text: `Anna Müller\nModeration`
+- macro keys: `name`, `uuid`, `collectionName`, `collectionUuid`
diff --git a/.sisyphus/evidence/task-10-no-macro.txt b/.sisyphus/evidence/task-10-no-macro.txt
new file mode 100644
index 0000000..e9cee57
--- /dev/null
+++ b/.sisyphus/evidence/task-10-no-macro.txt
@@ -0,0 +1,13 @@
+Task T10 evidence: no Namenseinblender macro configured
+
+Test coverage:
+- `build returns null when namenseinblender macro is not configured`
+- Verifies `NameTagSlideBuilder::build('Max Mustermann', 'Moderation')` returns `null` when `namenseinblender_macro_name` is missing.
+
+Targeted verification:
+- `ddev exec php artisan test tests/Feature/NameTagSlideBuilderTest.php`
+- Result: 3 passed (4 assertions).
+
+Full verification:
+- `ddev exec php artisan test`
+- Result: 544 passed (2703 assertions).
diff --git a/app/Services/NameTagSlideBuilder.php b/app/Services/NameTagSlideBuilder.php
new file mode 100644
index 0000000..658ac96
--- /dev/null
+++ b/app/Services/NameTagSlideBuilder.php
@@ -0,0 +1,37 @@
+<?php
+
+namespace App\Services;
+
+use App\Models\Setting;
+
+class NameTagSlideBuilder
+{
+    public function buildModeratorSlide(string $name): ?array
+    {
+        return $this->build($name, 'Moderation');
+    }
+
+    public function buildPreacherSlide(string $name): ?array
+    {
+        return $this->build($name, 'Predigt');
+    }
+
+    public function build(string $name, string $title): ?array
+    {
+        $macroName = Setting::get('namenseinblender_macro_name');
+
+        if ($macroName === null || trim($macroName) === '') {
+            return null;
+        }
+
+        return [
+            'text' => $name."\n".$title,
+            'macro' => [
+                'name' => $macroName,
+                'uuid' => Setting::get('namenseinblender_macro_uuid'),
+                'collectionName' => Setting::get('namenseinblender_macro_collection_name', '--MAIN--'),
+                'collectionUuid' => Setting::get('namenseinblender_macro_collection_uuid'),
+            ],
+        ];
+    }
+}
diff --git a/tests/Feature/NameTagSlideBuilderTest.php b/tests/Feature/NameTagSlideBuilderTest.php
new file mode 100644
index 0000000..5a17504
--- /dev/null
+++ b/tests/Feature/NameTagSlideBuilderTest.php
@@ -0,0 +1,39 @@
+<?php
+
+use App\Models\Setting;
+use App\Services\NameTagSlideBuilder;
+
+test('build returns null when namenseinblender macro is not configured', function () {
+    expect(app(NameTagSlideBuilder::class)->build('Max Mustermann', 'Moderation'))->toBeNull();
+});
+
+test('build returns text lines and macro when configured', function () {
+    Setting::set('namenseinblender_macro_name', 'Namenseinblender');
+    Setting::set('namenseinblender_macro_uuid', '11111111-1111-1111-1111-111111111111');
+    Setting::set('namenseinblender_macro_collection_name', 'Service Macros');
+    Setting::set('namenseinblender_macro_collection_uuid', '22222222-2222-2222-2222-222222222222');
+
+    $slide = app(NameTagSlideBuilder::class)->build('Anna Müller', 'Moderation');
+
+    expect($slide)->toBe([
+        'text' => "Anna Müller\nModeration",
+        'macro' => [
+            'name' => 'Namenseinblender',
+            'uuid' => '11111111-1111-1111-1111-111111111111',
+            'collectionName' => 'Service Macros',
+            'collectionUuid' => '22222222-2222-2222-2222-222222222222',
+        ],
+    ]);
+});
+
+test('convenience methods use moderator and preacher titles', function () {
+    Setting::set('namenseinblender_macro_name', 'Namenseinblender');
+    Setting::set('namenseinblender_macro_uuid', '11111111-1111-1111-1111-111111111111');
+    Setting::set('namenseinblender_macro_collection_name', 'Service Macros');
+    Setting::set('namenseinblender_macro_collection_uuid', '22222222-2222-2222-2222-222222222222');
+
+    $builder = app(NameTagSlideBuilder::class);
+
+    expect($builder->buildModeratorSlide('Max Mustermann')['text'])->toBe("Max Mustermann\nModeration")
+        ->and($builder->buildPreacherSlide('Erika Beispiel')['text'])->toBe("Erika Beispiel\nPredigt");
+});