diff --git a/.media/tinywiki/img/fabian-bachli-jQAe44MEIXU-unsplash_MtpktNo.jpg b/.media/tinywiki/img/fabian-bachli-jQAe44MEIXU-unsplash_MtpktNo.jpg
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diff --git a/.media/tinywiki/img/fabian-bachli-jQAe44MEIXU-unsplash_YKJJNDz.jpg b/.media/tinywiki/img/fabian-bachli-jQAe44MEIXU-unsplash_YKJJNDz.jpg
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diff --git a/tinywiki/management/__init__.py b/tinywiki/management/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/tinywiki/management/commands/__init__.py b/tinywiki/management/commands/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/tinywiki/management/commands/twexport.py b/tinywiki/management/commands/twexport.py
new file mode 100644
index 0000000..9aa12ba
--- /dev/null
+++ b/tinywiki/management/commands/twexport.py
@@ -0,0 +1,28 @@
+from django.core.management.base import BaseCommand, CommandError  # noqa
+from ...utils import export_wiki_content
+
+
+class Command(BaseCommand):
+    help = "Export wiki content for an app"
+
+    def add_arguments(self, parser):
+        parser.add_argument('app', nargs=1, type=str)
+        parser.add_argument('--file', type=str)
+        parser.add_argument('--prefix', type=str)
+        parser.add_argument('--page-version', type=int)
+        parser.add_argument('--image-version', type=int)
+
+    def handle(self, *args, **options):
+        app = options['app'][0]
+        page_version = options['page_version']
+        if page_version is None:
+            page_version = 0
+        image_version = options['image_version']
+        if image_version is None:
+            image_version = 0
+        prefix = options['prefix']
+        filename = options['file']
+        if filename is None:
+            filename = f"{app}.tinyiki.zip"
+
+        export_wiki_content(app, filename, prefix, page_version, image_version)
diff --git a/tinywiki/migrations/0002_initial_data.py b/tinywiki/migrations/0002_initial_data.py
index 88d4da4..58b1d7e 100644
--- a/tinywiki/migrations/0002_initial_data.py
+++ b/tinywiki/migrations/0002_initial_data.py
@@ -76,7 +76,7 @@ class Migration(migrations.Migration):
                 data = json.loads(ifile.read())
 
             version = data["version"]
-            app = data["app"]
+            app = 'tinywiki'
             prefix = data['prefix']
 
             for slug, spec in data['pages'].items():
@@ -109,7 +109,7 @@ class Migration(migrations.Migration):
             images_data = json.loads(ifile.read())
 
         version = images_data['version']
-        app = images_data['app']
+        app = 'tinywiki'
         prefix = images_data['prefix']
 
         for slug, _spec in images_data['images'].items():
diff --git a/tinywiki/utils.py b/tinywiki/utils.py
index 6314db9..f1e13e3 100644
--- a/tinywiki/utils.py
+++ b/tinywiki/utils.py
@@ -262,7 +262,7 @@ def import_builtin_images_from_zip(zip: str | Path, user=None):
                 spec['slug'] = slug
                 spec['user'] = user if user else get_tinywiki_default_user()
 
-                img = Imagwith zie(**spec)
+                img = Image(**spec)
                 with zf.open(image_filename) as ifile:
                     img_file = ImageFile(ifile, image_basename)
                     img.image.save(image_basename, img_file)
@@ -271,9 +271,10 @@ def import_builtin_images_from_zip(zip: str | Path, user=None):
             BuiltinImages.objects.create(app=app, prefix=prefix, version=version)
             return True
 
+
 def export_wiki_content(app: str,
                         filename,
-                        prefix: str|None = None,
+                        prefix: str | None = None,
                         page_version: int = 0,
                         image_version: int = 0) -> bool:
     prefix = prefix
@@ -281,7 +282,7 @@ def export_wiki_content(app: str,
         bp = BuiltinPages.objects.get(app=app)
         if page_version < bp.version:
             page_version = bp.version + 1
-        if prefix is None:
+        if not prefix:
             prefix = bp.prefix
     except BuiltinPages.DoesNotExist:
         bp = None
@@ -290,16 +291,16 @@ def export_wiki_content(app: str,
         bi = BuiltinImages.objects.get(app=app)
         if image_version < bi.version:
             image_version = bi.version + 1
-        if prefix is None:
+        if not prefix:
             prefix = bp.prefix
     except BuiltinImages.DoesNotExist:
         bi = None
 
     if not prefix:
-        raise RuntimeError("No slug prefix! Can not export!", file=sys.stderr)
+        raise RuntimeError("No slug prefix! Can not export!")
 
     pages = Page.objects.filter(slug__startswith=prefix)
-    images = Image.objects.filter(slug__statrswith=prefix)
+    images = Image.objects.filter(slug__startswith=prefix)
 
     if not pages and not images:
         return False
@@ -353,7 +354,7 @@ def export_wiki_content(app: str,
                     'description': i.description,
                 }
                 zf.write(i.image.path, arcname)
-            zf.writestr(images.json, json.dumps(images_data, ensure_ascii=False, indent=4))
+            zf.writestr('images.json', json.dumps(images_data, ensure_ascii=False, indent=4))
             if bi:
                 bi.version = image_version
                 bi.save()