diff --git a/mandelstudio/management/commands/purge_demo_data.py b/mandelstudio/management/commands/purge_demo_data.py
index 6e75f46..72ab01c 100644
--- a/mandelstudio/management/commands/purge_demo_data.py
+++ b/mandelstudio/management/commands/purge_demo_data.py
@@ -21,7 +21,10 @@ class PurgeStats:
 
 
 class Command(BaseCommand):
-    help = "Remove demo pages/products from Mandel Blog while preserving idea marketplace content."
+    help = (
+        "Remove demo pages/products from Mandel Blog while preserving "
+        "idea marketplace content."
+    )
 
     def add_arguments(self, parser):
         parser.add_argument(
@@ -47,7 +50,11 @@ class Command(BaseCommand):
         stats = PurgeStats(pages=page_count, products=product_count)
 
         mode = "DRY RUN" if dry_run else "APPLIED"
-        self.stdout.write(self.style.SUCCESS(f"[{mode}] Removed pages={stats.pages}, products={stats.products}"))
+        self.stdout.write(
+            self.style.SUCCESS(
+                f"[{mode}] Removed pages={stats.pages}, products={stats.products}"
+            )
+        )
 
     def _purge_pages(self, *, dry_run: bool) -> int:
         from wagtail.models import Page
@@ -87,7 +94,10 @@ class Command(BaseCommand):
         removed = 0
         for page in candidates:
             removed += 1
-            self.stdout.write(f"PAGE {'[dry-run] ' if dry_run else ''}delete id={page.id} slug={page.slug} title={page.title}")
+            self.stdout.write(
+                f"PAGE {'[dry-run] ' if dry_run else ''}delete id={page.id} "
+                f"slug={page.slug} title={page.title}"
+            )
             if not dry_run:
                 page.delete()
         return removed
@@ -105,7 +115,13 @@ class Command(BaseCommand):
         if keep_only_idea_products:
             candidates = products.exclude(title__in=IDEA_PRODUCT_TITLES)
         else:
-            title_markers = ["demo", "sample", "placeholder", "starter website", "business website"]
+            title_markers = [
+                "demo",
+                "sample",
+                "placeholder",
+                "starter website",
+                "business website",
+            ]
             candidates = [
                 p
                 for p in products
diff --git a/mandelstudio/ocyan.json b/mandelstudio/ocyan.json
index 30cfaae..b9e45b7 100644
--- a/mandelstudio/ocyan.json
+++ b/mandelstudio/ocyan.json
@@ -2,7 +2,6 @@
   "ocyan_plugins": [
     "ocyan.plugin.contact_form",
     "ocyan.plugin.cookie_jar",
-    "ocyan.plugin.demo_data",
     "ocyan.plugin.django",
     "ocyan.plugin.newsletter",
     "ocyan.plugin.oscar",
@@ -15,7 +14,6 @@
     "ocyan.plugin.oscar_partner",
     "ocyan.plugin.oscar_shipping",
     "ocyan.plugin.oscar_sequential_order_numbers",
-    "ocyan.plugin.payment_dummy",
     "ocyan.plugin.roadrunner_bs5",
     "ocyan.plugin.template_engine",
     "ocyan.plugin.roadrunner_productchooser",
@@ -65,9 +63,6 @@
         "en"
       ]
     },
-    "ocyan_dummy_payment_plugin": {
-      "help_text": "Hit pay, to simulate payment."
-    },
     "oscar": {
       "allow_anon_checkout": true,
       "cancelled_order_status": "cancelled",