diff --git a/.devtools/data_generation_scripts/9999_big_stock.php b/.devtools/data_generation_scripts/9999_big_stock.php
new file mode 100644
index 00000000..dd410b86
--- /dev/null
+++ b/.devtools/data_generation_scripts/9999_big_stock.php
@@ -0,0 +1,27 @@
+<?php
+
+// This is executed inside DatabaseMigrationService class/context
+
+use Grocy\Services\StockService;
+
+$PRODUCTS = [3, 4, 5, 6, 7, 8];
+
+$i = 1;
+$days = -1;
+while ($i <= 500)
+{
+	$productId = $PRODUCTS[array_rand($PRODUCTS)];
+	$transactionId1 = $this->getStockService()->AddProduct($productId, 1, date('Y-m-d', strtotime('+180 days')), StockService::TRANSACTION_TYPE_PURCHASE, date('Y-m-d', strtotime("$days days")), XRandomPrice());
+	$transactionId2 = $this->getStockService()->ConsumeProduct($productId, 1, false, StockService::TRANSACTION_TYPE_CONSUME);
+
+	$this->getDatabaseService()->ExecuteDbStatement("UPDATE stock_log SET row_created_timestamp = DATETIME(row_created_timestamp, '$days days') WHERE transaction_id = '$transactionId1'");
+	$this->getDatabaseService()->ExecuteDbStatement("UPDATE stock_log SET row_created_timestamp = DATETIME(row_created_timestamp, '$days days') WHERE transaction_id = '$transactionId2'");
+
+	$days--;
+	$i++;
+}
+
+function XRandomPrice()
+{
+	return mt_rand(2 * 100, 25 * 100) / 100 / 4;
+}
diff --git a/.devtools/data_generation_scripts/9999_lots_recipes.php b/.devtools/data_generation_scripts/9999_lots_recipes.php
new file mode 100644
index 00000000..5669679a
--- /dev/null
+++ b/.devtools/data_generation_scripts/9999_lots_recipes.php
@@ -0,0 +1,16 @@
+<?php
+
+// This is executed inside DatabaseMigrationService class/context
+
+use Grocy\Services\RecipesService;
+
+$recipesService = RecipesService::getInstance();
+
+for ($i = 1; $i <= 87; $i++)
+{
+	$recipesService->CopyRecipe(1);
+	$recipesService->CopyRecipe(2);
+	$recipesService->CopyRecipe(3);
+	$recipesService->CopyRecipe(4);
+	$recipesService->CopyRecipe(5);
+}
diff --git a/.devtools/data_generation_scripts/big_meal_plan.xlsx b/.devtools/data_generation_scripts/big_meal_plan.xlsx
new file mode 100644
index 00000000..b4d0ed96
Binary files /dev/null and b/.devtools/data_generation_scripts/big_meal_plan.xlsx differ