diff --git a/debug_paths.php b/debug_paths.php
new file mode 100644
index 0000000..006dcb7
--- /dev/null
+++ b/debug_paths.php
@@ -0,0 +1,19 @@
+<?php
+require_once __DIR__ . '/app/bootstrap/init.php';
+
+echo "ROOT_PATH: " . ROOT_PATH . PHP_EOL;
+echo "STORAGE_PATH: " . STORAGE_PATH . PHP_EOL;
+echo "Is STORAGE_PATH dir? " . (is_dir(STORAGE_PATH) ? 'YES' : 'NO') . PHP_EOL;
+echo "Is STORAGE_PATH writable? " . (is_writable(STORAGE_PATH) ? 'YES' : 'NO') . PHP_EOL;
+echo "Current User: " . get_current_user() . PHP_EOL;
+echo "PHP User: " . exec('whoami') . PHP_EOL;
+
+$testDir = STORAGE_PATH . '/test_mkdir_' . time();
+if (mkdir($testDir, 0777, true)) {
+    echo "Successfully created test dir: $testDir" . PHP_EOL;
+    rmdir($testDir);
+} else {
+    echo "FAILED to create test dir: $testDir" . PHP_EOL;
+    $err = error_get_last();
+    echo "Error: " . ($err['message'] ?? 'Unknown') . PHP_EOL;
+}