diff --git a/backend/config/main-local.php b/backend/config/main-local.php
new file mode 100644
index 0000000..e919544
--- /dev/null
+++ b/backend/config/main-local.php
@@ -0,0 +1,24 @@
+<?php
+
+$config = [
+    'components' => [
+        'request' => [
+            // !!! insert a secret key in the following (if it is empty) - this is required by cookie validation
+            'cookieValidationKey' => 'F6f1zNftWODvpoKEftccK0nGjnlGGC_a',
+        ],
+    ]
+];
+
+if (!YII_ENV_TEST) {
+    // configuration adjustments for 'dev' environment
+    $config['bootstrap'][] = 'debug';
+    $config['modules']['debug'] = [
+        'class' => 'yii\debug\Module',
+        'allowedIPs' => ['77.47.190.198', '::80']
+    ];
+
+    $config['bootstrap'][] = 'gii';
+    $config['modules']['gii'] = 'yii\gii\Module';
+}
+
+return $config;
diff --git a/backend/config/params-local.php b/backend/config/params-local.php
new file mode 100644
index 0000000..d0b9c34
--- /dev/null
+++ b/backend/config/params-local.php
@@ -0,0 +1,3 @@
+<?php
+return [
+];
--
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