diff --git a/.env.example b/.env.example
new file mode 100644
index 0000000..3aaec2b
--- /dev/null
+++ b/.env.example
@@ -0,0 +1,9 @@
+# Application settings
+TZ=Europe/Moscow
+APP_PORT=8044
+
+MONGO_INITDB_ROOT_USERNAME=qqq
+MONGO_INITDB_ROOT_PASSWORD=qqq
+
+# MongoDB connection string
+MONGO_ADDR=mongodb://qqq:qqq@127.0.0.1:27018
diff --git a/package-lock.json b/package-lock.json
index 8a9bf9e..99d42eb 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -7,6 +7,7 @@
     "": {
       "name": "multi-stub",
       "version": "1.2.1",
+      "hasInstallScript": true,
       "license": "MIT",
       "dependencies": {
         "ai": "^4.1.13",
diff --git a/package.json b/package.json
index 75e1d2d..cc261fe 100644
--- a/package.json
+++ b/package.json
@@ -10,7 +10,8 @@
     "up:prod": "node dist/server/index.js",
     "eslint": "npx eslint ./server",
     "eslint:fix": "npx eslint ./server --fix",
-    "test": "jest"
+    "test": "jest",
+    "postinstall": "node -e \"const fs = require('fs'); const envExample = `# Настройки сервера\\nPORT=3000\\nNODE_ENV=development\\n\\n# Настройки базы данных\\nMONGODB_URI=mongodb://localhost:27017/multi-stub\\n\\n# Настройки JWT\\nJWT_SECRET=your_jwt_secret\\nJWT_EXPIRES_IN=7d\\n\\n# Прочие настройки\\nLOG_LEVEL=info`; if (!fs.existsSync('.env.example')) { fs.writeFileSync('.env.example', envExample); console.log('Created .env.example file'); } if (!fs.existsSync('.env')) { fs.copyFileSync('.env.example', '.env'); console.log('Created .env file from .env.example'); }\""
   },
   "repository": {
     "type": "git",