diff --git a/devo.conf b/devo.conf
index 14d5156..ac30dd5 100644
--- a/devo.conf
+++ b/devo.conf
@@ -1,15 +1,17 @@
 # relational database(PostgresQL) credentials
-# POSTGRES_HOST=
-# POSTGRES_DB=
-# POSTGRES_USER=
-# POSTGRES_PASSWORD=
+# WARNING: Use these values only for local development
+# POSTGRES_HOST=localhost
+# POSTGRES_DB=db
+# POSTGRES_USER=admin_postgres_user
+# POSTGRES_PASSWORD=admin_postgres_password
 
 # file storage (S3) credentials
-# S3_ENDPOINT=
-# MINIO_ROOT_USER=
-# MINIO_ROOT_PASSWORD=
+# WARNING: Use these values only for local development
+# S3_ENDPOINT=http://localhost:9000
+# MINIO_ROOT_USER=admin_minio_user
+# MINIO_ROOT_PASSWORD=admin_minio_password
 
-# Telegram bot credentials
+# Telegram bot credentials (from BotFather)
 # TELEGRAM_BOT_TOKEN=
 # TELEGRAM_BOT_NAME=