diff --git a/README.md b/README.md
index f4a5bcd..400b5fd 100644
--- a/README.md
+++ b/README.md
@@ -122,9 +122,14 @@ The installation script will:
 
 1. Edit environment variables:
 ```bash
-sudo nano /opt/kspguti-schedule/.env.production
+sudo nano /opt/kspguti-schedule/.env
 ```
 
+The installation script will:
+- Copy `.env` file from source directory if it exists
+- Preserve existing `.env` in installation directory if it already exists
+- Create `.env` from `.env.production.example` if no `.env` file is found
+
 2. Update systemd service if needed:
 ```bash
 sudo nano /etc/systemd/system/kspguti-schedule.service
@@ -178,7 +183,7 @@ sudo journalctl -u kspguti-schedule -f
 
 **Environment variables:**
 
-See `.env.production.example` for available options:
+See `.env.production.example` or `.example.env` for available options. The application uses `.env` file in production:
 - `PROXY_URL` - URL for schedule parsing (optional)
 - `PARSING_FAILURE_NOTIFICATIONS_TELEGRAM_BOTAPI_TOKEN` - Telegram bot token (optional)
 - `PARSING_FAILURE_NOTIFICATIONS_TELEGRAM_CHAT_ID` - Telegram chat ID (optional)
diff --git a/scripts/install.sh b/scripts/install.sh
index a0948a0..14dee4b 100755
--- a/scripts/install.sh
+++ b/scripts/install.sh
@@ -133,16 +133,25 @@ rsync -av --exclude='node_modules' \
           --exclude='.next' \
           --exclude='.git' \
           --exclude='*.log' \
-          --exclude='.env*' \
+          --exclude='.env.local' \
+          --exclude='.env.development' \
+          --exclude='.env.development.local' \
+          --exclude='.env.test' \
+          --exclude='.env.test.local' \
           --exclude='*.md' \
           "$PROJECT_DIR/" "$INSTALL_DIR/"
 
-# Create .env.production if it doesn't exist
-if [ ! -f "$INSTALL_DIR/.env.production" ]; then
-    echo -e "${YELLOW}Creating .env.production from example...${NC}"
+# Handle .env file
+if [ -f "$PROJECT_DIR/.env" ] && [ ! -f "$INSTALL_DIR/.env" ]; then
+    echo -e "${YELLOW}Copying .env file...${NC}"
+    cp "$PROJECT_DIR/.env" "$INSTALL_DIR/.env"
+elif [ -f "$INSTALL_DIR/.env" ]; then
+    echo -e "${GREEN}Using existing .env file in installation directory${NC}"
+else
+    echo -e "${YELLOW}No .env file found. Creating from example...${NC}"
     if [ -f "$INSTALL_DIR/.env.production.example" ]; then
-        cp "$INSTALL_DIR/.env.production.example" "$INSTALL_DIR/.env.production"
-        echo -e "${YELLOW}Please edit $INSTALL_DIR/.env.production with your configuration${NC}"
+        cp "$INSTALL_DIR/.env.production.example" "$INSTALL_DIR/.env"
+        echo -e "${YELLOW}Please edit $INSTALL_DIR/.env with your configuration${NC}"
     fi
 fi
 
@@ -191,7 +200,7 @@ systemctl enable "$SERVICE_NAME.service"
 
 echo -e "\n${GREEN}=== Installation completed successfully! ===${NC}\n"
 echo -e "${YELLOW}Next steps:${NC}"
-echo -e "1. Edit environment variables: ${GREEN}$INSTALL_DIR/.env.production${NC}"
+echo -e "1. Edit environment variables: ${GREEN}$INSTALL_DIR/.env${NC}"
 echo -e "2. Update systemd service if needed: ${GREEN}/etc/systemd/system/$SERVICE_NAME.service${NC}"
 echo -e "3. Start the service: ${GREEN}systemctl start $SERVICE_NAME${NC}"
 echo -e "4. Check status: ${GREEN}systemctl status $SERVICE_NAME${NC}"
diff --git a/systemd/kspguti-schedule.service b/systemd/kspguti-schedule.service
index 2868f79..eb7c79b 100644
--- a/systemd/kspguti-schedule.service
+++ b/systemd/kspguti-schedule.service
@@ -17,7 +17,7 @@ Environment=HOSTNAME=0.0.0.0
 # Environment=PARSING_FAILURE_NOTIFICATIONS_TELEGRAM_CHAT_ID=your_chat_id_here
 
 # Load environment variables from file (optional)
-# EnvironmentFile=/opt/kspguti-schedule/.env.production
+# EnvironmentFile=/opt/kspguti-schedule/.env
 
 # Use standalone server from Next.js build
 ExecStart=/usr/bin/node /opt/kspguti-schedule/.next/standalone/server.js