diff --git a/bin/syz.go b/bin/syz.go
index 131282e..b0a6f29 100644
--- a/bin/syz.go
+++ b/bin/syz.go
@@ -2,7 +2,6 @@ package main
 
 import (
 	"context"
-	"fmt"
 	"log/slog"
 	"net/http"
 	"os"
@@ -40,14 +39,13 @@ var rootCmd = &cobra.Command{
 			return
 		}
 
-		if err := store.Migrate(ctx); err != nil {
-			cancel()
-			slog.Error("store migrate failed", "err", err)
-			return
-		}
+		// if err := store.Migrate(ctx); err != nil {
+		// 	cancel()
+		// 	slog.Error("store migrate failed", "err", err)
+		// 	return
+		// }
 
-		addr := fmt.Sprintf("%s:%d", config.Addr, config.Port)
-		s := server.NewServer(ctx, addr, store)
+		s := server.NewServer(ctx, config, store)
 
 		c := make(chan os.Signal, 1)
 
@@ -78,11 +76,14 @@ func init() {
 	rootCmd.PersistentFlags().String("mode", "dev", `mode of server, can be "prod" or "dev"`)
 	rootCmd.PersistentFlags().String("addr", "0.0.0.0", "address of server")
 	rootCmd.PersistentFlags().Int("port", 8080, "port of server")
-	rootCmd.PersistentFlags().String("dsn", "", "database source name")
+	rootCmd.PersistentFlags().String("dsn", "postgresql://syz:syz_passwd@localhost:5432/syz?sslmode=disable", "database source name")
 
 	if err := viper.BindPFlags(rootCmd.PersistentFlags()); err != nil {
 		panic(err)
 	}
+
+	viper.SetEnvPrefix("syz")
+	viper.AutomaticEnv()
 }
 
 func main() {
diff --git a/config/config.go b/config/config.go
index bb5198d..23fd227 100644
--- a/config/config.go
+++ b/config/config.go
@@ -10,7 +10,7 @@ type Config struct {
 }
 
 func (c *Config) Validate() error {
-	if c.Mode != "debug" && c.Mode != "release" {
+	if c.Mode != "dev" && c.Mode != "prod" {
 		return fmt.Errorf("invalid mode: %s", c.Mode)
 	}
 
diff --git a/server/server.go b/server/server.go
index f54f4fe..a7e5aed 100644
--- a/server/server.go
+++ b/server/server.go
@@ -2,11 +2,13 @@ package server
 
 import (
 	"context"
+	"fmt"
 	"log/slog"
 	"net"
 	"net/http"
 	"time"
 
+	"git.zhouxhere.com/zhouxhere/syz/config"
 	"git.zhouxhere.com/zhouxhere/syz/store"
 	"github.com/gin-gonic/gin"
 	"github.com/pkg/errors"
@@ -15,23 +17,32 @@ import (
 )
 
 type Server struct {
-	addr       string
+	config     *config.Config
 	Store      *store.Store
 	httpServer *http.Server
 	grpcServer *grpc.Server
 }
 
-func NewServer(ctx context.Context, addr string, store *store.Store) *Server {
+func NewServer(ctx context.Context, config *config.Config, store *store.Store) *Server {
 	s := &Server{
 		Store: store,
 	}
 
-	s.addr = addr
+	s.config = config
+
+	if config.Mode == "prod" {
+		gin.SetMode(gin.ReleaseMode)
+	} else {
+		gin.SetMode(gin.DebugMode)
+	}
+
 	ginServer := gin.Default()
+	addr := fmt.Sprintf("%s:%d", config.Addr, config.Port)
 	s.httpServer = &http.Server{
 		Addr:    addr,
 		Handler: ginServer,
 	}
+
 	grpcServer := grpc.NewServer()
 	s.grpcServer = grpcServer
 
@@ -39,7 +50,8 @@ func NewServer(ctx context.Context, addr string, store *store.Store) *Server {
 }
 
 func (s *Server) Start(ctx context.Context) error {
-	listener, err := net.Listen("tcp", s.addr)
+	addr := fmt.Sprintf("%s:%d", s.config.Addr, s.config.Port)
+	listener, err := net.Listen("tcp", addr)
 	if err != nil {
 		return errors.Wrap(err, "failed to listen")
 	}