diff --git a/config.go b/config.go
index 840f70a..bfa4293 100644
--- a/config.go
+++ b/config.go
@@ -19,6 +19,8 @@ import (
 	"fmt"
 	"github.com/gin-gonic/gin"
 	"github.com/taouniverse/tao"
+	"net/http"
+	"net/http/pprof"
 )
 
 // ConfigKey for this repo
@@ -59,9 +61,9 @@ var defaultGin = &Config{
 	RunAfters: []string{},
 }
 
-// Default config
-func (g Config) Default() tao.Config {
-	return defaultGin
+// Name of Config
+func (g *Config) Name() string {
+	return ConfigKey
 }
 
 // ValidSelf with some default values
@@ -130,3 +132,31 @@ func (g *Config) ToTask() tao.Task {
 func (g *Config) RunAfter() []string {
 	return g.RunAfters
 }
+
+/**
+middlewares
+*/
+
+// pprofOption for gin.Engine
+func pprofOption(engin *gin.Engine, g *Config) {
+	pp := engin.Group(g.Pprof.Prefix)
+
+	var pprofHandler = func(h http.HandlerFunc) gin.HandlerFunc {
+		return func(c *gin.Context) {
+			h.ServeHTTP(c.Writer, c.Request)
+		}
+	}
+
+	pp.GET("/", pprofHandler(pprof.Index))
+	pp.GET("/cmdline", pprofHandler(pprof.Cmdline))
+	pp.GET("/profile", pprofHandler(pprof.Profile))
+	pp.POST("/symbol", pprofHandler(pprof.Symbol))
+	pp.GET("/symbol", pprofHandler(pprof.Symbol))
+	pp.GET("/trace", pprofHandler(pprof.Trace))
+	pp.GET("/allocs", pprofHandler(pprof.Handler("allocs").ServeHTTP))
+	pp.GET("/block", pprofHandler(pprof.Handler("block").ServeHTTP))
+	pp.GET("/goroutine", pprofHandler(pprof.Handler("goroutine").ServeHTTP))
+	pp.GET("/heap", pprofHandler(pprof.Handler("heap").ServeHTTP))
+	pp.GET("/mutex", pprofHandler(pprof.Handler("mutex").ServeHTTP))
+	pp.GET("/threadcreate", pprofHandler(pprof.Handler("threadcreate").ServeHTTP))
+}
diff --git a/config_test.go b/config_test.go
new file mode 100644
index 0000000..dff4a36
--- /dev/null
+++ b/config_test.go
@@ -0,0 +1,29 @@
+// Copyright 2022 huija
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package gin
+
+import (
+	"github.com/stretchr/testify/assert"
+	"testing"
+)
+
+func TestConfig(t *testing.T) {
+	g := new(Config)
+	g.ValidSelf()
+	assert.EqualValues(t, g, defaultGin)
+
+	t.Log(g.RunAfter())
+	t.Log(g.ToTask())
+}
diff --git a/gin.go b/gin.go
index cb9c10a..270b4d3 100644
--- a/gin.go
+++ b/gin.go
@@ -19,6 +19,20 @@ import (
 	"github.com/taouniverse/tao"
 )
 
+/**
+import _ "github.com/taouniverse/tao-gin"
+*/
+
+// G config of gin
+var G = new(Config)
+
+func init() {
+	err := tao.Register(ConfigKey, G, setup)
+	if err != nil {
+		panic(err.Error())
+	}
+}
+
 // Engine of gin implements http.Handler
 var Engine *gin.Engine
 
diff --git a/gin_test.go b/gin_test.go
index fb816ee..48a3623 100644
--- a/gin_test.go
+++ b/gin_test.go
@@ -23,6 +23,9 @@ import (
 )
 
 func TestTao(t *testing.T) {
+	err := tao.SetConfigPath("./test.yaml")
+	assert.Nil(t, err)
+
 	group := Engine.Group("/")
 
 	group.GET("/", func(context *gin.Context) {
@@ -37,6 +40,6 @@ func TestTao(t *testing.T) {
 		})
 	})
 
-	err := tao.Run(nil, nil)
+	err = tao.Run(nil, nil)
 	assert.Nil(t, err)
 }
diff --git a/go.mod b/go.mod
index 3b25464..983d954 100644
--- a/go.mod
+++ b/go.mod
@@ -5,7 +5,7 @@ go 1.17
 require (
 	github.com/gin-gonic/gin v1.7.7
 	github.com/stretchr/testify v1.7.0
-	github.com/taouniverse/tao v0.1.2
+	github.com/taouniverse/tao v0.1.5
 )
 
 require (
diff --git a/go.sum b/go.sum
index d950b99..4f8372a 100644
--- a/go.sum
+++ b/go.sum
@@ -40,8 +40,8 @@ github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UV
 github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
 github.com/stretchr/testify v1.7.0 h1:nwc3DEeHmmLAfoZucVR881uASk0Mfjw8xYJ99tb5CcY=
 github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
-github.com/taouniverse/tao v0.1.2 h1:6Mb5arBm0wEd8X/mS6kE9FhAwwerWdvmY4JOGlyFiNA=
-github.com/taouniverse/tao v0.1.2/go.mod h1:SBKOGf189LJQenjuqnp1Qsb6FYgoryRCjOIRtFuw3fU=
+github.com/taouniverse/tao v0.1.4 h1:iNWHq7tL5aXoVW7ahFl+ddKB8uANYApwvFlxODig+es=
+github.com/taouniverse/tao v0.1.4/go.mod h1:1YIQijX7HrVBicOsxJUcE/VzS1VLIq06UGzWzrTgyqg=
 github.com/ugorji/go v1.1.7 h1:/68gy2h+1mWMrwZFeD1kQialdSzAb432dtpeJ42ovdo=
 github.com/ugorji/go v1.1.7/go.mod h1:kZn38zHttfInRq0xu/PH0az30d+z6vm202qpg1oXVMw=
 github.com/ugorji/go/codec v1.1.7 h1:2SvQaVZ1ouYrrKKwoSk2pzd4A9evlKJb9oTL+OaLUSs=
diff --git a/init.go b/init.go
deleted file mode 100644
index 3208bbd..0000000
--- a/init.go
+++ /dev/null
@@ -1,57 +0,0 @@
-// Copyright 2021
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package gin
-
-import (
-	"encoding/json"
-	"github.com/taouniverse/tao"
-)
-
-/**
-import _ "github.com/taouniverse/tao-gin"
-*/
-
-// G config of gin
-var G = new(Config)
-
-func init() {
-	err := tao.Register(ConfigKey, func() error {
-		// 1. transfer config bytes to object
-		bytes, err := tao.GetConfigBytes(ConfigKey)
-		if err != nil {
-			G = G.Default().(*Config)
-		} else {
-			err = json.Unmarshal(bytes, &G)
-			if err != nil {
-				return err
-			}
-		}
-
-		// gin config
-		G.ValidSelf()
-
-		// 2. set object to tao
-		err = tao.SetConfig(ConfigKey, G)
-		if err != nil {
-			return err
-		}
-
-		// gin setup
-		return setup()
-	})
-	if err != nil {
-		panic(err.Error())
-	}
-}
diff --git a/middlewares.go b/middlewares.go
deleted file mode 100644
index ea58989..0000000
--- a/middlewares.go
+++ /dev/null
@@ -1,45 +0,0 @@
-// Copyright 2022 huija
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package gin
-
-import (
-	"github.com/gin-gonic/gin"
-	"net/http"
-	"net/http/pprof"
-)
-
-// pprofOption for gin.Engine
-func pprofOption(engin *gin.Engine, g *Config) {
-	pp := engin.Group(g.Pprof.Prefix)
-
-	var pprofHandler = func(h http.HandlerFunc) gin.HandlerFunc {
-		return func(c *gin.Context) {
-			h.ServeHTTP(c.Writer, c.Request)
-		}
-	}
-
-	pp.GET("/", pprofHandler(pprof.Index))
-	pp.GET("/cmdline", pprofHandler(pprof.Cmdline))
-	pp.GET("/profile", pprofHandler(pprof.Profile))
-	pp.POST("/symbol", pprofHandler(pprof.Symbol))
-	pp.GET("/symbol", pprofHandler(pprof.Symbol))
-	pp.GET("/trace", pprofHandler(pprof.Trace))
-	pp.GET("/allocs", pprofHandler(pprof.Handler("allocs").ServeHTTP))
-	pp.GET("/block", pprofHandler(pprof.Handler("block").ServeHTTP))
-	pp.GET("/goroutine", pprofHandler(pprof.Handler("goroutine").ServeHTTP))
-	pp.GET("/heap", pprofHandler(pprof.Handler("heap").ServeHTTP))
-	pp.GET("/mutex", pprofHandler(pprof.Handler("mutex").ServeHTTP))
-	pp.GET("/threadcreate", pprofHandler(pprof.Handler("threadcreate").ServeHTTP))
-}
diff --git a/conf/config.yaml b/test.yaml
similarity index 100%
rename from conf/config.yaml
rename to test.yaml