diff --git a/config/config.go b/config/config.go
index b50a576..25953f0 100644
--- a/config/config.go
+++ b/config/config.go
@@ -4,6 +4,7 @@ import (
 	"fmt"
 	"os"
 	"path/filepath"
+	"reflect"
 	"sort"
 	"strings"
 
@@ -46,6 +47,21 @@ func LoadFromPath[T any](val *T, cfgPath string) {
 		return err
 	})
 
+	valType := reflect.TypeOf(val)
+	for {
+		if valType.Kind() != reflect.Ptr {
+			break
+		}
+
+		valType = valType.Elem()
+	}
+	if valType.Kind() != reflect.Struct {
+		log.Panic().
+			Str("config_path", cfgPath).
+			Str("type", fmt.Sprintf("%#v", val)).
+			Msg("config type not correct")
+	}
+
 	parentDir := filepath.Dir(cfgPath)
 	configBytes := result.Of(os.ReadFile(cfgPath)).Expect("failed to read config data: %s", cfgPath)
 	configBytes = result.Of(envsubst.Bytes(configBytes)).Expect("failed to handler config env data: %s", cfgPath)
@@ -140,7 +156,12 @@ func LoadFromPath[T any](val *T, cfgPath string) {
 	assert.Exit(Merge(val, cfgList...), "failed to merge config")
 }
 
-func Load[T any]() T {
+type Cfg[T any] struct {
+	T T
+	P *T
+}
+
+func Load[T any]() Cfg[T] {
 	if configPath != "" {
 		configDir = filepath.Dir(configPath)
 	} else {
@@ -149,5 +170,5 @@ func Load[T any]() T {
 
 	var cfg T
 	LoadFromPath(&cfg, configPath)
-	return cfg
+	return Cfg[T]{T: cfg, P: &cfg}
 }
diff --git a/config/util.go b/config/util.go
index f56dcda..3e3a6b8 100644
--- a/config/util.go
+++ b/config/util.go
@@ -59,7 +59,7 @@ func getConfigPath(name, typ string, configDir ...string) (string, string) {
 		}
 	}
 
-	log.Fatal().Msgf("config not found in: %v", notFoundPath)
+	log.Panic().Msgf("config not found in: %v", notFoundPath)
 
 	return "", ""
 }
diff --git a/env/util.go b/env/util.go
index 42dd3bb..d5ed792 100644
--- a/env/util.go
+++ b/env/util.go
@@ -2,13 +2,23 @@ package env
 
 import (
 	"strings"
+
+	strcase "github.com/ettle/strcase"
 )
 
+var replacer = strcase.NewCaser(
+	true,
+	map[string]bool{"SSL": true, "HTML": false},
+	strcase.NewSplitFn(
+		[]rune{'*', '.', ',', '-', '/'},
+		strcase.SplitCase,
+		strcase.SplitAcronym,
+		strcase.PreserveNumberFormatting,
+	))
 var trim = strings.TrimSpace
-var replacer = strings.NewReplacer("-", "_", ".", "_", "/", "_")
 
 func KeyHandler(key string) string {
-	return strings.ToUpper(trim(strings.ReplaceAll(replacer.Replace(key), "__", "_")))
+	return strings.ToUpper(trim(strings.ReplaceAll(replacer.ToSNAKE(key), "__", "_")))
 }
 
 // Normalize a-b=>a_b, a.b=>a_b, a/b=>a_b
diff --git a/env/util_test.go b/env/util_test.go
index beb375b..1846b4d 100644
--- a/env/util_test.go
+++ b/env/util_test.go
@@ -9,5 +9,5 @@ import (
 func TestNormalize(t *testing.T) {
 	k, ok := Normalize("aA-bS3_AK/c.d")
 	assert.True(t, ok)
-	assert.Equal(t, k, "AA_BS3_AK_C_D")
+	assert.Equal(t, k, "A_A_B_S3_AK_C_D")
 }
diff --git a/go.mod b/go.mod
index 7cdf315..029416d 100644
--- a/go.mod
+++ b/go.mod
@@ -12,6 +12,7 @@ require (
 	github.com/dave/jennifer v1.7.0
 	github.com/deckarep/golang-set/v2 v2.6.0
 	github.com/dustin/go-humanize v1.0.0
+	github.com/ettle/strcase v0.2.0
 	github.com/expr-lang/expr v1.16.9
 	github.com/flosch/pongo2/v6 v6.0.0
 	github.com/goccy/go-json v0.10.2
diff --git a/go.sum b/go.sum
index 55193b1..ff6d823 100644
--- a/go.sum
+++ b/go.sum
@@ -73,6 +73,8 @@ github.com/docker/go-units v0.5.0 h1:69rxXcBk27SvSaaxTtLh/8llcHD8vYHT7WSdRZ/jvr4
 github.com/docker/go-units v0.5.0/go.mod h1:fgPhTUdO+D/Jk86RDLlptpiXQzgHJF7gydDDbaIK4Dk=
 github.com/dustin/go-humanize v1.0.0 h1:VSnTsYCnlFHaM2/igO1h6X3HA71jcobQuxemgkq4zYo=
 github.com/dustin/go-humanize v1.0.0/go.mod h1:HtrtbFcZ19U5GC7JDqmcUSB87Iq5E25KnS6fMYU6eOk=
+github.com/ettle/strcase v0.2.0 h1:fGNiVF21fHXpX1niBgk0aROov1LagYsOwV/xqKDKR/Q=
+github.com/ettle/strcase v0.2.0/go.mod h1:DajmHElDSaX76ITe3/VHVyMin4LWSJN5Z909Wp+ED1A=
 github.com/expr-lang/expr v1.16.9 h1:WUAzmR0JNI9JCiF0/ewwHB1gmcGw5wW7nWt8gc6PpCI=
 github.com/expr-lang/expr v1.16.9/go.mod h1:8/vRC7+7HBzESEqt5kKpYXxrxkr31SaO8r40VO/1IT4=
 github.com/felixge/httpsnoop v1.0.4 h1:NFTV2Zj1bL4mc9sqWACXbQFVBBg2W3GPvqp8/ESS2Wg=