diff --git a/src/config/go.mod b/config/go.mod
similarity index 100%
rename from src/config/go.mod
rename to config/go.mod
diff --git a/src/config/go.sum b/config/go.sum
similarity index 100%
rename from src/config/go.sum
rename to config/go.sum
diff --git a/src/config/loader.go b/config/loader.go
similarity index 100%
rename from src/config/loader.go
rename to config/loader.go
diff --git a/src/config/varpattern.go b/config/varpattern.go
similarity index 100%
rename from src/config/varpattern.go
rename to config/varpattern.go
diff --git a/go.mod b/go.mod
deleted file mode 100644
index 443c0a2..0000000
--- a/go.mod
+++ /dev/null
@@ -1,3 +0,0 @@
-module gitea.meta-tech.academy/go/core
-
-go 1.20
diff --git a/go.sum b/go.sum
deleted file mode 100644
index e69de29..0000000
diff --git a/go.work b/go.work
index add1084..95dca5c 100644
--- a/go.work
+++ b/go.work
@@ -1,9 +1,8 @@
 go 1.20
 
 use (
-	.
-	./src/config
-	./src/style
-	./src/sys
-	./src/util
+	./config
+	./style
+	./sys
+	./util
 )
diff --git a/go.work.sum b/go.work.sum
index 6252bc4..8a453e6 100644
--- a/go.work.sum
+++ b/go.work.sum
@@ -1,2 +1,3 @@
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/stretchr/testify v1.8.4/go.mod h1:sz/lmYIOXD/1dqDmKjjqLyZ2RngseejIcXlSw2iwfAo=
diff --git a/src/style/go.mod b/style/go.mod
similarity index 75%
rename from src/style/go.mod
rename to style/go.mod
index 0548c10..4e4de0b 100644
--- a/src/style/go.mod
+++ b/style/go.mod
@@ -3,7 +3,7 @@ module gitea.meta-tech.academy/go/core/style
 go 1.20
 
 require (
-	gitea.meta-tech.academy/go/core/util v0.0.0-20231102220428-c719e245b956
+	gitea.meta-tech.academy/go/core/util v0.0.0-20231103003446-3792c0f48134
 	github.com/gookit/color v1.5.4
 )
 
diff --git a/src/style/go.sum b/style/go.sum
similarity index 77%
rename from src/style/go.sum
rename to style/go.sum
index 5cb28be..048065f 100644
--- a/src/style/go.sum
+++ b/style/go.sum
@@ -1,5 +1,5 @@
-gitea.meta-tech.academy/go/core/util v0.0.0-20231102220428-c719e245b956 h1:XxyPD/jBTPqrf2o1N3QRmw8fPgvP7G9Z9Ba3DgH/Uz0=
-gitea.meta-tech.academy/go/core/util v0.0.0-20231102220428-c719e245b956/go.mod h1:q+p8vM+aQ36GVspuTTupRBNDUKrsXCccx4k3f7IKfx8=
+gitea.meta-tech.academy/go/core/util v0.0.0-20231103003446-3792c0f48134 h1:DTCBfyJ1HRBThmlYwFU6bLA2JV70inG1Yp/gug/pirk=
+gitea.meta-tech.academy/go/core/util v0.0.0-20231103003446-3792c0f48134/go.mod h1:q+p8vM+aQ36GVspuTTupRBNDUKrsXCccx4k3f7IKfx8=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/gookit/color v1.5.4 h1:FZmqs7XOyGgCAxmWyPslpiok1k05wmY3SJTytgvYFs0=
 github.com/gookit/color v1.5.4/go.mod h1:pZJOeOS8DM43rXbp4AZo1n9zCU2qjpcRko0b6/QJi9w=
diff --git a/src/style/style.go b/style/style.go
similarity index 96%
rename from src/style/style.go
rename to style/style.go
index f29779f..03ac6b0 100644
--- a/src/style/style.go
+++ b/style/style.go
@@ -62,7 +62,7 @@ func NewStyleByDef(def string) *Style {
 	if len(d) > KEY_STYLE_OPTION {
 		o = strings.Split(d[KEY_STYLE_OPTION], ",")
 	}
-	util.prependToSliceStr(&c, "#")
+	util.PrependToSliceStr(&c, "#")
 	var s *color.RGBStyle
 	switch len(c) {
 	case 1:
@@ -72,7 +72,7 @@ func NewStyleByDef(def string) *Style {
 	}
 	for _, elm := range o {
 
-		s.AddOpts(color.Color(util.str2int(elm, 10, 0)))
+		s.AddOpts(color.Color(util.Str2int(elm, 10, 0)))
 	}
 	// s.Printf(" %-20s\n", d[KEY_STYLE_NAME])
 	return &Style{s, d[KEY_STYLE_NAME]}
diff --git a/src/sys/go.mod b/sys/go.mod
similarity index 100%
rename from src/sys/go.mod
rename to sys/go.mod
diff --git a/src/sys/go.sum b/sys/go.sum
similarity index 100%
rename from src/sys/go.sum
rename to sys/go.sum
diff --git a/src/sys/sys.go b/sys/sys.go
similarity index 100%
rename from src/sys/sys.go
rename to sys/sys.go
diff --git a/src/util/go.mod b/util/go.mod
similarity index 100%
rename from src/util/go.mod
rename to util/go.mod
diff --git a/src/util/util.go b/util/util.go
similarity index 52%
rename from src/util/util.go
rename to util/util.go
index bad6353..0352940 100644
--- a/src/util/util.go
+++ b/util/util.go
@@ -5,19 +5,19 @@ import (
 	"strings"
 )
 
-func prependToSliceStr(strs *[]string, prefix string) {
+func PrependToSliceStr(strs *[]string, prefix string) {
 	for i, elm := range *strs {
 		(*strs)[i] = prefix + elm
 	}
 }
 
-func appendToSliceStr(strs *[]string, suffix string) {
+func AppendToSliceStr(strs *[]string, suffix string) {
 	for i, elm := range *strs {
 		(*strs)[i] = elm + suffix
 	}
 }
 
-func str2int64(str string, base int, fallback int64) int64 {
+func Str2int64(str string, base int, fallback int64) int64 {
 	str = strings.TrimSuffix(str, "\n")
 	num, err := strconv.ParseInt(str, base, 64)
 	if err != nil {
@@ -26,14 +26,14 @@ func str2int64(str string, base int, fallback int64) int64 {
 	return num
 }
 
-func str2int(str string, base int, fallback int) int {
-	return int(str2int64(str, base, int64(fallback)))
+func Str2int(str string, base int, fallback int) int {
+	return int(Str2int64(str, base, int64(fallback)))
 }
 
-func castStrings2ints(strs *[]string) []int {
+func CastStrings2ints(strs *[]string) []int {
 	a := make([]int, len(*strs))
 	for i, elm := range *strs {
-		var f int = str2int(elm, 10, 0)
+		var f int = Str2int(elm, 10, 0)
 		a[i] = f
 	}
 	return a