diff --git a/data/data.json b/data/data.json
index 0702d58..b333175 100644
--- a/data/data.json
+++ b/data/data.json
@@ -1,7 +1,7 @@
 {
   "apps": {
     "nvim": {
-      "files": [
+      "paths": [
         {
           "internal": "config/nvim/init.vim",
           "external": "~/.config/nvim/init.vim"
diff --git a/pkg/config/config_real.go b/pkg/config/config_real.go
index 16a6793..6e855ae 100644
--- a/pkg/config/config_real.go
+++ b/pkg/config/config_real.go
@@ -27,8 +27,7 @@ type configApps struct {
 
 // Read from file
 type App struct {
-	Files []Path `json:"files"`
-	Dirs  []Path `json:"dirs"`
+	Paths []Path `json:"paths"`
 }
 
 type Path struct {
@@ -64,18 +63,12 @@ func LoadConfig(path string) (*config, *configDemo, error) {
 	return &cfg, &cfgDemo, nil
 }
 
-// internal -> external
+// Install replace src internal dst external
 func (c *config) Install() error {
 	for _, app := range c.Apps {
-		for _, file := range app.Files {
-			if err := copy.Replace(file.Internal, file.External); err != nil {
-				return fmt.Errorf("failed to remove and copy from %s to %s: %w", file.Internal, file.External, err)
-			}
-		}
-
-		for _, dir := range app.Dirs {
-			if err := copy.Replace(dir.Internal, dir.External); err != nil {
-				return fmt.Errorf("failed to remove and copy from %s to %s: %w", dir.Internal, dir.External, err)
+		for _, path := range app.Paths {
+			if err := copy.Replace(path.Internal, path.External); err != nil {
+				return fmt.Errorf("failed to replace src %s dst %s: %w", path.Internal, path.External, err)
 			}
 		}
 	}
@@ -83,18 +76,12 @@ func (c *config) Install() error {
 	return nil
 }
 
-// external -> internal
+// Update replace src external dst internal
 func (c *config) Update() error {
 	for _, app := range c.Apps {
-		for _, file := range app.Files {
-			if err := copy.Replace(file.External, file.Internal); err != nil {
-				return fmt.Errorf("failed to remove and copy from %s to %s: %w", file.External, file.Internal, err)
-			}
-		}
-
-		for _, dir := range app.Dirs {
-			if err := copy.Replace(dir.External, dir.Internal); err != nil {
-				return fmt.Errorf("failed to remove and copy from %s to %s: %w", dir.External, dir.Internal, err)
+		for _, path := range app.Paths {
+			if err := copy.Replace(path.External, path.Internal); err != nil {
+				return fmt.Errorf("failed to replace src %s dst %s: %w", path.External, path.Internal, err)
 			}
 		}
 	}
@@ -102,15 +89,17 @@ func (c *config) Update() error {
 	return nil
 }
 
+// Clean remove unused config inside config dir
 func (c *config) Clean() error {
 	files, err := os.ReadDir(configDirPath)
 	if err != nil {
 		return fmt.Errorf("failed to read dir %s: %w", configDirPath, err)
 	}
 
-	// get all dirs inside config dir
+	// Get all dirs inside config dir
 	unusedDirs := make(map[string]struct{})
 	for _, file := range files {
+		// Ignore config file
 		if file.Name() == configFile {
 			continue
 		}
@@ -118,12 +107,12 @@ func (c *config) Clean() error {
 		unusedDirs[file.Name()] = struct{}{}
 	}
 
-	// removed used dirs
+	// Removed used dirs
 	for name := range c.Apps {
 		delete(unusedDirs, name)
 	}
 
-	// delete ununsed dirs to save some space
+	// Delete ununsed dirs to save some space
 	for dir := range unusedDirs {
 		dirPath := filepath.Join(configDirPath, dir)
 		if err := os.RemoveAll(dirPath); err != nil {