diff --git a/.gitignore b/.gitignore
index 60feaf0..bb8fc2c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,21 @@
-./src/encrypt_key/
+# Ignore vendor directory (generated by Composer)
+vendor/
+composer.lock
+
+# Ignore IDE-specific files
 .idea/
+.vscode/
+*.sublime-workspace
+*.sublime-project
+
+# Ignore operating system files
+.DS_Store
+Thumbs.db
+
+# Ignore other common backup/editor files
+*~
+*.swp
+*.swo
+
+# Pest / Testing
+/coverage/
diff --git a/composer.json b/composer.json
index deacffc..63d96e5 100644
--- a/composer.json
+++ b/composer.json
@@ -8,15 +8,28 @@
   "authors": [
     {
       "name": "naingaunglwin-dev",
-      "email": "example@gmail.com"
+      "email": "naingaunglwin.wd@gmail.com"
     }
   ],
   "require": {
-    "php": "^8.0"
+    "php": "^8.4"
   },
   "autoload": {
     "psr-4": {
-      "NAL\\Session\\": "src/"
+      "Naingaunglwin\\Session\\": "src/"
+    }
+  },
+  "autoload-dev": {
+    "psr-4": {
+      "Tests\\": "tests/"
+    }
+  },
+  "require-dev": {
+    "pestphp/pest": "^4.3"
+  },
+  "config": {
+    "allow-plugins": {
+      "pestphp/pest-plugin": true
     }
   }
 }