diff --git a/overlays/dev/kustomization.yaml b/overlays/dev/kustomization.yaml
deleted file mode 100644
index 7076c16..0000000
--- a/overlays/dev/kustomization.yaml
+++ /dev/null
@@ -1,19 +0,0 @@
-apiVersion: kustomize.config.k8s.io/v1beta1
-kind: Kustomization
-
-resources:
-  - ../../base
-
-namespace: intern-workspace
-namePrefix: dev-
-commonLabels:
-  environment: dev
-
-images:
-  - name: docker.io/adelyao/employee-be
-    newTag: latest
-  - name: docker.io/adelyao/employee-fe
-    newTag: latest
-
-patches:
-  - path: patch-deployment.yaml
\ No newline at end of file
diff --git a/overlays/dev/patch-deployment.yaml b/overlays/dev/patch-deployment.yaml
deleted file mode 100644
index f7bd456..0000000
--- a/overlays/dev/patch-deployment.yaml
+++ /dev/null
@@ -1,35 +0,0 @@
-apiVersion: apps/v1
-kind: Deployment
-metadata:
-  name: backend-deployment
-spec:
-  replicas: 2
-  template:
-    spec:
-      containers:
-        - name: employee-backend
-          imagePullPolicy: Always
-          env:
-            - name: NODE_ENV
-              value: "development"
-            - name: LOG_LEVEL
-              value: "debug"
-          image: docker.io/adelyao/employee-be:build-28
----
-apiVersion: apps/v1
-kind: Deployment
-metadata:
-  name: frontend-deployment
-spec:
-  replicas: 2
-  template:
-    spec:
-      containers:
-        - name: employee-frontend
-          imagePullPolicy: Always
-          env:
-            - name: VITE_API_URL
-              value: "http://backend-service:4000"
-            - name: MODE
-              value: "development"
-          image: docker.io/adelyao/employee-fe:build-28
diff --git a/overlays/prod/patch-deployment.yaml b/overlays/prod/patch-deployment.yaml
index 7826c8a..b8328ec 100644
--- a/overlays/prod/patch-deployment.yaml
+++ b/overlays/prod/patch-deployment.yaml
@@ -14,9 +14,7 @@ spec:
               value: "production"
             - name: LOG_LEVEL
               value: "warn"
-
 ---
-
 # FRONTEND PATCH
 apiVersion: apps/v1
 kind: Deployment
diff --git a/overlays/stag/kustomization.yaml b/overlays/stag/kustomization.yaml
deleted file mode 100644
index 3d45484..0000000
--- a/overlays/stag/kustomization.yaml
+++ /dev/null
@@ -1,19 +0,0 @@
-apiVersion: kustomize.config.k8s.io/v1beta1
-kind: Kustomization
-
-resources:
-  - ../../base
-
-namespace: intern-workspace
-namePrefix: staging-
-commonLabels:
-  environment: staging
-
-images:
-  - name: docker.io/adelyao/employee-be
-    newTag: staging-latest
-  - name: docker.io/adelyao/employee-fe
-    newTag: staging-latest
-
-patches:
-  - path: patch-deployment.yaml
diff --git a/overlays/stag/patch-deployment.yaml b/overlays/stag/patch-deployment.yaml
deleted file mode 100644
index 9ceece7..0000000
--- a/overlays/stag/patch-deployment.yaml
+++ /dev/null
@@ -1,35 +0,0 @@
-#BACKEND
-apiVersion: apps/v1
-kind: Deployment
-metadata:
-  name: backend-deployment
-spec:
-  replicas: 2
-  template:
-    spec:
-      containers:
-        - name: employee-backend
-          env:
-            - name: NODE_ENV
-              value: "staging"
-            - name: LOG_LEVEL
-              value: "info"
-
----
-
-# FRONTEND 
-apiVersion: apps/v1
-kind: Deployment
-metadata:
-  name: frontend-deployment
-spec:
-  replicas: 2
-  template:
-    spec:
-      containers:
-        - name: employee-frontend
-          env:
-            - name: VITE_API_URL
-              value: "https://staging-api.example.com"
-            - name: MODE
-              value: "staging"