diff --git a/argocd/disable-unused-controllers.yaml b/argocd/disable-unused-controllers.yaml
new file mode 100644
index 0000000..59b0bec
--- /dev/null
+++ b/argocd/disable-unused-controllers.yaml
@@ -0,0 +1,28 @@
+# Disable unused ArgoCD controllers to save resources
+# - notifications: Not using Slack/Discord alerts
+# - applicationset: Not using ApplicationSet templates
+# - dex: Using Authelia for SSO instead
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: argocd-notifications-controller
+  namespace: argocd
+spec:
+  replicas: 0
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: argocd-applicationset-controller
+  namespace: argocd
+spec:
+  replicas: 0
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: argocd-dex-server
+  namespace: argocd
+spec:
+  replicas: 0
diff --git a/argocd/kustomization.yaml b/argocd/kustomization.yaml
index dc5bb02..771244d 100644
--- a/argocd/kustomization.yaml
+++ b/argocd/kustomization.yaml
@@ -6,3 +6,4 @@ resources:
 - argocd-rbac-cm.yaml
 - argocd-cmd-params-cm.yaml
 - ingress.yaml
+- disable-unused-controllers.yaml