diff --git a/README.md b/README.md
index bbb6e77..7d46450 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,7 @@
 # K8s Cluster Platform — Services
 
-Bootstraps platform/application services (vault, external-secrets, harbor, jenkins,
-sonarqube, etc.) onto the cluster using ArgoCD app-of-apps pattern.
+Bootstraps platform/application services (vault, kube-prometheus-stack, harbor,
+jenkins, sonarqube, headlamp) onto the cluster using ArgoCD app-of-apps pattern.
 
 Run this after `cluster-bootstrap` finishes (ArgoCD, MetalLB, Envoy Gateway, NFS
 storage must already be up).
@@ -14,9 +14,34 @@ Git repo (cluster-platform)
 
 platform-app.yaml       ← root Application, applied once by hand (kubectl apply)
 platform/apps/          ← ArgoCD watches this path; one Application CRD per service
-manifests/               ← Helm values referenced by those Applications
+manifests/               ← Helm values + raw manifests referenced by those Applications
 ```
 
+Sync waves (no hard interdependencies between services yet — grouped for
+readability / staggered rollout):
+
+| Wave | Service | Purpose |
+|------|---------|---------|
+| 0 | vault | Secrets engine (standalone, manual init/unseal) |
+| 0 | headlamp | K8s dashboard |
+| 1 | headlamp-config | ClusterRoleBinding for login token |
+| 1 | external-secrets | Vault → K8s Secret operator |
+| 1 | kube-prometheus-stack | Prometheus + Grafana + Alertmanager |
+| 1 | harbor | Image registry |
+| 2 | external-secrets-config | ClusterSecretStore wired to Vault (k8s auth) |
+| 2 | kube-prometheus-stack-config | Grafana HTTPRoute |
+| 2 | harbor-config | Harbor HTTPRoute |
+| 2 | jenkins | CI |
+| 2 | sonarqube | Code quality (embedded H2, no external Postgres) |
+| 3 | jenkins-config | Jenkins HTTPRoute |
+| 3 | sonarqube-config | SonarQube HTTPRoute |
+
+⚠️ Chart `targetRevision` pins in `platform/apps/*.yaml` are best-effort and
+marked `TODO: verify latest` — this session had no live access to the Helm
+repos to confirm current versions. Run `helm repo add <name> <url> && helm
+search repo <name>/<chart> --versions` before or after first sync and bump
+if a pin doesn't resolve.
+
 ## Bootstrap Sequence
 
 **Apply the root platform Application**
@@ -26,3 +51,94 @@ kubectl apply -f platform-app.yaml
 ```
 
 Everything else is reached by ArgoCD syncing `platform/apps/` from here.
+
+### Post-sync manual steps
+
+**Vault — initialize + unseal** (standalone mode, not auto-unseal):
+
+```bash
+kubectl exec -n vault vault-0 -- vault operator init -key-shares=1 -key-threshold=1
+# save the unseal key + root token shown, then:
+kubectl exec -n vault vault-0 -- vault operator unseal <unseal-key>
+```
+
+**Wire Vault up for external-secrets** (kv-v2 mount + kubernetes auth method —
+this is Vault-internal config, not a k8s resource, so it can't go through
+ArgoCD; do it once after unseal):
+
+```bash
+kubectl exec -it -n vault vault-0 -- sh
+export VAULT_TOKEN=<root-token-from-init>
+
+vault secrets enable -path=kv kv-v2
+vault auth enable kubernetes
+vault write auth/kubernetes/config \
+  kubernetes_host="https://kubernetes.default.svc"
+
+vault policy write external-secrets - <<EOF
+path "kv/data/*" {
+  capabilities = ["read"]
+}
+EOF
+
+vault write auth/kubernetes/role/external-secrets \
+  bound_service_account_names=external-secrets-vault-auth \
+  bound_service_account_namespaces=external-secrets \
+  policies=external-secrets \
+  ttl=1h
+```
+
+Once this is done, `external-secrets-config`'s `ClusterSecretStore` (`vault-backend`)
+should show `Valid` — check with `kubectl get clustersecretstore vault-backend -o yaml`.
+
+Per-service `ExternalSecret` resources (harbor-credentials, gitea-credentials,
+sonarqube-token, Jenkins creds) aren't created yet — that's a follow-up once
+you've actually put those secrets into Vault under `kv/`.
+
+**Grafana admin password** (chart auto-generates, never in Git):
+
+```bash
+kubectl get secret -n monitoring kube-prometheus-stack-grafana -o jsonpath='{.data.admin-password}' | base64 -d; echo
+```
+
+**Jenkins admin password** (chart auto-generates, never in Git):
+
+```bash
+kubectl exec -n jenkins deploy/jenkins -c jenkins -- cat /run/secrets/additional/chart-admin-password; echo
+```
+
+**Harbor admin password** — chart ships a default (`Harbor12345`). Log in to
+`http://harbor.fireflylab.local` and rotate it immediately; Harbor's password
+is set inside its own database on first boot, so it cannot be swapped via a
+`kubectl patch` the way ArgoCD's can.
+
+**Headlamp login token** (ServiceAccount created by `headlamp-config`):
+
+```bash
+kubectl create token headlamp-admin -n headlamp
+```
+Paste the token into the Headlamp UI login screen.
+
+### Apply HTTPRoutes note
+
+Each `*-config` Application creates its own HTTPRoute (unlike
+`cluster-bootstrap`'s ArgoCD route, which had to be applied by hand to avoid
+a chicken-and-egg problem before Envoy existed) — Envoy Gateway is already up
+by the time this repo syncs, so these are fully GitOps/auto-synced.
+
+Backend service names in each `httproute.yaml` are best-effort based on each
+chart's naming convention and marked with a `verify with: kubectl get svc`
+comment — confirm and adjust if a route doesn't resolve.
+
+## Domains (add to local DNS, all → 192.168.1.30)
+
+| Service | Hostname |
+|---------|----------|
+| Grafana | grafana.fireflylab.local |
+| Harbor | harbor.fireflylab.local |
+| Jenkins | jenkins.fireflylab.local |
+| SonarQube | sonarqube.fireflylab.local |
+
+Vault and Headlamp have no HTTPRoute — Vault stays internal-only
+(`vault.vault.svc.cluster.local:8200`); Headlamp is accessed via
+`kubectl port-forward` until/unless you add a route for it.
diff --git a/manifests/external-secrets-config/clustersecretstore.yaml b/manifests/external-secrets-config/clustersecretstore.yaml
new file mode 100644
index 0000000..ca66c8c
--- /dev/null
+++ b/manifests/external-secrets-config/clustersecretstore.yaml
@@ -0,0 +1,17 @@
+apiVersion: external-secrets.io/v1beta1
+kind: ClusterSecretStore
+metadata:
+  name: vault-backend
+spec:
+  provider:
+    vault:
+      server: "http://vault.vault.svc.cluster.local:8200"
+      path: kv
+      version: v2
+      auth:
+        kubernetes:
+          mountPath: kubernetes
+          role: external-secrets
+          serviceAccountRef:
+            name: external-secrets-vault-auth
+            namespace: external-secrets
diff --git a/manifests/external-secrets-config/serviceaccount.yaml b/manifests/external-secrets-config/serviceaccount.yaml
new file mode 100644
index 0000000..ed40ba0
--- /dev/null
+++ b/manifests/external-secrets-config/serviceaccount.yaml
@@ -0,0 +1,5 @@
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: external-secrets-vault-auth
+  namespace: external-secrets
diff --git a/manifests/external-secrets/values.yaml b/manifests/external-secrets/values.yaml
new file mode 100644
index 0000000..1b4551c
--- /dev/null
+++ b/manifests/external-secrets/values.yaml
@@ -0,0 +1 @@
+installCRDs: true
diff --git a/manifests/harbor-config/httproute.yaml b/manifests/harbor-config/httproute.yaml
new file mode 100644
index 0000000..01ccfc7
--- /dev/null
+++ b/manifests/harbor-config/httproute.yaml
@@ -0,0 +1,20 @@
+apiVersion: gateway.networking.k8s.io/v1
+kind: HTTPRoute
+metadata:
+  name: harbor
+  namespace: harbor
+spec:
+  parentRefs:
+    - name: envoy-gateway
+      namespace: envoy-gateway-system
+  hostnames:
+    - "harbor.fireflylab.local"
+  rules:
+    - matches:
+        - path:
+            type: PathPrefix
+            value: /
+      backendRefs:
+        # verify with: kubectl get svc -n harbor  (nginx frontend, combines portal+core+registry)
+        - name: harbor-nginx
+          port: 80
diff --git a/manifests/harbor/values.yaml b/manifests/harbor/values.yaml
new file mode 100644
index 0000000..8fb5c98
--- /dev/null
+++ b/manifests/harbor/values.yaml
@@ -0,0 +1,30 @@
+expose:
+  type: clusterIP
+  tls:
+    enabled: false
+
+externalURL: http://harbor.fireflylab.local
+
+persistence:
+  imageChartStorage:
+    disableRedirect: true
+    type: filesystem
+    filesystem:
+      rootdirectory: /storage
+  persistentVolumeClaim:
+    registry:
+      storageClass: nfs-delete
+      size: 50Gi
+    jobservice:
+      jobLog:
+        storageClass: nfs-delete
+        size: 5Gi
+    database:
+      storageClass: nfs-delete
+      size: 5Gi
+    redis:
+      storageClass: nfs-delete
+      size: 2Gi
+    trivy:
+      storageClass: nfs-delete
+      size: 5Gi
diff --git a/manifests/headlamp-config/rbac.yaml b/manifests/headlamp-config/rbac.yaml
new file mode 100644
index 0000000..79634ea
--- /dev/null
+++ b/manifests/headlamp-config/rbac.yaml
@@ -0,0 +1,18 @@
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: headlamp-admin
+  namespace: headlamp
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRoleBinding
+metadata:
+  name: headlamp-admin
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: ClusterRole
+  name: cluster-admin
+subjects:
+  - kind: ServiceAccount
+    name: headlamp-admin
+    namespace: headlamp
diff --git a/manifests/headlamp/values.yaml b/manifests/headlamp/values.yaml
new file mode 100644
index 0000000..b738e2a
--- /dev/null
+++ b/manifests/headlamp/values.yaml
@@ -0,0 +1,2 @@
+service:
+  type: ClusterIP
diff --git a/manifests/jenkins-config/httproute.yaml b/manifests/jenkins-config/httproute.yaml
new file mode 100644
index 0000000..ac9d25c
--- /dev/null
+++ b/manifests/jenkins-config/httproute.yaml
@@ -0,0 +1,20 @@
+apiVersion: gateway.networking.k8s.io/v1
+kind: HTTPRoute
+metadata:
+  name: jenkins
+  namespace: jenkins
+spec:
+  parentRefs:
+    - name: envoy-gateway
+      namespace: envoy-gateway-system
+  hostnames:
+    - "jenkins.fireflylab.local"
+  rules:
+    - matches:
+        - path:
+            type: PathPrefix
+            value: /
+      backendRefs:
+        # verify with: kubectl get svc -n jenkins
+        - name: jenkins
+          port: 8080
diff --git a/manifests/jenkins/values.yaml b/manifests/jenkins/values.yaml
new file mode 100644
index 0000000..407f85f
--- /dev/null
+++ b/manifests/jenkins/values.yaml
@@ -0,0 +1,14 @@
+controller:
+  serviceType: ClusterIP
+  persistence:
+    storageClass: nfs-delete
+    size: 20Gi
+  resources:
+    requests:
+      cpu: 250m
+      memory: 1Gi
+    limits:
+      memory: 2Gi
+
+agent:
+  enabled: true
diff --git a/manifests/kube-prometheus-stack-config/httproute.yaml b/manifests/kube-prometheus-stack-config/httproute.yaml
new file mode 100644
index 0000000..c3dfd5c
--- /dev/null
+++ b/manifests/kube-prometheus-stack-config/httproute.yaml
@@ -0,0 +1,20 @@
+apiVersion: gateway.networking.k8s.io/v1
+kind: HTTPRoute
+metadata:
+  name: grafana
+  namespace: monitoring
+spec:
+  parentRefs:
+    - name: envoy-gateway
+      namespace: envoy-gateway-system
+  hostnames:
+    - "grafana.fireflylab.local"
+  rules:
+    - matches:
+        - path:
+            type: PathPrefix
+            value: /
+      backendRefs:
+        # verify with: kubectl get svc -n monitoring
+        - name: kube-prometheus-stack-grafana
+          port: 80
diff --git a/manifests/kube-prometheus-stack/values.yaml b/manifests/kube-prometheus-stack/values.yaml
new file mode 100644
index 0000000..58d0c26
--- /dev/null
+++ b/manifests/kube-prometheus-stack/values.yaml
@@ -0,0 +1,26 @@
+grafana:
+  persistence:
+    enabled: true
+    storageClassName: nfs-delete
+    size: 5Gi
+
+prometheus:
+  prometheusSpec:
+    storageSpec:
+      volumeClaimTemplate:
+        spec:
+          storageClassName: nfs-delete
+          resources:
+            requests:
+              storage: 20Gi
+    retention: 15d
+
+alertmanager:
+  alertmanagerSpec:
+    storage:
+      volumeClaimTemplate:
+        spec:
+          storageClassName: nfs-delete
+          resources:
+            requests:
+              storage: 2Gi
diff --git a/manifests/sonarqube-config/httproute.yaml b/manifests/sonarqube-config/httproute.yaml
new file mode 100644
index 0000000..4300b87
--- /dev/null
+++ b/manifests/sonarqube-config/httproute.yaml
@@ -0,0 +1,20 @@
+apiVersion: gateway.networking.k8s.io/v1
+kind: HTTPRoute
+metadata:
+  name: sonarqube
+  namespace: sonarqube
+spec:
+  parentRefs:
+    - name: envoy-gateway
+      namespace: envoy-gateway-system
+  hostnames:
+    - "sonarqube.fireflylab.local"
+  rules:
+    - matches:
+        - path:
+            type: PathPrefix
+            value: /
+      backendRefs:
+        # verify with: kubectl get svc -n sonarqube
+        - name: sonarqube-sonarqube
+          port: 9000
diff --git a/manifests/sonarqube/values.yaml b/manifests/sonarqube/values.yaml
new file mode 100644
index 0000000..690956f
--- /dev/null
+++ b/manifests/sonarqube/values.yaml
@@ -0,0 +1,17 @@
+postgresql:
+  enabled: false
+
+persistence:
+  enabled: true
+  storageClass: nfs-delete
+  size: 20Gi
+
+service:
+  type: ClusterIP
+
+resources:
+  requests:
+    cpu: 500m
+    memory: 2Gi
+  limits:
+    memory: 4Gi
diff --git a/manifests/vault/values.yaml b/manifests/vault/values.yaml
new file mode 100644
index 0000000..4640f3f
--- /dev/null
+++ b/manifests/vault/values.yaml
@@ -0,0 +1,15 @@
+server:
+  dataStorage:
+    enabled: true
+    storageClass: nfs-delete
+    size: 10Gi
+  standalone:
+    enabled: true
+  ha:
+    enabled: false
+
+ui:
+  enabled: true
+
+injector:
+  enabled: true
diff --git a/platform/apps/external-secrets-config.yaml b/platform/apps/external-secrets-config.yaml
new file mode 100644
index 0000000..0179b80
--- /dev/null
+++ b/platform/apps/external-secrets-config.yaml
@@ -0,0 +1,22 @@
+apiVersion: argoproj.io/v1alpha1
+kind: Application
+metadata:
+  name: external-secrets-config
+  namespace: argocd
+  annotations:
+    argocd.argoproj.io/sync-wave: "2"
+spec:
+  project: default
+  source:
+    repoURL: https://gitea.fireflylab.cc/duynguyen/cluster-platform.git
+    targetRevision: main
+    path: manifests/external-secrets-config
+  destination:
+    server: https://kubernetes.default.svc
+    namespace: external-secrets
+  syncPolicy:
+    automated:
+      prune: true
+      selfHeal: true
+    syncOptions:
+      - SkipDryRunOnMissingResource=true
diff --git a/platform/apps/external-secrets.yaml b/platform/apps/external-secrets.yaml
new file mode 100644
index 0000000..f434b13
--- /dev/null
+++ b/platform/apps/external-secrets.yaml
@@ -0,0 +1,29 @@
+apiVersion: argoproj.io/v1alpha1
+kind: Application
+metadata:
+  name: external-secrets
+  namespace: argocd
+  annotations:
+    argocd.argoproj.io/sync-wave: "1"
+spec:
+  project: default
+  sources:
+    - repoURL: https://charts.external-secrets.io
+      chart: external-secrets
+      targetRevision: "0.10.0"  # TODO: verify latest via `helm search repo external-secrets/external-secrets --versions`
+      helm:
+        valueFiles:
+          - $values/manifests/external-secrets/values.yaml
+    - repoURL: https://gitea.fireflylab.cc/duynguyen/cluster-platform.git
+      targetRevision: main
+      ref: values
+  destination:
+    server: https://kubernetes.default.svc
+    namespace: external-secrets
+  syncPolicy:
+    automated:
+      prune: true
+      selfHeal: true
+    syncOptions:
+      - CreateNamespace=true
+      - ServerSideApply=true
diff --git a/platform/apps/harbor-config.yaml b/platform/apps/harbor-config.yaml
new file mode 100644
index 0000000..9a91427
--- /dev/null
+++ b/platform/apps/harbor-config.yaml
@@ -0,0 +1,22 @@
+apiVersion: argoproj.io/v1alpha1
+kind: Application
+metadata:
+  name: harbor-config
+  namespace: argocd
+  annotations:
+    argocd.argoproj.io/sync-wave: "2"
+spec:
+  project: default
+  source:
+    repoURL: https://gitea.fireflylab.cc/duynguyen/cluster-platform.git
+    targetRevision: main
+    path: manifests/harbor-config
+  destination:
+    server: https://kubernetes.default.svc
+    namespace: harbor
+  syncPolicy:
+    automated:
+      prune: true
+      selfHeal: true
+    syncOptions:
+      - SkipDryRunOnMissingResource=true
diff --git a/platform/apps/harbor.yaml b/platform/apps/harbor.yaml
new file mode 100644
index 0000000..59441b3
--- /dev/null
+++ b/platform/apps/harbor.yaml
@@ -0,0 +1,28 @@
+apiVersion: argoproj.io/v1alpha1
+kind: Application
+metadata:
+  name: harbor
+  namespace: argocd
+  annotations:
+    argocd.argoproj.io/sync-wave: "1"
+spec:
+  project: default
+  sources:
+    - repoURL: https://helm.goharbor.io
+      chart: harbor
+      targetRevision: "1.16.0"  # TODO: verify latest via `helm search repo harbor/harbor --versions`
+      helm:
+        valueFiles:
+          - $values/manifests/harbor/values.yaml
+    - repoURL: https://gitea.fireflylab.cc/duynguyen/cluster-platform.git
+      targetRevision: main
+      ref: values
+  destination:
+    server: https://kubernetes.default.svc
+    namespace: harbor
+  syncPolicy:
+    automated:
+      prune: true
+      selfHeal: true
+    syncOptions:
+      - CreateNamespace=true
diff --git a/platform/apps/headlamp-config.yaml b/platform/apps/headlamp-config.yaml
new file mode 100644
index 0000000..2e1f32f
--- /dev/null
+++ b/platform/apps/headlamp-config.yaml
@@ -0,0 +1,22 @@
+apiVersion: argoproj.io/v1alpha1
+kind: Application
+metadata:
+  name: headlamp-config
+  namespace: argocd
+  annotations:
+    argocd.argoproj.io/sync-wave: "1"
+spec:
+  project: default
+  source:
+    repoURL: https://gitea.fireflylab.cc/duynguyen/cluster-platform.git
+    targetRevision: main
+    path: manifests/headlamp-config
+  destination:
+    server: https://kubernetes.default.svc
+    namespace: headlamp
+  syncPolicy:
+    automated:
+      prune: true
+      selfHeal: true
+    syncOptions:
+      - SkipDryRunOnMissingResource=true
diff --git a/platform/apps/headlamp.yaml b/platform/apps/headlamp.yaml
new file mode 100644
index 0000000..1224412
--- /dev/null
+++ b/platform/apps/headlamp.yaml
@@ -0,0 +1,28 @@
+apiVersion: argoproj.io/v1alpha1
+kind: Application
+metadata:
+  name: headlamp
+  namespace: argocd
+  annotations:
+    argocd.argoproj.io/sync-wave: "0"
+spec:
+  project: default
+  sources:
+    - repoURL: https://kubernetes-sigs.github.io/headlamp/
+      chart: headlamp
+      targetRevision: "0.31.0"  # TODO: verify latest via `helm search repo headlamp/headlamp --versions`
+      helm:
+        valueFiles:
+          - $values/manifests/headlamp/values.yaml
+    - repoURL: https://gitea.fireflylab.cc/duynguyen/cluster-platform.git
+      targetRevision: main
+      ref: values
+  destination:
+    server: https://kubernetes.default.svc
+    namespace: headlamp
+  syncPolicy:
+    automated:
+      prune: true
+      selfHeal: true
+    syncOptions:
+      - CreateNamespace=true
diff --git a/platform/apps/jenkins-config.yaml b/platform/apps/jenkins-config.yaml
new file mode 100644
index 0000000..c88856f
--- /dev/null
+++ b/platform/apps/jenkins-config.yaml
@@ -0,0 +1,22 @@
+apiVersion: argoproj.io/v1alpha1
+kind: Application
+metadata:
+  name: jenkins-config
+  namespace: argocd
+  annotations:
+    argocd.argoproj.io/sync-wave: "3"
+spec:
+  project: default
+  source:
+    repoURL: https://gitea.fireflylab.cc/duynguyen/cluster-platform.git
+    targetRevision: main
+    path: manifests/jenkins-config
+  destination:
+    server: https://kubernetes.default.svc
+    namespace: jenkins
+  syncPolicy:
+    automated:
+      prune: true
+      selfHeal: true
+    syncOptions:
+      - SkipDryRunOnMissingResource=true
diff --git a/platform/apps/jenkins.yaml b/platform/apps/jenkins.yaml
new file mode 100644
index 0000000..7be1f3b
--- /dev/null
+++ b/platform/apps/jenkins.yaml
@@ -0,0 +1,28 @@
+apiVersion: argoproj.io/v1alpha1
+kind: Application
+metadata:
+  name: jenkins
+  namespace: argocd
+  annotations:
+    argocd.argoproj.io/sync-wave: "2"
+spec:
+  project: default
+  sources:
+    - repoURL: https://charts.jenkins.io
+      chart: jenkins
+      targetRevision: "5.8.0"  # TODO: verify latest via `helm search repo jenkins/jenkins --versions`
+      helm:
+        valueFiles:
+          - $values/manifests/jenkins/values.yaml
+    - repoURL: https://gitea.fireflylab.cc/duynguyen/cluster-platform.git
+      targetRevision: main
+      ref: values
+  destination:
+    server: https://kubernetes.default.svc
+    namespace: jenkins
+  syncPolicy:
+    automated:
+      prune: true
+      selfHeal: true
+    syncOptions:
+      - CreateNamespace=true
diff --git a/platform/apps/kube-prometheus-stack-config.yaml b/platform/apps/kube-prometheus-stack-config.yaml
new file mode 100644
index 0000000..c11099e
--- /dev/null
+++ b/platform/apps/kube-prometheus-stack-config.yaml
@@ -0,0 +1,22 @@
+apiVersion: argoproj.io/v1alpha1
+kind: Application
+metadata:
+  name: kube-prometheus-stack-config
+  namespace: argocd
+  annotations:
+    argocd.argoproj.io/sync-wave: "2"
+spec:
+  project: default
+  source:
+    repoURL: https://gitea.fireflylab.cc/duynguyen/cluster-platform.git
+    targetRevision: main
+    path: manifests/kube-prometheus-stack-config
+  destination:
+    server: https://kubernetes.default.svc
+    namespace: monitoring
+  syncPolicy:
+    automated:
+      prune: true
+      selfHeal: true
+    syncOptions:
+      - SkipDryRunOnMissingResource=true
diff --git a/platform/apps/kube-prometheus-stack.yaml b/platform/apps/kube-prometheus-stack.yaml
new file mode 100644
index 0000000..f0c57bd
--- /dev/null
+++ b/platform/apps/kube-prometheus-stack.yaml
@@ -0,0 +1,29 @@
+apiVersion: argoproj.io/v1alpha1
+kind: Application
+metadata:
+  name: kube-prometheus-stack
+  namespace: argocd
+  annotations:
+    argocd.argoproj.io/sync-wave: "1"
+spec:
+  project: default
+  sources:
+    - repoURL: https://prometheus-community.github.io/helm-charts
+      chart: kube-prometheus-stack
+      targetRevision: "65.0.0"  # TODO: verify latest via `helm search repo prometheus-community/kube-prometheus-stack --versions`
+      helm:
+        valueFiles:
+          - $values/manifests/kube-prometheus-stack/values.yaml
+    - repoURL: https://gitea.fireflylab.cc/duynguyen/cluster-platform.git
+      targetRevision: main
+      ref: values
+  destination:
+    server: https://kubernetes.default.svc
+    namespace: monitoring
+  syncPolicy:
+    automated:
+      prune: true
+      selfHeal: true
+    syncOptions:
+      - CreateNamespace=true
+      - ServerSideApply=true
diff --git a/platform/apps/sonarqube-config.yaml b/platform/apps/sonarqube-config.yaml
new file mode 100644
index 0000000..e8264db
--- /dev/null
+++ b/platform/apps/sonarqube-config.yaml
@@ -0,0 +1,22 @@
+apiVersion: argoproj.io/v1alpha1
+kind: Application
+metadata:
+  name: sonarqube-config
+  namespace: argocd
+  annotations:
+    argocd.argoproj.io/sync-wave: "3"
+spec:
+  project: default
+  source:
+    repoURL: https://gitea.fireflylab.cc/duynguyen/cluster-platform.git
+    targetRevision: main
+    path: manifests/sonarqube-config
+  destination:
+    server: https://kubernetes.default.svc
+    namespace: sonarqube
+  syncPolicy:
+    automated:
+      prune: true
+      selfHeal: true
+    syncOptions:
+      - SkipDryRunOnMissingResource=true
diff --git a/platform/apps/sonarqube.yaml b/platform/apps/sonarqube.yaml
new file mode 100644
index 0000000..1204cde
--- /dev/null
+++ b/platform/apps/sonarqube.yaml
@@ -0,0 +1,28 @@
+apiVersion: argoproj.io/v1alpha1
+kind: Application
+metadata:
+  name: sonarqube
+  namespace: argocd
+  annotations:
+    argocd.argoproj.io/sync-wave: "2"
+spec:
+  project: default
+  sources:
+    - repoURL: https://SonarSource.github.io/helm-chart-sonarqube
+      chart: sonarqube
+      targetRevision: "10.6.0"  # TODO: verify latest via `helm search repo sonarqube/sonarqube --versions`
+      helm:
+        valueFiles:
+          - $values/manifests/sonarqube/values.yaml
+    - repoURL: https://gitea.fireflylab.cc/duynguyen/cluster-platform.git
+      targetRevision: main
+      ref: values
+  destination:
+    server: https://kubernetes.default.svc
+    namespace: sonarqube
+  syncPolicy:
+    automated:
+      prune: true
+      selfHeal: true
+    syncOptions:
+      - CreateNamespace=true
diff --git a/platform/apps/vault.yaml b/platform/apps/vault.yaml
new file mode 100644
index 0000000..b7539aa
--- /dev/null
+++ b/platform/apps/vault.yaml
@@ -0,0 +1,28 @@
+apiVersion: argoproj.io/v1alpha1
+kind: Application
+metadata:
+  name: vault
+  namespace: argocd
+  annotations:
+    argocd.argoproj.io/sync-wave: "0"
+spec:
+  project: default
+  sources:
+    - repoURL: https://helm.releases.hashicorp.com
+      chart: vault
+      targetRevision: "0.30.0"  # TODO: verify latest via `helm search repo hashicorp/vault --versions`
+      helm:
+        valueFiles:
+          - $values/manifests/vault/values.yaml
+    - repoURL: https://gitea.fireflylab.cc/duynguyen/cluster-platform.git
+      targetRevision: main
+      ref: values
+  destination:
+    server: https://kubernetes.default.svc
+    namespace: vault
+  syncPolicy:
+    automated:
+      prune: true
+      selfHeal: true
+    syncOptions:
+      - CreateNamespace=true