diff --git a/README.md b/README.md
index 789a608..500af59 100644
--- a/README.md
+++ b/README.md
@@ -55,3 +55,9 @@ kubectl apply -f cert-manager/issuer-production.yml
 
 This should be sufficient for cert-manager to issue certificates automatically when the
 `tls.enabled` value is set to `true`.
+
+### Manual installations
+
+The following installations are not defined in this repo.
+
+- Telepresence [link](https://www.telepresence.io/docs/latest/quick-start/)
diff --git a/deploy/base/deploy-drone.yaml b/deploy/base/deploy-drone.yaml
index 1ef5285..41f30ad 100644
--- a/deploy/base/deploy-drone.yaml
+++ b/deploy/base/deploy-drone.yaml
@@ -74,6 +74,8 @@ spec:
             configMapKeyRef:
               name: drone-config
               key: logs-debug
+        - name: DRONE_MAX_POOL_SIZE
+          value: "1"
         resources:
           requests:
             memory: "32Mi"
diff --git a/deploy/prod/clusterissuer.yaml b/deploy/prod/clusterissuer.yaml
index 6c2a570..717911a 100644
--- a/deploy/prod/clusterissuer.yaml
+++ b/deploy/prod/clusterissuer.yaml
@@ -9,9 +9,11 @@ spec:
     privateKeySecretRef:
       name: prod-letsencrypt
     solvers:
-    - http01:
-        ingress:
-          class: prod-nginx
+    # HTTP solver disabled for wildcard support.
+    # TODO: consider reenabling
+    # - http01:
+    #     ingress:
+    #       class: prod-nginx
     - dns01:
         route53:
           region: eu-west-1