diff --git a/.github/workflows/lint-test.yml b/.github/workflows/lint-test.yml
index 39d49dd..90b48a8 100644
--- a/.github/workflows/lint-test.yml
+++ b/.github/workflows/lint-test.yml
@@ -39,7 +39,7 @@ jobs:
 
       - name: Run chart-testing (lint)
         if: steps.list-changed.outputs.changed == 'true'
-        run: ct lint --chart-dirs . --validate-maintainers=false  --target-branch ${{ github.event.repository.default_branch }} --check-version-increment=false
+        run: ct lint --chart-dirs . --validate-maintainers=false  --target-branch ${{ github.event.repository.default_branch }}
 
       - name: Create kind cluster
         if: steps.list-changed.outputs.changed == 'true'
@@ -47,13 +47,7 @@ jobs:
 
       - name: Setup dependencies
         if: steps.list-changed.outputs.changed == 'true'
-        run: |
-          helm upgrade --install ingress-nginx ingress-nginx \
-          --repo https://kubernetes.github.io/ingress-nginx \
-          --namespace ingress-nginx --create-namespace 
-          cd scripts
-          ./start-dependencies.sh
-          cd ..
+        run: scripts/start-dependencies.sh
             
       - name: Run chart-testing (install)
         if: steps.list-changed.outputs.changed == 'true'
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 1402c8f..5617a4b 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -5,6 +5,9 @@ on:
   branches:
      - main
 
+# Make sure only one copy of this workflow can run at a time.
+concurrency: ${{ github.workflow }}
+
 jobs:
   release:
     runs-on: ubuntu-latest
diff --git a/scripts/k8s_on_docker_desktop.sh b/scripts/k8s_on_docker_desktop.sh
index 633ee80..b1a609c 100755
--- a/scripts/k8s_on_docker_desktop.sh
+++ b/scripts/k8s_on_docker_desktop.sh
@@ -82,17 +82,6 @@ printf "\033[36m%s\033[0m:\033[0m\033[33m %s\n\033[0m" "Step 1" "Modifying depen
 sed -rie 's/(host: kafka(-0)?).*/\1'$our_kafka_domain'/g' "${root_path}dependencies/kafka.yaml"
 echo ""
 
-# Ingress is not really active/installed, lets install it
-printf "\033[36m%s\033[0m:\033[0m\033[33m %s\n\033[0m" "Step 2" "Check/Install Ingress"
-helm upgrade --install ingress-nginx ingress-nginx \
-  --repo https://kubernetes.github.io/ingress-nginx \
-  --namespace ingress-nginx --create-namespace >> $log_file 2>&1
-checkRC
-
-sleep 10
-
-echo ""
-
 # Start the dependencies
 printf "\033[36m%s\033[0m:\033[0m\033[33m %s\n\033[0m" "Step 3" "Starting Dependencies"
 ${root_path}scripts/start-dependencies.sh  >> $log_file 2>&1
diff --git a/scripts/start-dependencies.sh b/scripts/start-dependencies.sh
index aede790..3c600ac 100755
--- a/scripts/start-dependencies.sh
+++ b/scripts/start-dependencies.sh
@@ -22,6 +22,8 @@ INSTALL_MIMIR=${INSTALL_MIMIR:-false} # needed for Cortex testing
 INSTALL_LOKI=${INSTALL_LOKI:-false} # needed for log aggregation together with promtail in containers; make sure dependencies.loki.hostname='' for the helm chart if this is disabled
 
 # Required dependencies (if you don't install them here, they need to be running somewhere else)
+INSTALL_CERT_MANAGER=${INSTALL_CERT_MANAGER:-true}
+INSTALL_INGRESS_NGINX=${INSTALL_INGRESS_NGINX:-true}
 INSTALL_POSTGRESQL=${INSTALL_POSTGRESQL:-true}
 
 NAMESPACE="shared"
@@ -49,11 +51,21 @@ helm repo add grafana https://grafana.github.io/helm-charts
 helm repo update
 
 # Install Cert-Manager
-helm upgrade --install cert-manager jetstack/cert-manager --version v1.10.1 \
-  --namespace cert-manager --create-namespace --set installCRDs=true --wait
-kubectl apply -f ca -n cert-manager
+if [ "$INSTALL_CERT_MANAGER" == "true" ]; then
+  helm upgrade --install cert-manager jetstack/cert-manager --version v1.10.1 \
+    --namespace cert-manager --create-namespace --set installCRDs=true --wait
+  kubectl apply -f ca -n cert-manager
+fi
+
+# Install ingress-nginx
+if [ "$INSTALL_INGRESS_NGINX" == "true" ]; then
+  helm upgrade --install ingress-nginx ingress-nginx \
+    --repo https://kubernetes.github.io/ingress-nginx \
+    --version 4.8.3 \
+    --namespace ingress-nginx --create-namespace
+fi
 
-# Create a namespace for most of the dependencies except for cert-manager (above), and the postgres and elastic operators (added below).
+# Create a namespace for most of the dependencies except for cert-manager and ingress-nginx (above), and the postgres and elastic operators (added below).
 kubectl create namespace $NAMESPACE --dry-run=client -o yaml | kubectl apply -f -
 
 # Install Grafana Loki