diff --git a/.rhdh/scripts/install.sh b/.rhdh/scripts/install.sh
index 34634cf8..7dfbd84b 100755
--- a/.rhdh/scripts/install.sh
+++ b/.rhdh/scripts/install.sh
@@ -1,63 +1,67 @@
+#!/bin/bash
 # install a helm chart with the correct global.clusterRouterBase
 
 # default namespace if none set
 namespace="rhdh-helm"
-chartrepo=0 # by default don't create a new chart repo unless the version chart version includes "CI" suffix
-github=0 # by default don't use the Github repo unless the chart doesn't exist in the OCI registry
+# chartrepo=0 # by default don't create a new chart repo unless the version chart version includes "CI" suffix
 
 usage ()
 {
   echo "Usage: $0 CHART_VERSION [-n namespace]
 
 Examples:
-  $0 1.1.1 
+  $0 1.5.1 
   $0 1.7-20-CI -n rhdh-ci
 
 Options:
   -n, --namespace   Project or namespace into which to install specified chart; default: $namespace
       --github-repo If set will use the deprecated github repository to install the helm chart instead of the OCI registry.
-      --chartrepo   If set, a Helm Chart Repo will be applied to the cluster, based on the chart version.
-                    If CHART_VERSION ends in CI and --github-repo is set, this is done by default.
       --router      If set, the cluster router base is manually set. 
                     Required for non-admin users
                     Redundant for admin users
 "
-  exit
+      # --chartrepo   If set, a Helm Chart Repo will be applied to the cluster, based on the chart version.
+      #               If CHART_VERSION ends in CI, this is done by default.
 }
 
-if [[ $# -lt 1 ]]; then usage; fi
+if [[ $# -lt 1 ]]; then usage; exit 0; fi
 
 while [[ "$#" -gt 0 ]]; do
   case $1 in
-    '--chartrepo') chartrepo=1;;
+    # '--chartrepo') chartrepo=1;;
     '-n'|'--namespace') namespace="$2"; shift 1;;
-    '-h') usage;;
-    '--github-repo') github=1;;
+    '-h') usage; exit 0;;
     '--router') CLUSTER_ROUTER_BASE="$2"; shift 1;;
     *) CV="$1";;
   esac
   shift 1
 done
 
-if [[ ! "$CV" ]]; then usage; fi
+if [[ ! "$CV" ]]; then usage; exit 1; fi
 
 CHART_URL="oci://quay.io/rhdh/chart"
 
-if ! helm show chart $CHART_URL --version "$CV" &> /dev/null; then github=1; fi
-if [[ $github -eq 1 ]]; then
-  # If a Github CI chart, create a chart repo
-  if [[ "$CV" == *"-CI" ]]; then chartrepo=1; fi
-  CHART_URL="https://github.com/rhdh-bot/openshift-helm-charts/raw/redhat-developer-hub-${CV}/charts/redhat/redhat/redhat-developer-hub/${CV}/redhat-developer-hub-${CV}.tgz"
-fi
+if ! helm show chart $CHART_URL --version "$CV" &> /dev/null; then 
+  echo "Error: could not load chart $CV from $CHART_URL !"
+  echo
+  usage
+  exit 1
+  fi
 
 echo "Using ${CHART_URL} to install Helm chart"
 
 # choose namespace for the install (or create if non-existant)
 oc new-project "$namespace" || oc project "$namespace"
 
-if [[ $chartrepo -eq 1 ]]; then
-    oc apply -f https://github.com/rhdh-bot/openshift-helm-charts/raw/redhat-developer-hub-"${CV}"/installation/rhdh-next-ci-repo.yaml
-fi
+# TODO: RHIDP-6668 generate rhdh-next-ci-repo.yaml while installing so we don't have to publish a new file every time
+# TODO: RHIDP-6668 publish an index.yaml with every tarball pushed to quay.io/rhdh/chart; save them in rhdh-chart repo (one per CI versioned branch)
+# if [[ "$CV" == *"-CI" ]] || [[ $chartrepo -eq 1 ]]; then
+# see samples at 
+# https://github.com/rhdh-bot/openshift-helm-charts/blob/rhdh-1-rhel-9/installation/index.yaml#L19
+# https://github.com/rhdh-bot/openshift-helm-charts/blob/rhdh-1-rhel-9/installation/index.yaml#L49-L50
+# https://github.com/rhdh-bot/openshift-helm-charts/blob/rhdh-1-rhel-9/installation/rhdh-next-ci-repo.yaml#L8
+#     oc apply -f https://github.com/redhat-developer/rhdh-chart/raw/redhat-developer-hub-"${CV}"/installation/rhdh-next-ci-repo.yaml
+# fi
 
 # 1. install (or upgrade)
 helm upgrade redhat-developer-hub -i "${CHART_URL}" --version "$CV"