# helm repo add <repo-name> <repo-url>
helm repo add prometheus-community https://prometheus-community.github.io/helm-charts
helm repo update
# helm pull <repo-name>/<chart-name> --version <chart-version> --destination <local-directory>
mkdir ./charts
helm pull prometheus-community/kube-prometheus-stack --destination ./charts
# tar -xvzf ./charts/kube-prometheus-stack-68.3.0.tgz -C ./charts