diff --git a/setup.sh b/setup.sh
index 230eccb..89291ea 100755
--- a/setup.sh
+++ b/setup.sh
@@ -3,41 +3,75 @@
 # Author : NTT Data AG
 # Date   : 11-05-2023
 
-show_help() {
-    echo "Usage: $0 [-m <boolean>] [-a <app_name>]"
-    echo "Options:"
-    echo "  -m <boolean>        Install helm"
-    echo "  -a <app_name>       Specify the app name"
-}
-
 helm_install=false
 app_name=""
 
-while getopts "hm:a:" option; do
-    case $option in
-        h)
+# fetch helm resources
+# docs: https://helm.sh/docs/intro/install/
+install_helm () {
+	curl -fsSL -o get_helm.sh https://raw.githubusercontent.com/helm/helm/main/scripts/get-helm-3
+	chmod 700 get_helm.sh
+	./get_helm.sh
+}
+
+show_help() {
+    cat <<EOF
+Usage: $0 [options]
+
+Options:
+  -h, --help           Show help information
+  -m, --helm           Install Helm
+  -a, --app <app_name> Specify the app name
+EOF
+}
+
+while [ "$#" -gt 0 ]; do
+    case "$1" in
+        -h|--help)
             show_help
             exit 0
             ;;
-        m) 
-            helm_install="$OPTARG"
+        -m|--helm)
+            helm_install=true
+            shift
             ;;
-        a)
-            app_name="$OPTARG"
+        -a|--app)
+            if [ "$2" ]; then
+                app_name="$2"
+                shift 2
+            else
+                echo "Error: Missing argument for $1 option"
+                show_help
+                exit 1
+            fi
             ;;
         *)
+            echo "Error: Unrecognized option $1"
             show_help
             exit 1
             ;;
     esac
 done
 
-if [ "$helm_install" = "true" ]; then
+# Check if --helm was set
+if [ "$helm_install" = true ]; then
     echo "Installing helm"
+    # install_helm
+else
+    echo "Skipping helm"
 fi
 
+# Validate app names
 if [ -z "$app_name" ]; then
     echo "Please specify app"
 else
-    echo "Installing $app_name"
+    case $app_name in
+        "socks_shop")
+            echo "installing sock shop"
+            ;;
+        *)
+            echo "Only following apps allowed"
+            exit 1
+            ;;
+    esac
 fi
\ No newline at end of file