diff --git a/setup/postinstall.sh b/setup/postinstall.sh
index 5bff726..82b3544 100755
--- a/setup/postinstall.sh
+++ b/setup/postinstall.sh
@@ -53,16 +53,18 @@ command_exists() {
 }
 
 # ─────────────────────────────────────< get packager >─────────────────────────────────────
-# checkPkg() {
-for pkg in apt-get dnf pacman apk zypper; do
-  if command_exists $pkg; then
-    printf "Using ${RED}${pkg}${NC} method.."
-    export pkger="$pkg"
+checkPkg() {
+  pkger=""
+  for pkg in apt-get dnf pacman apk zypper; do
+    if command_exists $pkg; then
+      printf "Using ${RED}${pkg}${NC} method.."
+      pkger="$pkg"
 
-    break
-  fi
-done
-# }
+      # break
+      return 0
+    fi
+  done
+}
 
 # ─────────────────────────────────< check for root/sudo >───────────────────────────────
 # checkRoot() {
@@ -228,12 +230,14 @@ zypperBase() {
 #                                      ╰───────────╯
 
 # envCheck() {
-# checkRoot
-# checkPkg
+#   checkRoot
+#   checkPkg
 # }
 
 install_base() {
-  # envCheck
+  if ! checkPkg; then
+    return 1
+  fi
 
   echo_info "Installing base packages..."
   case "$pkger" in
@@ -258,7 +262,9 @@ install_base() {
 }
 
 optimize_os() {
-  # envCheck
+  if ! checkPkg; then
+    return 1
+  fi
 
   echo_info "Running OS optimizations..."
   case "$pkg" in