enable multilib (if not already)

install/nvidia

@@ -37,6 +37,11 @@ elif pacman -Q linux-hardened &>/dev/null; then
     KERNEL_HEADERS="linux-hardened-headers"
 fi
 
+# Enable multilib repository for 32-bit libraries
+if ! grep -q "^\[multilib\]" /etc/pacman.conf; then
+    sudo sed -i '/^#\[multilib\]/,/^#Include/ s/^#//' /etc/pacman.conf
+fi
+
 # Install packages
 PACKAGES_TO_INSTALL=(
     "${KERNEL_HEADERS}"