Fix kernel update detection again

update-notify

@@ -8,9 +8,14 @@ fi
 
 arch_updates=$(checkupdates | wc -l)
 aur_updates=$(aur repo -u -d aur-local | wc -l)
+kernel_update=$(checkupdates | grep linux | grep -v custom | grep -v archlinux | grep -v api | grep -v firmware | wc -l)
 
 updates=$(($arch_updates + $aur_updates))
 
+if [ "$kernel_update" -ge 1 ]; then
+    notify-send "Kernel update available" "Rebuild custom kernel to update"
+fi
+
 if [ "$updates" -ge "$threshold" ]; then
     notify-send "Updates available" "Arch: $arch_updates, AUR: $aur_updates"
 fi