-v var doesn't work on older version of zsh.

As such I had to switch this to -n with parameter expansion

lib/helper/report

@@ -12,7 +12,7 @@ format(){
     "warn")   echo -e "$Y ⚠  $2$NC";;
     "pass")   echo -e "$G ✔  $2$NC";;
     "info")  echo -e "$MUTED כֿ  $2$NC";;
-    "debug")  [ -v debug ] && $0 info $2 ; true ;;
+    "debug")  [[ -n ${debug+x} ]] && $0 info $2 ; true ;;
     "header") echo -e  "=> $2";;
     *) echo -e "$1: $2";;
   esac