diff --git a/main.sh b/main.sh
index 177111f..339cc3c 100755
--- a/main.sh
+++ b/main.sh
@@ -1,17 +1,23 @@
 #!/usr/bin/env sh
-# takes two optional arguments
-# -t path to pango formated text file
-#    https://usage.imagemagick.org/text/#pango
-#    this can be overwritten with the text inside a env var named
-#    IMAGE_TEXT
-#
-# -p is a path to write the jpg to
-#    alternativly you can write the path into PICTURE_PATH
-set -E -o pipefail
-set -x
-export LC_ALL='C.UTF8'
+set -ex
 
-export SCRIPT_DIR="$(CDPATH= cd -- "$(dirname -- "$0")" && pwd)"
+help_text() {
+  printf "
+-t path to pango formated text file
+   how to format: https://usage.imagemagick.org/text/#pango
+   as an environment variable IMAGE_TEXT not with path but the text itself
+   if -t is set the environment variable will be ignored
+
+-p is a path to write the jpg to
+   as an environment variable PICTURE_PATH
+   if -p is set the environment variable will be ignored
+  "
+  exit 1
+}
+
+export LC_ALL='C.UTF8'
+SCRIPT_DIR="$(cd -P -- "$(dirname -- "$(command -v -- "$0")")" && pwd -P)"
+export SCRIPT_DIR
 
 P_PATH="$SCRIPT_DIR/label.jpg"
 I_TEXT="$(cat "$SCRIPT_DIR"/text.pango 2>/dev/null || echo 'example text')"
@@ -21,10 +27,11 @@ I_TEXT="${IMAGE_TEXT:-$I_TEXT}"
 
 while getopts "p:t:" opt
 do
-   case "$opt" in
-       p) P_PATH="$OPTARG";;
-       t) I_TEXT="$OPTARG";;
-   esac
+  case "$opt" in
+    p) P_PATH="$OPTARG";;
+    t) I_TEXT=$(cat "$OPTARG");;
+    *) help_text
+  esac
 done
 
 magick \
@@ -33,3 +40,4 @@ magick \
   -font 'FiraCode Nerd Font' \
   -pointsize 72 pango:"$I_TEXT" \
   "$P_PATH"
+