diff --git a/utils/crop_image_to_bbox.py b/utils/crop_image_to_bbox.py
old mode 100644
new mode 100755
index 0b1e0d5..02c9076
--- a/utils/crop_image_to_bbox.py
+++ b/utils/crop_image_to_bbox.py
@@ -1,3 +1,6 @@
+#!/usr/bin/env python3
+# -*- coding: utf8 -*-
+
 from PIL import Image
 import sys
 
diff --git a/utils/favicon-from-svg.sh b/utils/favicon-from-svg.sh
index 8ff8fc8..3d3ae98 100755
--- a/utils/favicon-from-svg.sh
+++ b/utils/favicon-from-svg.sh
@@ -1,4 +1,5 @@
-#!/bin/bash
+#!/usr/bin/env bash
+# -*- coding: utf8 -*-
 
 # Source: https://gessel.blackrosetech.com/2020/12/21/favicon-generation-script
 
@@ -28,8 +29,7 @@ inkscape -o "$out/favicon-310x150.png" -w 310 -h 150 $svg
 echo Compressing...
 for f in $out/*.png; do pngquant -f --ext .png "$f" --posterize 4 --speed 1 ; done;
 
-echo Creating favicon
-
+echo Creating favicon...
 convert $out/favicon-512.png -define icon:auto-resize=48,32,16 $out/favicon.ico
 
 echo Done
diff --git a/utils/refresh-events.py b/utils/refresh-events.py
index 302e451..242ba61 100755
--- a/utils/refresh-events.py
+++ b/utils/refresh-events.py
@@ -1,3 +1,6 @@
+#!/usr/bin/env python3
+# -*- coding: utf8 -*-
+
 import configparser
 import caldav
 import vobject