Austrian Alps live webcam wallpaper (Mac)

com.user.updatewallpaper.plist

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<!-- Put this script in ~/Library/LaunchAgents/ -->
<!-- ========================================================================== -->
<!-- IMPORTANT: After making changes to this script, run the following          -->
<!-- commands to load the changes:                                              -->
<!--                                                                         
        launchctl unload ~/Library/LaunchAgents/com.user.updatewallpaper.plist
        launchctl load ~/Library/LaunchAgents/com.user.updatewallpaper.plist 
                                                                                -->
<!-- ========================================================================== -->

    <key>Label</key>
    <string>com.user.updatewallpaper</string>

    <key>ProgramArguments</key>
    <array>
        <string>/bin/bash</string>
        <string>~/Scripts/update_wallpaper.sh</string>
    </array>

    <key>StartInterval</key>
    <integer>300</integer> <!-- Run the script every 300 seconds -->

    <!-- run script on boot -->
    <key>RunAtLoad</key>
    <true/> 

    <!-- run script on wake -->
    <key>StartOnMount</key>
    <true/>

    <key>StandardOutPath</key>
    <string>/tmp/update_wallpaper.log</string> <!-- Log output -->

    <key>StandardErrorPath</key>
    <string>/tmp/update_wallpaper_error.log</string> <!-- Log errors -->
</dict>
</plist>

update_wallpaper.sh

#!/bin/bash

# run this script every 10 minutes
# .plist is located in ~/Library/LaunchAgents/
# put this script in ~/Scripts

# time rounded to 10th minute, formatted like: 2025/02/11/21xx
NOW=$(date +"%Y/%m/%d/%H%M")

# with timezone correction (usually off)
# NOW=$(TZ=Europe/Vienna date +"%Y/%m/%d/%H%M")

# change last digit to 0
NOW=${NOW%?}0

echo "datetime: " $NOW


# array of webcams
VIEWS=("mooserboden" "trafoi")

WEBCAM_URL="https://www.foto-webcam.eu/webcam/mooserboden/${NOW}_uh.jpg"
echo $WEBCAM_URL

# if code 502 bad gateway, don't update wallpaper
if curl -s --head  --request GET $WEBCAM_URL | grep "502 Bad Gateway" > /dev/null
then
    # throw error  
    echo "502 Bad Gateway: No Image Found"
    exit 1
fi

# Set the image as the desktop background using desktopper
/usr/local/bin/desktoppr "$WEBCAM_URL"
# /usr/local/bin/desktoppr scale center

echo "Wallpaper updated at $(date)"