[Unit]
Description=Apply wallpaper on screen-change event
Requires=graphical-session.target
After=graphical-session.target

[Service]
Type=simple
ExecStart=/bin/sh -c "xev -root -event randr 2>&1 | while awk -v RS='\n\n' '{exit;}'; do echo 'Applying wallpaper'; feh --no-fehbg --no-xinerama --bg-fill ~/.config/lakesidesunrise.jpg; done"
Restart=always

[Install]
WantedBy=desktop.target