sPATH=$(dirname $(realpath -L $(which spotify)))  # absolute path to Spotify
cd ${sPATH}/Apps/

sudo cp xpui.spa xpui.spa_bak  # create a backup, in case of trouble
sudo unzip -p xpui.spa xpui.js | sed 's/{adsEnabled:\!0}/{adsEnabled:false}/' > xpui.js
sudo zip --update xpui.spa xpui.js
sudo rm xpui.js