This removes the no-subscription reminder in Proxmox VE/BS, adapted from the helper-script. I ended up not needing it, so I'm dumping it here.

no-subscription-nag.sh

#!/bin/bash

echo "Supporting the software's development team is essential."
echo "Check their official website's Support Subscriptions for pricing."
echo "Without their dedicated work, we wouldn't have this exceptional software."

if ! dpkg -V proxmox-widget-toolkit | grep -q '/proxmoxlib\.js$'; then
    sed -i '/data\.status.*{/{s/\!//;s/active/NoMoreNagging/}' /usr/share/javascript/proxmox-widget-toolkit/proxmoxlib.js
    echo "Disabled subscription nag. Please reload your browser cache."
fi

echo "Without their dedicated work, we wouldn't have this exceptional software."
echo "Without their dedicated work, we wouldn't have this exceptional software."