Start using Flatpaks as the main install method for any desktop apps

overlay/etc/cont-init.d/90-configure_sunshine.sh

@@ -5,7 +5,6 @@ if ([ "${MODE}" != "s" ] && [ "${MODE}" != "secondary" ]); then
     if [ "${ENABLE_SUNSHINE:-}" = "true" ]; then
         echo "Enable Sunshine server"
         sed -i 's|^autostart.*=.*$|autostart=true|' /etc/supervisor.d/sunshine.ini
-        chmod +x /usr/bin/start-sunshine.sh
     else
         echo "Disable Sunshine server"
     fi