The app would need to be updated as it won't work with the RSS F3 car without some modifications. I can do that tonight but may be too short notice for everyone to use it.Are we going to be using the DRS App made by @Celtic Pharaoh for the F1 races back in the day? (Beeps when within 1s at DRS zone during race) I'll be using it rather than abusing DRS all the time - seems fairer especially at Monza.
https://www.racedepartment.com/downloads/acrl-drs-racedepartment-flavour.19869/
Best thing I would suggest is making a gentleman's agreement not to use DRS unless the Realtime app shows a gap less than 1.0 to the driver ahead. Probably best brought up at the end of qualifying in TS