actually you can choose to broadcast a nostr event that tells everyone a monero zap happened. Or not.
Either revealing the sender or keeping the sender anon.

Options. 

 Install Garnet and I'll prove you wrong right now. 

 I've heard multiplle people mention Garnet now, so I probably will take a look. 

 I've not been able to find it. What platform would I need? I only have Manjaro and a Chromebook. 

 Android. You can also try the web client Nostril, but I think it's no longer being worked on anymore. But still works atm.

https://github.com/retrnull/garnet
https://anarkio.codeberg.page/nostril/#/home/
 

 Thanks for letting me know. I'm mostly going to use my desktop #manjaro for #nostr or maybe my chromebook.