I don't think this system is already in place but for the moment we can pass on the request with #Asknostr

woah woah wait a minute... you can set up filters on a DVM?

nostr:nprofile1qqsf03c2gsmx5ef4c9zmxvlew04gdh7u94afnknp33qvv3c94kvwxgspr9mhxue69uhkscnj9e3k7unpvdkx2tnnda3kjctv9uq32amnwvaz7tmjv4kxz7fwv3sk6atn9e5k7tcppemhxue69uhkummn9ekx7mp0g4rts7

https://github.com/coracle-social/anchor by nostr:nprofile1qqsf03c2gsmx5ef4c9zmxvlew04gdh7u94afnknp33qvv3c94kvwxgspr9mhxue69uhkscnj9e3k7unpvdkx2tnnda3kjctv9uq32amnwvaz7tmjv4kxz7fwv3sk6atn9e5k7tcppemhxue69uhkummn9ekx7mp0g4rts7 Can do postmark as well as push notif with Firebase or Apple push

Yes, I want to be notified when nostr:npub1k7vkcxp7qdkly7qzj3dcpw7u3v9lt9cmvcs6s6ln26wrxggh7p7su3c04l speaks

Iirc there's a few ways to get RSS from Nostr feeds, of which you could use an RSS to Email tool. Would be hacky but might be the easiest way to do so.