Nostr is going to be great for bitcoin privacy. Here's something small I hacked together in an hour that lets you use nostr as an alternate bitcoin transaction broadcast mechanism!

GitHub
NIP-89 Ephemeral Bitcoin Transaction Package Relay by benthecarman ยท Pull Request #476 ยท nostr-protocol/nips
Hacked together the transaction broadcaster real quick: https://github.com/benthecarman/nostr-tx-broadcast