Here's a diagram I made for NIP-46 signing flow with Frostr...
- nostr client sends nip46 request to relay
- igloo server listens for nip46 request
- approves
- passes to other signer (igloo-cli) for partial sig
- gets response from cli and completes sig
- passes back to relay
- nostr client receives signed note and publishes to relays

All of thise happens within like 2 seconds wtf