UNS (Universal Namespace) enables builders to externalize user onboarding and allow their users to get a unique portable and interoperable username (universal name) which can be used across multiple platforms who has integrated UNS onboarding API.
At NostRica, we deployed a Nostr relay (nostr-dev.universalname.space), so users adding the UNS relay to their clients, will experience smooth searchability across platforms, find UNS users and upload their profile to UNS.