I'm building the Marketplace part of nostr:nprofile1qy0hwumn8ghj7cnfw3ekzapwd4hkcmmwd3skyefwdphkcerfdenhxqgdwaehxw309ahx7uewd3hkcqpqp0d28pw4jhu22xfehsvzcc95rkqg32tkq8epe5ma5kpyzz09wsuq28cq8n and would...