{"type":"rich","version":"1.0","title":"/dev/fd0 wrote","author_name":"/dev/fd0 (npub1v6…4nzyr)","author_url":"https://yabu.me/npub1v6qjdzkwgaydgxjvlnq7vsqxlwf4h0p4j7pt8ktprajd28r82tvs54nzyr","provider_name":"njump","provider_url":"https://yabu.me","html":"How can I add custom fields to metadata of a nostr profile?"}