nips-changes on Nostr: Clarify closed/private, add hidden to nip 29 (#2106) #nips_changes Clarify closed/private, add hidden to nip 29 (#2106) #nips_changeshttps://github.com/nostr-protocol/nips/commit/fb18d4c74f5d1054c673fa9aa1e0778f3f70c8cc