{"type":"rich","version":"1.0","author_name":"hodlbod (npub1jl…jynqn)","author_url":"https://nostr.ae/npub1jlrs53pkdfjnts29kveljul2sm0actt6n8dxrrzqcersttvcuv3qdjynqn","provider_name":"njump","provider_url":"https://nostr.ae","html":"Coracle does this, but the categories are hand-picked by the admin rather than being open-ended topic/user associations"}