{"type":"rich","version":"1.0","author_name":"voca (npub17h…y3hpu)","author_url":"https://nostr.ae/npub17h9fn2ny0lycg7kmvxmw6gqdnv2epya9h9excnjw9wvml87nyw8sqy3hpu","provider_name":"njump","provider_url":"https://nostr.ae","html":"Voca uses sherpaTTS under the hood, maybe you can just use that directly? I remember a play button in older amethyst versions that did TTS."}