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Every card renders live from the index, so the numbers are current the moment someone opens the link. Right-click to save, or post the URL directly and let the unfurl do the work.
The summary card. Use this one for the top of a thread.

The rating, as a picture. Any symbol or underlying ticker works: /api/card/NVDAx.png, /api/card/NVDA.png. Add ?view=coins for the old card, the one showing what is priced in a stock rather than how the market around it rates.