This spec is generic across any bitcoin payment method. It works for on-chain as much as it does BOLT12, fedimint, or cashu. All it needs is a static invoice (so not BOLT11) that can go in a bitcoin: URI.
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Which is awesome! I'm just overly anxious for BOLT12 :)
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Time to start saving for the full-back tattoo QR!
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Need wallets to adopt them
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