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Yes! The QR code is nothing more than the text [email protected] (converted into a slightly complex encoding system) and stored as a QR code. You can type that in direct into most wallets and they know what to do with it.

You can also use [email protected] if you want HBD.

This is cool! I can now withdraw the fountainapp SATS to Hive this way. Handy tool indeed. I hope ecency and other frontends add this into their frontend :)

I'm not sure, I know they said they would implement withdraw to a lightning address I'm not sure if they've done it yet. Definitely send them a message and ask for this if you want it.