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 Sorry one more question... do you know if I need an actual bolt card to use the extension or is it possible to diy the nfc card and hook it up with the lnbits extension? 
 A contactless bitcoin NFC is simply an LNURLw (so basically just a URL) written on an NFC. LNBits allows you to create the LNURLw that you then write onto the NFC chip that you have. Could be any NFC chip. A sticker, a dongle or an NFC enabled card. 
 Thank you! Sounds like this could be easier than I first thought 
 It is **really** easy.