4 ms·

Since they take a screenshot of the console they could output a qr code and read that.

• fapjacks 9y ago
  That's sort of what they're doing. It's just a two-bit QR code: Red, and Not Red.
  • gumoro 9y ago
    So, one bit ;)
    • fapjacks 9y ago
      Hah! Yes, totally. Haha I wonder why I said that?
      • BraveNewCurency 9y ago
        There is also a "not decided yet" state. Hence, you were right, it needs two bits. :)
• dom0 9y ago
  Patching the font colours are probably a few lines of diff, adding a QR code to a text-mode display... way more complicated.