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QR code rule
(lemmy.dbzer0.com)
Be sure to follow the rule before you head out.
Rule: You must post before you leave.
I think I knew the answer to that last question about twenty years ago, but I can't answer it with any guaranteed accuracy now, sorry.
Actually ... I thought it was carriage return (emulate sending the typewriter carriage back to the starting position), line feed (emulate typewriter moving paper up by one line). Or, to put it another way: ding!