Show HN: I open sourced the QR designer from my failed startup
553 by koch | 58 comments on Hacker News.
My designer is somewhat special, if I do say so myself, as it allows you to put arbitrary designs in the middle area of the QR while still being totally scannable.
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Path to a free, self-taught education in Computer Science 495 by netfortius | 130 comments on Hacker News.
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U.S. Postal Service starts nationwide electric vehicle fleet, buying 9,250 EVs 444 by lxm | 336 comments on Hacker News.
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So you want to study mathematics 507 by musgravepeter | 292 comments on Hacker News.