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A comment on A QR code built from Emoji. Parent comment

Re:A QR code built from Emoji by froj on Wednesday December 09, 2020 @07:32AM (#25357854)
What about data matrix [1] instead of QR? The smallest symbol possible is 10x10 so that should be tweetable.

[1] https://en.wikipedia.org/wiki/Data_Matrix

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