With slightly larger granularity, and for somewhat more mundane purposes, it's a...

inopinatus 6 months ago | parent | context | favorite | on: Portugal. The Man – Official Website Is a Google S...

With slightly larger granularity, and for somewhat more mundane purposes, it's also a neat way to present QR codes. Especially good for QR codes via email, since no attachment is required and almost every client supports tables.