No, you don’t have to wait for the whole carousel of QR codes to come round again if you miss one – the protocol uses an error correction scheme (fountain codes) which means that only a sufficient number of unique unordered frames have to get scanned.

This is a web app that you can add to your home screen and then use from the Android ‘Share’ menu. It’s practical for files >500kb in size.

albert-tomanek.github.io/txqr-js/dist/demo.html github.com/albert-tomanek/txqr-js/tree/master

This is a vibe-coded JS translation of a Go original (link in repo).