\input regression-test.tex
\documentclass{article}
% No tagging: the keys tag and alt must be known but inert
% (tagbridge loaded after qrcode).
\usepackage{qrcode}
\usepackage{tagbridge}
\begin{document}
\START

\qrcode{https://example.org/default}

\qrcode[alt={Link to the course page}]{https://example.org/alt}

\qrcode[tag=artifact]{https://example.org/artifact}

\qrcode[tag=artifact,alt={ignored}]{WIFI:T:WPA;S:lecture;P:secret;;}

\TYPE{done}
\END