QR code generation
Support for QR code generation for slides. Some possible implementations:
- GitHub - daamien/pandoc-latex-barcode: A pandoc filter to insert barcodes and QR codes in a latex/pdf document.
- graphics - LaTeX Package to generate QR codes? - TeX - LaTeX Stack Exchange.
- A custom macro (processed by a shell script) that triggers libqrencode (Debian Package Tracker).