A new experimental project offers a unique approach to QR code generation: a TrueType font that renders bracketed text as QR symbols. Developed by jimparis, this "QR Font" allows for the embedding of QR codes directly within standard text documents, maintaining readability for the surrounding characters. The project generates OpenType fonts that leverage advanced shaping features, specifically GSUB (Glyph Substitution) rules, to transform delimited input into QR code patterns.

Three font variants are available: qrfont-1L (21x21 modules, up to 17 characters), qrfont-2L (25x25 modules, up to 32 characters), and qrfont-3L (29x29 modules, up to 53 characters). These fonts utilize byte mode, a fixed mask pattern, and rely on `[` and `]` characters as delimiters. The generation process is automated, with a build script that outputs glyph outlines and GSUB logic, compiling them into distributable `.ttf` files. Default builds include parsing, byte expansion, Reed-Solomon parity, module placement, and fixed mask rendering.

The project employs uv for Python dependency management and can be built using `uv run tools/build_font.py`. Users can optionally specify a different base TrueType font for customization. For faster builds focusing solely on layout, a zero-parity option is available. The generated fonts are based on Liberation Sans Regular and are licensed under the SIL Open Font License, Version 1.1. This proof-of-concept demonstrates a novel method for integrating data-rich symbols into text, contingent on an OpenType-aware rendering environment.