Typstify gives Rails first-class PDF generation on Typst, the Rust typesetting engine. Controllers get `render pdf:`, templates live in app/views like every other view, and your data arrives as JSON so user content can never change the document — injection-safe by construction, compiled in an isolated sandbox directory. Ships professionally designed invoice, receipt, report and certificate templates, and can emit accessible PDF/UA-1 output for EAA and ADA compliance. No headless Chrome, no archived wkhtmltopdf binary.