Same invoice. Left: wicked_pdf, 82 lines of ERB with the CSS inlined because that's what wkhtmltopdf pushes you toward. Right: 55 lines of Typst. The footer is the tell. On the left it needs a second…

Spent an hour profiling slow PDF generation. The bottleneck wasn't the typesetting. It was scanning the OS font directories. Every single render. 58ms → 4ms with one line: c.ignore_system_fonts =…

wkhtmltopdf was archived in 2023. No security patches. A WebKit fork from another era. It is still the engine under wicked_pdf and pdfkit, which is still how most Rails apps generate invoices. I got…