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Pretix Rolls its Own Linux Driver for Ticket Printing

2025-05-25

Pretix version 1.8 introduced shipping management, but the recommended printer, uITL+2003CF, only offers a Windows driver. To support Linux users, the Pretix team developed a custom CUPS filter, `rastertofgl`, written in Python. This filter converts CUPS raster data into FGL code, enabling ticket printing on Linux systems with a corresponding PPD file. While some issues remain, this driver provides a convenient solution for Pretix users on Linux.

CAPTCHA is Dead: The Ticketing Industry's Bot War

2025-05-25

Ticketing websites face a persistent challenge: bots used by scalpers to snatch tickets. Traditional CAPTCHAs, such as image and audio recognition, have been defeated by advanced machine learning. Behavior-based anti-bot technologies, while effective, compromise user privacy; while proof-of-work methods are too inexpensive for scalpers. The author proposes a "BAP theorem," stating that anti-bot systems can only satisfy two out of three properties: "bot-resistance," "accessibility," and "privacy." Ultimately, websites must choose between high privacy and high security; technical solutions alone are insufficient. Legislation and social approaches might be more effective.