From $427 to Free: Replacing Auth0 with Open Source in 30 Minutes

Managed authentication platforms like Auth0 impose significant costs even for simple use cases, creating an opportunity for open-source alternatives running on serverless platforms. This developer's experience demonstrates that modern libraries can replace vendor solutions with minimal migration effort, challenging the traditional assumption that authentication requires a managed service. As more developers explore self-hosted options, the infrastructure landscape is shifting toward commoditized, cost-effective authentication rather than expensive feature-rich platforms.