Read the abstract ➤ https://www.conf42.com/Chaos_Engineering_2025_Denis_Ermakov_library_fundamentals_need Other sessions at this event ➤ https://www.conf42.com/ce2025 Join Circle ➤ https://conf42.circle.so/checkout/subscribe Chapters 00:00 Introduction and Background 00:26 Project Overview at TechFlow 01:40 Exploring NextAuth.js 03:38 Building Custom Authentication 04:55 Data Flow in the Application 06:35 Evaluating the Cost of Alternatives 09:39 Final Thoughts and Homework 11:03 Conclusion and Farewell