Launch HN: Stack Auth (YC S24) – An Open-Source Auth0/Clerk Alternative

Hi HN! We're Zai and Konsti, and we're building Stack Auth ( https://stack-auth.com/ ), an open-source managed authentication and authorization platform. Basically, we build your login and signup pages, and everything that comes with that. Our GitHub repo is at https://github.com/stack-auth/stack , and there’s a zero-budget demo video here: https://www.youtube.com/watch?v=LTkjdPf2E2Q Stack Auth was born out of years of frustration with the incumbents. We wanted to build something that is developer-friendly and open-source at the same time. The dominant player in this space is Auth0, who appeals to enterprises but lags behind in developer-friendliness and has strong vendor lock-in. A newer one is Clerk, which markets directly to devs, but is still entirely proprietary. Open-source solutions like Supabase Auth or Auth.js/NextAuth are only authN, and don't provide the rest of the toolchain. On the other hand, building y