How HN: Go-dev-auth zero-dependency authentication library for Go

Go-dev-auth is a comprehensive, zero-dependency authentication library for Go that provides email/password login, social sign-on, sessions, two-factor authentication, passkeys, magic links, and other advanced features using only the standard library. Currently in pre-1.0 status, the library is already in production use and undergoes rigorous testing including fuzzing, race detection, and conformance testing against SQLite, PostgreSQL, and MySQL databases.