Next.js SaaS Boilerplate with BetterAuth, RBAC, i18n & Production-Ready Setup (opens in new tab)

Every time I started a new Next.js project, I lost the first week to setup. Authentication. Internationalization. Role-based access. SEO meta tags. Environment validation. Error monitoring. Linting. Testing. CI pipelines. By the time I had a working foundation, the excitement was gone, buried under config files and boilerplate glue code. After doing this across multiple SaaS projects, I stopped and asked myself: What if I built the foundation once, properly, and never had to do it again? So I...