StackPatch – Patch authentication into your Next.js app with one command

Summary: StackPatch is a CLI tool that adds production-ready authentication to Next.js projects by generating real, editable files for Google and GitHub auth, protected routes, and session handling without relying on SaaS or runtime dependencies.

What it does

It patches authentication code directly into your Next.js codebase via a single command, creating configuration, routes, providers, and environment variables as actual files in the repository.

Who it's for

Developers building Next.js applications who want to integrate authentication without using hosted services or abstractions.

Why it matters

It eliminates repetitive setup by providing a reusable, open-source solution that fully owns and exposes authentication code within the project.