Next.js Monorepo Integration Advisor

Our team is bringing several applications into a single codebase powered by Next.js 14, Supabase, full-stack TypeScript, and TurboRepo with server actions. The core objective is to integrate microservices—starting with user authentication—while establishing rock-solid patterns the rest of the platform can follow.

Here’s what I need from an adviser who knows this stack inside-out:

• A clear architecture blueprint that maps folder layout, shared packages, environment management, and CI/CD.
• A working starter repo (or patch set) that installs with one command and builds every app without errors.
• Concrete, well-documented examples: a microservice for auth wired to Supabase, exposed to Next.js via server actions, complete with typed requests and responses.
• Best-practice guidelines that cover TypeScript conventions, testing, linting, versioning, and release workflows inside TurboRepo.

Acceptance criteria:
• One-command setup (pnpm preferred) with passing builds across all workspaces.
• Supabase types generate automatically and stay in sync.
• Auth service is callable from any application in the monorepo with strict TypeScript safety.

Everything will live in GitHub