Clerk Install & Auth Overview Set up Clerk SDK and configure authentication for Next.js, React, or Express. This skill covers SDK installation, environment variables, ClerkProvider, middleware, and initial auth verification. Prerequisites - Node.js 18+ - Package manager (npm, pnpm, or yarn) - Clerk account at dashboard.clerk.com - Publishable Key ( ) and Secret Key ( ) from Clerk Dashboard API Keys Instructions Step 1: Install SDK for Your Framework Step 2: Configure Environment Variables Ensure is in : Step 3: Add ClerkProvider (Next.js App Router) Step 4: Add Middleware Step 5: Create Sign-…