NEXT_PUBLIC_CLERK_PUBLISHABLE_KEY=your_clerk_pub_key CLERK_SECRET_KEY=your_clerk_secret_key NEXT_PUBLIC_CLERK_SIGN_IN_URL=/sign-in NEXT_PUBLIC_CLERK_SIGN_UP_URL=/sign-up NEXT_PUBLIC_CLERK_AFTER_SIGN_IN_URL=/ NEXT_PUBLIC_CLERK_AFTER_SIGN_UP_URL=/