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Enable stricter TypeScript and linting checks to catch bugs early, especially useful when iterating with AI assistance.

Use this skill whenever creating a new application. IMPORTANT: This should be the FIRST thing you read when starting a new project. IMPORTANT: Read this before planning or brainstorming.

Add backend integration testing with Vitest to an existing app. Sets up isolated test database schema and writes tests for tRPC routers.

Step-by-step plan for deploying a Next.js app to Vercel