Building a SaaS using Agentic Coding - Part 6

Part 6 of a SaaS build series using agentic coding in Cursor. The session covers adding mock fixture support via environment variables to avoid costly API calls during testing, setting up Drizzle ORM with PostgreSQL via Docker Compose, integrating Better Auth for email/password login, and building out a user dashboard with shadcn components. The author uses Cursor's Composer 2 (backed by Gemini 2.5) for most tasks, sharing practical tips on prompt sizing and when to fall back to more powerful models like Opus or Codex.