How to add passwordless magic link login to a Next.js SaaS -- generating a signed token, sending the login link via Resend, verifying it in a callback route, and expiring used tokens in Drizzle ORM.
How to build a pre-launch waitlist in a Next.js SaaS -- a Drizzle ORM schema that tracks signups and referral chains, a position counter, and a confirmation email via Resend so every signup has a share link from day one.
How to add email verification to a Next.js SaaS -- a signed JWT link sent via Resend on signup, a verify endpoint that marks the user confirmed in Drizzle ORM, and a service-layer guard that blocks unverified users from protected actions.
How to build a complete password reset flow in a Next.js App Router SaaS -- generating a signed JWT reset token, sending it via Resend, and updating the password hash with Drizzle ORM.
How to wire up transactional email in a Next.js SaaS using Resend and react-email -- from template components to service-layer sends and feature flags that keep the dev sandbox clean.