Seagull Starter: Ship your SaaS in a weekend — auth, Stripe & AI included

Production-ready Next.js 16 SaaS starter with auth, payments, and AI — ship this weekend. • Auth.js v5: email + Google/GitHub OAuth, roles & sessions included • Stripe: checkout, billing portal, webhooks syncing plan + AI credits • Streaming AI chat with per-user credit quotas • Prisma 7 + zero-config SQLite (Postgres in one line) • Tailwind v4 dark mode, landing/pricing/dashboard/admin pages • One-click Vercel deploy, MIT license Runs in demo mode with no API keys. $79 — half of ShipFast.

Hey Product Hunt! I'm Jiang Sheng, the developer behind Seagull Starter. I spent months shipping side projects the hard way — every time I'd rewire auth, re-add Stripe checkout, and re-plumb webhooks before writing a single line of real product code. It was the same boring boilerplate, over and over. So I built Seagull Starter: a production-ready Next.js 16 template with Auth.js v5 (email + Google/GitHub OAuth), Stripe (checkout, billing portal, webhooks syncing plan + AI credits), and streaming AI chat with per-user quotas — all wired together so you can ship a SaaS in a weekend instead of a month. It runs in demo mode with zero API keys, so you can try the whole flow before touching any config. I'd love your feedback — what should I add next?