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I will build your supabase and nextjs saas starter with auth and billing
Mateus Zingano
Über diesen Service
Every SaaS starts with the same boring weeks: auth, billing, protected routes, multi tenant data. I give you that base already built and tested, so you start on feature one, not on plumbing.
I ship real products on this exact stack. I built ShipSealed, an open-source RLS toolkit and SaaS boilerplate for Supabase whose tenant isolation is proven by automated tests, and Zingui, a live finance app. You get the same foundation I trust in production.
WHAT I BUILD
Next.js and Supabase with email and Google auth, protected routes and a clean project structure. On higher tiers, subscription billing with a user dashboard, and full multi tenant with teams and orgs where one tenant can never read another tenant's data, proven with tests.
WHY ME
Real shipped products, not a theme I bought. Security is the default, not an afterthought. You get the source code, a clear structure and honest guidance on what to build next.
Tell me about your project and I will point you to the right package before you order.
Lerne Mateus Zingano kennen
Mateus Zingano
Full Stack Developer, Data Security and Excel Automation
- AusBrasilien
- Mitglied seitJuli 2026
- ⌀ Antwortzeit1 Stunde
Sprachen
Portugiesisch, Englisch
Full-stack developer and solo creator of two live products: ShipSealed (open-source RLS tools + SaaS boilerplate for Supabase, with automated tenant-isolation tests) and Zingui (personal finance app with CSV/OFX import, LGPD compliant).
I deliver working, tested products — not just code. I also understand the wider landscape of a digital project (stores, mobile apps, AI automation, payments) and help you find the right solution first — fair pricing, scaled to your project.
If your project handles sensitive data or needs real automation, let's talk.
Mein Portfolio
FAQ
Do I own the code and can I reuse it?
Yes. You get the full source code and it is yours to use, modify and reuse in any project. No lock-in and no hidden license.
Which auth and billing providers do you use?
Auth is Supabase, with email and Google out of the box and more on request. Billing can be Stripe or Paddle, your choice. I wire it end to end in test mode so you can go live safely.
Can you add my custom features too?
This gig delivers the starter foundation. Tell me the extra features you need and I will send a custom offer on top of the package.
