From prototype to production
You shipped the mockup with AI.
Now ship the real thing — on a base that won't leak.
Your agent got you to 80% at a speed that felt almost unfair. The last 20% — real auth, payments, security, multi-tenant — is where vibe-coded apps break and leak. Here it is already built and locked down.
The last 20% is where the demo becomes a liability
"That last 20% — the part that makes your SaaS actually ready for paying customers — takes 80% of the effort, and that last 20% is where vibe coding starts to struggle." (Infinity Sky AI) The demo you can see is a small slice of a real app. The invisible 80% — error handling, security, idempotency, keeping one user out of another's data — is exactly what a paying customer depends on, and exactly what an agent ships insecure by default.
The technical cliff, in real stories
A Stripe key in the frontend
"user list was leaked on the FE... the hacker got a hold of his Stripe key and issued every customer a refund. Now he's hiring a developer to shore it up." — Hacker News (item 44739556)
170 apps leaking through one flaw
A scan found 170+ vibe-coded apps with fully exposed databases and hardcoded API keys visible in the browser bundle. The non-technical builder never knew row-level security existed. (vibe-eval.com security report, Feb 2026)
The part nobody prompted for
"AI does what you ask. It just never thinks about what you didn't ask." — web developer, r/VibeCodeDevs (161 upvotes)
The boring, dangerous parts — already solved and locked down
Auth
Real sign-in with 2FA, magic-link, OAuth, email verification, and password reset, via BetterAuth. Reset a password and the old sessions stop working.
Payments
Stripe, MercadoPago, or Polar — checkout, the customer portal, plan changes, failed payments, and signed webhooks that don't double-charge.
Security & isolation
Secrets live on the server, never in the browser bundle. A tenant-isolation guard makes sure one customer can never read another's data.
Roles that mean something
"admin" and "member" are checked on the server, not just hidden in the UI — so a modified request can't promote itself.
Point your agent here, not at an empty folder
An empty folder forces your agent to invent the architecture — and from scratch it repeats the same three security bugs every time: sessions that survive a password reset, webhooks that charge twice, and data that leaks between users. Starting from a base with walls it can't cross means it spends its effort on your idea, not on re-deriving auth and billing and getting them subtly wrong.
Not a replacement for your builder — the place you graduate to
Keep sketching ideas in Lovable, Bolt, or v0 — they're great for that. This is where you move the moment you have real users, real payments, and auth that gates other people's data. You still run a repo and your agent; you just point it at a foundation that already handled the boring, dangerous parts.
What you get on day one
A working dashboard
Account UI, settings, and the surfaces a signed-in user expects — already built.
Organizations & admin
Teams, member invitations, an admin panel, and roles — the multi-tenant spine.
A billing portal
Customers manage their own subscription — upgrade, downgrade, cancel — without emailing you.
Email & jobs
Transactional email and background jobs wired and ready to send and run.
One-command deploy
Ship to Docker or Railway with opinionated defaults — no DevOps degree required.
Docs in 3 languages
Step-by-step setup guides in English, Spanish, and Portuguese.
Straight answers before you commit
I'm not a senior developer. Can I actually run this?+
Will I have to rebuild it later?+
Is my vibe-coded app just insecure by bad luck?+
What if I already have users on my prototype?+
Ship the real thing, not just the mockup.
The security your AI didn't write — already built, CI-tested, and the base you won't have to rebuild.