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    Prototype to production

    Take your Lovable, Bolt or FlutterFlow app to production

    AI builders and no-code tools get you to a working demo fast. Real users, real payments and Google expect more. I review what you have, tell you honestly what it needs, and do the work: harden it, migrate it, or rebuild it.

    • Reply within 4 hours
    • Honest assessment before any quote
    • You keep the code and the accounts

    Sound familiar?

    The prototype did its job. These are the signs it has reached the edge of what it can carry.

    • It works in the demo, then breaks once real users and real data arrive.
    • Every new prompt fixes one thing and breaks two others.
    • You are not sure who can read your database: row-level security, exposed keys, admin routes.
    • Payments or webhooks fail quietly and you hear about it from customers.
    • Google is not indexing your pages, or link previews show the wrong title and image.
    • FlutterFlow cannot do the custom feature you need next.
    • The developer who built it has gone quiet and nobody else understands the code.

    Three ways this usually goes

    I tell you which one fits before you spend anything. Sometimes the honest answer is that it is fine as it is.

    Harden it

    When the foundation is sound.

    Lock down authentication and data access, move secrets server-side, fix the payment flow, add error tracking, and clean up the parts users touch most. You can keep building in your tool afterwards.

    Migrate it

    When the app is fine but the platform is the limit.

    Move a Lovable or Vite app to Next.js for server rendering and SEO, or a FlutterFlow app to plain Flutter, keeping your users, data and store listings.

    Rebuild it

    When fixing the generated code would cost more than replacing it.

    The prototype becomes the spec. We keep everything you learned from it and rebuild the core properly, priced like an MVP build.

    I have done this on live products

    Each of these is public. Check the store listings and the live sites yourself.

    FlutterFlow → Flutter

    PeptiSync

    Started as a FlutterFlow and Firebase MVP with a Wix site. I rebuilt the app in Flutter with Riverpod while the FlutterFlow version stayed live, moved the site to Next.js, and kept the same Firebase backend. No user-facing downtime.

    Lovable → Next.js

    This website

    Began in December 2025 as a Lovable-generated Vite and React app, self-hosted on Vercel, so crawlers that do not run JavaScript saw an empty page. In 2026 I moved it to the Next.js App Router. Its pages now ship as server-rendered HTML with their own metadata, structured data and a sitemap, and the main pages are in six languages.

    Production rescue

    Zeron.dev

    The checkout on this marketplace had been broken for weeks and the previous developer could not fix it. I found the root cause in the production code and restored payments, then added an interactive map for product discovery.

    What I check first

    The parts AI builders and no-code tools most often get wrong, and the ones that hurt most when they fail.

    Authentication and access rules

    Who can read and write what. Supabase row-level security or Firestore rules, admin routes, session handling.

    Secrets and API keys

    Nothing sensitive shipped to the browser or bundled into the app.

    Payments and webhooks

    Stripe, RevenueCat or in-app purchases that are verified, retried safely and recoverable.

    Data model

    Whether it holds up at ten times the data, and how to migrate it if it will not.

    Rendering and SEO

    Whether Google and AI crawlers can read your pages, plus metadata, sitemap and structured data.

    Errors and monitoring

    You hear about problems before your customers do.

    Deployment and ownership

    Repository, hosting, domains and store accounts in your name, not a freelancer's.

    How it works

    No long discovery phase. You find out what your app needs before you commit to anything.

    1. 1

      Send it over

      A link, a repo invite or an export, plus a short note on what is going wrong. I sign an NDA first if you want one.

    2. 2

      Honest assessment

      I reply within 4 hours. After a look at the code and a free 30-minute call, you get an honest assessment, a delivery plan and a quote: harden, migrate or rebuild.

    3. 3

      Weekly progress

      Fixes or the new build land on a staging environment every week, so you see progress on the real thing, not status reports.

    4. 4

      Handover

      Source code, documentation and every account in your name, plus two weeks of post-launch support.

    What does it cost?

    It depends on what the review finds, so I quote after looking at the code instead of guessing. Hardening an app is usually a much smaller job than rebuilding it. When a rebuild is the right call, it is priced like any MVP build.

    Want a ballpark first? The cost calculator gives you one in a couple of minutes.

    Frequently asked questions

    Can you work with code generated by Lovable, Bolt, v0 or Cursor?

    Yes. Underneath it is ordinary React and TypeScript, usually with Supabase or Firebase, so I read it like any other codebase. Generated code tends to repeat itself and skip edge cases, which is exactly what the review is for.

    Do I have to stop using Lovable or FlutterFlow?

    No. If the foundation is sound you can keep building in the tool while I fix what it cannot, through Lovable's GitHub sync or FlutterFlow's custom code. If the tool itself is the limit, we plan a migration so you are not stuck.

    Is my Lovable app bad for SEO?

    Not necessarily any more. Lovable says apps created from 13 May 2026 (later on Enterprise plans) use server-side rendering, and older React and Vite apps hosted on Lovable are pre-rendered for verified crawlers. If you exported the code and host it yourself, or you need full control over metadata, sitemaps and structured data, moving to Next.js is often worth it. My Lovable SEO guide explains how to check which case you are in.

    Will you just tell me to rebuild everything?

    No. A rebuild is the most expensive option, so I only recommend it when fixing the existing code would cost more. Often the right answer is targeted hardening, and sometimes the honest answer is that the app is fine as it is.

    The previous developer disappeared. Can you take over?

    Yes. I work from the code, the database and the hosting accounts, so the original developer does not need to be available. On Zeron.dev the previous developer could not fix a broken checkout; I found the cause and restored payments.

    Who owns the code and the accounts?

    You do. The repository, hosting, domain and app store accounts stay in your name, and you get the source code and documentation at handover.

    What do you need from me to start?

    A link to the app, read access to the repository or project (or an export), and a short note on what is going wrong and what you want next. A screen recording of the problem helps.

    Guides

    Written from the migrations above, for founders deciding what to do next.

    Related services

    Send me what you have built

    A link or a repo is enough to start. You get an honest answer about what it needs, even if the answer is “nothing yet”.