How to add two-factor authentication to your app
Which second factor to offer, how 2FA works in Supabase Auth, how to enforce it in the database, and how to handle lost phones without opening a back door.
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Guides for apps built with AI
Plain-language guides for people who built an app with Lovable, Bolt, Cursor, v0 or Replit: finding what broke, making it safe and getting it live.
110 articles · Page 12 of 13
TypeScript errors break the build in my AI-written project
Why an AI-written app runs in development but fails to build on TypeScript errors, how to find and fix the real error, and why not to turn the check off.
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A user can see another user's data (IDOR): find and fix it
How to test your own app for IDOR with two accounts, why AI-built apps often have it, and how to fix it with server-side ownership checks and RLS policies.
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How to turn v0 components into a real, working app
What a v0 screen is missing before it's an app, and the steps to get there: one repository, shared components, real data, error states, auth and safe releases.
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Vercel build failed? How to read the build log
Where to find the real error in a failed Vercel build log, the causes that show up most in AI-built apps, how to fix each one and how to stop it coming back.
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Accessibility basics for your web app: where to start
The accessibility problems AI-built web apps most often have, a 30-minute test you can run yourself, the fixes that matter most and where WCAG 2.2 fits.
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Who owns code made with AI tools? A plain-words overview
What tool terms, copyright rules and contractor agreements say about owning AI-generated code, and the practical steps to secure it. Not legal advice.
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My Lovable or Bolt app stopped working: how to find what broke
A step-by-step way to debug an AI-built app without being a developer: browser console, Network tab, version history, Supabase logs, and when to stop prompting.
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Security checklist before you launch an app built with AI
What to check before opening your Lovable, Bolt or Cursor app to the public: exposed API keys, Supabase Row Level Security, auth, secrets, rate limits and backups.
Read articleStill stuck with your app?
Run the free health check on your app's URL, or get the $299 App Rescue Audit: a senior engineer reviews the code and sends you a written report in 2 business days.