The 6 things to check in your v0 app before you ship
v0 turns a prompt into a real Next.js app on Vercel — but it doesn't decide who's allowed to see your data. Six things to check before you ship,…
Aliteq
Sam Ortega · Build Editor
The short answer
Before strangers use an app you built with v0, check six things: (1) one person can't see, change or delete another person's data, (2) no secret key is behind a NEXT_PUBLIC_ variable, because those…
1. People can't reach each other's data — the rule is yours to confirm
2. Nothing secret behind NEXT_PUBLIC_ — that prefix means the browser
3. Keys in Vercel env vars — not in the code
4. Rate limits — cap sign-ups and AI calls
5. Backups — on whatever database you attached
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The 6 things to check in your v0 app before you ship