Supabase · Before public users
Demo Supabase projects often leave tables open and service keys in the client. This checklist turns row rules fail-closed, isolates the service role, splits prod from preview, and proves Auth URLs — before public users arrive. Keep the data model you built. Close the defaults.
30 min · senior team · leave with a clear next step
Company-level evidence
Review methodologyIn plain words
Hardening Supabase means row rules deny by default, the service role never ships in the client, preview and prod are different projects, and Auth URLs match the real host. You keep the schema you proved. Public users arrive only after wrong-eye reads fail.
Where vibe Supabase leaks
Builders enable Auth UI while RLS stays off. Fix rules before ads.
Deny by default. Test cross-tenant.
Move server-only. Rotate if exposed.
Split. Different secrets.
Prod callbacks on the real origin.
The Supabase lock week
Public users last.
01
Per table. Per tenant key.
02
Rotate if it ever touched a client.
03
Migrate schema. Fresh secrets.
04
Prod host only on prod.
How to
Fail closed first.
Step 01
Tenant key named.
Step 02
Probe wrong-eye reads.
Step 03
Rotate exposed keys.
Step 04
Do not promote the demo project.
Step 05
Test sign-in on the real host.
Step 06
Before paid traffic.
Read next
These pages are already on the site. Use them to pressure-test the bet before a call.
Verified on Clutch · 29 reviews
“What impressed us most about CodeCross was their ability to deeply understand our vision and translate it into a complete digital solution. Unlike many agencies that just focus on technical delivery, CodeCross approached our project like true partners.”
Harris Edelmam
CEO · Ombligo, Inc.
Read on Clutch“Their project management was top-notch.”
Greg Moreno Earle
Technology Executive · Driven Brands Inc.
Read on Clutch“Their eye for clean, modern design combined with technical excellence was very impressive.”
Robert Valentino
Founder · Lean Coach
Read on Clutch“We appreciated Codecross's practiced approach to development.”
Brice Wiley
Marketing Director · Lex Mundi
Read on Clutch“On the development side, everything has gone quite smoothly and perfectly.”
Brandon Patterson
Co-Owner · Cap Tech Services, LLC.
Read on Clutch“They are very thorough in their approach to the project.”
Lukas Haynes
Member Board of Directors · Protect Our Winters Action Fund
Read on ClutchInternals
Stay inside the vibe-coding cluster, or open booking and the Austin money page.
Continue
Shared intents, checklists, comparisons, and the builder five-packs.
Continue
Org Git and second-engineer ship.
Continue
When Lovable wired the Supabase project.
Continue
Bring the Supabase project ref. We probe RLS before public users.
Continue
Studio page if you are comparing Austin shops, including us.
Before you book
Prefer writing? Send project details and we reply within one business day.
RLS enabled on every user table; policies grant only matching tenant or owner; a second account’s select/update returns empty or deny. Open “allow all” policies are a fail.
Browser bundles, mobile apps, shared chat logs, and committed env files. Server-only paths only. If it appeared in a client, rotate immediately.
Prod project lists the real origin and deep links; preview keeps localhost or preview hosts. Mixing them breaks sign-in or leaks users to the wrong project.
Scheduled backups, a proven restore onto a scratch project, and migrations applied forward-only with a named owner. Demo-only dashboards are not a plan.
Bring the project ref and where the service role lives today. We fail closed — then invite.
Prefer writing? Send project details on the contact page.