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Alternative to Supabase

Zipper is a Supabase alternative.

Zipper The Cellar is a Supabase-shaped data plane: sealed SQL, row policies, and branches — plus Crown, Keep, and Site Hosting already in the palace.

  1. 1. Seals instead of a database URL. No long-lived postgres:// string in Vercel env. A seal binds role, tables, ops, and expiry. Revoke instantly.
  2. 2. Default-deny engine RLS. Authenticated seals only see rows their predicate allows. Service seals bypass. Tenant SQL never hits the host parser.
  3. 3. The rest of the backend is named. Auth is The Throne Room. Files are The Archives. Functions are Edge Functions. You do not rebuild the palace around one database product.
How The Cellar worksZipper vs CloudflareStart free
Zipper

Honest production on two VPS nodes: application-layer DDoS and WAF, in-process cache, DNS-JSON, and image delivery. A Spatial Regal Technology platform by Spatial Regal Digital Ltd.

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