01
Identity
Supabase Auth with email and OAuth providers, plus row-level security scoped to wallet ownership.
Verified Case Study
Cross-Border Remittance Startup
Rapid MVP Launch for Seed-Stage Fintech
Translated a raw PRD into a production-grade multi-currency wallet with Stripe Connect and Supabase Auth, securing a $1.2M seed round.
- Industry
- Fintech
- Engagement
- 11 days · Sprint
- Delivered
- 2025
Measured impact
Outcomes, not activity.
11 Days Total
Time-to-Alpha
Zero Debt
Architecture
$1.2M Raised
Seed Round
The Problem
Where the existing system broke down.
The founding team needed a credible, working product for investor diligence within two weeks without creating architecture debt that would block a real launch.
What changed after delivery
- Investor demo used the real product, not a prototype.
- Security review passed without structural rework.
- First engineering hire onboarded directly onto the codebase.
The Architecture
A system designed for production pressure.
A focused Next.js application with Supabase Auth, row-level security, and Stripe Connect handles onboarding, wallet balances, and transfers. Every domain boundary is typed, migrations are versioned, and the infrastructure is deployable from day one.
02
Wallet ledger
Double-entry balance changes with idempotent transfer intents and reconciliation checkpoints.
03
Payments
Stripe Connect onboarding and payout flows wrapped in typed server actions.
04
Deployment
Preview environments, migrations, and smoke tests configured before the first investor demo.
Tech stack
Next.jsSupabaseStripe ConnectTypeScriptPostgreSQL
Client testimonial · 5.0 / 5.0
“We demoed a real multi-currency flow eleven days after kickoff. The codebase was clean enough that our first engineering hire could extend it without a rewrite.”
Marcus Thorne
Co-Founder, Cross-Border Remittance Startup
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