Learn how to transform a 'vibe-coded' UI into a production-ready financial platform. This guide covers architecting secure databases with Supabase, integrating real-time data via Plaid, and implementing robust access controls for LPs and fund teams.

High functionality is nothing without high governance. You’re building a wall at the data layer, not just hiding a tab in the UI, to ensure the 'pretty' frontend becomes a trustworthy window into a very secure house.
I have been developing web apps with Claude code / cowork and want to build a secure app to showcase my fund portfolio including multiple tabs on overall performance, investment level detail, qualitative and quantitative data, and internal facing porfolio management guidance. Setting up front end is easy - make a tutorial on bringing this to life as a secure app for lps and fund team with high functinality


샌프란시스코에서 컬럼비아 대학교 동문들이 만들었습니다
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샌프란시스코에서 컬럼비아 대학교 동문들이 만들었습니다

Lena: You know, Miles, I was talking to a friend who’s been using Claude Code to build these gorgeous web app frontends for their fund portfolio. They’ve got the tabs, the performance charts, the whole "investor-ready" look—but then they hit this wall. It’s like having a stunning storefront with no lock on the back door where the actual financial data lives.
Miles: Right, and for Limited Partners, that "back door" is everything. It’s interesting how we can vibe-code a UI in minutes, but the real challenge is the "Secure Core." I mean, did you see that one developer, Austin Xu, built a 41,000-line finance app in just 20 hours? The secret wasn't just the UI; it was using Claude to architect the database and security layers first.
Lena: 20 hours for 41,000 lines? That’s wild. But for our listeners who have the "pretty" frontend and now need to handle sensitive LP data and internal management guidance, where do we even start?
Miles: We start by moving beyond the mockup. We need to talk about using Supabase for Row Level Security and connecting real brokerage data via Plaid so the numbers actually move. Let’s explore how to bridge that gap between a great-looking dashboard and a production-ready, secure financial system.