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WebApp·2026In progress

Chanchito Finanzas

Stack

Next.jsTypeScriptSupabasen8nVertex AIGoogle CloudTailwind CSS

Description

Chanchito Finanzas is a web application designed to provide total control over personal finances. The core of the platform allows users to quickly log their income, daily expenses, and savings goals, offering a clear dashboard of their financial health. In addition to daily management, it features an advanced investment module that tracks complex market assets, using Artificial Intelligence to automate data entry.

The challenge

The main challenge was designing a secure and efficient database to support both a high volume of daily transactions (expenses/income) and complex, dynamic financial data. Additionally, it required automating the collection of market quotes bypassing regional blocks from AI APIs, and ensuring that each user\'s sensitive information was strictly isolated and protected.

The solution

A highly reactive frontend was developed in Next.js to streamline the manual entry of expenses and income. On the backend, a strict relational schema was implemented in Supabase with Row Level Security (RLS) policies to protect data. For advanced automation, a two-node LangChain architecture in n8n was integrated with Google Vertex AI and Server Actions with web scraping, achieving automatic categorization and real-time price updates.

Results

A fast, secure, and scalable "all-in-one" financial platform was achieved. Users can instantly visualize their monthly balances and categorize their spending without friction. The addition of the AI-automated investment module drastically reduces portfolio management time. The project demonstrates a Senior approach to Full-Stack development, prioritizing user experience and data security.