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Juntaditas - Group Expense Splitting App

A web app to split expenses for asados, trips, and shared purchases—track who paid what and settle balances instantly without spreadsheets.

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Juntaditas - Group Expense Splitting App
  • PostgreSQL
  • Cursor
    Cursor
  • Docker
  • Ubuntu
  • Nginx
  • Next.js
  • React
  • TypeScript
  • TailwindCSS

About This Project

A web app for splitting group expenses—think asados, trips, and shared shopping—so friends can settle up without spreadsheets or awkward math.

Key Features:

  • Next.js App Router & Server Actions – Server-rendered pages for fast loads and SEO, with mutations handled securely on the server.
  • PostgreSQL data model – Groups, members, expenses, line items, payers, and per-item splits stored relationally for accurate balances.
  • Per-item splitting – Divide each purchase across exactly who consumed or owes it, not just equal splits on the whole bill.
  • Automatic balances & simplified settlements – Computes net balances and the minimum set of “who pays whom” transfers.
  • Invite-based groups – Share a link or code; session-based access without forcing a full signup flow.
  • Spanish-first UX & SEO – Localized copy (es-AR), Open Graph, JSON-LD (WebApplication + FAQ), and PWA manifest support.
  • Responsive, accessible UI – Mobile-first layout with Radix primitives, Geist typography, and scroll-driven landing sections.

Tech Stack:

  • Frontend: Next.js 16, React 19, Tailwind CSS 4, Geist fonts
  • Backend: Next.js Server Actions, Node.js, pg (PostgreSQL driver)
  • Database: PostgreSQL (schema for groups, expenses, items, splits, snapshots)
  • Other: Zod & React Hook Form, Docker Compose, VPS + reverse proxy (production at juntaditas.com.ar), Vercel Analytics

Goal:
Ship a fast, trustworthy expense-sharing tool that feels effortless on a phone, stays free to use, and keeps group finances transparent without extra accounts or friction.