# Case Study: Proyect.ar — AI Architecture Rendering SaaS

- **Client:** Internal SaaS product
- **Role:** Full-stack solo developer (C5H)
- **Duration:** 3 months
- **Live:** https://proyect.ar
- **Stack:** Next.js 15, OpenAI API, DALL-E, Gemini, SQLite, NextAuth, MercadoPago, Sharp, TypeScript, TailwindCSS

## Summary

AI-powered SaaS generating photorealistic architectural renders from sketches, floor plans, and 3D models. Features credit-based billing, a referral system, 8+ rendering styles, and MercadoPago payments.

## The Challenge

Architects, interior designers, and real estate developers needed an affordable, fast way to produce photorealistic renders from rough sketches. Traditional 3D rendering means $500-2000/year software, high-end GPUs, steep learning curves, and hours or days per render.

## The Solution

A complete SaaS using OpenAI DALL-E and Google Gemini to generate renders from uploaded images in minutes. Credit-based billing, referral rewards, 8+ architectural styles (modern facades, minimalist interiors, luxury, landscaping), image processing with Sharp, and a smooth upload-to-download flow.

## Results

- Active user base generating renders daily
- Automated credit system handling payments and usage
- Referral system driving organic growth
- Landing page converting leads to paid users