Turning a Hackathon Prototype into a Scalable Solution | São Paulo .

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May 28, 2026 · São Paulo

JustaLuz: Scaling a Hackathon Prototype

Learn how a hackathon prototype evolved into a scalable solution for parsing Brazilian utility bills, addressing common errors and guiding users through disputes.

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  • Gemini API
    Integrate Google's multimodal Gemini models (Pro, Flash) into your application via REST or SDKs: generate content, process up to 1000-page PDFs, and execute code with a 2-million token context.
    The Gemini API delivers Google's most advanced models (Gemini 3 Pro, 2.5 Flash) directly into your applications. Leverage its multimodal power: process text, images, video, and audio inputs for tasks like content generation, summarization, and visual understanding. Utilize key features including the 2-million token context window, structured JSON output, and function calling to build complex, reliable agents. Choose your integration: use the standard REST API, streaming endpoints (SSE), or the Live API (WebSockets) for real-time conversational experiences. Get started with the free tier and robust SDKs for Python, Java, Go, and more.
  • SwiftUI
    SwiftUI is Apple’s declarative framework for building native user interfaces across all Apple platforms with a single, unified codebase.
    This is Apple’s modern UI toolkit, leveraging the power of Swift to deliver a declarative syntax: you state what your UI should do, not how. It’s a unified system, meaning you write one set of code to deploy on iOS, iPadOS, macOS, watchOS, and tvOS (plus visionOS). Development is streamlined via deep integration with Xcode, offering features like real-time previews and automatic synchronization between the UI and app state. For existing projects, SwiftUI offers seamless interoperability with older frameworks like UIKit and AppKit, enabling incremental adoption without a full rewrite.
  • iOS iCloud
    Apple’s native cloud infrastructure synchronizes photos, files, and device backups across the global iOS ecosystem.
    iOS iCloud serves as the connective tissue for over 1.8 billion active Apple devices. It automates essential workflows: syncing 4K video via iCloud Photos, securing end-to-end encrypted passwords in Keychain, and maintaining real-time document parity through iCloud Drive. Developers leverage CloudKit to offload server-side logic, while users benefit from Find My tracking and seamless device migrations. With storage tiers ranging from 50GB to 12TB, it provides the scalable backbone for the entire mobile user experience.
  • HTTPS
    HTTPS secures web traffic by wrapping standard HTTP in a TLS-encrypted tunnel to ensure data integrity and privacy.
    HTTPS (Hypertext Transfer Protocol Secure) is the industry standard for safe data exchange, utilizing Transport Layer Security (TLS) to encrypt communications between browsers and servers. By leveraging Port 443 and X.509 digital certificates, it prevents man-in-the-middle attacks and verifies server identity. Modern browsers like Chrome and Firefox now enforce HTTPS by default, flagging non-encrypted sites as insecure to protect sensitive user credentials and financial transactions.
  • JSON
    JSON (JavaScript Object Notation): A lightweight, language-independent data format for structured data interchange, built on universally supported key-value pairs and ordered arrays.
    JSON is the standard for modern data exchange, leveraging human-readable text to transmit structured information. Its minimal syntax uses two core types: objects (unordered collections of name:value pairs, like {"user": "alpha"}) and arrays (ordered lists of values, like [1, 2, 3]). This structure, derived from JavaScript, ensures efficient parsing and generation across all major programming languages (e.g., Python, Java, Go). We deploy JSON extensively: it is the de facto payload for RESTful APIs and the preferred format for application configuration files (e.g., package.json). The current specification (RFC 8259) ensures consistent, high-scale interoperability.