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Working in Bemol Digital
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CriandoGames/README.md

Hi, I'm Carlos Castro πŸ‘‹

Typing SVG

GitHub Streak


πŸ§‘β€πŸ’» About Me

  • πŸ‡§πŸ‡· 34 years old, based in Rio de Janeiro, Brazil
  • πŸ’Ό Back-End Software Engineer, specialized in .NET and scalable
  • πŸ₯‹ Jiu-jitsu practitioner β€” and building software for the jiu-jitsu world
  • πŸŽ“ Systems Information graduate (EstΓ‘cio de SΓ‘) Β· Postgrad in Mobile Development Β· Currently pursuing a 2nd Postgrad in Software Architecture
  • πŸ“š Always learning β€” currently deepening Azure, distributed systems, and software architecture patterns

πŸš€ What I'm Building

Tatame Master β€” a SaaS platform for martial arts academy management. Handles student attendance via facial recognition, automated recurring billing, belt/graduation tracking, and WhatsApp notifications β€” built solo, from architecture to production.


πŸ› οΈ Tech Stack

Back-End

.NET C# NodeJS TypeScript

Mobile

Flutter Dart

Databases

Postgres MySQL MongoDB

Cloud & DevOps

Azure AWS Azure DevOps Docker

Tools

Git GitHub


πŸ“Š GitHub Stats


🌐 Connect with Me

LinkedIn Β  Gmail Β  YouTube

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  1. all_validations_br all_validations_br Public

    Dart/Flutter library for Brazilian validations (CPF, CNPJ, PIX, CEP and more), utilities (JWT, UUID, currency, dates) and authenticated encryption (ChaCha20-Poly1305). No external dependencies.

    Dart 13 5

  2. all_box all_box Public

    Synchronous, lightweight key-value storage for Flutter with crash-safe writes (write-ahead + atomic rename) and a pure-Flutter reactive layer.

    Dart 2

  3. all_image_compress all_image_compress Public

    Dart 2

  4. all_observer all_observer Public

    Reactive state for Flutter with zero dependencies β€” final count = 0.obs; + Observer(...) and you're done.

    Dart 1

  5. all_box_devtool all_box_devtool Public

    DevTools extension for all_box: inspect and edit AllBox containers

    JavaScript 1

  6. all_observer_lint all_observer_lint Public

    Dart 1