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🚀 My Projects

ðŸŽŪ Lofi Valley Engine

A cozy farming game engine built for the web with a headless architecture. Features deterministic simulation, variable time control, and runs smoothly at different speeds without breaking game mechanics.

  • ðŸŒū Live Demo: dev.lofivalley.com
  • ðŸŽĻ Built with React, TypeScript, and Zustand
  • 🏗ïļ Headless architecture separating simulation from rendering
  • 🌍 Full i18n support (English & Spanish)

ðŸŽŪ Arky Addons

A lightweight and modular plugin for Godot 4.2+ that extends the editor inspector with useful and minimal UI tools.

  • ðŸŽĻ Asset Library: Godot Asset Library
  • 🛠ïļ Custom editor inspector tools
  • ðŸŽŊ Enable/disable node processing
  • 👁ïļ Show/hide nodes quickly
  • 🔄 Reset position and scale with undo/redo
  • ðŸŽĻ Clean UI with native Godot styling
  • ðŸ§Đ Fully modular and easy to extend

Perfect for: Godot developers who want to customize their workflow and build editor extensions.


⚡ Reactter

A lightweight, powerful, and reactive State Management, Dependency Injection, and Event Handler package for Dart/Flutter.

  • ðŸ“Ķ Pub.dev: reactter & flutter_reactter
  • ðŸŽŊ Fine-grained reactivity with precise control
  • ðŸŠķ Zero external dependencies
  • ✅ 100% test coverage
  • ðŸŽĻ No boilerplate, no code generation
  • ðŸ’Ŋ 100% Dart - works everywhere (Server, Web, Mobile, Desktop)

Stats: Used by developers worldwide to build reactive Flutter applications with minimal code.


🔧 Prakma

A JSX framework focused on simplicity and functional components. Perfect for developers who want React-like syntax without the complexity.

  • ðŸ“Ķ NPM: prakma
  • ðŸŽŊ Separation of logic from components
  • 🔄 Global state management
  • 🚀 Easy file structure - install and start developing
  • 💊 Supports state, async functions, Sass, and more

Philosophy: Keep it simple. Bridge the gap for developers uncomfortable with React's complexity.


ðŸŽŊ Current Focus

I'm currently working on:

  • ðŸŒū lofivalley.com - Building the core farming mechanics and expanding the game
  • 📖 Documentation - Creating comprehensive guides for all projects

ðŸ“Ŧ Connect With Me


🙏 Thank You!

Every contribution, no matter the size, makes a real difference. Your support allows me to continue creating free, open-source tools that help developers worldwide.

If you use any of my projects and find them valuable, please consider sponsoring. Together, we can build amazing things! 💜


Made with 💜 by Leo Castellanos

Featured work

  1. Leoocast/lofi-valley-engine

    A web-based farming simulation engine built with React, Zustand & TypeScript. Open Source core of Lofi Valley.

    TypeScript 18
  2. ArkkyDev/arky-addons

    Arky Addons is a modular and clean plugin for Godot 4.2+, designed to extend the editor inspector with useful and minimal UI tools.

    GDScript 3
  3. Leoocast/reactter

    A light state management for Flutter with React syntax.

    Dart 3
  4. Leoocast/Prakma

    Prakma is a framework to make applications using JSX, focusing on writing functional components.

    JavaScript 15

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