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๐Ÿš€ My Projects

๐ŸŽฎ 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.

  • ๐ŸŒพ Live Demo: dev.lofivalley.com
  • ๐ŸŽจ Built with React, TypeScript, and Zustand
  • ๐Ÿ—๏ธ Headless architecture separating simulation from rendering
  • ๐ŸŒ Full i18n support (English & Spanish)

๐ŸŽฎ Arky Addons

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

  • ๐ŸŽจ Asset Library: Godot Asset Library
  • ๐Ÿ› ๏ธ Custom editor inspector tools
  • ๐ŸŽฏ Enable/disable node processing
  • ๐Ÿ‘๏ธ Show/hide nodes quickly
  • ๐Ÿ”„ Reset position and scale with undo/redo
  • ๐ŸŽจ Clean UI with native Godot styling
  • ๐Ÿงฉ Fully modular and easy to extend

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


โšก Reactter

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

  • ๐Ÿ“ฆ Pub.dev: reactter & flutter_reactter
  • ๐ŸŽฏ Fine-grained reactivity with precise control
  • ๐Ÿชถ Zero external dependencies
  • โœ… 100% test coverage
  • ๐ŸŽจ No boilerplate, no code generation
  • ๐Ÿ’ฏ 100% Dart - works everywhere (Server, Web, Mobile, Desktop)

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


๐Ÿ”ง Prakma

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

  • ๐Ÿ“ฆ NPM: prakma
  • ๐ŸŽฏ Separation of logic from components
  • ๐Ÿ”„ Global state management
  • ๐Ÿš€ Easy file structure - install and start developing
  • ๐Ÿ’ช Supports state, async functions, Sass, and more

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


๐ŸŽฏ Current Focus

I'm currently working on:

  • ๐ŸŒพ lofivalley.com - Building the core farming mechanics and expanding the game
  • ๐Ÿ“– Documentation - Creating comprehensive guides for all projects

๐Ÿ“ซ Connect With Me


๐Ÿ™ 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! ๐Ÿ’œ


Made with ๐Ÿ’œ 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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