Dexed FM synthesizer similar to 8x DX7 (TX816/TX802) running on a bare metal Raspberry Pi (without a Linux kernel or operating system)

An ESP32 and 2.9", 4.2" or 7.5" ePaper Display reads Weather Underground data via their API and then displays the weather

Fast SPI graphics library for ST7567 128x64 LCD

A Gaggia Classic control project using microcontrollers.

Terraform provider for Segment, using the Public API

A music theory library for Swift OS X and iOS apps.

The Cloud Cost Handbook is a free, open-source, community-supported set of guides meant to help explain often-times complex pricing of public cloud infrastructure and service providers in plain eng…

Simulating shitty network connections so you can build better systems.

The Go programming language

Chisel is a collection of LLDB commands to assist debugging iOS apps.

A very simple shell written with colleagues during college. The code and documentation is basically in portuguese...

A syntax highlight and autoclose for tubaina markup language.

Rock in Sampa é um agregador de sites de banda de rock, exibindo os próximos shows da noite paulistana

An IRC bot that sure wants to take over the world.

Exemplos que eu apresentei no encontro do GURU-SP em Junho de 2011.

Akihabara framework

Experiments using Processing

Minimalist validation BDD for ActiveModel specs

A simple Sinatra demo demonstrating how you can use the outpost gem.

⚡ A Scope & Engine based, clean, powerful, customizable and sophisticated paginator for Ruby webapps

Monitor your service's availability through a simple, clean DSL

A generic web based tool to display the status and health of any kind of internet service

htty is the HTTP TTY, a console application for interacting with web servers.

[DEPRECATED] Realtime server push with node.js, WebSockets and Comet

My Blog

Code coverage for Ruby with a powerful configuration library and automatic merging of coverage across test suites