🔧 Currently on a sabbatical, focused on personal projects and building something innovative. Still contributing to the open source community. Open source dev, blockchain enthusiast, and whenever I can, I'm climbing, mountain biking downhill or lifting things. 🧗🚵🏋️
softgre
 🌐 Dynamic GRE Encapsulation, (a.k.a SoftGRE) 
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zapbot
🇧🇷🤖 Bot para WhatsApp escrito em Node.js que roda em cima de uma sessão real do WhatsApp Web 
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getright
📥 The classic GetRight download manager, straight from the good old Windows days and brought into the modern era! Just for fun! 
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libclosedcaption
🔌 C library for extracting closed captions from the 🇧🇷 Brazilian ISDB-Tb/SBTVD standard (ARIB STD-B24 / ABNT NBR 15606-1) from subtitle PES packets in an MPEG transport stream (MPEG-TS).
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php-dhcpdleases
🔌 PHP parser for ISC DHCP dhcpd.leases files. Reads the leases, then filters, sorts and de-duplicates them, returning an array or JSON. 
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freeradius-server
 The FreeRADIUS Server. RADIUS, DHCP, and VMPS.
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dotfiles
🛠️ My such .dot settings base for my 🐧Linux and Mac stations! 
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libinjection
SQL / SQLI tokenizer parser analyzer
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libkqueue
kqueue(2) compatibility library
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mod_auth_radius
The FreeRADIUS Apache module for RADIUS authentication
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BitcoinChecker
DataModule for Bitcoin Checker android app 
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nginx-backtrace-ng
A Nginx module to dump backtrace when a worker process exits abnormally
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isc-dhp-relay
this is upstream of "dhcp-4.3.1/relay" from "ftp://ftp.isc.org/isc/dhcp/4.3.1/dhcp-4.3.1.tar.gz" with support for dhcp option82 using circuit_id/remote_id
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- Leadership: technical lead, software development lead, team coordinator and principal engineer
- Networking: RADIUS, DHCP, GRE, IPv6, 802.1X/EAP, captive portals
- Embedded: Linux (OpenWrt, uClinux), ARM/MIPS, PIC, Raspberry Pi
- Digital TV (DTV): ISDB standards, hardware/software and codecs
- C/C++ libs and modules (nginx, Apache, kqueue, parsers)
- Security: SQL injection detection, authentication, cryptography
- DevOps: Docker, Vagrant, AWS, vSphere
- Automation and tools: Node.js, PHP, Python, Lua, Perl, Shell
- AI: LLMs, agents and AI-assisted dev (Claude Code, Codex)
- Open source: FreeRADIUS today, GNOME in the past (GTK/GLib, gtk-vnc), plus many other projects on my GitHub
- Off-keyboard: climbing 🧗, downhill MTB 🚵, lifting 🏋️ — from Rio de Janeiro 🇧🇷
In the tech world since 1996. The full story is on my LinkedIn.
I work on a number of projects. I contribute to projects I don't use, in addition to the ones I do. Sometimes I'll make a small contribution because I'm considering using a project.
I keep lots of forks of other people's repositories. In general, you probably don't want to ⭐ Star or 🍴 Fork most of them.
By the way, I also speak Portuguese! 🇧🇷