I'm a product-oriented Software Engineer with a strong focus on Open Source Software (OSS/FOSS), system programming, and developer tooling.

I’m interested in

• FOSS
• Go
• Rust
• AI / ML
• Blockchain
• n8n
• Anything computer-related I consider myself a Generalizing Specialist — someone who goes deep when necessary, but keeps a broad understanding of systems, products, and users.

I have solid experience in system programming, CLI tools, automation, and backend services.

Although I love the technical side, I strongly believe that great software is a balance between engineering, usability, and product thinking.

• Open Source & FOSS
• System Programming
• Go & Rust
• CLI tools & automation
• Infrastructure & DevOps
• AI-assisted development
• Blockchain & Web3
• Workflow automation (n8n)

• NixOS Configuration
  Reproducible system setup for Dell and MacBook using NixOS.

• Dotfiles
  Personal dotfiles, continuously evolving and fully reproducible.

Below is a curated selection of my open-source projects, focused on developer productivity, automation, and system-level tooling.

• tmux-wax
  Rust CLI that connects to a remote server via SSH to collect Docker container statistics and display them in tmux or the terminal.

• GitPushUp
  Lightweight CLI tool that automates git add, commit, and push workflows.

• GitRelease
  CLI tool to automate semantic versioning and release generation.

• sync
  Data synchronization tool between Firebird and MySQL databases. Built with AI-assisted pair review.

• tmux-monitor
  tmux plugin to monitor Docker containers running on remote servers.

• tmux-docker
  Go-based CLI that monitors Docker containers and renders their status in the tmux status bar.

• tmux-spotify
  Displays the currently playing Spotify track directly in the tmux status bar.

• glink
  A personal alternative to GNU Stow, written in Go, for managing symbolic links.

• KVStoK
  A lightweight key–value store for environment variables, secrets, and system parameters.

• NGTools
  CLI wrapper around ngrok to easily manage HTTPS tunnels.

• SRM
  Safe Remove CLI tool that allows file recovery after deletion.

• NFeLoader
  Tool for loading Brazilian NF-e XML files into relational databases.

• brightmindbot
  Telegram bot designed for future integration with LLMs.

• bombot
  Open-source Telegram bot written in Go, usable for channels or private chats.

• Strong believer in Open Source as a driver of innovation
• Focus on maintainability, clarity, and simplicity
• Care deeply about developer experience and product thinking
• Prefer boring, reliable solutions — but love exploring new technologies

• 🇧🇷 Based in Brazil
• ❤️ Open-source enthusiast
• 🍞 When not coding: baking bread, photography, and dog lover
• 📫 Contact: [wborbajr at gmail dot com](mailto:wborbajr at gmail dot com)

• 💻 GitHub: https://github.com/waldirborbajr
• 💼 LinkedIn: https://www.linkedin.com/in/waldirborbajr
• ✍️ Dev.to: https://dev.to/waldirborbajr
• 🐦 X (Twitter): https://x.com/waldirborbajr
• 🎥 Twitch: https://www.twitch.tv/waldirborbajr

If you enjoy my work or find it useful:

• https://www.buymeacoffee.com/waldirborbajr
• https://ko-fi.com/waldirborbajr