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About

Rogerio de Queiroz Junior
Author
Rogerio de Queiroz Junior
Linux, open source, homelab, command-line tools and AI.

I’m a developer from São Paulo. I started freelancing in 2017, moved to back-end at Linkapi and was a Tech Lead at Samsung SDS and Kruzer. These days I’m a Software Engineer Specialist at CSU Digital, working on AI tooling and LLM apps.

I spend most of the day in the terminal. This is my setup:

rogerio@archlinux: ~
❯ fastfetch
rogerio@archlinux
-----------------
OS: Arch Linux x86_64
Shell: fish
Terminal: tmux
Theme: SP Night
Font: JetBrains Mono
Languages: TypeScript, JavaScript, Python, Go, Bash
Focus: AI · LLM · back-end · DevOps
Location: São Paulo · BR
Locale: pt_BR.UTF-8, en_US.UTF-8
❯

What I’m working on
#

rogerio@archlinux: ~
❯ systemctl --user list-units
UNITACTIVESUBDESCRIPTION
● ai-tooling.serviceactiverunningAI tools for developers
● llm-apps.serviceactiverunningRAG, agents, fine-tuning
● backend.serviceactiverunningAPIs and distributed systems
● devops.serviceactiverunningCI/CD, cloud and infra
● architecture.serviceactiverunningdesign and code review
● self-hosting.serviceactiverunninghomelab and open source
● kaggle.timeractivewaitingML experiments
❯

Off the clock
#

  • SP Night: a dark colour scheme with São Paulo as its reference. This site uses the Pico do Jaraguá flavour.
  • lazyagents: a TUI to manage the skills, sessions and usage of AI coding agents, open source since v0.3.
  • Homelab: self-hosting and open source.
  • Kaggle: ML experiments, like fine-tuning Gemma with LoRA.
  • Retro games: chasing achievements on RetroAchievements. Everything else lives on Steam.

The full story is in my resume.