Infrastructure & Linux
Reliable foundations, thoughtful architecture and open systems.
Marcus Semblano / Senior System Engineer
Building reliable systems.
Exploring what’s next.
Brazilian roots. Based in Germany. I work across Linux, infrastructure and automation—with a curiosity for open source, AI and the world beyond the terminal.
01 / Areas of focus
Curiosity, with a systems mindset.
DevOps & automation
Reducing toil and making complex operations repeatable.
AI & developer tools
Exploring useful applications for agents and emerging tools.
02 / Open source
Selected projects
wifi-password-generator
Offline Wi-Fi password generator with English and Brazilian Portuguese passphrases.
View repository : wifi-password-generator (opens in a new tab)gaze-focus
Look at a window, double-blink, type there — webcam gaze tracking that switches X11 window focus (no eye-tracker hardware)
View repository : gaze-focus (opens in a new tab)03 / Beyond the terminal