Playgrounds

Browser-based Linux terminals — no install needed. Practice alongside any lesson.

Ubuntu

A friendly Debian-based terminal for everyday practice and first steps.

https://terminal.designbureau.tech/ubuntu/

Alpine

A tiny musl-based distro — great for containers, minimalism, and speed.

https://terminal.designbureau.tech/alpine/

Kali

A Debian-based security distro with penetration-testing tools.

https://terminal.designbureau.tech/kali/