VelsTech Software

Operating systems, the terminal, and everyday tools – a natural learning path from picking your first Linux distro to feeling at home on the command line.

Start here

Pick your OS

New to this? Follow the guided path →

Linux for beginners

Picking a distro, installing it, and surviving your first week without breaking anything.

Start here →

Windows vs Linux

An honest comparison of the two for daily use, gaming, and development work.

Compare →

Omarchy: the opinionated Linux distro

The Arch-based distro everyone's talking about – what it is and whether to try it.

The terminal

Command line skills

Essential terminal commands

Navigation, files, permissions, and package management – the commands you'll use daily.

Learn the commands →

Linux command cheat sheet

A free, printable reference – every command you need on one page.

Get the cheat sheet →

chmod Calculator

Toggle permissions and get the numeric mode (755) and the command to run.

Open tool →

Go deeper

Installs & troubleshooting

Installing ROCm on Ubuntu

Step-by-step ROCm 7.x on Ubuntu for AMD Radeon GPUs – from apt to rocminfo.

Tutorial →

PyTorch with ROCm on Radeon

Set up PyTorch with GPU support on Ubuntu for Radeon cards, verified end to end.

Tutorial →

All tutorials

Every step-by-step guide in one place – build, set up, and learn.

Browse tutorials →

Coming soon

On the roadmap

Dual-boot Windows + Linux

How to run both safely on one machine.

Linux file system explained

What /home, /etc, and /var actually are.

Package managers compared

apt, dnf, pacman, and flatpak – which and when.