Debian is a pain! I just tried installing it on a laptop. During installation it points out it can't find a wifi driver and do I have it to hand? I didn't and I don't know where to find it. It says I can use ethernet, but the ethernet wasn't close to me at the time and laptop's battery was shot so I couldn't move. I proceed without internet. I google how to install non-free firmware after the fact, and find that there is an app in the repository. Once the install is done, I shut it down and move it to a room with ethernet. We boot up, plug it in and get internet! But for some reason I am not attached to any software repositories apart from those on an install CD/DVD. I don't know what has happened, but I assume that my lack of internet during install meant I don't have apt sources properly configured. I considered googling how to add these, but instead, I said goodbye to the early 2000s gnome 2 theme, shut it down and tried another debian-derived distro that has all the advantages of debian, a beautiful modern theme, and I don't spend hours googling things I don't know.