With the current climate I have decided to get serious about transitioning my life to completely open source materials. I wanted to ask if anyone had any modern sources for learning Unix, scripting, encryption, or cyber security? I have been running scripts and installing distros for a while. I want to learn how to build and run my own specific tools. I want to know how it works so, I figured I’d be in the right place here. Preferably something I can read, or interact with offline. Could be written, video, books, or anything. I want to learn as much as possible, as fast as possible.