Hi, I'm a bit lost, I'd like to learn some more useful things in programming besides building a desktop application, I'd like to learn something more useful like those programs that solve more complex problems on the computer or manipulate elements of it, like the app unlock that basically manages to delete any app from your pc regardless of permissions restriction, the live wallpaper that you get by a gif running in the background of your pc or the dependencies wallker that screens a program and tells you which libraries it uses, which area of programming you should study to learn this kind of thing? is there any topic?
