Comment by imiric

This has always been possible, even if you weren't a programmer. You just needed to have the desire to customize your computing environment, and the time and patience to do it.

There is so much software out there, written by people who wanted to solve their particular problem, just like you. Chances are that some of it will fit your needs, and, if the software is flexible enough, will allow you to customize it to make that fit even better.

This is why the Unix philosophy is so powerful. Small independent programs that do one thing well, which can be configured and composed in practically infinite number of ways. I don't need to write a file search or sorting program, nor does the file search program need to implement sorting. But as a user, I can compose both programs in a way to get a sorted list of files by any criteria I need. This is possible without either program being aware of the other, and I can compose programs written decades ago with ones written today.

You can extend this to other parts of your system as well. Instead of using a desktop environment like GNOME, try using a program that just manages windows. Then pick another program for launching applications. And so on. This is certainly more work than the alternative, but at the end of the day, you feel like you are in control of your computer, instead of the other way around.