I write a diary digitally and keep it on my PC. Because school told me to come up with a project on my own, I decided to write a program in C++ to make my life a little easier with generating new files for my diary. I intentionally went with a fairly simple project because I had taken a break for two months or so, so I was quite out of my routine.
clang++_-O3.sh works exclusively on Linux based systems, if I'm not mistaken. In order to compile the code yourself, you will need to have the fmt library installed. Don't ask me how to do that - it seems I've gotten that simply by installing the clang suite via Pacman through the Arch-Linux repos.