This reminds you to look every 20 mins away from your computer screen
To reduce your risk of tiring your eyes by constantly focusing on your screen, look away from your computer at least every 20 minutes and gaze at a distant object (at least 20 feet away) for at least 20 seconds. Looking far away relaxes the focusing muscle inside the eye to reduce fatigue.
:~$ g++ main.cpp -o main.out -lstdc++fs `pkg-config --cflags --libs libnotify`
:~$ ./main.out