
It's an easy install, and it will help a lot with staying up late and staring at your computer screen. Just have to fiddle a bit with the settings until you find a comfortable level of warmth which isn't too bothersome for your eyes and that doesn't spoil whatever you're looking at.
Just go to https://justgetflux.com/ and press the big blue download button. Don't worry, there ain't no viruses nor malware included. It will take you to another page and prompt you to save your setup. On that page you have most of the important data you need to use the program properly, so I won't really elaborate on what you have to do. Just save the setup, install it, and there you go. Just set some things up like your location and when you wake up to make it work better for you. That should be everything I have to say for now, so see ya. -Duke