problem

I just booted up a new version of Ubuntu and would like to set up redshift so I'm not kept up by blue light all night.

solution

In Ubuntu 18+, you don't event need to use a separate Redshift package - there's a built-in Night Light function that does Redshift for you.

To use it:

• Go to Settings > Displays
• Choose the Night Light section / tab
• Toggle it on and configure

Easy as that!