I was a happy f.lux user for several years and suddenly had a new (Xubuntu) machine which seemed to override it's settings. Redshift is "built-in" to Xubuntu a

I was a happy f.lux user for several years and suddenly had a new (Xubuntu) machine which seemed to override it's settings. Redshift is "built-in" to Xubuntu and I find it to be equivalent for my needs.