Grimoire-Command.es

GNU+Linux command memo

Protect your eyes from screen's blue light

Protéger vos yeux de la lumière bleue des écrans

apt install redshift-gtk
man redshift

You need to set a config file with your GPS coord and red levels for day and night:

~/.config/redshift.conf

; Global settings
[redshift]
temp-day=3500
temp-night=2500
transition=1
location-provider=manual
verbose=yes

; The location provider and adjustment methode settings are in their own sections.
[manual]
lat=48.860 (1)
lon=2.346 (1)
1 OpenStreetMap.org is a good place to get GPS coordinates of your position.