Redshift

Redshift overlays a filter overtop of your screen to make the colour temperature warmer at night.

Documentation

man redshift

https://man.archlinux.org/man/community/redshift/redshift.1.en

Locations

~/.config/redshift/

Install

pacman -S redshift  # arch

Configuration

# ~/.config/redshift/redshift.conf

[redshift]
adjustment-method=randr
location-provider=manual

[manual]
# see https://www.geonames.org/
#   + == north/east
#   - == south/west
# north
lat=44
lon=-79

Usage

Service

systemctl --user enable redshift-gtk.service
systemctl --user start redshift-gtk.service

Cli