redshift in sway arch linux

gistfile1.txt

To run redshift in sway:

1. Install redshift-wlr-gamma-control

2. Edit the redshift.service and add:
   a. Environment=XDG_RUNTIME_DIR=$XDG_RUNTIME_DIR_ACTUALLY
   b. Environment=WAYLAND_DISPLAY=$WAYLAND_DISPLAY_ACTUAL_VALUE
   
   Since the XDG_RUNTIME_DIR, might not be set you can set it using:
   export XDG_RUNTIME_DIR=/run/user/$ID
   
   The $ID will be expanded by the uid of your user.
   
3. Enable and start the systemd unit.
   To install the unit which might not be in /usr/lib/systemd/systemd but in /usr/lib/systemd/user, you need to use the absolute path like:
   sudo systemctl install /usr/lib/systemd/user/redshift.service
   
   That's it!