Hi all, Trying to get a systemd timer script working that would turn off the scree at a set time each day. This is the script that I am using in default.nix systemd.timers.screenoff = { timerConfig = { Unit = "screenoff.service"; OnCalendar = "*-*-* 14:35:00"; }; wantedBy = ["default.target"]; }; systemd.user.services.screenoff = { script = '' ${pkgs.bash}/bin/bash /home/"user"/screen_off.sh ''; wantedBy = ["default.target"]; }; The script contains this bit of bash #!/usr/bin/env busctl --user set-property org.gnome.Mutter.DisplayConfig /org/gnome/Mutter/DisplayConfig org.gnome.Mutter.DisplayConfig PowerSaveMode i 3 I have tired a few various formats but in this current version I see the time and service listed in systemctl list-timers --all, but typing systemctl enable screenoff.service leads to error stating that service doesn't exist. Any help would be greatly appreciated! Thank you!