{ pkgs, config, ... }: { systemd.services.screenlock = { before = [ "sleep.target" ]; wantedBy = [ "sleep.target" ]; environment = { DISPLAY = ":0"; }; serviceConfig = { SyslogIdentifier = "screenlock"; ExecStart = "${pkgs.i3lock}/bin/i3lock -i /var/lib/wallpaper/wallpaper -f"; Type = "forking"; User = "lass"; }; }; }