{ config, pkgs, ... }: let in { krebs.fetchWallpaper = { enable = true; unitConfig.ConditionPathExists = "!/var/run/ppp0.pid"; url = "prism/wallpaper.png"; }; systemd.services.fetchWallpaper = { after = [ "xserver.service" ]; wantedBy = [ "xserver.service" ]; }; }