{ config, pkgs, options, ... }: let
    packages = (import ../lib/packages.nix) { config = config.nixpkgs.config; };
    callPackageFile = path: (import path) packages;
in {
    imports = [
        (callPackageFile ../profiles/system/base.nix)
        (callPackageFile ../profiles/system/wpa-cli.nix)

        (callPackageFile ../profiles/environment/graphical-environment.nix)
        /*(callPackageFile ../profiles/environment/xfce4.nix)*/
        (callPackageFile ../profiles/environment/plasma5.nix)
        (callPackageFile ../profiles/environment/common-software.nix)

        (callPackageFile ../profiles/system/efi-boot.nix)
        (callPackageFile ../profiles/system/networked.nix)
        (callPackageFile ../profiles/system/printing.nix)
        (callPackageFile ../profiles/system/scanning.nix)
        (callPackageFile ../profiles/system/amd.nix)
        (callPackageFile ../profiles/system/pulseaudio.nix)
        (callPackageFile ../profiles/system/bluetooth.nix)
        (callPackageFile ../profiles/system/virtualization.nix)
        (callPackageFile ../profiles/system/service-accounting.nix)

        (callPackageFile ../profiles/software/elasticsearch.nix)
        /* (callPackageFile ../profiles/software/couchdb.nix) */

        (callPackageFile ../profiles/software/games.nix)
        /*(callPackageFile ../profiles/software/guake.nix)*/
        (callPackageFile ../profiles/software/yakuake.nix)
        (callPackageFile ../profiles/software/synergy.nix)
        (callPackageFile ../profiles/software/workrave.nix)
    ];

    nix.trustedUsers = ["sven"];

    services.xserver = {
        xrandrHeads = [
            "DFP6"
            "CRT1"
        ];

        # The below is a workaround, because SDDM inexplicably results in a masked display-manager.service on this system.
        displayManager = {
            lightdm = {
                enable = true;
            };

            sddm = {
                enable = pkgs.stdenv.lib.mkForce false;
            };
        };
    };

    networking = {
        hostName = "desktop-home";

        firewall = { # FIXME: abstract this out...
            allowedTCPPorts = [
                25565      # Minecraft
                3979       # OpenTTD
            ];

            allowedUDPPorts = [
                34197      # Factorio
                3979       # OpenTTD
            ];
        };
    };

    users.extraUsers.sven = {
        isNormalUser = true;
        uid = 1000;
        extraGroups = [
            "libvirtd"
            "dialout"
        ];
    };

    users.groups = {
        davfs2 = {};
    };

    users.extraUsers.davfs2 = {
        isNormalUser = true;
    };

    boot = {
        kernelModules = [ "tun" "virtio" "nbd" ];
        kernelParams = [ "radeon.dpm=0" ];
    };

    environment = {
        systemPackages = with packages; [
			nixpkgs.nixops
			nixpkgs.oraclejre8
            nixpkgs.devilspie2
            nixpkgs.bundix
        ];

        etc = {
            "synergy-server.conf" = {
                text = ''
                    section: screens
                        desktop:

                        laptop:

                    end

                    section: links
                        desktop:
                            left = laptop
                        laptop:
                            right = desktop
                    end

                    section: aliases
                        desktop:
                            192.168.178.60
                            desktop-home
                        laptop:
                            192.168.178.41
                            linux-o82e.site
                    end
                '';
            };
        };

        pathsToLink = [
            "/lib/rustlib/src"
        ];
    };

    hardware.pulseaudio.extraConfig = ''
        load-module module-loopback
        load-module module-combine-sink sink_name=all
    '';

    networking.extraHosts = ''
        127.0.0.1 im-project.im
    '';

    services.mpd = {
        enable = true;
    };

    /* SSHd */

	services.openssh = {
		enable = true;
		passwordAuthentication = false;
		challengeResponseAuthentication = false;
	};

    users.users.root.openssh.authorizedKeys.keys = [
		(builtins.readFile ../private/joepie91.pub)
	];

    /* Hydra */

    services.hydra = {
        enable = true;
        port = 3333;
        hydraURL = "http://localhost:3333/";
        notificationSender = "hydra@cryto.net";
        useSubstitutes = true;
        minimumDiskFree = 20;
        minimumDiskFreeEvaluator = 20;
        buildMachinesFiles = pkgs.lib.mkIf (config.nix.buildMachines == []) [];
        extraConfig = ''
            store_uri = file:///var/lib/hydra-builds
        '';
    };

    /* morepkgs */

    nix.binaryCaches = options.nix.binaryCaches.default ++ [
        "https://nix-cache.cryto.net/"
    ];

    nix.binaryCachePublicKeys = [
        "hydra.nixos.org-1:CNHJZBh9K4tP3EKF6FkkgeVYsS3ohTl+oS0Qa8bezVs="
        "nix-cache.cryto.net:+FTmODNmc5L50krRNZwx93Ti2PM6Tgqj5EVL2CqazC4="
    ];
}