Integrate hummelberg desktop configuration

host/hummelberg/default.nix

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+{ config, pkgs, ... }: {
+
+  imports = [
+    ./filesystems.nix
+    ./networking.nix
+    ./printing.nix
+    #./backup.nix #TODO: Extract applications from desktop role
+
+    ../../hardware/dell-precision-3530.nix
+
+    ../../defaults/base
+    ../../defaults/cifs-auth-fix
+    ../../defaults/desktop
+    ../../defaults/development-tools
+    ../../defaults/games
+    ../../defaults/printing
+  ];
+
+  # Set your time zone.
+  time.timeZone = "Europe/Amsterdam";
+
+  # This value determines the NixOS release from which the default
+  # settings for stateful data, like file locations and database versions
+  # on your system were taken. It‘s perfectly fine and recommended to leave
+  # this value at the release version of the first install of this system.
+  # Before changing this value read the documentation for this option
+  # (e.g. man configuration.nix or on https://nixos.org/nixos/options.html).
+  system.stateVersion = "20.03"; # Did you read the comment?
+
+}

host/hummelberg/filesystems.nix

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+{ config, pkgs, lib, ... }:
+let
+  networkShares = let
+    hsr_options = [
+      "defaults"
+      "noauto"
+      #"iocharset=utf8"
+      "soft"
+      "user=fhauser"
+      "domain=hsr.ch"
+      "uid=1000"
+      "gid=1000"
+    ];
+    hsr_share = share_name:
+      { domain ? "hsr.ch/root", path ? share_name, extra_options ? [ ] }:
+      lib.nameValuePair "/mnt/hsr/${share_name}" {
+        device = "//${domain}/${path}";
+        fsType = "cifs";
+        options = hsr_options ++ extra_options;
+        noCheck = true;
+      };
+  in lib.mapAttrs' hsr_share {
+    "skripte".path = "alg/skripte";
+    "scratch".path = "alg/scratch";
+    "fhauser".domain = "c101.hsr.ch";
+    #"fabian.hauser".domain = "svm-c113.ost.ch"; # User!
+    "afe" = { };
+    "auw" = { };
+    "ebooks" = {
+      path = "alg/ebooks";
+      extra_options = [ "ro" ];
+    };
+  };
+
+in {
+  boot.initrd.luks.devices = {
+    "root".device = "/dev/disk/by-uuid/28d2914f-c053-40a8-ad90-f2743190c772";
+    "swap".device = "/dev/disk/by-uuid/ed89158d-4460-4012-86d7-f8761127371c";
+  };
+
+  fileSystems = {
+    "/" = {
+      device = "/dev/disk/by-uuid/6396b6eb-a7e6-430c-8c97-970404f88b35";
+      fsType = "btrfs";
+      options = [ "subvol=nixos" ];
+    };
+    "/home" = {
+      device = "/dev/disk/by-uuid/6396b6eb-a7e6-430c-8c97-970404f88b35";
+      fsType = "btrfs";
+      options = [ "subvol=home" ];
+    };
+    "/boot" = {
+      device = "/dev/disk/by-uuid/E86E-3C6C";
+      fsType = "vfat";
+    };
+  } // networkShares;
+
+  swapDevices = [{ device = "/dev/mapper/swap"; }];
+
+  # Use the systemd-boot EFI boot loader.
+  boot.loader.systemd-boot.enable = true;
+  boot.loader.efi.canTouchEfiVariables = true;
+
+}

host/hummelberg/networking.nix

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+{ config, pkgs, ... }:
+
+{
+
+  networking = {
+    networkmanager.enable = true;
+    useDHCP = false;
+    #wireless.enable = true;  # Enables wireless support via wpa_supplicant.
+    hostName = "hummelberg";
+  };
+
+  # Configure network proxy if necessary
+  # networking.proxy.default = "http://user:password@proxy:port/";
+  # networking.proxy.noProxy = "127.0.0.1,localhost,internal.domain";
+}

host/hummelberg/printing.nix

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+{ config, pkgs, ... }:
+
+{
+  hardware.printers.ensureDefaultPrinter = "hsr-mfp-8261";
+  hardware.printers.ensurePrinters = [{
+    name = "hsr-mfp-8261";
+    deviceUri = "smb://hsr.ch/printsrv-d.hsr.ch/d8261-a4mfp";
+    location = "HSR 8.261";
+    model = "HP/hp-color_laserjet_mfp_m577-ps.ppd.gz";
+    ppdOptions = {
+      Duplex = "DuplexNoTumble";
+      PageSize = "A4";
+      auth-info-required = "username,password";
+    };
+  }];
+}