use niv and add device elias-e525

nix/os/devices/elias-e525/system.nix

@@ -0,0 +1,57 @@
+{ pkgs
+, lib
+, config
+, ... }:
+
+
+let
+
+in
+{
+  # TASK: new device
+  networking.hostName = "elias-e525"; # Define your hostname.
+
+  networking.firewall.enable = true;
+  networking.firewall.allowedTCPPorts = [
+    # iperf3
+    5201
+  ];
+
+  networking.firewall.logRefusedConnections = false;
+  networking.usePredictableInterfaceNames = false;
+
+  services.printing = {
+    enable = true;
+    drivers = with pkgs; [
+      mfcl3770cdw.driver
+      mfcl3770cdw.cupswrapper
+    ];
+  };
+
+  services.fprintd.enable = true;
+  security.pam.services = {
+    login.fprintAuth = true;
+    sudo.fprintAuth = true;
+  };
+
+  services = {
+    xserver = {
+      layout = lib.mkForce "de";
+      xkbVariant = lib.mkForce "";
+      xkbOptions = lib.mkForce "";
+      displayManager.autoLogin.enable = lib.mkForce false;
+      desktopManager.gnome.enable = true;
+    };
+
+    # dbus.packages = [ pkgs.gnome3.dconf ];
+    # udev.packages = [ pkgs.gnome3.gnome-settings-daemon ];
+  };
+
+  security.pki.certificateFiles = [
+    "${pkgs.cacert}/etc/ssl/certs/ca-bundle.crt"
+  ];
+
+  services.xserver.videoDrivers = [ "modesetting" ];
+
+  boot.kernelPackages = lib.mkForce pkgs.linuxPackages_latest;
+}