Various tweaks

- Untested: make dongle gateways device specific
- try to fix network config when usbc-dongle is not avail
- disable broken autoLogin

Signed-off-by: Tristan Druyen <tristan@vault81.de>

configuration.nix

@@ -78,8 +78,18 @@
     layout = "us";
     xkbVariant = "alt-intl";
 
-    displayManager.sddm.enable = true;
     desktopManager.plasma5.enable = true;
+
+    # Sddm
+    displayManager = {
+      sddm.enable = true;
+      defaultSession = "plasmawayland";
+
+      # autoLogin = {
+      #  enable = true;
+      #  user = "tristand";
+      # };
+    };
   };
 
   services.printing.enable = true;
@@ -97,13 +107,6 @@
     jack.enable = true;
   };
 
-  # Define a user account. Don't forget to set a password with ‘passwd’.
-
-  # Enable automatic login for the user.
-  services.xserver.displayManager.defaultSession = "plasmawayland";
-  services.xserver.displayManager.autoLogin.enable = true;
-  services.xserver.displayManager.autoLogin.user = "tristand";
-
   environment.sessionVariables = {
     EDITOR = "nvim";
     MOZ_USE_XINPUT2 = "1";

hardware.nix

@@ -40,12 +40,26 @@
       };
     };
 
-    defaultGateway = {
-      address = "192.168.0.5";
-      interface = "enp5s0f4u1u1c2";
-    };
+    # TODO delete if network specific gateway is validated to work
+    # defaultGateway = {
+    #   address = "192.168.0.5";
+    #   interface = "enp5s0f4u1u1c2";
+    # };
   };
 
+  # TODO validate his works
+  systemd.network.networks.enp5s0f4u1u1c2.gateway = "192.168.0.5";
+
+  # This manually configures the automatically created network-adresses service to be more flexible
+  # regarding booting without the the device being available on boot
+  # It prevents slow timeouts & errors on boot while preserving Plug & Play ability
+  systemd.services.network-addresses-enp5s0f4u1u1c2.unitConfig.ConditionPathExists = "/sys/class/net/enp5s0f4u1u1c2";
+  systemd.services.network-addresses-enp5s0f4u1u1c2.unitConfig.BindsTo = lib.mkForce null;
+  services.udev.extraRules = ''
+    ACTION=="add", KERNEL=="enp5s0f4u1u1c2", TAG+="systemd", ENV{SYSTEMD_WANTS}="network-addresses-enp5s0f4u1u1c2.service"
+    ACTION=="remove", KERNEL=="enp5s0f4u1u1c2", RUN+="${pkgs.systemd}/bin/systemctl stop network-addresses-enp5s0f4u1u1c2.service"
+  '';
+
   nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
 
   hardware = {