feat(tahina): init as guest laptop

systems/tahina/configuration.nix

@@ -1,5 +1,4 @@
 {
-  lib,
   config,
   pkgs,
   ...
@@ -8,22 +7,64 @@
 in {
   imports = [
     ./hardware-configuration.nix
-    <niveum/configs/monitoring.nix>
-    <niveum/configs/nix.nix>
-    <niveum/configs/save-space.nix>
+    <niveum/configs/battery.nix>
     <niveum/configs/spacetime.nix>
-    <niveum/configs/sshd.nix>
     <niveum/modules/retiolum.nix>
+    <niveum/configs/sshd.nix>
+    {
+      console.keyMap = "de";
+      i18n.defaultLocale = "de_DE.UTF-8";
+      services.xserver = {
+        layout = "de";
+        libinput.enable = true;
+      };
+    }
+    {
+      nix.nixPath = ["/var/src"];
+    }
   ];
 
-  nix.nixPath = ["/var/src"];
-
-  networking = {
-    hostName = "tahina";
-    retiolum = retiolumAddresses.tahina;
+  users.users.xenos = {
+    name = "xenos";
+    password = "xenos";
+    isNormalUser = true;
+    extraGroups = ["networkmanager"];
   };
 
-  system.stateVersion = "22.05";
+  services.xserver = {
+    enable = true;
+    desktopManager.pantheon.enable = true;
+    displayManager = {
+      lightdm = {
+        enable = true;
+        greeters.pantheon.enable = true;
+      };
+      autoLogin = {
+        enable = true;
+        user = "xenos";
+      };
+    };
+  };
+  boot.plymouth.enable = true;
 
-  environment.systemPackages = [pkgs.vim pkgs.git pkgs.tmux pkgs.python3];
+  environment.systemPackages = [
+    pkgs.libreoffice
+    pkgs.gimp
+    pkgs.inkscape
+    pkgs.firefox
+    pkgs.audacity
+    pkgs.pidgin
+  ];
+
+  networking = {
+    useDHCP = false;
+    interfaces = {
+      enp0s25.useDHCP = true;
+      wlo1.useDHCP = true;
+    };
+    retiolum = retiolumAddresses.tahina;
+    hostName = "tahina";
+  };
+
+  system.stateVersion = "21.11";
 }