split up config into base and specialized

modules/hosts/base/configuration.nix

@@ -0,0 +1,67 @@
+{
+  config,
+  inputs,
+  pkgs,
+}:
+{
+  boot.loader.systemd-boot.enable = true;
+  boot.loader.efi.canTouchEfiVariables = true;
+  networking.networkmanager.enable = true;
+  boot.kernelPackages = pkgs.linuxPackages_latest;
+  nix.settings.experimental-features = [
+    "nix-command"
+    "flakes"
+  ];
+  hardware.graphics.enable = true;
+  time.timeZone = "Europe/Berlin";
+  i18n.defaultLocale = "en_US.UTF-8";
+  services.desktopManager.gnome.enable = true;
+  services.displayManager.gdm.enable = true;
+  programs.niri = {
+    enable = true;
+  };
+  services.xserver.xkb.layout = "us";
+  services.pipewire = {
+    enable = true;
+    pulse.enable = true;
+  };
+  nixpkgs.config.allowUnfree = true;
+
+  users.users.lucy = {
+    isNormalUser = true;
+    extraGroups = [ "wheel" ];
+    packages = [
+      inputs.helium.packages.${pkgs.system}.default
+    ];
+  };
+
+  environment.systemPackages = with pkgs; [
+    fastfetch
+    wget
+    git
+    clang
+    xournalpp
+  ];
+  programs.xppen = {
+    enable = true;
+    package = pkgs.xppen_4.overrideAttrs (old: {
+      src = pkgs.fetchurl {
+        url = "https://download01.xp-pen.com/file/2026/04/XPPenLinux4.0.15-260422.tar.gz";
+        hash = "sha256-Jady+pbqnzmVMuM0Io4/aE5B7dqNlDKPsnRj/Fbln6U=";
+      };
+      buildInputs = (old.buildInputs or [ ]) ++ [
+        pkgs.libXtst
+        pkgs.libXrandr
+      ];
+    });
+  };
+  fonts.packages = [
+    config.theming.fontPackage
+    pkgs.noto-fonts
+    pkgs.noto-fonts-cjk-sans
+    pkgs.noto-fonts-color-emoji
+    pkgs.nerd-fonts.symbols-only
+  ];
+  system.stateVersion = "26.05";
+
+}