initial nix setum with Nina :3

configuration.nix

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+{ config, pkgs, ... }:
+
+{
+  nix.settings.experimental-features = [
+    "nix-command"
+    "flakes"
+  ];
+
+  imports =
+    [ # Include the results of the hardware scan.
+      ./vm_hardware-configuration.nix
+    ];
+
+  # Bootloader.
+  boot.loader.grub.enable = true;
+  boot.loader.grub.device = "/dev/sda";
+  boot.loader.grub.useOSProber = true;
+
+  networking.hostName = "nixpad"; # Define your hostname.
+
+  # Enable networking
+  networking.networkmanager.enable = true;
+
+  # Set your time zone.
+  time.timeZone = "Europe/Berlin";
+
+  # Select internationalisation properties.
+  i18n.defaultLocale = "en_US.UTF-8";
+
+  i18n.extraLocaleSettings = {
+    LC_ADDRESS = "de_DE.UTF-8";
+    LC_IDENTIFICATION = "de_DE.UTF-8";
+    LC_MEASUREMENT = "de_DE.UTF-8";
+    LC_MONETARY = "de_DE.UTF-8";
+    LC_NAME = "de_DE.UTF-8";
+    LC_NUMERIC = "de_DE.UTF-8";
+    LC_PAPER = "de_DE.UTF-8";
+    LC_TELEPHONE = "de_DE.UTF-8";
+    LC_TIME = "de_DE.UTF-8";
+  };
+
+  # Configure keymap in X11
+  services.xserver = {
+    layout = "de";
+    xkbVariant = "";
+    enable = true;
+
+    displayManager = {
+        defaultSession = "none+i3";
+    };
+
+    windowManager.i3 = {
+        enable = true;
+        package = pkgs.i3-gaps;
+        extraPackages = with pkgs; [
+            dmenu
+        ];
+    };
+  };
+
+
+  # Configure console keymap
+  console.keyMap = "de";
+
+  # Define a user account. Don't forget to set a password with ‘passwd’.
+  users.users.clemens = {
+    isNormalUser = true;
+    description = "clemens";
+    initialPassword = "123456";
+    extraGroups = [ "networkmanager" "wheel" ];
+    packages = with pkgs; [];
+  };
+
+  # home manager
+  home-manager.useGlobalPkgs = true;
+  home-manager.useUserPackages = true;
+  home-manager.users.clemens = import ./home.nix;
+
+  # Allow unfree packages
+  nixpkgs.config.allowUnfree = true;
+
+  # systemwide packages
+  environment.systemPackages = with pkgs; [
+    vim
+    wget
+  ];
+
+  # 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 = "24.05"; # Did you read the comment?
+}

flake.nix

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+{
+  description = "Flake to manage local systems";
+
+  inputs = {
+    nixpkgs.url = "github:nixos/nixpkgs?ref=nixos-unstable";
+    home-manager.url = "github:nix-community/home-manager";
+    home-manager.inputs.nixpkgs.follows = "nixpkgs";
+  };
+
+  outputs = inputs@{ nixpkgs, home-manager, ... }: {
+    nixosConfigurations = {
+      laptop = nixpkgs.lib.nixosSystem {
+        system = "x86_64-linux";
+        modules = [
+          ./configuration.nix
+          home-manager.nixosModules.home-manager
+        ];
+      };
+    };
+  };
+}

git.nix

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+{pkgs, ...}: {
+  programs.git = {
+    enable = true;
+    userName  = "CDaut";
+    userEmail = "git@cdaut.de";
+  };
+}

home.nix

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+{ config, pkgs, ... }:
+let
+  tex = (pkgs.texlive.combine {
+    inherit (pkgs.texlive) scheme-full;
+  });
+in
+{
+  # Home Manager needs a bit of information about you and the paths it should
+  # manage.
+  home.username = "clemens";
+  home.homeDirectory = "/home/clemens";
+
+  # This value determines the Home Manager release that your configuration is
+  # compatible with. This helps avoid breakage when a new Home Manager release
+  # introduces backwards incompatible changes.
+  #
+  # You should not change this value, even if you update Home Manager. If you do
+  # want to update the value, then make sure to first check the Home Manager
+  # release notes.
+  home.stateVersion = "24.05"; # Please read the comment before changing.
+
+  imports = [
+    ./git.nix
+    ./vscode.nix
+  ];
+
+  # The home.packages option allows you to install Nix packages into your
+  # environment.
+  home.packages = with pkgs; [
+    zsh
+    alacritty
+    polybar
+    firefox
+    tex
+    jetbrains.idea-ultimate
+  ];
+
+  # dotfiles
+  home.file = {
+
+  };
+
+  # envars
+  home.sessionVariables = {
+     EDITOR = "vim";
+  };
+}

vm_hardware-configuration.nix

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+# Do not modify this file!  It was generated by ‘nixos-generate-config’
+# and may be overwritten by future invocations.  Please make changes
+# to /etc/nixos/configuration.nix instead.
+{ config, lib, pkgs, modulesPath, ... }:
+
+{
+  imports = [ ];
+
+  boot.initrd.availableKernelModules = [ "ata_piix" "ohci_pci" "ehci_pci" "sd_mod" "sr_mod" ];
+  boot.initrd.kernelModules = [ ];
+  boot.kernelModules = [ "kvm-intel" ];
+  boot.extraModulePackages = [ ];
+
+  fileSystems."/" =
+    { device = "/dev/disk/by-uuid/1874c90c-9363-4f50-a82d-1883862123c8";
+      fsType = "ext4";
+    };
+
+  swapDevices = [ ];
+
+  # Enables DHCP on each ethernet and wireless interface. In case of scripted networking
+  # (the default) this is the recommended approach. When using systemd-networkd it's
+  # still possible to use this option, but it's recommended to use it in conjunction
+  # with explicit per-interface declarations with `networking.interfaces.<interface>.useDHCP`.
+  networking.useDHCP = lib.mkDefault true;
+  # networking.interfaces.enp0s3.useDHCP = lib.mkDefault true;
+
+  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
+  virtualisation.virtualbox.guest.enable = true;
+  virtualisation.virtualbox.guest.x11 = true;
+}

vscode.nix

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+{pkgs, ...} : 
+{
+    programs.vscode = {
+        enable = true;
+        package = pkgs.vscodium;
+        extensions = with pkgs.vscode-extensions; [
+            bbenoist.nix
+            james-yu.latex-workshop
+        ];
+    };
+}